Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation Commission
Loading...
HomeMy WebLinkAboutCO 231 ACONSERVATION ORDER 231A
Docket Number: CO -20-009
1.
May 21, 2020
Notice of hearing, affidavit of publication, email
distribution, mailings
2.
June 26, 2020
CINGSA Request for a hearing
3.
August 3, 2020
Joint request from Hilcorp and CINGNA to cancel hearing
4.
August 4, 2020
Transcript and sign -in sheet
5.
August 12, 2020
Joint Request to Amend CO 231 and CO 231.001
6.
August 27, 2020
Transcript and sign -in sheet
ORDERS
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
333 West 7th Avenue
Anchorage, Alaska 99501
Re: THE MOTION OF THE ALASKA ) Docket Number: CO 20-009
OIL AND GAS CONSERVATION ) Conservation Order 23 ] A
COMMISSION to amend Conservation ) Kenai Gas Field
Order 231 to revise well spacing requirements ) Cannery Loop Unit
for the Beluga, Upper Tyonek, and Tyonek ) Beluga, Upper Tyonek, and
"D" Gas Pools, Kenai Gas Field, Cannery ) Tyonek "D" Gas Pools
Loop Unit, Kenai Peninsula Borough, Cook ) Kenai Peninsula Borough,
Inlet Basin, Alaska. ) Cook Inlet Basin, Alaska
IT APPEARING THAT: September 9, 2020
1. On its own motion, the Alaska Oil and Gas Conservation Commission (AOGCC) set a hearing
to consider amending Conservation Order Number 231 (CO 23 1) to review whether a 1,500 -
foot offset requirement is necessary for a vertical property line in the case of a segmented oil
and gas lease.
2. Pursuant to 20 AAC 25.540, the AOGCC tentatively scheduled a public hearing for August 4,
2020. On May 19, 2020, the AOGCC published notice of the hearing on the State of Alaska's
Online Public Notices website and on the AOGCC's website, and the AOGCC electronically
transmitted the notice to all persons on the AOGCC's email distribution list and mailed printed
copies of the notice to all persons on the AOGCC's mailing distribution list. On May 21, 2020,
the notice was published in the ANCHORAGE DAILY NEWS.
3. On June 26, 2020, the AOGCC received a request to hold the hearing.
4. The public hearing was convened August 4, 2020 and continued until August 27, 2020 in order
to allow Hilcorp Alaska, LLC (Hilcorp) and Cook Inlet Natural Gas Storage Alaska, LLC
(CINGSA) additional time to prepare testimony.
5. The public hearing was re -convened on August 27, 2020. Hilcorp and CINGSA provided
testimony. The hearing record closed.
6. Hilcorp's and CINGSA's testimony and AOGCC public records are the basis for this order.
FINDINGS:
1. Operators: Hilcorp is the operator of the CLU, which lies onshore within the Kenai Peninsula
Borough, Cook Inlet Basin, Alaska. CINGSA is operator of the Sterling C Gas Storage
Reservoir that also lies within the CLU.
2. Owners and Landowners: All leases in the CLU are owned 100% by Hilcorp except for State
of Alaska lease ADL 391627, a vertical lease segment, with clearly defined lateral, top, and
bottom boundaries. ADL 391627 is owned by CINGSA. The State of Alaska, Department of
Natural Resources (DNR) and private parties are landowners.
3. Pool Definitions: The Cannery Loop Field contains one gas storage pool and three actively
producing natural gas pools. They are, in descending stratigraphic order: Sterling C Gas
Storage Pool, Beluga Gas Pool, Upper Tyonek Gas Pool, and Tyonek "D" Gas Pool. Storage
CO 231A
September 9, 2020
Page 2 of 9
Injection Order No. 9 (SIO 9) defines the Sterling C Gas Storage Pool I (Figure 1, below) and
CO 231—the pool rules governing CLU development operations—defines the current Beluga,
Upper Tyonek, and Tyonek "D" Gas Pools (Figures 2 and 3, below).
4. Structure: The geologic structure within the CLU is an anticline with four-way dip closure as
demonstrated by structure maps provided by Hilcorp and Union Oil Company (former operator
of the field) at the top of the Sterling C Gas Storage Pool and at the tops of the underlying
Beluga and Tyonek Formations.
5. Confinement: Upper confinement for the Sterling C Gas Storage Pool is provided by siltstone
and mudstone layers near the base of the Sterling B interval and by the B5 coal, which is 10 to
20 feet thick and laterally continuous across the CLU structure (Figure 1). Lower confinement
is provided by a siltstone and mudstone interval at the base of the Sterling Formation and
within the top of the Beluga Formation that is 30 to 55 feet in thickness and laterally continuous
across the CLU structure. Fracture pressure, reservoir pressure, and production information
demonstrate that these confining zones are effective reservoir seals.
6. Well Spacing Requirements: In the absence of an order to the contrary, 20 AAC 25.055, allows
testing or regular production within 1,500 feet of a property line only if the owner is the same
and the landowner is the same on both sides of the line. Rule 3 of CO 231 establishes drilling
units of a quarter -quarter subdivision of a governmental section. Rule 4 of CO 231 prohibits
regular gas production closer than 1,500 feet to the boundary of the Affected Area or closer
than 500 feet to the boundary of the Participating Area established for that pool. CO 231.001
allows testing, completion, and production of CLU 13 provided the well is not opened to
regular production closer than 1,500 feet to any property that is not committed to the CLU and
the well is not opened within 1,500 true vertical feet of the base of the Sterling C Gas Storage
Pool—a property line separating CINGSA's lease ADL 391627 from Hilcorp's underlying and
overlying leases.
7. Operations Protocols: Hilcorp and CINGSA have jointly established a list of best protocols—
including ongoing exchange of applications, reports, well and cement evaluation logs, flow
and pressure data, and material balance analyses—as well as criteria for well -design and
cementing to ensure integrity of both productive and storage reservoirs. Hilcorp testified that
Hilcorp and CINGSA agree not to perforate within 50 true vertical feet of the base of the
Sterling C gas reservoir.
CONCLUSIONS:
1. Amending CO 231 for the Beluga, Upper Tyonek and Tyonek "D" Gas Pools is appropriate to
clarify well spacing, well construction, and well integrity requirements.
IAOGCC, 2010, SIO 9A, Rule 2: The Sterling C Gas Storage Pool consists of the interval within the Affected Area
that is common to, and correlating with, the measured depths from 6690' to 6945' in well CLU No. 8.
2AOGCC, 1987, CO 231, Rule 2:
a) The Beluga Gas Pool is defined as the accumulation of gas occurring within the affected area in sands
stratigraphically equivalent to the interval between the measured depths of 6081' and 9171' in Cannery Loop Unit
Well #1.
b) The Upper Tyonek Gas Pool is defined as the accumulation of gas occurring within the affected area in sands
stratigraphically equivalent to the interval between the measured depths of 9171' and 10,831' in Cannery Loop
Unit Well #1.
c) The Tyonek "D" Gas Pool is defined as the accumulation of gas occurring within the affected area in sands
stratigraphically equivalent to the interval between the measured depths of 10,831' and 11,962' in Cannery Loop
Unit Well #1.
C0 231 A
September 9, 2020
Page 3 of 9
2. Establishing consistent requirements will facilitate further development drilling and ensure
greater ultimate resource recovery, but will not promote waste, jeopardize correlative rights,
or result in an increased risk of fluid movement into freshwater aquifers.
NOW, THEREFORE, IT IS ORDERED:
The continued development and operation of the Beluga, Upper Tyonek and Tyonek "D" Gas
Pools is subject to the following rules and the statewide requirements under 20 AAC 25, to the
extent not superseded by these rules. This order supersedes Conservation Order 231 and
Conservation Order 231.001.
Affected Area (Restated from CO 231)
Seward Meridian
ownshi Range
Sections
06N, Rl 1 W
32, 33, 34
05N, Rl 1W
3, 4, 5, 6, 7, 8, 9, 10, and 18
fTO5N,
RI 1 W
Those portions of Sections 16, 17, 19, and
20 lying north of the Cannery Loop Fault
trace as depicted on Exhibit "C" of the July
8, 1987 Public Hearing Record.
Rule 1 Pool Definitions (Restated from CO 231)
The Beluga Gas Pool is defined as the accumulation of gas occurring within the affected area in
sands stratigraphically equivalent to the interval between the measured depths of 6081' and 9171'
in Cannery Loop Unit Well #1.
The Upper Tyonek Gas Pool is defined as the accumulation of gas occurring within the affected
area in sands stratigraphically equivalent to the interval between the measured depths of 9171'
and 10,831' in Cannery Loop Unit Well #1.
The Tyonek "D" Gas Pool is defined as the accumulation of gas occurring within the affected area
in sands stratigraphically equivalent to the interval between the measured depths of 10,831' and
11,962' in Cannery Loop Unit Well #1.
Rule 2 Well Snacine (Revised this order)
There shall be no restrictions as to well spacing in horizontal directions within the Beluga, Upper
Tyonek, or Tyonek "D" Gas Pools except that no hydrocarbon -bearing interval shall be opened
in a well within 1,500 feet of a horizontal, external property line where the owners and landowners
are not the same on both sides of the line.
No hydrocarbon -bearing interval may be opened to a well within 50 true vertical feet of the
Sterling C Gas Storage Pool.
No hydrocarbon -bearing zone may be opened to a well between 50 and 100 true vertical feet of
the Sterling C Gas Storage Pool without advance approval from the AOGCC. Each application to
perforate within this interval must be accompanied by a cement evaluation log and statements
CO 231A
September 9, 2020
Page 4 of 9
1640140
501331001400
2253 ft
J
UNOCAL
KENAI UNIT 13-08
1774 FSL 1034 FWL
TWP: 5 N - Range: 11 W - Sec. 8
2040050
501332053400
MARATHON
CANNERY LOOP UNIT 8
208 FSL 486 FEL
TWP: 5 N - Range: 11 W - Sec.
Figure 1. KU 13-08 and CLU -8 Reference Logs, Sterling C Gas Storage Pool3
from Hilcorp and CINGSA agreeing that log demonstrates good pipe -to -formation bond
beginning within the Sterling C Gas Storage Pool and continuing uninterrupted beyond the
planned open zone(s). If pipe -to -formation cement bond appears less than good quality to
CINGSA or AOGCC, Hilcorp will provide AOGCC a written evaluation of pipe -to -formation
cement bond from a qualified, third -party, professional engineer.
3 Figure 1 is for illustration purposes only. Refer. to well logs recorded in wells Kenai Unit No. 13-08 and Cannery
Loop Unit No. 8 and Storage Injection Order No. 9 for a precise representation of the Sterling C Gas Storage Pool.
CO 231 A
September 9, 2020
Page 5 of 9
6
O
0-
U) N
N
0
Betug
Tyo
SP
Carel n De h
Ress
PO..
SP...
1)0 MV
. _...._CALL...... pD
30 IN
Res00 LD
RHOS
2
2 OHIAM
2000.65 GC3 26
GR TVOSS>
DRHO
GAP, 150
0.2 GIACC 0.
RHG6 <
I B GIC3 1 Bt
NPOR(CNS
0 %
ea
DTCP(OT
5o us/ 5
aW. 10 -Sha
St ding For
ation - 6000 3100
sh gaForm
on - Top
3200
6200
6300 5300
6400 -5400
6500 -5500
6600
-8600
..::
6700
-5700
t
shoo
-_
6900 •seoo
'=
7000 -5900
7100 6000
7200 3100
7300
6200
7400
6300
7500
7600 6400.
7700 6500
—
7800 -6600
_
7900 6700
8000 6800
8100
69M
8200
7000
--
8300
-7100
•-
8400
8500 -7200
- - ..
8600 -73M
8700 7400
.
8800
_7500
8900
-..`.
7600
9000
Format)
-Base
9100 -7700.,
-
9
Figure 2. CLU -1 Reference Log, Beluga Gas Poo14
4 Figure 2 is for illustration purposes only. Refer to well logs recorded in Cannery Loop Unit No. 1 for a precise
representation of the Beluga Gas Pool.
CO231A
September 9. 2020
Page 6 of 9
BeIL
Tyol
O
O
a
f6
0
Y
N
C
O
H
N
CL
CL
D
SP
CORelatDn
Depth
Reds PO'O51
SP
CALI
AO
ResDPLD) RHOS
2 OHIAA 2000165 G.Ca 265
170 MV 305
ll 25
GR
T10SS>
ORHO
GAPI 1501
0.2 GI.vCC 0.
OB
<
NPOR(CIJsj
19 G/C3 191
0 %
OTCP(DT)
50 USF 5
SaM-5111-sial
S
s••
8800
.7500
<<<
j1
8900
7500
i
'.
-..E...
9000
a Forma n -Base
9100
-7700
ek Form n - .-. -.9
-7800
9300
.7900
�.,
9400
e000
9500
9600
-8100
"_--
9700
-8200
..__
9800
-8300
- ----
9900
10000
-esa0
10100
t
10200
-moo
--
10300
-8700
10400
.8800
10500
8900
----
10600
-9000
—"'
10700
10800
-9100
—
10900
-9200
11000
-9300
11100
-9400
{
11200
-5500
11300
11400
-%�
11500
-9700
--.
11600
-9800
_
1
11700
-saw
-
11800
-10000
11900
_10100
Figure 3. CLU -1 Reference Log (Continued), Upper Tyonek and Tyonek "D" Gas Pools
5 Figure 3 is for illustration purposes only. Refer to well logs recorded in Cannery Loop Unit No. 1 for precise
representations of the Upper Tyonek and Tyonek "D" Gas Pools.
CO 231 A
September 9, 2020
Page 7 of 9
Rule 3 Well Inteerity
For all newly drilled wells, an intermediate casing string must be set more than 50 feet below the
base of the Sterling C Gas Storage Pool and continuously cemented to a minimum of 250 vertical
feet above the top of that pool. A cement evaluation log must be provided to CINGSA and AOGCC
that demonstrates good quality pipe -to -formation bond across the gas storage pool. If pipe -to -
formation cement bond appears less than good quality to CINGSA or AOGCC, Hilcorp will
provide AOGCC a written evaluation of pipe -to -formation cement bond from a qualified, third -
party, professional engineer.
Rule 4 Administrative Action (Revised this order)
Upon proper application, or its own motion, and unless notice and public hearing are otherwise
required, the AOGCC may administratively waive the requirements of any rule stated herein or
administratively amend this order as long as the change does not promote waste or jeopardize
correlative rights, is based on sound engineering and geoscience principles, and will not result in
an increased risk of fluid movement into freshwater aquifers.
DONE at Anchorage, Alaska and dated September 9, 2020.
Jeremy kRlm,µ by
oraz 0 M"
M. Price�9.,e:3a-0
Jeremy M. Price
Chair, Commissioner
TION
Digitally signed by
Daniel T. Daniel T. Seamount• L.
Seamount, Jr. Dat,zgzDO9.o9
t9sz:4s-w•oa•
Daniel T. Seamount, Jr
Commissioner
Jessie L. Digitally signed by
Janie L Chmlelowekl
Chmielowski 11:z020 -w 10
08:41:58-08'00'
Jessie L. Chmielowski
Commissioner
As provided in AS 31.05.080(a), within 20 days after written notice of the entry of this order or decision, or such further time as the AOGCC
grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration of the matter determined by it.
If the notice was mailed, then the period of time shall be 23 days. An application for reconsideration must set out the respect in which the order or
decision is believed to be erroneous.
The AOGCC shall grant or refuse the application for reconsideration in whole or in part within 10 days after it is filed. Failure to act on it within
10 -days is a denial of reconsideration. If the AOGCC denies reconsideration, upon denial, this order or decision and the denial of reconsideration
are FINAL and may be appealed to superior court. The appeal MUST be filed within 33 days after the date on which the AOGCC mails, OR 30
days if the AOGCC otherwise distributes, the order or decision denying reconsideration, UNLESS the denial is by inaction, in which case the
appeal MUST be filed within 40 days after the date on which the application for reconsideration was filed.
If the AOGCC grants an application for reconsideration, this order or decision does not become final. Rather, the order or decision on
reconsideration will be the FINAL order or decision of the AOGCC, and it may be appealed to superior court. That appeal MUST be filed within
33 days after the date on which the AOGCC mails, OR 30 days if the AOGCC otherwise distributes, the order or decision on reconsideration.
In computing a period of time above, the date of the event or default after which the designated period begins to run is not included in the period;
the last day of the period is included, unless it falls on a weekend or state holiday, in which event the period runs until 5:00 p.m. on the next day
that does not fall on a weekend or state holiday.
Bernie Karl
K&K Recycling Inc.
P.O. Box 58055
Fairbanks, AK 99711
George Vaught, Jr.
P.O. Box 13557
Denver, CO 80201-3557
Gordon Severson
3201 Westmar Cir.
Anchorage, AK 99508-4336
Darwin Waldsmith
P.O. Box 39309
Ninilchik, AK 99639
Richard Wagner
P.O. Box 60868
Fairbanks, AK 99706
INDEXES
PUBLIC MEETING AOGCC
8/27/2020 ITMO: APPLICATION OF MLCORP AK FOR SUNDRY APPROVAL
D VK Nn rn 1n.
ALASKA OIL AND GAS CONSERVATION COMMISSION
In the Matter of the Application of )
Hilcorp Alaska for Sundry Approval to )
Perforate Cannery Loop Wells 13C and 15C )
Which Pass Through the Sterling C Gas )
Storage Pool and Which are Within 1,500 )
Feet of the Vertical Property Line. )
Docket No.: CO 20-009
PUBLIC HEARING
August 27, 2020
10:00 o'clock a.m.
BEFORE: Jeremy Price, Chairman
Jessie Chmielowski, Commissioner
Daniel T. Seamount, Commissioner
w.y..�, Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Awh. AK 99501 Fax: 907-243-1473
Email: sahileQgei.net
PUBLIC MEETING AOGCC 8/272020 ITMO: APPLICATION OF NILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Computer Matrix, LLC Phone: 907-243-0668
135 Christemen Dr., Ste. 2., Arch. AK 99501 Fax: 907-243-1473 Emil: saWle@gci.net
Page 2
1
TABLE OF CONTENTS
2
Opening remarks by Commissioner Seamount
03
3
Testimony
by
Cody Terrell
08
4
Testimony
by
Anthony McConkey
10
5
Testimony
by
Ben Siks
12
6
Testimony
by
Taylor Wellman
27
7
Testimony
by
Moria Smith
31
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Computer Matrix, LLC Phone: 907-243-0668
135 Christemen Dr., Ste. 2., Arch. AK 99501 Fax: 907-243-1473 Emil: saWle@gci.net
PUBLIC MEETING A(x7C'C
827/2020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
D( KFT Nn I`D en nno
Page 3
1
P R
O C E E D I N G
S
2
(On record -
10:05 a.m.)
3
COMMISSIONER
SEAMOUNT: Good
morning. I'll
4
call this meeting to
order. This is
docket number CO
5
20-009, considering the
amendment of
conservation order
6
231. This hearing is
being held on the
morning of
7
August 27th, 2020 at
10:05 a.m. This
is the location
8
of the Alaska Oil and
Gas Conservation Commission,
9 AOGCC. Our offices here are at 333 West 7th Avenue,
10 Anchorage, Alaska. Before we begin I'll introduce the
11 Commissioners. To my right is Commissioner Jessie
12 Chmielowski, Commissioner and Chair Jeremy Price is
13 attending telephonically and I'm Commissioner Dan
14 Seamount,
15 If any persons here or on the phone needs
16 special accommodations to participate in these
17 proceedings please contact Jody Colombie who you've
18 been listening to for a while, she's in the back there.
19 You can hand her a note or if you're listening
20 telephonically you can call her at 793-1221 and you can
21 relay your questions to her that way. She'll do her
22 best to accommodate you.
23 Computer Matrix is recording the proceeding.
24 Upon completion and preparation of the transcript
25 persons desiring a copy will be able to obtain it by
°' L° ,`1 Phone: 907-243-0668
135 Chapman Dr_ Ste_ 2, Aiwh. AK 99501 Fax: 907-243-1473
Email: sahlle iugci.nel
PUBLIC MEETING AOGCC
8/2712020 ITMO: APPLICATION OF HILCORP AN FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 4
1 contacting Computer Matrix.
2 This docket was first heard on August 4th,
3 2020. On August 3rd, 2020, Cook Inlet Natural Gas
4 Storage, known as CINGSA, requested that the August
5 4th, 2020 hearing be continued. Subsequently the
6 Commission granted the request. AOGCC went on the
7 record with all parties on August 4th, 2020 for
g calendaring
purposes
and all
parties
agreed to the
9 continuance
and the
hearing
was set
for today.
10 Hilcorp submitted application for sundry
11
approval
forms to perforate the
Cannery Loop or CLU 13
12
and CLU
15 wells. Both the CLU
13 and the CLU 15 pass
13
through
reservoir sands within
CINGSA's Sterling C gas
14
storage
pool. Because some of
the intervals Hilcorp
15 seeks to perforate are within 1,500 feet of the
16 vertical property line of the gas storage pool, state
17 of Alaska lease ADL 39167 requires spacing exceptions
18 under rule 4 of conservation order CO 231 and possibly
19 regulation AAC 25.055.
20 As a result on its own motion AOGCC set this
21
hearing
to consider
amending
CO 231.
Specifically
22
AOGCC is
reviewing
whether a
1,500
foot offset
23 requirement is appropriate for a vertical property
24 line.
25 The notice of this hearing was published in the
Computer Matrix, LLC Phone: 907-243-0666
135 Christensen Dr-, Ste. 2, Anch, AK 99501 Fax: 907-243-147} Email: saule(t9ganet
PUBLIC MEETING AOGCC
8/2712020 ITMOI APPLICATION OF BILCORP AK FOR SUNDRY APPROVAL
DOCkFT NO rn M nno
Page 5
1 Anchorage Daily News on May 19th, 2020. It was also
2 posted on the state of Alaska Online Notices website
3 email distribution list as well as AOGCC's own website.
4 Subsequently CINGSA requested that this hearing
5 be held on June 26th, 2020. On August 12th, 2020
6 Hilcorp and CINGSA filed a joint response to each of
7 the questions that AOGCC asked them to clarify.
8 Let's see, how many people do we have to
9 potentially testify. I heard someone say that they
10 were there for questions, I don't know if they said yes
11 on this. But anyway it looks like one, two, three,
12 four, five, six, seven people say they're going to --
13 I'm going to say potentially testify. I didn't know I
14 could count that high, but yeah, there's seven. It
15 appears that Hilcorp and CINGSA intend to testify. Are
16 there any other parties planning to testify?
17 (No comments)
18 COMMISSIONER SEAMOUNT: Okay. I will ask that
19 question one more time at the end of this hearing.
20 The Commissioners will ask questions during the
21 testimony. We will most likely take a recess to
22 consult with staff to determine whether additional
23 information or clarifying questions are necessary.
24 For those testifying please keep in mind that
25 you must speak into the microphone and the green light
wuFu�o� mnu,x, �w Phone: 907-243-0666
135 Christensen D[, Ste, 2.. Amit. AK 99501 Fax: 907-243-1473
Email: suhile(iugci.net
PUBLIC MFEI INC AOGCC
827/2020 11 MO. APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL.
DOCKET NO. CO 20-009
Page 6
1 needs to be shining bright. It'll be green when it's
2 dull, but it needs to be fish lure light. Please speak
3 in the microphone so that those in the audience and the
4 court reporter can hear. Also please remember to
5 reference your
slides so
that someone reading the
6 transcript or
the public
record can follow along. For
7 example refer
to slides
by their numbers if numbered or
8 their titles if not numbered.
9 We have a few ground rules on what is allowed
10 to -- for testimony. First of all all testimony must
11 be relevant to the purposes of the hearing that I
12 outlined a few minutes ago and to the statutory
13 authority of the AOGCC. Anyone desiring to testify may
14 do so, but if the testimony drifts off subject we will
15 limit the testimony to three minutes. Additionally
16 testimony may not take the form of cross examination.
17 As I said before the Commissioners will be asking the
18 questions. And finally testimony that is disrespectful
19 or inappropriate will not be allowed and I probably do
20 not even need to say that.
21 Commissioners Price or Chmielowski, do you have
22 anything to add, did I miss anything?
23 COMMISSIONER CHMIELOWSKI: Nothing to add,
24 sounds great. Thank you.
25 COMMISSIONER SEAMOUNT: Commissioner Price.
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Aneh, AK 99501 Fax 907-243-1473 Email: sahile®gci.net
PUBLIC MFFTING AOGCC
8'27,'2020 11 MO APPLICAI70N OF fill -CORP AK FOR SUNDRY APPROVAL
11OCV rT.n I- "I nnn
Page 7
1 CHAIRMAN PRICE: Nothing for me, thanks.
2 COMMISSIONER SEAMOUNT: Okay.
3 CHAIRMAN PRICE: No.
4 COMMISSIONER SEAMOUNT: All right. We'll start
5 with the testimony, Who should we start with first,
6 CINGSA or Hilcorp? I see a finger pointed toward
7 Hilcorp.
8 Okay. Please identify yourself and your
9 qualifications and you may begin your testimony.
10 Oh, wait a minute, let me -- I'll swear you in
11 altogether. So please everyone testifying raise your
12 right hand including those I can't see that are on the
13 telephone. Go ahead, raise your right hands.
14 (Oath administered)
15 IN UNISON: Yes.
16 COMMISSIONER SEAMOUNT: I hear yeses. Okay.
17 Good. Okay. You may begin your testimony. Please
18 identify yourself.
19 MR. TERRELL: This is Cody Terrell. I am
20 landsman for Hilcorp Alaska, the Kenai team.
21 MR. McCONKEY: My name is Anthony McConkey.
22 I'm a reservoir engineer for Hilcorp. And just to go
23 back into the -- my expertise, I graduated from the
24
University
of Alaska,
Fairbanks in petroleum
25
engineering
in 2011, I
worked for BP for three years as
"I Phone: 907-243-0668
135 Chnstensen Dr., Ste, 2. Aitch. AK 99501 Far 907-243-1473
Hmail'. sahile(rLgci.nel
PUBLIC I MEETING AOGCC
827/2020 ITMO: APPLICATION OF IIJWORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 8
1 a production engineer and then I came over to Hilcorp
2 and have been working there for seven years as a
3 reservoir engineer.
4 MR. SIKS: My name is Ben Siks, I'm a geologist
5 for Hilcorp. I graduated in 2009 from University of
6 Texas with my master's degree, worked for BP for six
7 years and now I continue my work with Hilcorp.
8 COMMISSIONER SEAMOUNT: Okay. I -- I'm
9 terrible with names so every time you say something
10 please -- well, not every time, but if someone else
11 says something please identify yourself.
12 And, Cody, what was your last name?
13 MR. TERRELL: Terrell.
14 COMMISSIONER SEAMOUNT: Terrell, Cody Terrell.
15 okay. And you are a landsman. Okay.
16 Okay, Mr. Terrell, please do your presentation.
17 CODY TERRELL
18 previously sworn, called as a witness on behalf of
19 Hilcorp Alaska, testified as follows on:
20 DIRECT EXAMINATION
21 MR. TERRELL: Most of today will be covered by
22 Anthony and Ben. I just wanted to clarify a couple
23 things before we get started.
24 On the notice of public hearing for this
25 hearing today it says that both Cannery Loop 13 and
Clompmer Matrix, IISPhone: 907-243-0668
135 Chostensen Dr., Ste. 2., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gcLw
PUBLIC MEETING A000C
&272020 11 MO: APPLICAT ]ON OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO CO 20-009
Page 9
1 Cannery Loop 15 require a spacing exception under rule
2 4 of conservation order 231 and under statewide
3 spacing, 20 AAC 25,055. I just wanted to clarify that
4 the Cannery Loop Unit is governed by conservation order
5 231 and not statewide spacing because field portals had
6 been established for Cannery Loop Unit. There is a
7 spacing exception that has been issued for Cannery Loop
8 13, conservation order 231.001, which does establish a
9 1,500 foot offset from Sterling C. But conservation
10 order 231 does not have a rule in place where there's a
11 1,500 foot offset from vertical boundaries, it only has
12 a -- rule 4 that's stated in the public hearing notice
13 has a 1,500 foot offset from the boundary of the
14 affected area and a 500 foot boundary of the
15 participating area established for the pool.
16 So a conservation order is not required for
17 Cannery Loop 15, but Cannery Loop 13 it would be
18 required under 231.001. And it has been advised by
19 AOGCC that we establish a rule or a -- to see if there
20 is a setback requirement for the vertical property line
21 for Sterling C.
22
And I'll
turn
it over to Anthony and Ben to go
23
over what we --
but I
just wanted to clarify that there
24
is not a rule
in place
under the -- under conservation
25
order 231 for
an offset
from Sterling C.
Coinpvter Matrix, LLC Phone:907-243-0668
135 Clnistensen ER, Ste. 2., Awh, AK 99501 Fax: 907-243-1473 Email: sahile(Ogi. t
PUBLIC MEETING AOGCC
8/272020 ITMO: APPL.ICA'I ION OF HILCIORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 10
1 COMMISSIONER SEAMOUNT: Okay. Thank you.
2 ANTHONY McCONKEY
3 previously sworn, called as a witness on behalf of
4 Hilcorp Alaska, testified as follows on:
5 DIRECT EXAMINATION
6 MR. McCONKEY: Okay. So this is Anthony
7 McConkey speaking. Again I'm a reservoir engineer for
8 Hilcorp Alaska. I work Cannery Loop Unit which we'll
9 be talking about today.
10 We put together a small slide pack. The intent
11 of the slide pack was really to cover whether or not
12 it's reasonable to perf within 1,500 feet if we have
13 barriers within the reservoir. And then we're also
14 going to talk a little bit about what is our mechanical
15 isolation, so how would we isolate ourselves from the
16 Sterling C gas or sand. I'm -- I myself I personally
17 work the four storage reservoirs within Hilcorp so I
18 know the importance of maintaining isolation and we are
19 in absolute alignment with CINGSA that we do want to
20 ensure that we maintain isolation between the Beluga
21 sands and the Sterling C.
22 So I have moved to slide two, it's the contents
23 of what we'll be talking about today. So we're going
24 to start off, we're going to talk about the geologic
25 description of the confining zone. So, Ben Siks, our
Computer Matrix, LLC Phone: 907-243-0668
135 Christemeu Or., Ste_ 2., Anch. AK 99501 Fax 907-243-1473 Email' sahileCogdnel
PUBLIC MEETING AOGCC
827/2020 ITMO. APPLIC'A-CION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 11
1 geologist, he will describe the confining zones above
2 and below the Sterling C, what -- what contains that
3 gas in storage.....
4 MS. SMITH: Hey, Anthony, excuse me for
5 interrupting. Can you speak a little closer to the
6 microphone,.....
7 MR. McCONKEY: I'm sorry.
8 MS. SMITH: .....our experts on the phone are
9 having a hard time hearing.
10 Thanks.
11 MR. McCONKEY: I'm sorry. Okay. Sorry about
12 that. So okay, I will speak better in the microphone.
13 The next slide we'll -- few slides we'll talk
14 about is the Cannery Loop production history. I'm
15 going to show a production plot, I'm going to show
16 really just a timeline of the wells that were drilled
17 at Cannery Loop, what are the recent wells we've
18 drilled. After that I'll talk about Cannery Loop's
19 well completion styles. So there is a different style
20 in which we complete wells, we set casing over the
21 Sterling C with the intent to confine that gas storage
22 sand so we'll go into that. CLU 8 is a well that we
23 perfed particularly close to the storage reservoir, it
24 was about 85 feet TVD distance from that. So with that
25 we contacted CINGSA and AOGCC, we came up with a rate
C'empuler Matrix, LLC Phone: 907-243-0668
135 Christensen Dc, Ste. 2., Anch. AK 99501 I'm 907-243-148 Email: sahile(o,iei.net
PUBLIC MEETING AOGCC
8272020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. 0020-009
Page 12
1 and pressure monitoring system.
And
so we'll talk
2 about what we did there and the
tools
that we used for
3 that. And then lastly we'll --
we'll
close it with the
4 resource size in the middle and
upper
Beluga sands, why
5 this is important to us to be able to
perforate these
6 zones.
7
BEN SIKS
8 previously sworn, called as
a witness
on behalf of
9 Hilcorp Alaska, testified as
follows
on:
10
DIRECT EXAMINATION
11 MR. SIKS: All right. Make sure I get close to
12 the microphone here. Again my name's Ben Siks, I'm the
13 geologist that's working the Cannery Loop field.
14 So now we're on slide three. And just to kind
15
of orient
everybody on
the
slide
I have
a reference map
16
with the
unit outline
for
Cannery
Loop
with A to A
17
prime going through
the wells that
I'm displaying. On
18
the left is Cannery
Loop 10, in the
middle Cannery Loop
19
8, and on the far side
Cannery Loop
15. So now we're
20
, talking about what's above the Sterling C, our
21
confining
zones. And really
this is in 100 percent
22
alignment
with SIO -009 which
is the injection order
23
forcing
the injection into
the Sterling sand. But
24
they're
capped by a thick,
laterally continuous coal
25
which is
referred to as.the
B5 coal. It's continuous
Computer Manx, LLC Phone: 907-243-0668
135 Christensen Dc, Ste, 2., Aneh. AK 99501 Fax: 907-243-1473 Email sahile(a gei.net
PUBLIC MEETING AOGCC
85272020 11 MO. APPLK A I ION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 13
1 over the crest of structure at Cannery Loop, 10 to 20
2 feet thick. The coal depth is approximately 4,900 feet
3 TVDSS and on the type log it is located at 6,670 feet
4 to 6,690 feet MD. So just kind of looking at the
5 confining pressures that were required, original
6 reservoir pressures were somewhere in the order of
7 2,206 PSI. The maximum injection pressure coming from
8 that SIO -009 is 2,483 PSI and then the leak -off test
9 arrived with the Sterling C sands from Cannery Loop 6
10 well showed a frac range from 29 to 3,400 PSI. So
11 they're operating well within the limits, that seal is
12 intact, it's across the whole structure so we're not
13 really having any issues with containment going above
14 it.
15 COMMISSIONER SEAMOUNT: Mr. Siks, on the -- I
16 assume that -- you said the type log was Cannery Loop
17 number 8.....
18 MR. SIKS: Yes.
19 COMMISSIONER SEAMOUNT: .....and the coal is
20 the high resistivity zone; is that correct?
21 MR. SIKS: It's usually marked by a high gamma
22 ray marker. So the logs going through that -- that
23 Cannery Loop 8 well are cased so they're getting a
24 little bit of noise attenuated in there, but it's a
25 very correlatable marker throughout the section.
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste, 2., Audi AK 99501 Fax: 907-243-1473 Email: sahileLg ,t et
PUBLIC MEETING AOGCC
8/272020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 14
1 COMMISSIONER SEAMOUNT: But it would -- it --
2 there's a red.....
3 MR. SIKS: The red is total gas in place.
4 COMMISSIONER SEAMOUNT: Oh, total gas.
5 MR. SIKS: Yep.
6 COMMISSIONER SEAMOUNT: Okay. And that -- that
7 is the coal, correct?
8 MR. SIKS: Yes.
9 COMMISSIONER SEAMOUNT: And then below that
10 you've got the sand, your storage sand; is that
11 correct?
12 MR. SIKS: The storage sands are below that,
13 yes.
14 COMMISSIONER SEAMOUNT: Okay. Okay. And this
15 will be the type log?
16 MR. SIKS: Yes, it is the type log in SIO -009.
17 COMMISSIONER SEAMOUNT: Okay. Okay. Thank
18 you.
19 MR. SIKS: Yep. Moving to slide four. Again
20 now we're just talking about the underlying strata. So
21 the Sterling C base is defined again in Cannery Loop 8
22 at that 5,101 foot TVDSS marker, right here in the
23 middle of the slide deck. And moving to CO 231, the
24 pool of the upper Beluga is defined at that 5,147
25 marker. So that leaves a 50ish foot no man's land of
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Anch. AK 99501 Fax: 907-243-1473 Email: saM[e@gci.net
PUBLIC MEETING AOGCC
8,272020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 15
1 shale that kind of is between the Sterling C base and
2 the top of where we have our pool in the upper Beluga.
3 And looking at that siltstone interval, you know, it's
4 a -- it's a -- again it's across the entire structure,
5 30 to 55 feet thick and where it's penetrated by the
6 wells the depth is approximately, you know, 51, 50 feet
7 TVDSS. You know, as structure changes that moves a
8 little bit, but again you're looking at similar
9 reservoir pressures because it's datum to the 4,966
10 coming from SIO -009 and because it's a little bit
11 shalier and not so much of a clay your density goes up
12 and thus your frac range estimate goes even higher.
13 We have also FITs which Anthony will go into in
14 these upper Beluga sands that show pressures up to 12
15 and a half pounds per gallon which would equate to, you
16 know, 31 to 3,300 PSI and showing no communication with
17 the overlying sand. So the seal on the bottom is very
18 much intact as well.
19 With that I'll hand it over to Anthony.
20 MR. McCONKEY: Okay. The slide we're looking
21 at now is slide number 5, titled CLU Field Production.
22 What I wanted to show with this slide is really just
23 the history of the drilled wells at Cannery Loop and at
24 what point was this storage injection order 9 put into
25 place. And up into 2010 when the storage injection
Computer Matrix. LLC Phone: 907-243-0668
135 Christensen Dr, Ste. 2-, Ar& AK 99501 IF= 907-243-1473 Email: sAule,gg, net
PUBLIC MEETING AOGCC
8'27/2020 ITMO: APPLICATION OF IHL( IORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO20-009
Page 16
1 order was put into place we had drilled 11 wells at
2 Cannery Loop and of those nine produced. At the time
3 when that storage injection order was put in place we
4 had multiple wells that were open within 1,500 feet and
5 at that time there was proof of isolation that was part
6 of the storage injection order application. So again
7 that in itself shows that there is a geologic isolation
g component to this.
9
Going
forward within
Hilcorp we drilled four
10
wells, one of
those being a
sidetrack, CLU 13, we
11
sidetracked CLU
5RD and then
drilled CLU 14 and 15.
12
One of
the things
we
learned when we
drilled CLU 13
is
13
-- and
we'll talk
a
little bit more
about this when
we
14
get
into the completion
styles,
but the
Sterling C
and
15
the
Beluga sands are in
the same
string
of pipe so
then
16 you're relying on good cement bond in order to isolate
17 yourself. Now CLU 13 did not have the best cement bond
18 isolation near the Sterling gas sand, that was the
19 reason, at least I believe, for that exemption to or
20 the amendment to the conservation order. And as of
21
right
now we don't
have any
further
plans.
We
did, but
22
when
we looked at
it further
and we
looked
at
the CDL,
23
we currently do
not have
any plans
to
perforate any
24
zones below the
Sterling
C in CLU
13.
25
With CLU
5, CLU
14 and CLU
15
we came up with a
Computer Matrix, LLC Phone- 907243-0668
135 Christensen Dr, Ste, 2.- Anch. AK 99501 Fax 907-243-1473 Email sahfle(a gcinet
PUNIJ(MFEl7NGAOCICC
8272020 ITMO: APPLICATION OF lilt CORP AK FOR SUNDRY APPROVAI-
DOCKET NO( 0 20-009
Page 17
1 different style, So in CLU 5 when that was sidetrack
2 it was milled out below the Sterling C and then we did
3 the thick test as has been mentioned to prove isolation
4 from Sterling C. And with CLU 14 and 15 we set an
5 intermediate casing string across the Sterling C with
6 the intent for isolation.
7 So looking at slide six we're looking at CLU
8 5RD's completion. And again on the right side is a
9 schematic, it's a picture of the well. And really what
10 1 just wanted to show is how this was sidetracked. So
11 the nine and five-eighths, we came out of the nine and
12 five-eighths, the mill out window was below the
13 Sterling C. After we went out we drilled down to
14 6,562, that was about 30 to 40 feet below the mill out
15 window, ran a formation integrity test which passed
16 proving isolation from that string to the intermediate
17 casing string which contains Sterling C.
18 In CLU 14, this is really the style wells that
19 we drilled in -- last year in 2019, this year with CLU
20 15 in 2020 and what we intend to do going forward which
21 is we intentionally set our intermediate casing string
22 across the Sterling C. Again we did that in this case,
23 we ran cement, we ran a CDL before drilling out and
24 then when we did drill out we drilled down to 6,855
25 measured depth, ran a formation integrity test which
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste- 2., Anch. AK 99501 Fax: 907-243-1471 Email sahile(Ngcl. net
PUBLIC MEETING AOGC'C
6/27/2020 ITMO. APPI KATION OP HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 18
1 passed proving isolation.
2 And lastly, again this is a little redundant,
3 but CLU 15
again same
style,
set intermediate string
4 below the
Sterling C,
pumped
cement,
got a CDL, ran a
5 formation
integrity test that
passed
below that. And
6 this is -- this is slide eight.
7 So moving on to slide nine. So CLU 8 was
8 drilled in 2004 and this was an old escape completion
9 drilled by Marathon and at the time when they did this,
10 they set the intermediate casing string above the
11
Sterling C.
So again now what you had is
you had
12
cement that had
to be pumped all the way
up through the
13
Beluga sands
and past the Sterling C sand.
And when --
14
when we went
in last year and we went and
we perfed a
15
sand that was
above the shallowest perf,
it was
16
approximately --
I have the depths on here,
but it was
17
approximately 90
feet measured depth and 86
feet TVD
18
depth below the
Sterling C. We brought that
sand
19
online, it came
on a little stronger than we
thought.
20 So to ensure that we weren't actually producing any of
21 the Sterling C gas sands, Beau York was the operations
22 manager at the time and myself, we contacted AOGCC as
23
well
as Enstar
and CINGSA and
we came up with a plan to
24
shut
-- it was
during a shut-in
period for CINGSA, they
25
shut
that in,
we shut-in CLU 8
to compare pressures.
Computer Matrix, LLC Phone: 907-243-0665
135 Christensen Dc, Ste, 2., Aoch. AK 99501 Fax: 907-243-1473 Email: sahileLgci.nel
PUBLIC MEETING AOG('C
8/272020 ITMO. APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO20-009
Page 19
1 We kept CLU 8 shut-in a period longer to see if we saw
2 any reaction in the pressures from bringing CINGSA back
3 online and then after that we agreed to flowing
4 material balances back to P/Z plots on a monthly basis.
5 Again just to continue to ensure that we weren't
6 producing that sand.
7 COMMISSIONER CHMIELOWSKI: Mr. McConkey, just
8 to clarify, you said 80 feet TVD, is it -- is it
9 actually 42 feet based on your depth there? Oh, you
10 have a different number on the slide than I have.
11 MR. McCONKEY: Yes, I apologize. So -- so we
12 did have a previous version and our definition of the
13 base of the Sterling C differed from that of the
14 storage injection order and that of CINGSA. So what we
15 did is we actually corrected this to fall in line with
16 what CINGSA refers to as the base of the Sterling C.
17 COMMISSIONER CHMIELOWSKI: Okay.
18 MR. McCONKEY: And so that is why that depth
19 changed.
20 COMMISSIONER CHMIELOWSKI: Okay.
21 COMMISSIONER SEAMOUNT: Mr. McConkey, in -- we
22 had a hearing in 2010 and someone testified, I believe
23 it was CINGSA, that there was no potential in CLU 8.
24 Did I read that wrong, that the Sterling was all shaled
25 out and the Beluga did.....
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr, Ste, 2.. Arch. AK 99501 Fax907-243-1473 Email: sahile(a itemiet
PUBLICMEETING AOGCC
827.2020 ITMO: APPLICATION OF IIILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20 009
Page 20
1 MR. WALSH: Commissioner Seamount, this is Tom
2 Walsh with CINGSA. There may well have been testimony
3 about that. There was no potential in CLU 8 remaining
4 in the -- in the Sterling, it was depleted. I don't
5 recall testimony about the Beluga interval.
6 COMMISSIONER SEAMOUNT: Okay. Okay.
7 MS. SMITH: And, Commissioner Seamount, this is
8 Moria Smith with CINGSA. It's also possible that that
9 was testimony regarding CLU 6 which had depleted the
10 Sterling C sand.
11 COMMISSIONER SEAMOUNT: Yeah. I remember 8.
12 MS. SMITH: Okay.
13 COMMISSIONER SEAMOUNT: I wouldn't remember 6.
14 Not a major point.
15 MR. McCONKEY: Okay. All right. So moving on
16 -- this is Anthony McConkey. Moving on to slide 10,
17 again this just visualizes what we did. So we have our
18 intermediate casing set at 6,722, that's above the
19 Sterling C marker. The base of the Sterling C sand as
20 agreed upon between CINGSA and Hilcorp is 6,899, that's
21 about 5,100 or 5,101 feet TVD. Now the three bottom
22 green boxes that you see in that log, those were
23 existing perforations that were online and producing
24 since 2004, they were online and producing when the
25 storage injection order was approved and they've been
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Aneh. AK 99501 Fax:907-243-1473 Email sahile(rggci.nel
PUBLK MMINGAO(1C'C
827-2020 I IMO_ APPLI(A NON OF III I CORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20 009
Page 21
1 online and producing to this day. What we did is we
2 perfed an interval that was approximately 20 feet above
3 the shallowest perf interval. And again because of the
4 proximity of that perf to the Sterling C, we
5 proactively contacted AOGCC and CINGSA to ensure that
6 there was no sign of breach of Sterling C isolation.
7 So this is CLU 8's production plot. The well
8 actually loaded up, it began seeing water in 2000 -- I
9 can't really read that chart.....
10 COMMISSIONER SEAMOUNT: Could you.....
11 MR. McCONKEY: .....but again.....
12 COMMISSIONER SEAMOUNT: .....could you identify
13 that slide number, please.
14 MR. McCONKEY: Oh, sorry. So I'm now looking
15 at slide 11. This is CLU 8's production history. And
16 up into February, 2019 the well began seeing water and
17 it actually loaded up and we lost the well in February,
18 2019. So it remained shut-in for most of 2019. In
19 September of 2019 was when we went and we perforated
20 that zone. We also at the same time we set a plug
21 actually below those three escape modules that you saw
22 in the previous slide, in slide 10. And those top
23 three sands, while they did show production early on,
24 they seemed to be depleted at the time we set that
25 plug. So any further production will likely mostly be
Computer Matrix, IFc Phone: 907-243-0668
115 Christensen Dr.. Ste. 2., Aueh, AK 99501 Fax: 907-243-1473 Gmail_ sahile(ag rues
PUNLICMEEIING AOGCC
8/27;2020 1'1MO. APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKEINO, CO 20-009
5 CINGSA and AOGCC to confirm.
6 This is -- what we did is in October, it was
7 October 15th and 16th was when we had conversations
8 with AOGCC and CINGSA, we came up with a plan to shut
9 the well in, we did for seven days, we got our first
10 static which was about 1,550 PSI wellhead pressure and
11 we used the gauge at the wellhead to get that pressure.
12 The calculated bottomhole pressure from that is 1,760
13 PSI on that date. We continued producing the well, we
14
got another shut-in bottomhole
Page 22
1 coming from
that -- that new perf which was the
UB -1.
2 You can see
when we brought that online it came
at
3 about 3, 3 and a half million a day, that was a
little
4 higher than
we expected which prompted us to contact
P/Z plot
5 CINGSA and AOGCC to confirm.
6 This is -- what we did is in October, it was
7 October 15th and 16th was when we had conversations
8 with AOGCC and CINGSA, we came up with a plan to shut
9 the well in, we did for seven days, we got our first
10 static which was about 1,550 PSI wellhead pressure and
11 we used the gauge at the wellhead to get that pressure.
12 The calculated bottomhole pressure from that is 1,760
13 PSI on that date. We continued producing the well, we
14
got another shut-in bottomhole
pressure on April 19th
15
of this year, of 2020, and that
showed a
much lower
16
pressure of 1,068 PSI. So again
you can
draw a P/Z
17
plot, this is a standard static
P/Z plot
and you can
18
see that this shows a volume of
about .84
BCF original
19 gas in place. If you assume an 80 percent recovery
20 efficiency which is fairly standard in the industry,
21 that would give us an estimated EUR of about .70 BCF.
22 Now to further kind of confirm that this is a
23
decline curve analysis
of -- oh,
sorry, this is slide
24
13 I'm now looking at.
And this
is just a standard
25
decline curve analysis
and what
you're looking at is
('omputer Manna. LLC Phone: 907-243-0668
135 Christensen Dr_ Ste. 2., Aneh. AN 99501 Fax 907-243-1473 Email: sahfle6ag6 net
PUBLIC MELFING AOGCC
8,27/2020 11 MO, APPLK A ION OF 1411,CORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 23
1 that first drop, that first decline was we had the well
2 in high pressure and what that is is we did not have it
3 going through
a compressor, we
had
it
going directly to
4 the sales line
which was about
750
or
700 and -- yeah,
5 750 PSI.
And then in May or June we
started seeing
6 loading
issues so we did put it into
compression, we
7 brought
that pressure down to as low
as 150 PSI and
8
that is
that second bump you
see. And now that it's
9
sitting
at 150 PSI wellhead
pressure you're starting to
10
see that
decline again, it's
about a 90 percent
11 decline. But if you follow that decline out that gives
12 you about .66 BCF ultimate recovery in this well.
13 Again with that and the static P over Z we do not feel
14 that we are connected to the much larger Sterling C gas
15 storage sand.
16 MR. SIKS: Yeah, and this last is Ben Siks
17 speaking again on slide 14. Just kind of iterate what
18 1,500 feet TVD from the base of Sterling C looks like
19 for us at the Sterling, so again it's a cross section
20 going through the middle of the structure. And what I
21 have labeled here is the Sterling C at the top, the
22 upper Beluga, the middle Beluga and the lower Beluga
23 kind of broken up into chunks. And we're roughly
24 looking southwest to northeast. But really the volume
25 in place that we're talking about encompassed in the
Computer Matnx, LIC Phone: 907-243-0668
135 Christensen Dr., Ste, 2., Aneh AK 99501 Fax: 907-243-1473 Email: mIuIe m ei.nei
PUHIJC MEETING AOGCC'
8/27/2020 1 FMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO20-009
Page 24
1 upper and middle Beluga, P10, P90 ranges from 20 to 80
2 BCF remaining recoverable. So it's the -- it's the
3 bulk of our volume remaining at Cannery Loop sits in
4 these upper intervals. So the 1,500 feet is very
5 constraining from a future production standpoint.
6 COMMISSIONER SEAMOUNT: Ms. Recorder, do you
7 know who was speaking?
8 REPORTER: Yes.
9 COMMISSIONER SEAMOUNT: Okay.
10 MR. McCONKEY: Okay. So the first thing I do
11 want to mention, so the three wells that I talked about
12 early on CLU 5RD, CLU 14 and CLU 15, we do have
13 proposed perf intervals that are within that 1,500 foot
14 interval. The timing of those perforations, CLU 5RD
15 would likely come sooner, we'd like to do it as early
16 as the third quarter of this year, really dependent on
17 when we can get that spacing exemption. CLU 14 and 15,
18 those wells are doing pretty decent. We don't like to
19 open too many sands as once because it runs the risk
20 for water so those would likely be at later dates. CLU
21 14 might be towards the fourth quarter of this year
22 with CLU 15 being as late as first quarter of next
23 year. But again I just wanted to state that again to
24 give a timeline of when we're hoping to actually
25 perforate some of these sands.
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste, 2., Anch. AK 99501 Fax907-243-1473 Email: sahiletugcinet
PUBLIC MEETT ING AOGCC
827/2020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO20-009
6
taking note on. And that
Page 25
1 And the last thing
I just do
want to mention
2 too is that again going
back to we --
we came -- we
3 created a document and --
with CINGSA
that we agreed
4 upon, but there is some
verbiage that
I do want to
5 bring up that I think is
just worth the Commissioners
6
taking note on. And that
has to
do with
having a
7
minimum of 50 feet below
the Sterling C.
So there --
8
there's a line in here that
says
that --
there's a
9
couple lines, but one of
them is
that for
any existing
10
intermediate wells if the
casing
is not set
at least 50
11 feet below the Sterling C pool, CINGSA requires a
12 minimum of a hundred feet interval of good pipe to
13 formation bond of the primary casing stream below the
14 base of the Sterling C pool.
15 The reason why I bring this up is I'm going to
16 go back up to slide -- I'll go to slide seven which
17 shows CLU 14. Now in the case of these wells we did
18
set the casing
at least
50 feet below
the Sterling C
19
and we plan to
do so for
the most part.
But in this
20
situation if we
were not
-- if we did
not set it within
21
50 feet,
but we had
a passing formation integrity test
22
and the
rule states
that
we have to have at least 100
23
feet below
the base,
what
that would mean in this
24
scenario
is that when
you
pump cement, you pump cement
25
from the
bottoms up.
And
so what happens with that
Computer Metrix, LLC Phone: 907-243-0668
135 Christensen Dc, Ste. 2., Anch_ AK 99501 Fax 907-243-1473 Email: sahile(N,gcinet
PUHIJC MEETING ACHOCC
8/27/2020 TWO APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO CO20-009
Page 26
1 cement is as it comes up the hole it can mix with gas
2 that comes out, it could mix with the mud and as you
3 two probably well know your cement tends to have worse
4 integrity
towards
the
top
than
the bottom.
So
if
you
5 put that
in as a
rule
what
that
would mean
is
that
if
6 you have
4,000
or 5,000 feet of very good bond at the
7 bottom of
your
well, but you don't have that at the
g very top,
that
would limit you from being able to perf
9 anything
in the
well.
10 So what I want to caution is to maybe reword it
11 in that we have a certain amount of cement isolation
12
between
the proposed
intervals
and
the
Sterling
sand
13
itself.
And so if we
have that
and
the
depth of
that
14
that we're
proposing is either
100
feet
or
200 feet TVD
15
based on
your discretion, then
we
feel
that
that's
16 enough isolation and that we shouldn't need further
17 spacing exemptions for sands below that. And then I
18 also believe that the formation integrity test in these
19 situations do play a significant role as well.
20 And that's all I got.
21 COMMISSIONER SEAMOUNT: So you're talking about
22
commingling
Beluga sands when
you.....
23
MR.
McCONKEY: That is
correct.
24 COMMISSIONER SEAMOUNT: Okay. Any questions,
25 Commissioner Chmielowski?
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr, Ste. 2.- And). AK 99501 Fax 907-243-1473 Email: sahile@gci.net
PUBIJC MELIING AC)G('C
8,27/2020 ELMO, APPLICATION OF III LCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 271
1 COMMISSIONER CHMIELOWSKI: Yes. Just to
2 confirm, Mr. McConkey, does Hilcorp and CINGSA agree
3 not to perforate 50 feet TVD below Sterling C, is that
4 what you're saying?
5 MR. McCONKEY: That is correct.
6 COMMISSIONER SEAMOUNT: Okay. I'm curious to
7 know what type of tool will be used to evaluate the
8 cement in your CDL, are you planning sonic or
9 ultrasonic, what is the criteria?
10 MR. McCONKEY: So I'm going to let -- so Taylor
11 Wellman is our operations manager, I'm going to let him
12 answer those questions.
13 TAYLOR WELLMAN
14 previously sworn, called as a witness on behalf of
15 Hilcorp Alaska, testified as follows on:
16 DIRECT EXAMINATION
17 MR. WELLMAN: Yes. So this is Taylor Wellman
18 from -- the operations manager. Just to give a brief
19 description of my history as well that Anthony and Ben
20 did. I graduated in 2004 from Colorado School of Mines
21 and then I joined BP for about 10 and a half years and
22 then I've been with Hilcorp for the last six and in
23 this current role as operations manager for the Kenai
24 area.
25 So looking to that, Jessie or Commissioner
Computer Matrix, LLC Phone: 907-243-0666
135 C161teasen Dr. Ste_ 2_ Aueh_ AK 99501 Fax: 907-243-1473 Email: aahile(wgei.aet
PUBLIC MEETING AOGCC
8 27,2020 ITMO: APPLK AI JON OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO20-009
Page 28
1 Chmielowski, it would really -- our base plan is a
2 radio bond log that would go in there. If we did need
3 to go to a different cement blend that was of lighter,
4 it would kick us into some of the other tools, kind of
5 like the cast M or a usage bond log just to be able to
6 make sure that that isolation is there due to the
7 densities of the cement. So the base plan is the -- is
8 the radio bond log that we would typically run in these
9 ones.
10 COMMISSIONER CHMIELOWSKI: Thank you, Mr.
11 Wellman. I had a second question. If the cement bond
12 log is questionable who makes the call on whether
13 perforating can proceed, is either of you -- either
14 party planning to hire a third party to review a
15 questionable cement bond log?
16 MR. WELLMAN: How -- how we'd kind of gone
17 through it before as well is we've been able to work
18 with the AOGCC's technical staff on multiple iterations
19 of other time frames where specially in a -- as an
20 example would be conversion from a producer to an
21 injector. So we work with the technical engineering
22 staff and Chris Wallace as well to determine if there
23 is proper isolation there or not, kind of go back and
24 forth and then that determination is made kind of
25 jointly in there. And I believe that you guys kind of
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr.. Ste. 2., Anch. AK 99501 Fax 907-243-1473 Email: Wiile(, gRd net
PUBLIC M ELI ING AOGCC
8/27,'2020 ITMO: APPLI('ATION OF HIL('ORP AK FOR SUNDRY APPROVAI.
DOCKET NO ('020-009
Page 29
1 or the AOGCC technical staff has final say on that, has
2 been so far.
3 MS. SMITH: And, Commissioner.....
4 COMMISSIONER CHMIELOWSKI: Chmielowski.
5 MS. SMITH: .....Chmielowski, excuse me. This
6 is Moria Smith for CINGSA. The letter says that CINGSA
7 and Hilcorp must jointly agree to the assessment.
8 CINGSA is very likely to rely on third party experts
9 such as PRA and our reservoir engineer, Rick Gentges.
10 COMMISSIONER CHMIELOWSKI: Okay. Thank you.
11 Another question, will there be tie-in oversight when
12 perforating close to the storage pool and have Hilcorp
13 considered placing something like an RA tag in new
14 wells to ensure correct tie-in?
15 MR. McCONKEY: We do place RA tags in new
16 wells, yes, we absolutely do that. But as far as -- I
17 don't know if you want to.....
18 MR. SIKS: Tying in with third party.....
19 MR. WELLMAN: We did discuss that and jointly
20 CINGSA and Hilcorp when we were discussing that we
21 talked about different ways to ensure that and
22 basically what it came down to that if we weren't going
23 to come anywhere near -- we felt it was an appropriate
24 depth away from it that we would not be coming into
25 contact that they felt -- you know, we jointly felt
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr_ Ste, 2., Aneh. AK 99501 Pax: 907-243-1473 Email sahfle(mp,%t
PUBLIC MEETING AOG('C
8/272020 ITMO. APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. (020-009
Page 30
1 that it wasn't needed to have joint tie-ins for that.
2 That is -- that is where we got to in our discussions.
3 COMMISSIONER CHMIELOWSKI: So when perforating
4 close to the storage pool there will be some sort of
5 oversight of tie-ins is what you're saying?
6 MR. WELLMAN: As long as we -- it had been
7 trying to determine if we were going to get really
8 close as in the case with CLU 8 which we don't plan to
9 do any further. So if we -- as long as we agree to
10 stay out of that buffer zone there was no joint tie-ins
11 needed.
12 COMMISSIONER CHMIELOWSKI: Okay. Just to
13 clarify you're saying if it's greater than 50 feet TVD
14 below the base of Sterling C there's no -- no need for
15 tie-in oversight between the parties?
16 MR. WELLMAN: That is correct.
17 COMMISSIONER CHMIELOWSKI: Okay. Thank you.
18 No further questions, Commissioner Seamount, at this
19 time.
20 COMMISSIONER SEAMOUNT: Chair Price, do you
21 have any questions?
22 CHAIRMAN PRICE: No questions for me at this
23 time. Thank you.
24 COMMISSIONER SEAMOUNT: Okay. With that we'll
25 turn it over to CINGSA. Please identify yourself.
Computer Matrix. LLC Phone: 907-243-0668
135 Christensen Dr_ Ste. 2.. Anch, AK 99501 F.! 907-243-1473 Email: sahileQgci.net
Pl1HLIC MEETING AOGCC
8272020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 31
1 MORIA SMITH
2 previously sworn, called as a witness on behalf of
3 CINGSA, testified as follows on:
4 DIRECT EXAMINATION
5 MS. SMITH: I will. Good morning,
6 Commissioners. My name is Moria Smith and I am the
7 vice president and general counsel of CINGSA.
8 CINGSA as you know is a commercial natural gas
9 storage reservoir, the only one in the state of Alaska,
10 and it was certificated by this Commission in SIO -009
11 issued on November 19, 2010. This Commission
12 subsequently amended CINGSA's storage injection order
13 in 2014 when CINGSA inadvertently exceeded its storage
14 pressure limitation.
15 CINGSA has four firm storage customers, Enstar
16 Natural Gas Company, Chugach Electric Association,
17 Municipal Light and Power and Homer Electric
18 Association. These four firm customers have contracted
19 for all 11 BCF of CINGSA's storage capacity and for all
20 150 million cubic feet per day of CINGSA's withdrawal
21 capacity. CINGSA also offers interruptible storage
22 service to customers throughout the inlet.
23 Hilcorp approached CINGSA in the spring of 2020
24 with a request for a letter of non -objection to its
25 request to amend CO 231. CINGSA understood that the
Computer Matrix, LLC Phone: 907-243-0668
135 CIIMWns ' Dr., Ste- 2.. A.& AK 99501 Pax: 907-2434473 Email: saliile(a{gmnet
PUBLIC MEETING AOGCC
8/27/2020 ITMO: APPLICATION OF IBLCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 32
1 Commission had precluded any completion within 1,500
2 total vertical feet of the base of CINGSA's storage
3 reservoir. This was surprising because it was not
4 consistent with the agreement that had been reached
5 between the parties, Hilcorp's predecessor in interest,
6 Marathon, and CINGSA at the time that CINGSA acquired
7 the Sterling C reservoir from Marathon. It was also a
8 surprising interpretation of the regulation that had
9 been thought to apply horizontally and not vertically.
10 CINGSA was concerned at that point that as Hilcorp has
11 pointed out that certain of their.wells were completed
12 within 1,500 total vertical -- within 1,500 total
13
vertical depth of the
base of
CINGSA's reservoir.
14
After CINGSA
issued a
conditional letter of
15 non -objection on May 6, 2020, the parties began
16 extensive conversation regarding the appropriate path
17 forward. On May 21st, 2020 the Commission issued
18 public notice of a hearing and CINGSA notified the
19 Commission on June 27th, 2020 that it requested a
20 hearing. CINGSA understands that the Commission also
21 moved independently to have a hearing in this matter.
22 Following extensive deliberations the parties
23
reached an
agreement that was submitted
in the joint
24
request to
amend 231(a) which was filed
with the AOGCC
25
on August
3rd, 2020. This letter speaks
for itself,
Computer Mahix, LLC Pbow: 907-243-0668
135 Christensen Dr, Ste. 2., Anch. AK 99501 Fax: 907-243-1473 Email: sahile@gci.net
PUBLIC M Ee I JNG A0G( V
8272020 ITMO. APPLICATION OF I IILCORP AK FOR SUNDRIAPPROVAL
DOCKET NO. CO 20-009
Page 33
1 but it includes several provisions to ensure that two
2 goals are met. First, that Hilcorp's drilling
3 operations and CINGSA's storage operations can co -exist
4 long into the future and second, that both parties make
5 every effort to
mitigate
the risk of any loss of
6 mechanical and
functional
integrity between the storage
7 reservoir and Hilcorp's lower reservoirs, most
8 importantly the Beluga sands.
9 To be clear the risk of a loss of wellbore
10
integrity would be
dire
for
CINGSA,
for
Hilcorp
and for
11
CINGSA's customers
who
serve
almost
all
of the
gas and
12 electric needs of southcentral Alaska. I'm a lawyer so
13 it's not hard for me to imagine the extensive,
14 expensive and time consuming litigation that would
15 follow if there were to be a loss of integrity
16 especially in a worst case scenario if the parties were
17 not able to quickly agree on an allocation scheme there
18 is a risk of a cessation of production and storage
19 operations while the lawyers figure it out. This would
20 be bad for wells, it would be bad for the hundreds of
21 thousands of Alaskans who rely on gas and electric
22 service and it would be bad for Hilcorp and CINGSA's
23 operations. And it could lead to waste which of course
24 is prohibited in our constitution. It's for this
25 reason we were thankful that the Commission took this
Computer Matrix, LLC Phone_ 907-243-0668
135 Christensen Dr., Ste. 2., Anch, AK 99501 Fax: 907-243-1473 Finail: sahile(2gci.net
PUBLIC MEETING AOGCC
8/27/1020 ITMO: APPLICATION OF mLCORP AK FOR SUNDRY APPROVAL
DOCKET NO, CO 20-009
Page 34
1 seriously and took a hard
look at
this question.
2 Subsequent to the
parties'
agreement on the
3 terms that were included
in the August
3rd letter, Mr.
4 Davies of the Commission
sent CINGSA and Hilcorp four
5 questions to be addressed
at this
hearing. I'm going
6 to discuss each in turn.
I think
Hilcorp has covered
7 them in some detail, but
I'll put
just a bit of a finer
8 point on it.
9 First of all Mr. Davies asked about the
10 description of the confining zones that isolate the
11 Sterling C gas storage pool from Hilcorp's underlying
12 and overlying strata. I would refer the Commission to
13 rule 2 of FIO-9 which is the pool description. And I
14 would also refer the Commission to exhibit A, to the
15 August 12th, 2020 letter which includes certain
16 testimony and a Power Point from October of 2010 when
17 CINGSA applied for its storage injection order. I
18 believe that you will find the answer to that question
19 fully describe therein. And CINGSA and Hilcorp fully
20 agree on that. I
21 Second recommendations for minimum vertical
22 offset distance for perforations to ensure isolation of
23 the gas pool. This is answered in the August 3rd
24 letter and I'll just call out the relevant paragraph
25 for the record. As to all future wells CINGSA will
Computer Metrix, LLC Phone: 907-243-0668
135 Clnistemen Dr., Ste. 2., Anch. AK 99501 Fac: 907-243-1473 Email: saMle@gci.net
PUBLK MEETING AOGCC
8/27.'2020 ITMO: APPLICATION OF 111 LCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 35
1 require the intermediate casing be set and cemented a
2 minimum of 50 feet below the base of the Sterling C gas
3 storage pool. The CDL must show good cement bond
4 across this entire 50 foot interval. CINGSA and
5 Hilcorp must jointly agree to this assessment and the
6 casing must pass the AOGCC mandated MIT/leak-off test
7 of the casing shoe. For any existing wells if
8 intermediate casing is not set at least 50 feet below
9 the Sterling C pool CINGSA requires a minimum 100 feet
10 of interval of good pipe to formation bond of the
11 primary casing string below the base of the Sterling C
12 pool.
13 Richard Gentges, Rick Gentges, who is on the
14 line is a reservoir engineer with almost 40 years of
15 underground natural gas storage experience and hers
16 available to address any questions that you have on
17 CINGSA on this particular provision including on
18 Hilcorp's discussion of that final sentence that they
19 raised today.
20
The third question is evaluation of the primary
21
cement
to demonstrate isolation
of the gas
storage
22
pool.
And this is addressed in
the August
3rd and the
23
August
12th letter as well. Mr.
Gentges is
available
24
to answer any questions.
25
And finally initial and
continuing
surveillance
Computer Matrix, LLC Phone: 907-243-0668
135CImslemsen D, Ste, 2., AueII.AK99501 Fax: 907-243-1473 email: saluleMgei.net
PUBLIC MF,GLING AOGCC
8/272020 11MO: APPLICATION OI' HILCORP AK FOR SUNDRY APPROVAI.
DOCKET NO. CO 20-009
Page 36
1 methods to prove fluids are not moving between the gas
2 storage pool and adjacent strata similarly addressed in
3 the August 3rd and 12th letters and Mr. Gentges is
4 available to address that question. I would say also I
5 would be remiss if I didn't mention that Mr. Walsh is
6 here and is obviously an expert geologist available to
7 answer any questions that Mr. Gentges hands off to him.
8 CINGSA and Hilcorp are in agreement and we've
9 worked pretty hard to get to the point where we're in
10 agreement as to an appropriate and rational way to
11 preserve what is in everyone's interest which is to
12 ensure the functional and mechanical integrity of the
13 wells and ensure no loss of integrity that would lead
14 to any commingling of production gas and storage gas.
15 So with that I appreciate your time and I
16 appreciate your consideration of our joint submission.
17 Thank you.
18 COMMISSIONER SEAMOUNT: Thank you, Ms. Smith.
19 Commissioner Chmielowski, do you have any questions?
20 COMMISSIONER CHMIELOWSKI: No. Thank you.
21 COMMISSIONER SEAMOUNT: Chair Price, do you
22 have any questions of Ms. Smith?
23 CHAIRMAN PRICE: No questions. Thank you.
24 COMMISSIONER SEAMOUNT: Mr. Walsh, do you have
25 anything to add?
Computer Matrix, LLC Phone: 907-243-0668
135 Chnxtens n D[. Ste. 2_ Auer AK 99501 Fax: 907-243-1473 Email: sehile(,rgernet
PUBLICMEETING AOG('C
827/2020 1'PMO. APPLICATION OF BILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO20-009
Page 37
1 MR. WALSH: I'm available for questions. I do
2 want to just comment that we are in agreement with the
3 containment issues as raised by Hilcorp and I do
4 believe very strongly that the design of the -- of the
5 wells and perforations are very adequate mitigation
6 against the issues that -- the risk posed by any string
7 going through this section. Obviously as Ms. Smith
8 pointed out we can't afford a risk to the integrity of
9 the storage unit or of the surrounding reservoir and
10 for my view the mitigation measures that have been
11 taken and agreed upon by both parties are very strongly
12 going to mitigate that -- the risk of that.
13 COMMISSIONER SEAMOUNT: Okay. Ma c,n; rt, .,,,,,
14 said a few things at the beginning. Is your
15 understanding of spacing exception based on aerial,
16 geographical spacing or on volumetrics, you know, we
17 talk about 1,500 feet vertical, was that what surprised
18 you?
19
MS.
SMITH: Yes, Commissioner.
It was out --
20
and I'm now speaking for Mr. Walsh and
Mr. Gentges so
21
I'll speak
briefly and then allow them
to respond. But
22
it was our
understanding that that was
a horizontal
23
spacing exemption
and that Mr. Gentges
commented to me
24
that in his
experience in many other states working in
25
the storage
field he hadn't seen a vertical
exemption
wmpWer Malnx, LLC Phone_ 907-243-0668
135 Chnstensen Dr., SR, 2, AnO. AK 99501 Pax: 907-243-1473 Email: n
whileCwb'�'
.,net
PUBLIC ME1 I ING AOGCC
8/27!2020 ITMO- APPLICATION OF HILCORP AS FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 38
1 that was applied across the board in that way.
2 But, Mr. Gentges or Mr. Walsh, you're welcome
3 to jump in if I've misstated anything.
4 MR. WALSH: This is Mr. Walsh. Commissioner
5 Seamount,
I agree
with Ms.
Smith
and I
was
very
6 surprised
to see
the issue
of a
1,500
foot
vertical
7 spacing requirement and
it certainly is
counter to
the
8 agreement between CINGSA
and Marathon at
the onset
of
9 separating out the estate. That as pointed out by the
10 final slide presented by Hilcorp would preclude really
11 any significant production from the Beluga so I was
12 quite surprised to see that.
13 MS. SMITH: If I can add one more thing. When
14 -- when Mr. Walsh was talking about separating out the
15 estate, DNR has issued a segregation order segregating
16 the Sterling C pool out from the Cannery Loop Unit.
17 And again that I think that probably that 1,500 foot
18 spacing requirement is inconsistent with that because
19 the whole point of that was to carve out that vertical
20 section, deliver it to CINGSA, but allow Marathon to
21 continue production from the lower zones.
22 COMMISSIONER SEAMOUNT: Okay. As a rule are
23
you proposing
that
spacing
exceptions will not be
24
required, but
that
you want
to see workovers and
25 production from zones within what, 50 feet or 200 feet,
Computer Matrix, LLC Phone: 907-243-0668
135 Chnswe ,t Dr, SW, 2, Aad, AK 99501 F. 907-243-1473 Email- sali le(NLmLnet
PUBLIC MEETING AOGCC
1 would that be a rule?
8272020 IT MO_ APPLJCATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20 009
Page 391
2 MS. SMITH: I would refer you to that paragraph
3 from the August 3rd letter where they're sort of -- I
4 think the rule that were seeking is -- in the amendment
5 is that intermediate casing be set for any -- a minimum
6 of 50 feet below the base of the storage pool and that
7 if intermediate casing is not set then we need a
8 hundred foot buffer.
9 COMMISSIONER SEAMOUNT: But if Hilcorp.....
10 MS. SMITH: That's any future wells.
11 COMMISSIONER SEAMOUNT: .....if Hilcorp wants
12 to go let's say 500 feet below would you want -- well,
13 you'd see that, it would be a public record, but would
14 you -- would you want to see a spacing exception on
15 something like that?
16 MS. SMITH: CINGSA does not require that, no.
17 COMMISSIONER SEAMOUNT: Okay.
18 MS. SMITH: What we have asked for and you'll
19 see that on page 2 of our letter is extensive and --
20 and continuing on to page 3, is extensive data
21 exchange. So both parties are committing to extensive
22 data exchange in order to ensure that we have
23 integrity.
24 COMMISSIONER SEAMOUNT: Okay. Thank you. Do
25 the other two Commissioners have any questions before
`,a , 1u. Phone: 907-243-0668
135 Christensen Dc, Ste 2., Arch, AK 99501 F..: 907-243-1473
Email: sahile(Wgci.nel
PUBLIC MEM IN6 AOGCC
1 we take recess?
8272020 11 MO APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKI I NO. C0 20 009
Page 401
2 COMMISSIONER CHMIELOWSKI: No. Thank you.
3 COMMISSIONER CHMIELOWSKI: I have a question
4 for -- I'm not sure if that was Ben or -- sorry, Mr.
5 Siks or Mr. McConkey was talking since I can't see
6 their faces, but you were talking about the schedule
7 attempting to perf in third quarter for CLU 8 I think
8 it was; is that correct?
9 MR. McCONKEY: No. So for CLU 5RD we've
10 recompleted.....
11 CHAIRMAN PRICE: 5RD.
12 MR. McCONKEY: .....the well, giving us access.
13 So originally we had a packer above the perfs that we
14 wanted to perforate so we did a rig workover, that gave
15 us access to shallower Beluga sands. When we went to
16 go sundry those perforations they were denied due to
17 the 1,500 feet spacing. So we would like to still go
18 perforate those zones. CLU 5RD at the moment is making
19 -- I don't know what the rate is today, but it's --
20 it's a fairly low rate. So the sooner we can do it
21 really the better. And that's why I say we planned on
22 -- on really Q3, but it's -- it's whenever we get the
23 approval.
24 CHAIRMAN PRICE: Okay. Thank you.
25 COMMISSIONER CHMIELOWSKI: Okay. At this point
Computer Matrix, LLC Phone: 907-243-0668
135 Chnstensen Dc, Ste, 2., Anch. AN 99501 Fax: 907-243-1473 Email: sahile(mgci.nel
PUBLIC MEETING AOG(V
8272020 ITMO: APPLICATION OF HI LCORP AK POR SUNDRY APPROVAL
DOCKET NO M9n_nno
Page 41
1 we will take a 15 minute recess. It is 10:58 so we'll
2 be back at 11:13. Am I correct?
3 COMMISSIONER CHMIELOWSKI: Just say 15, yeah.
4 COMMISSIONER SEAMOUNT: Okay. We'll be back at
5 11:15 and we're always wrong on that. So we're taking
6 a recess.
7 (Off record - 10:58 a.m.)
8 (On record - 11:17 a.m.)
9 COMMISSIONER SEAMOUNT: Who turned it off?
10 MS. SMITH: And, Mr. Seamount or excuse me,
11 Commissioner Seamount, can I request our folks on the
12 phone just can't hear you. I don't know if it's
13 possible to get a little closer or.....
14 COMMISSIONER SEAMOUNT: Yes. I'm sorry.
15 MS. SMITH: Thank you. And my apologies.
16 COMMISSIONER SEAMOUNT: We're almost done.
17 That's one of my problems, I always lean back.
18 Okay. Can you hear me now?
19 (No comments)
20 COMMISSIONER SEAMOUNT: Okay. Are there any
21 questions from Commission Chmielowski?
22 COMMISSIONER CHMIELOWSKI: Yes, I have just one
23 question. I understand that Hilcorp has an outstanding
24 sundry to perforate well CLU 13. And did I hear
25 Hilcorp testify today that there are currently no plans
- Phone: 907-243-0668
135 Christensen Dr.. Ste. 2., Anch.AK 99501 Fax:907-243-1473
Email: sehile(;gci.ncl
PUBLIC MLETMO AOGCC
8'272020 FFMO: APPLICATION OF III LCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 42
1 to do those perforations and does Hilcorp plan to
2 withdraw that sundry?
3 MR. McCONKEY: That is correct.
4 COMMISSIONER CHMIELOWSKI: Okay. Thank you.
5 That's all I have, Commissioner Seamount.
6 COMMISSIONER SEAMOUNT: Chair Price, do you
7 have any questions?
8 CHAIRMAN PRICE: No questions for me. Thank
9 you.
10 COMMISSIONER SEAMOUNT: Are there any comments
11 from anyone else including the public?
12 (No comments)
13 COMMISSIONER SEAMOUNT: Do I hear a motion to
14 adjourn?
15 COMMISSIONER CHMIELOWSKI: I move to adjourn.
16 COMMISSIONER SEAMOUNT: Do I hear a second?
17 CHAIRMAN PRICE: Second.
18 COMMISSIONER SEAMOUNT: Okay. This hearing is
19 adjourned. I don't think we have any outstanding
20 questions. Okay. We're adjourned.
21 (Hearing adjourned - 11:19 a.m.)
22 (END OF PROCEEDINGS)
23
24
25
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2.. Anch AK 99501 Fax: 907-243-1473 Email. saluleCwgci.net
PUBLIC MEETING AOGCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
8/27/2020 1TMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
DOCKET NO. CO 20-009
Page 431
TRANSCRIBER'S CERTIFICATE
I, Salena A. Hile, hereby certify that the
foregoing pages numbered 02 through 43 are a true,
accurate, and complete transcript of proceedings in
Docket No.: CO 20-009, transcribed under my direction
from a copy of an electronic sound recording to the
best of our knowledge and ability.
DATE SALENA A. HILE, (Transcriber)
Computer Mahnx, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Anch. AK 99501 Fax: 907-243-1473 Email sahile@gci.nel
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
Docket Number: CO -20-009
August 27, 2020 at 10:00 am
AFFILIATION
Testify (yes or no)
"1 1CC) r- 2 C-
(,l�� � t` C/NGS V
on ICS p/,o 1
12 -one
CC
no
��
A
A
/)(f)
August 12, 2020
AOGCC
333 West 71' Avenue
Anchorage, AK 99501
Via Email and Federal Express
Re: Request to Amend Conservation Orders 231 and 231.001
Dear Commissioners:
AUG } 2 2020
AOGCC
In connection with Conservation Order 231.001, the Alaska Oil and Gas Commission ("AOGCC")
requested that Hilcorp Alaska, LLC ("Hilcorp") and Cook Inlet Natural Gas Storage Alaska, LLC
("CINGSA") provide information on four topics. Please find the joint response of Hilcorp and
CINGSA below.
AOGCC asked Hilcorp and CINGSA to provide the substance of any agreements regarding the
same to the AOGCC. As noted in a joint letter dated August 3, 2020 to the AOGCC from both
Hilcorp and CINGSA, Hilcorp and CINGSA provided direction and detail on the resolution of
issues between the parties regarding the requested spacing exemption. Both Hilcorp and
CINGSA ask that the AOGCC hearing on Conservation Order 231.001 be amended as such.
Pursuant to the AOGCC's authority under Rule 6 of Conservation Order 231, the parties
respectfully reiterate the request for the cancellation of the hearing, which is currently
scheduled for August 27, 2020. Hilcorp and CINGSA ask that Conversation Order be amended in
lieu of a hearing. In the alternative, Hilcorp and CINGSA respectfully request an earlier hearing
date of August 14 or 21, 2020.
In order to be fulsome and responsive to AOGCC's request on Conversation Order 231.001,
please find below answers to the four topics requested by AOGCC.
Descriptions of the confining zones that isolate the Sterling C Gas Storage Pool from
Hilcorp's underlying and overlying strata (e.g., name, description, depth, thickness, and
lateral extent).
Please see the attached Exhibit A.
2. Recommendations for minimum vertical offset distances for perforations to ensure
isolation of the gas storage pool.
Hilcorp and CINGSA agreed to no further perforations within 50 feet of the Sterling C
Gas Storage Pool.
Page 1 of 3
3. Evaluation of primary cement to demonstrate isolation of the gas storage pool.
Cement bond logs will be provided to 100 feet TVD below the Sterling C Gas Storage
Pool for all current Hilcorp wells that penetrate those sands. For CLU -8, which is open
within 50 feet, data will include the cement bond log as well as the perforation depth
correlation log. For any future well that penetrates the same, as commercially and
time practicable prior to perforating, cement bond logs will be provided to 100 feet
TVD of the Sterling C Gas Storage Pool. The cement bond log must show good pipe to
formation bond over an interval of at least 50 feet TVD below the base of the Sterling
C as defined by the CLU -8 type log. And as stated in the parties' August 3 letter, if
intermediate casing is not set at least 50 feet below the Sterling C Pool, CINGSA
requires a minimum of 100 feet interval of good pipe to formation bond of the
primary casing string below the base of the Sterling C Pool.
4. Initial and continuing surveillance methods to prove fluids are not moving between the
gas storage pool and adjacent strata.
Hilcorp and CINGSA agreed to provide (i) bottom hole pressure surveys with wells that
are open within 100 feet of TVD, (ii) open hole log data for the CLU -8 to 100 feet TVD
below the Sterling C Gas Pool, (iii) monthly casing and tubing pressures on all wells
that penetrate the same, (iv) for so long as CLU -8 is open within 50 feet, daily flow and
pressure data and monthly updates to CINGSA's material balance analysis.
Additionally, the parties agreed to notify each other of any condition that might
indicate a loss of integrity.
Hilcorp and CINGSA both believe that the agreed upon protocols, data sharing and agreed upon
actions, as outlined in their August 3, 2020 letter will avoid waste and are consistent with sound
engineering and geoscience principles.
Hilcorp and CINGSA appreciate the Commission's consideration of the request to timely amend
Conservation Orders 231 and 231.001 and cancel the associated hearing, or revision of the
hearing schedule to conduct it on an earlier date of August 14 or 21.
Page 2 of 3
Sincerely,
c1 ll�'"
Denali Kemp el
Hilcorp Alaska, LLC
"Z�"/ k . 3t ----
Moira Smith
CINGSA
Page 3 of 3
ALASKA OIL AND GAS CONSERVATION COMMISSION
Before Commissioners: Daniel T. Seamount, Chairman
John K. Norman
Cathy Foerster
In the Matter of COOK INLET NATURAL )
GAS STORAGE ALASKA, LLC (CINGSA), has )
applied for an order authorizing natural )
gas storage in the Cannery Loop Unit, ) SIO -10-05
Kenai Peninsula Borough in conformance )
with 20 AAC 25.252 and 20 AAC 25.412 )
In the Matter of COOK INLET NATURAL )
GAS STORAGE ALASKA, LLC, (CINGSA), has )
applied for an order exempting ) AEO-10-02
freshwater aquifers in the Cannery Loop )
Unit, Kenai Peninsula Borough in )
conformance with 20 AAC 25.440 )
ALASKA OIL and GAS CONSERVATION COMMISSION
Anchorage, Alaska
October 19th, 2010
9:00 o'clock a.m.
VOLUME I
PUBLIC HEARING
BEFORE: Daniel T. Seamount, Chairman
Cathy Foerster, Commissioner
Exhibit A
Page 1 of 124
1 2011, although if things progress we may be in a position to
2 actually start a month earlier, so.....
3 Currently we're contemplating the initial injection into
4 the reservoir beginning of April of 2012 and then finishing up
5 construction of the withdrawal facilities during the summer of
6 2012 so that the field is fully commissioned and available for
7 withdrawals in November of 2012.
8 I want to talk just a minute here about some updates to
9 the injection order application so that Staff is aware of them
10 and the Commission is aware of these. (Slide 9) We had -- as
11 I mentioned up front, we'd previously provided Staff with
12 updates on these changes and just wanted to make sure we have
13 them noted on the record today.
14 In our application we had initially indicated we would be
15 installing subsurface safety valves.....
16 CHAIRMAN SEAMOUNT: Which slide is that, Mr. Gentges?
17 MR. GENTGES: I'm sorry, slide 9.
18 CHAIRMAN SEAMOUNT: Okay, it's a common mistake that
19 people make.
20 MR. GENTGES: In our application -- initial application we
21 had indicated we would be installing subsurface safety valves
22 on two and seven/eighths tubing. We are proposing to change
23 that now to a wireline seven inch subsurface safety valve. And
24 the reason for the difference is we know there are new
25 requirements coming out for subsurface safety valves on
17
Exhibit A
Page 2 of 124
1 injection wells and from a practical standpoint in order to
2 meet the depth requirement a wireline set -- safety valve is --
3 provides a more efficient way to set and retrieve those.
4 we are also proposing to complete one of the wells
5 initially configured so that we can use the annulus for
6 disposal of drilling mud. In our original application we had
7 considered the prospect of off site disposal of drilling mud
8 and cuttings and we have since revisit that issue and the plan
9 will be to complete the first well and configure it initially
10 so that we can use the annular space for disposal of drilling
11 mud only.
12 The plan will be to come back into that well after we're
13 done using it for that purpose and grout it with cement back to
14 surface. And we'll talk a little bit more -- one of the other
15 witnesses will talk a little bit more about those specific
16 plans when he's -- when he's up testifying.
17 We had initially submitted in our application a geologic
18 cross-section and type long that identified the top of the
19 Sterling C1 formation and we have since gone back and revisited
20 that with Marathon to identify what we both agree to be a more
21 definitive, consistent marker across the top of the reservoir.
22 It is a fairly thick coal at the base of the B5 coal formation.
23 It's consistent across the reservoir.
24 The way we had defined it initially left some ambiguity
25 subject to interpretation as to exactly where the top of the
"Ll
Exhibit A
Page 3 of 124
1 Sterling formation is and so we wanted to submit this change to
2 basically get it in the record and ensure that there is no
3 ambiguity going forward in terms of the top of the reservoir.
4 And the last item I wanted to highlight for the Commission
5 is our plans to rework the Cannery Unit 13-8 well. In the
6 original application we had proposed to re-enter this well and
7 re -plug it. We have since had the opportunity to go in and do
8 a very detailed analysis on the well looking at its -- not only
9 the original drilling records associated with the well, the
10 condition in which it was left and all of the available records
11 associated with that well, in the context of production history
12 associated with not only the Cannery Loop Sterling formation,
13 but also the Beluga. And based on that very detail and
14 thorough analysis CINGSA has concluded that there is no need to
15 re-enter that well at this point in time, that it's adequately
16 plugged.
17 Having said that, to the extent that the Commission feels
18 the well needs to be re-entered and re -plugged, CINGSA is not
19 opposed to that. We just don't believe it's necessary based on
20 all the available data, so we've actually budgeted for it. We
21 had originally planned on it, but having gone through a very
22 detailed analysis we don't see a need to re-enter the well.
23 That concludes my potion of the testimony. I'm now going
24 to turn the presentation over to Mr. Tom Walsh who will testify
25 as to the geologic characteristics of the reservoir starting on
19
Exhibit A
Page 4 of 124
1 COMMISSIONER FOERSTER: So is that going to impact my
2 ability to go down to -- drive down to the Kenai next summer,
3 is there going to be, you know, the typical summer construction
4 problems?
5 MR. GENTGES: It's one of the things we understand and
6 recognize and we'll have to contend with probably most
7 importantly during the dip netting season so.....
8 COMMISSIONER FOERSTER: Well, that's his problem.
9 MR. GENTGES: Yeah. So during the course of construction
10 yes, there will be, you know, additional traffic --
11 construction traffic associated with the project.
12 Once the project is in service minimal impact in term of
13 day to day operation. The facility will in all likelihood be
14 staffed by three or four, maybe five people at most.
15 This is very similar to storage facilities that -- in my
16 past career I was involved with construction of -- as storage
17 facilities go it's a fairly simple design and a fairly small
18 one and obviously a fairly compact overall footprint between
19 the station and the well pad itself. There's only about 15
20 acres of actual facility construction so for a period of about
21 18 months the primary impact will be construction traffic.
22 Once it's in operation the facility will be highly
23 automated. In addition to being staffed, Realtime data will be
24 gathered not only on the compressor station, operations both
25 injections and withdrawals, Realtime pressure data, but also on
21
Exhibit A
Page 5 of 124
1 the wells themselves, so all of that information will be fed
2 back to the station where it can be monitored on a Realtime
3 basis, as well as telemetered (ph) to Enstar's gas control room
4 where it can be monitored and controlled as well.
5 COMMISSIONER FOERSTER: Based on your many years of
6 experience in gas storage, what do you consider to be the
7 primary risks associated with placing a gas storage facility
8 adjacent to a city?
9 MR. GENTGES: Well, the primary risks are obviously
10 ensuring public safety. The facility will be designed and
11 constructed -- surface facilities will be designed and
12 constructed in accordance with all Federal DOT natural gas
13 storage facilities of 49 CFR part 192 if you're familiar with
14 those.
15 The station will include automatic shut downs and
16 emergency isolation protocols and equipment so that in the
17 event of an emergency gas -- all the gas piping will be
18 blocked, isolated and the gas will be vented through -- in a
19 controlled basis through a vent silencer.
20 The storage wells themselves will be constructed with
21 redundant safety valve systems both on the well head and
22 subsurface so that in the event of any sort of incident, a line
23 break, any sort of gas leak at all, both the wells at the
24 surface and downhole can be isolated and shut-in. So
25 subsurface safety valves will be set at a depth of 150 feet
22
Exhibit A
Page 6 of 124
1 below ground level. Those are hydraulically activated and can
2 be activated either remotely, again, at the well pad there will
3 be a control panel, as well as a remote control panel at the
4 station to isolate those in the event of an emergency, so.....
5 In terms of the operation itself, the storage facility is
6 not fundamentally different than an oil or gas production
7 facility. It's basically used to inject gas into the reservoir
8 and then produce it back out so the equipment and facilities at
9 the station and at the well pad is very similar to a
10 conventional oil and gas production facility.
11 COMMISSIONER FOERSTER: Thank you for that very complete
12 answer. You actually answered a couple of my other questions,
13 so that helps.
14 On slide number 7 you say -- you show that there is 17 Bcf
15 total potential, what percentage of original gas in place does
16 that take you to?
17 MR. GENTGES: 17 Bcf with seven Bcf of working gas would
18 take it to a total inventory of about 24 Bcf, so 24 Bcf out of
19 an original gas in place of 26 and a half which is.....
20 COMMISSIONER FOERSTER: Okay, okay.
21 MR. GENTGES: .....about 90 percent, a little better than
22 90 percent of the original gas in place.
23 COMMISSIONER FOERSTER: Okay, okay. Is your new top of the
24 Sterling C consistent with Conservation Order 510?
25 MR. GENTGES: I'm going to defer that question to Mr.
23
Exhibit A
Page 7 of 124
1 Walsh. I -- I believe it may be, but I .......
2 COMMISSIONER FOERSTER: Yeah, I'll wait till.....
3 MR. GENTGES: .....Commissioner, I haven't looked at it in
4 detail. I did look over Conservation Order 510, but I didn't
5 have copies of the logs so I wasn't able to discretely
6 pick (ph).
7 COMMISSIONER FOERSTER: okay. I'll wait and let Mr. Walsh
8 answer that questions,.....
9 MR. GENTGES: Okay.
10 COMMISSIONER FOERSTER: .....but I do have one more for
11 you. When you were talking about the well that may or may not
12 need remediation, you said we'd go in and do a detailed
13 analysis, what did you mean by go in?
14 MR. GENTGES: Well, what I meant was we -- when we
15 originally filed our application we had not had the benefit of
16 going through a very detailed analysis of the original data on
17 the 13-A well.
18 COMMISSIONER FOERSTER: So you didn't go into the well.
19 MR. GENTGES: No, we did not.....
20 COMMISSIONER FOERSTER: Okay.
21 MR. GENTGES: .....go into well. No, ma'am.
22 COMMISSIONER FOERSTER: Okay, okay. That's all I had.
23 CHAIRMAN SEAMOUNT: For the record the construction will
24 not affect my dip netting at all because I take a different
25 route to the beach.
24
Exhibit A
Page 8 of 124
1 CHAIRMAN SEAMOUNT: Okay. Do you have any objections to
2 the designation of expert witness?
3 COMMISSIONER FOERSTER: None.
4 CHAIRMAN SEAMOUNT: Okay. Mr. Walsh, you're designated as
5 an expert witness in Geology and Geophysics.
6 MR. WALSH: Thank you. My first slide is slide number 11
7 and it is simply a generalized stratigraphic column of the
8 reservoirs in the Cook Inlet Basin. And what I would like to
9 point out here is the reservoir that we are concerning
10 ourselves with today is the Sterling reservoir.
11 Up at the very top of this stratigraphic column it is the
12 shallowest commercial producing gas reservoir in Cook Inlet.
13 And the Sterling reservoir actually grades upwards into the
14 Quaternary with no distinguishable unconformities above that
15 upper tertiary to Quaternary unit.
16 And if we can go to the next slide please. Oh, is that
17 me. Darn, I'm used to -- I'm used to asking people to do that.
18 Pardon me. Slide number -- I didn't plan that.
19 Slide number 12 is a diagram of a depositional system that
20 is similar to Cook Inlet. It is fluvial system. The entire
21 Sterling Unit is characterized by a fluvial system with
22 channels, point bars, crevasse splays and so forth. This is
23 typical of the gas reservoirs in the Cook Inlet basin as they
24 are primarily nonmarine systems. An amalgamation of channels
25 and crevasse splays. The Sterling itself is fairly well
E-]
Exhibit A
Page 9 of 124
1 connected internally, whereas others of the tertiary reservoirs
2 can be more isolated in terms of independent channels and
3 isolated gas zones.
4 The block diagram on the top is very difficult to see, but
5 this is really very similar to the Sterling formation with a
6 fluvial system provenance to the northeast as it is today up in
7 the upper Susitna area which is just an extension of Cook Inlet
8 and fluvial deposition down into that basin. And again as I
9 say, this is the system that was pervasive during the Sterling
10 deposition and has continued into the recent times.
11 This next diagram, diagram number 13, as I was able to
12 change my own slide there, is a type log. It's the Cannery
13 Loop Unit number 8 well. It is the'type log for the Sterling
14 reservoir, Sterling C Unit. And what I would like to point out
15 here are the limits of the pool and as Mr. Gentges reported in
16 his testimony we have slightly adjusted the top of the Sterling
17 A interval -- sorry, Sterling C interval to reflect a more
18 correlatable event that will make it more practical to pick
19 these markers as we are drilling these gas storage wells. And
20 the new top pick is also more representative of the top of the
21 gas zone that is associated with the Sterling C.
22 This is something that we, PRA, raised in the due
23 diligence effort on this project and Marathon was quick to
24 agree that this was a much better pick in terms of definition
25 of top of the Sterling interval.
29
Exhibit A
Page 10 of 124
1 The base of the Sterling interval is the Upper Beluga down
2 here at the base of this log and I don't anticipate anyone can
3 actually interpret these logs from this distance. They're
4 difficult enough when they're right in front of you, but on the
5 wall it's even more challenging, but the Sterling C is
6 characterized by massive sands, fairly blocky sands that you
7 can see represented by the net pay intervals on this curve.
8 And we have the Sterling Cla, Clb, C2a and C2b are the
9 primary reservoir intervals. You can also see the interbedded
10 coals. Typically on the logs in this field the thicker coals
11 are at the top -- at the top of parasequence set basically
12 defining the top of that Sterling C Unit and then grading into
13 claystones and silts which provide the cap rock for the gas
14 storage interval.
15 Now, the next slide, number 14, is the reference to the
16 well cross-section and this is the exhibit that I will offer as
17 additional evidence as a hard copy. Again, you can see the --
18 this is the.....
19 CHAIRMAN SEAMOUNT: Excuse me, Mr. Walsh, do you have any
20 objection, Commissioner Foerster, to entering this into the
21 record?
22 COMMISSIONER FOERSTER: None (ph).
23 CHAIRMAN SEAMOUNT: Okay. Cross-section -- well cross -
24 section AA prime hard copy is entered in the record. Did I do
25 that right, Mr. Assistant Attorney General?
30
Exhibit A
Page 11 of 124
1 MR. BALLANTINE: (Inaudible response).
2 CHAIRMAN SEAMOUNT: Okay, thank you.
3 MR. WALSH: Thank you. There is an insert map down in the
4 lower right hand portion of this cross-section and that
5 indicates the orientation of the cross-section from northeast
6 to southwest through the Cannery Loop Unit wells.
7 And what I really would like to point out here again as in
8 the type section the top of the gas storage interval is really
9 very easily interpreted as the base of the B5 coal which is now
10 the defined top of the interval with stringy coals throughout
11 and these coals are obviously source rocks for this gas
12 interval having matured and generated and migrated gas locally.
13 The cross- section is hung on the new top of the Sterling
14 C interval and there's an extension of this on the lower
15 section extending down to the Cannery Loop Unit number 10 well.
16 You can see that a couple of my logs don't extend up to
17 the top of the Sterling C and that's really because often the
18 casing shoe is set right as you get into the Sterling C and the
19 wells that are being drilled to the Beluga interval and so
20 there's another logging run above this and we didn't have those
21 in our data base, so -- but what I was trying to point out here
22 is just the continuity of that coal at the top of the Sterling
23 C and refer to this as definition of the top of the Sterling C
24 gas storage interval.
25 The next slide, slide number 15, is a generalized depth
31
Exhibit A
Page 12 of 124
1 structure map of the top of the Sterling C interval. And you
2 can see that the crest of the structure here at Cannery Loop
3 Unit is approximately 4,850 feet TVD subsea. These are 25 foot
4 contra intervals.
5 And what I wanted to point out on this is that this is a
6 very -- very non-complex anticline representing the top of the
7 Sterling C and you can see that there is an east west trending
8 Cannery Loop fault. We dont have the Kenai field proper to
9 the south on here on this map, but that is a fault that
10 separates those two fields. That is a buried fault. That is
11 not currently an active fault. And it is also outside the
12 bounds of the gas storage pool, so really not a factor, but it
13 is a fault that is in the area.
14 I will point out that Marathon has proprietary 3
15 dimensional seismic data over this field in the Kenai Unit and
16 have done a detailed mapping of this pool and this is really
17 what the structure looks like. It is a simple, elongated,
18 northeast to southwest anticline which is predominately
19 unfaulted and that is characteristic of many of the structures
20 that are associated with oil and gas in the Cook Inlet basin.
21 CHAIRMAN SEAMOUNT: Is this map the result of 3D seismic?
22 MR. WALSH: This map is a result of 3D seismic, yes. So
23 very important to point out that this is an uncomplex structure
24 with one fault to the south separating the two fields. It is
25 now a buried fault. Is not -- that fault does not extend to
32
Exhibit A
Page 13 of 124
1 the surface and is therefore no longer active. This is very
2 common in seismic interpretation anywhere in Alaska or other
3 locations where you see evidence of faulting at depth, but at
4 the shallowest point at which those -- the strata is no longer
5 affected by those faults, that's the age at which that fault
6 became dormant. This fault does not extend to the surface.
7 Again I'll say, that is common in Cook Inlet fields.
8 The other thing I'd like to point out is these are
9 preliminary horizontal well directional surveys and we have
10 reworked this since this map was generated. we are doing
11 detailed design engineering now for the project and these
12 transects will change, but you can see that the target of the
13 activity is the crest of the field and really gets nowhere near
14 this fault even if it were an active fault.
15 There is no fault in the crest of the structure according
16 to the 3D seismic data. None of these wells will intersect an
17 active fault or even an inactive fault in the current mapping.
18 The next figure is just a table of reservoir properties.
19 (Slide 16). And really what I wanted to point out here is that
20 this is a great gas reservoir. This would not be a terribly
21 good liquids reservoir or oil reservoir. The porosities in
22 this reservoirs range from about 12 and a half percent to about
23 20 percent. Permeabilities from about 20 millidarcies to 200
24 millidarcies and water saturations are on the order of 50 to 60
25 percent.
33
Exhibit A
Page 14 of 124
I Gas moves very readily within this reservoir within the
2 reservoir itself. There is good continuity between wells
3 within this field. However there is -- as Mr. Winslow will
4 point out in future testimony, there is very good containment
5 between reservoirs intervals in this field. So, again, it's a
6 very good gas field. It's an excellent choice in terms of the
7 overall size, the working volumes available for this project
8 and for the fact that it is -- the gas is dry gas. There is no
9 aquifer drive and it's a very high quality reservoir for gas
10 production and gas storage.
11 The next slide, slide number 17 addresses briefly the
12 issue of containment and well -- as I say, we'll be talking
13 about that further in testimony as we go forward. As we saw
14 from the structure map this is a four way dip closure. Again,
15 very characteristic, an anticlinal fold in the tertiary to
16 Quaternary that sets up the structural closure for this.
17 Top seal is provided by siltstones and shales at the base
18 of the Sterling B and top of the Sterling C. And as I said,
19 the Sterling C represents a parasequence set of fluvial
20 sediments that grades into coals and then into the lower
21 portion of the Sterling B interval which is characterized by
22 claystones, some siltstones and shale providing a every
23 effective top seal for this reservoir. And this reservoir has
24 obviously by the fact that there has been a thick (ph) gas
25 column there is capable of containing large volumes of gas at
34
Exhibit A
Page 16 of 124
1 least up to 26 and a half Bcf of gas.
2 Bottom seal -- sorry, the B5 coal is present across the
3 Cannery Loop structure and is about 10 to 20 feet thick. That
4 is going to be a very significant marker in terms of
5 correlation and choosing our casing point and our kick -out for
6 the production hole.
7 Bottom seal is the base of the Sterling formation and top
8 of the Upper Beluga formation. The Upper Beluga has produced
9 in the Cannery Loop Unit and Mr. Winslow will address that
10 issue. The upper part of the Upper Beluga is a silty-shaley
11 interval. Again, providing competent sealing between the
12 Beluga and Sterling pools. And you'll see that there is
13 significance evidence to show that there is a competent seal
14 between those two reservoirs.
15 Historic production and pressure data show these reservoir
16 seals to be very effective and the geology and the reservoir
17 engineering are integrated to show how effective these seals
18 are.
19 Finally the -- another slide on the Sterling C containment
20 and this is slide 18. There were a set of leak -off test
21 performed. As 2 mentioned the nine and five/eighths casing
22 shoe is typically set in the base of the Sterling B or in the
23 upper most part of the Sterling C in wells that are being
24 drilled to the Beluga interval. And leak -off tests are
25 performed, a standard practice on those casing runs so we do
35
Exhibit A
Page 78 of 124
1 have good evidence to show that the average fracture gradient
2 deduced from those formation integrity tests is about .684
3 gradient.
4 And the hydrostatic gradient which is also the initial
5 gradient for these gas reservoir is, of course, .44 (ph). So
6 the hydrostatic or initial pressure gradient which we do not
7 intend to exceed in operations here is about 73 percent of the
8 fracture gradient as determined from those formation integrity
9 tests. So very -- very solid information there showing a
10 containment at the top of the reservoir.
11 Slide number 19, Sterling C containment again. The
12 Sterling A and B appear to be water bearing in available
13 shallow well logs, CLU -1, 3 and 4 and there are limited wells
14 logs. Not all of the wells have logs in the intermediate
15 section. These wells have logs that go through that
16 intermediate section, (indiscernible) logs and density or sonic
17 logs that allow us to look at the reservoir characteristic of
18 the Sterling A and B.
19 And our petrophysicists, who is not here today, has done
20 detailed analysis of those well logs in the shallow section and
21 it is clear that the shallower Sterling units are water bearing
22 rather than gas bearing. That is also bourn out by the mud
23 logs that we can interpret in the shallow section. The base of
24 the Sterling B or that B5 coal, the thick coal at the base of
25 the Sterling B does seems to have generated some gas so there's
Z
Exhibit A
Page 17 of 124
I some local gas at the base of the Sterling B, but really
2 nothing in a reservoir section above that.
3 And that concludes my testimony on the geoscience aspects
4 of the project and I'd be happy to answer any questions.
5 CHAIRMAN SEAMOUNT: Commissioner Foerster, questions?
6 COMMISSIONER FOERSTER: The only question I have is the
7 one that I asked before, is this new depth consistent with
8 Conservation Order 510?
9 MR. WALSH: It is. I will say it's not inconsistent with
10 it. It -- the problem is that the Sterling is -- initially is
11 undefined C -- or undefined Sterling formation and it is broken
12 down in the Kenai gas field as Sterling 5.1, 5.2 through 6.
13 Different nomenclature here where we're using Sterling A, B and
14 C. So we did go back and research this and we are satisfied
15 and I believe Staff that we've discussed this with are
16 satisfied that this is consistent. We are using the top of the
17 Beluga as the base of the Sterling C and the B5 coal as the top
18 of the Sterling C.
19 COMMISSIONER FOERSTER: Okay, okay, thanks.
20 CHAIRMAN SEAMOUNT: It seems that when you go to
21 structures to the west in Cook Inlet they're bounded by thrust
22 faults that look like they're -- or reverse faults that look
23 almost like they're blind thrust faults. And looking at
24 thickness variations of the unit across it looks like these
25 faults are still active and that seems to be a common structure
37
Exhibit A
Page 18 of 124
1 Dallas with Garve (ph) and Associates for three years doing
2 reservoir simulation, all sorts of reservoir studies, decline
3 curve analysis, reserve auditing.
4 Spent the last nine years here in Alaska, six and a half
5 years with Forest Oil as their senior reservoir engineer in
6 charge of all the oil and gas fields with Forest Oil. The two
7 and a half years I've spent with Chevron and was in charge of
8 their gas fields on the east side Swanson River, Happy valley
9 and Ninilchik. And in addition was in charge of their three
10 gas storage reservoirs, two at Swanson and one at Pretty Creek.
11 CHAIRMAN SEAMOUNT: Do you have any questions,
12 Commissioner?
13 COMMISSIONER FOERSTER: I have none.
14 CHAIRMAN SEAMOUNT: I have none either. Do you have
15 objections to designating Mr. Winslow as an expert in reservoir
16 engineering?
17 COMMISSIONER FOERSTER: I have none.
18 CHAIRMAN SEAMOUNT: Okay. You are hereby designated an
19 expert in reservoir engineering. Please proceed.
20 MR. WINSLOW: Thank you, Commissioner. Okay. I'm going
21 to start on slide 20 and briefly go over reservoir integrity.
22 I'm going to look at some production and pressure history for
23 the Sterling C reservoir, briefly go over the gas storage
24 parameters which Mr. Gentges has already gone through. And
25 then spend a little bit of time looking over the Sterling and
40
Exhibit A
Page 19 of 124
1 Beluga pressure isolation.
2 Slide 21, Sterling C production and pressure. The initial
3 reservoir pressure of the Sterling C was 2,206 psia. This is a
4 datum of 4,966 feet TVD. A couple things to note, this gas
5 storage project will not exceed this pressure, so we have no
6 plans -- CINGSA has no plans to exceed this pressure. The
7 facilities are not designed to exceed this pressure so it is
8 firm target.
9 Initial reservoir pressure gradient .44 (ph) psi per foot.
10 There have been three leak-off tests done at the top of the
11 Sterling C. Fracture gradients, average fracture gradient .684
12 psi per foot.
13 Just some other production history notes, original gas in
14 place for the Sterling C reservoir 26.5 Bcf. First production
15 occurred in October, 2009. Production from the Sterling C has
16 only occurred from the Cannery Loop Unit number 6 well.
17 Currently there have only been two wells at Cannery Loop that
18 have even been perforated in the Sterling C. All the
19 production came from the number 6 well. And also the Cannery
20 Loop number 10 well in 2009 was perforated and a pressure was
21 obtained.
22 Maximum production rate from the Cannery Loop number 6
23 well is just under 15 million cubic feet per day. Note the
24 number 6 wells is a near vertical well through the Sterling C
25 interval.
41
Exhibit A
Page 20 of 124
1 Just to give you some perspective, I mean, we've talked
2 about the maximum planned rate of 150 million from five
3 horizontal wells, the reservoir is very good rock, produced 15
4 million, again, from a vertical well. Cum production to date
5 or through September is about 22.5 Bcf which leaves a remaining
6 gas in place of four Bcf.
7 Slide 22, gas storage parameters and, again, some of these
8 have been discussed previously. The initial phase on the gas
9 storage volume is planned for 18 Bcf which is seven Bcf of base
10 volume and 11 Bcf of working gas volume. Future expansion
11 could take the working volume up to 17 Bcf which would make the
12 total volume at that point 24 Bcf.
13 The initial number of development wells is five wells and
14 these -- again, these will be horizontal wells drilled from a
15 single pad or near horizontal.
16 Gas storage reservoir pressures and the initial phase,
17 again, the storage volume will fluctuate between seven Bcf and
18 18 Bcf. These equate to reservoir pressures of roughly 630 psi
19 up to 1,520 psi. Again, the initial reservoir pressure was
20 2,200 and six (ph) psi. If in future development CINGSA takes
21 the storage up to 24 Bcf, the average reservoir pressure will
22 be about just right around 2,000 psia.
23 Surface operating pressures are designed between 400 and
24 1,450 psig. These -- a simulation model was built over this
25 facility and was used in planning the initial wells,
42
Exhibit A
Page 21 of 124
1 development wells. From the simulation model these operating
2 pressures it was found that the field could be operated at
3 surface pressures ranging from 400 to 1,450 psig. In actuality
4 due to reservoir heterogeneities it will probably be a little
5 bit higher than that. In
the
application
we requested a
6 maximum injection pressure
of
2,200 psig.
7 Note that at this maximum pressure of 2,200 psig this
e corresponds to a bottom hole pressure gradient of .5 psi per
9 foot which is 73 percent of the fracture gradient which was
10 stated on the last slide at .684 psi per foot. And then once
11 again the initial phase is currently designed for a maximum
12 production and injection rate of 150 million cubic feet per
13 day.
14 Slide 23 I'm going to talk about four different good
15 indications that there has been pressure isolation of the
16 Sterling C reservoir. The most compelling evidence is the
17 material balance P/Z versus cum gas plot which I'll go over
18 shortly. Then I'll also look at production history, reservoir
19 pressures, initial pressures and current or 2009 reservoir
20 pressures which, again, indicate pressure isolation between the
21 reservoirs.
22 Slide 24, is a plot of bottom hole pressure divided by
23 natural gas compressibility factors so that's P/Z on the
24 vertical axis plotted against the cumulative produced gas on
25 the horizontal access. Looking at the data from, again,
43
Exhibit A
Page 22 of 124
1 initial production was in October, 2000 and the latest data
2 point was taken in October of 2009. A very good, straight line
3 fit between all data points indicating a depletion drive
4 reservoir and also showing no evidence at all of either aquifer
5 support or outside influence whether it be leaking off or gas
6 migrating in from another source. If you had either of these
7 cases you would deviate from a straight line on the P/Z plot.
8 Also note this is attachment 8 in the storage injection
9 order application, so this data was previously provided.
10 Slide 25 is a plot of production monthly, production data.
11 It's actually its average daily gas data plotted on a monthly
12 basis for both the Beluga and Sterling reservoirs in the
13 Cannery Loop Unit. The blue curve is the Beluga production and
14 the red curve is Sterling C production, again, from the Cannery
15 Loop Unit number 6 wellbore.
16 A couple of things to note, when the Sterling C reservoir
17 was first perforated in October, 2009 and brought on the blue
18 curve, which is the production from the Beluga, you don't see a
19 change in the slope from the decline on the Beluga projection.
20 So first indications would be that the Sterling did not
21 influence the Beluga production when it was first brought on.
22 Even more compelling in 2004 the Beluga curve goes from
23 production -- average daily production between two and three
24 million cubic feet a day up to as high as 28 million cubic feet
25 a day. This was when they brought on -- when Marathon
44
Exhibit A
Page 23 of 124
1 perforated the Upper Beluga in the Cannery Loop 7, 8 and 9
2 wells.
3 So they started producing the Upper Beluga, increased the
4 production from the Beluga tenfold and we don't see any change
5 in the slope on the Sterling production. And if there were
6 communication between the two reservoirs that big of an
7 increase in Beluga production I would expect to see an
8 influence on the Sterling production. I don't see any here.
9 It's not concrete, but it's good evidence that they are
10 isolated in communication.
11 Also, looking back a slide at that same date, 2004, so
12 back on slide 24 the plot -- the point right there in the
13 middle, June 8, 2004, again, falls right on the straight line
14 another good indication that there's pres- -- or isolation
15 between the reservoirs.
16 Slide 26 looks at the initial reservoir pressures for the
17 two reservoirs. I previously stated that the initial Sterling
18 reservoir pressure was 2,206 psia at a datum of 4,966. This is
19 a gradient .444 psi per foot.
20 The first bullet point the Beluga initial pressure was
21 2,310 psia at a datum of 5,175 TVD. Same initial reservoir
22 pressure gradient .446. That third place isn't significant.
23 A couple things to note, when the Sterling was first
24 produced in October of 2000 a total of 30 Bcf of gas had been
25 pulled from the Beluga reservoir in the Cannery Loop Unit. If
45
Exhibk A
Page 24 of 124
1 there was communication between the two reservoirs I would have
2 expected to see a much lower initial reservoir pressure
3 gradient in the Sterling and yet we still saw the same initial
4 gradient which is very common throughout this area of Cook
5 Inlet.
6 The other thing to note, the Kenai Unit 13-8 wellbore, KU
7 13-8 wellbore, was drilled and abandoned in its current state
8 in 1964. So it's been present throughout the entire history of
9 both the Beluga and the Sterling production in its current
10 state.
11 Slide 27 looks at some 2009 pressures in both the Sterling
12 and Beluga reservoirs. Sterling C reservoir first of all in
13 October, on October 22nd, a bottom hole pressure was obtained
14 from the Cannery Loop Unit number 6 well. The well was
15 actually shut-in for an extended period and a reservoir
16 pressure of 424 psi was obtained.
17 During that same time period the Cannery Loop number 10
18 well was perforated. Cannery Loop Unit 10 was originally a
19 Beluga producers and produced for a short time in the Upper
20 Beluga and then was plugged off and the Sterling C shot in
21 October of 2009 very similar pressure, 465 psi, 41 pounds
22 different.
23 The note that the Cannery Loop number 10 well is on the
24 far south end of the field. The number 6 well is more on the
25 northern, northeastern crest part of the field. So very good
46
Exhibit A
Page 25 of 124
1 communication, horizontal communication within the Sterling C
2 reservoir which is excellent for the storage project.
3 As reported to the State, to the AOGCC, the reservoir
4 properties at the end of 2009 for the Upper Beluga or for the
5 Beluga Pool were reported to be 1,371 psia, significantly
6 higher than the Sterling C pressure, so the Beluga is still at
7 a higher pressure than the Sterling C.
8 If, again, an indication if the reservoirs were in
9 communication they would have a tendency to equilibrate. I
10 have not seen any indication that this has happened. I think
11 that's all I wanted to say about that.
12 That concludes the talk on reservoir isolation. I'd be
13 happy to answer any questions that either of you may have.
14 CHAIRMAN SEAMOUNT: Commissioner Foerster, do you have any
15 questions?
16 COMMISSIONER FOERSTER: I have a couple I think you might
17 -- you may have not mentioned this or maybe I heard it wrong,
18 but on slide 21 and again on slide 25, the slide says the year
19 2000 and the words I heard coming out of your mouth for the
20 year 2009 for first production?
21 MR. WINSLOW: I'm sorry, first production is October,
22 2000.
23 COMMISSIONER FOERSTER: Okay, all right.
24 MR. WINSLOW: I may have misspoken.
25 COMMISSIONER FOERSTER: Or I may have misheard. Is two
47
Exhibit A
Page 26 of 124
1 and seven/eighths inch tubing going to be adequate for 30
2 million cubic feet per day per well in 150 million?
3 MR. WINSLOW: This wells as will be discussed in the next
4 section will be completed with seven inch tubing, so.....
5 COMMISSIONER FOERSTER: Okay. So there's not going to be
6 -- on the earlier slide it says.....
7 MR. WINSLOW: And they're designed -- I mean, they're
8 designed to average 30 million. They actually can flow at
9 rates -- I mean, simulated rates were up to 50 million a day,
10 so.....
11 COMMISSIONER FOERSTER: So one last question, when did the
12 Beluga start producing from Cannery Loop?
13 MR. WINSLOW: 1988.
14 COMMISSIONER FOERSTER: 1988. And when did -- is that the
15 first production from the Cannery Loop?
16 MR. WINSLOW: I'm not sure, there may have been Tyonek
17 production before that. There's four pools in.Cannery Loop,
18 the Tyonek, the Tyonek D, the Beluga and then the undefined
19 Sterling Pool so I'm not sure, but I know the Beluga started in
20 1988.
21 COMMISSIONER FOERSTER: That's all I had.
22 CHAIRMAN SEAMOUNT: Am I correct to assume that the Upper
23 Beluga contains a number of thinner sands? It's not just one
24 sand, correct, or is it?
25 MR. WINSLOW: No, I think that's correct. Tom, if you
48
Exhibit A
Page 27 of 124
1 have que- -- answer.
2 MR. WALSH: Can I answer that question?
3 CHAIRMAN SEAMOUNT: Yes, you may, Mr. Walsh.
4 MR. WALSH: The Upper Beluga is typically a couple of 15
5 foot sand stringers.
6 CHAIRMAN SEAMOUNT: Okay. And have they ever been tested
7 or produced separately or are they always perforated together?
8 MR. WINSLOW: There has been commingled production between
9 the lower part of the Beluga and the upper. When the seven --
10 when the Cannery Loop 7, 8 and 9 wells were drilled they were
11 initially completed just in the Upper Beluga.
12 CHAIRMAN SEAMOUNT: Do you know if these sands form
13 separate reservoirs or are they are in communication?
14 MR. WINSLOW: I don't have detailed pressure data, that's
15 proprietary to Marathon. What's been reported to the State in
16 the Annual Reservoir Properties Report that's required by the
17 operators to fill out, shows that the average Beluga -- the
18 reported average Beluga pressure in 2004 was listed at 996 psi.
19 In 2005 the average reservoir pressure was listed at 1,960 psi.
20 So we increased just under 1,000 psi which tells me -- and if
21 you look at the production it would indicate it as well.
22 2004 was the first time Marathon perforated and produced
23 the Upper Beluga. That data would suggest to me that the Lower
24 Beluga and Upper Beluga are not in communication, but they are
25 separate because they see a big jump not only in production,
49
Exhibit A
Page 28 of 124
I but the pressure went up by the end of the year, was still up
2 1,000 psi.
3 CHAIRMAN SEAMOUNT: Do you know if the Beluga if it
4 contains gas in the 13-8 well or contained gas at one time?
5 MR. WALSH: We have looked at that, Commissioner.....
6 COMMISSIONER FOERSTER: Name yourself.
7 MR. WALSH: Oh, sorry, this is Tom Walsh for the record.
8 We have looked at that. The logs in 13-8 are not a full suite
9 of logs as they are in many of the other production wells, so
10 it's not definitive, but the Beluga is quite ratty looking in
11 the 13-8 location and it's not clear that it's gas bearing.
12 CHAIRMAN SEAMOUNT: How bout the Sterling, is there any
13 gas in any part of the Sterling in the 13-8?
14 MR. WALSH: In the 13.8. Again, it's difficult to make a
15 credible comment on that. The Sterling sands are poor quality
16 in 13-8 location as well. And it's somewhat equivocal as to
17 whether there's actually any gas in 13-8.
18 CHAIRMAN SEAMOUNT: Is there a correlation between
19 structure and reservoir quality then or there's not enough
20 information to tell?
21 MR. WALSH: Well, it's -- there is -- I believe there is
22 gas in other well locations at greater depths than in the 13-8
23 location if that's what you're asking.
24 CHAIRMAN SEAMOUNT: That's close enough.
25 MR. WALSH: Okay.
50
Exhibit A
Page 29 of 124
1 directional wells we might need the ability to shut the well
2 off deeper than that, but at present we've set the minimum
3 depth at 150 feet. And it will be a seven inch wireline
4 retrievable to give us full bore capability.
5 The casing design, again, is very typical in the Cannery
6 Loop field. The nine and five/eights 40 pound, seven inch 26
7 pound. we've done a bi-axel (ph) look at the casing design and
8 it appears to fit. We may change it, although the numbers are
9 very conservative as they stand depending on the directional
10 design.
11 COMMISSIONER FOERSTER: Are we on.....
12 MR. PERRY: On slide number 30, just wave at me,
13 Commissioner Foerster.
14 But -- and we will be using a lot of directional work in
15 the 12 and a quarter inch hole and using a three degree per 100
16 dog leg so until we have that basic directional design we won't
17 finish the full casing design. Of course this will all be
18 supplied in our permit to drill application.
19 The next slide which is slide 31, I think one of the
20 biggest safety features we have is that there's been several
21 recent wells drilled by Marathon in the field and I'm talking
22 about from 2004, that allows me to do a bunch of cross
23 referencing in what they've done and they've been very
24 successful in that drilling so I think being consistent with
25 the proven Cannery Loop drilling is one of our biggest assets.
56
Exhibit A
Page 30 of 124
1 We have 13 offset wells. The drilling fluids that have
2 been used are going to be similar. We're expecting to use a PA
3 type flow pro (ph) system through system in both the 12 and a
4 quarter and in the production zones to prevent formation
5 damage.
6 Our expectation is the field is normally pressured until
7 we get to the Sterling C. Of course we'll be prepared in case
8 it isn't. we'll be drilling with full mud weight all the way
9 down. We did not be drilling with any exotic foam system or
10 underbalanced drilling system. We'll be just using an old mud
11 weight (ph) system for that. We expect no gas to the Sterling
12 B5 coal.
13 Casing design we talked about already, again, very
14 similar. The only difference is the most recent wells drilled
15 the Cannery Loop field they've been going with a slim hole.
16 Because of the high flow rates needed in our wells we're going
17 with the seven inch completion. The well head I've already
18 stated is similar.
19 One of the other aspects in a field like this that is
20 really critical to us is we have two operators drilling in a
21 similar field. We have Marathon on one side and us drilling
22 through the other so it's really critical that we get our plans
23 together and that we know where their wells are and they know
24 where our wells are.
25 So we're going to work very closely with them on that and
57
Exhibit A
Page 31 of 124
1 we've already started some discussions. And we also plan on
2 using the same close approach criteria that they're currently
3 using so that our interference calculations will be on the same
4 basis.
5 We've anticipated, as I've said, the future AOGCC
6 regulations with installing a subsurface safety valve. And a
7 note, again, we are submitting all casing strings back to
8 surface which would not normally be required in an oil/gas
9 normal producing situation.
10 Moving on to slide number 32. More operationally, discuss
11 just a bit on how we're going to monitor these wells. There
12 will be a Realtime SCADA system so we'll have telemetry back
13 from the wells themselves back to the control room. We'll be
14 measuring daily pressure and rate. There's a flow meter on
15 each of the well flow lines. And, of course, monthly
16 production injection volumes as required by the State.
17 Of uniqueness in a gas storage production reservoir like
18 we're doing here, we have the ability at the end of the cycles,
19 after the end of the injection cycle and at the end of the
20 producing cycle to have a good shut-in pressures. This will
21 help us verify pressures and volumes and the integrity of our
22 reservoir and how we're doing with the gas.
23 Slide number 33, KU abandonment schematic. What I'd like
24 to discuss on the schematic is the abandonment as it was done
25 in 1964. It was drilled in December of that year. They
AA
Exhibit A
Page 32 of 124
1 abandoned it as shown in this schematic and it's been sitting
2 dormant for over 46 years.
3 It has a cement plug very similar to what would be
4 required under current regulations. The eight and five/eighths
5 was cemented, not all the way back to surface. They calculated
6 at 190 foot measured depth top of cement. However, there's a
7 note in the well files that indicate it's at 350 feet. I don't
8 know where they came with that conclusion. There's no data to
9 back that up.
10 They did do a top job as shown in this so they have
11 cemented the 13 and three/eighths by the eight and five/eighths
12 annulus from the top. They then installed a surface plug in
13 the -- at the very top very of the well head and it was capped
14 with very little description on how that cap was done.
15 The -- one other thing I'd like to note is that they left
16 10.3 pound per gallon lignosul- -- chrome lignosulphonate mud
17 in the well. And this is a general water based mud that was
18 used at the time. It was a freshwater system. obviously as
19 cheap as they could get and extremely damaging with the
20 freshwater. They wanted to get as much gel (ph) use out as --
21 as they could and very typical of that time.
22 All right. Moving on to slide number 34, we did an
23 analysis of KU 13-8. I won't go into the detail that Paul
24 Winslow did, but again, it was abandoned 46 years ago. There's
25 been no cross flow in the past 46 years.
no;
Exhibit A
Page 33 of 124
1 There's no measurable depletion - virgin pressure in the
2 Sterling C and that's after significant Beluga production. No
3 visible change in the P/Z due to Beluga production. No visible
4 change in the Beluga production due to the Sterling C
5 production. And it is sufficiently isolated from the shoe to
6 surface.
7 Quickly moving on to slide number 35, Mechanical
8 Integrity. For the want of being repetitive we have not seen
9 any cross flow as stated previously from the Sterling C
10 reservoir. We did an evaluation on the mechanical integrity of
11 the wells penetrating the Sterling C formation in the Cannery
12 Loop field. In that analysis we found that there was cement
13 coverage across all but the 13-8 (ph) and a small gap in the
14 Cannery Loop wells Cannery Loop Unit 12 wells.
15 We determined that remedial work is needed on Cannery Loop
16 dash 6, Cannery Loop 10 and Cannery Loop 12 and discussion is
17 underway with Marathon on a program for those which I'll go
18 into detail in just a second on what's required.
19 The next slide, Cannery Loop Wells, number 36, lists the
20 wells in the field. For some reason we have Cannery Loop
21 number 2 which is listed in the field, but is actually not in
22 the Cannery Loop Unit. It was drilled several miles away.
23 Maybe they expected the reservoir to be much, much larger than
24 it was.
25 The next slide, (Slide 37), the remediation we're
60
Exhibit A
Page 34 of 124
ALASKA OIL AND GAS CONSERVATION COMMISSION
Before Commissioners: Daniel T. Seamount,
John K. Norman
Cathy Foerster
In the Matter of COOK INLET NATURAL
GAS STORAGE ALASKA, LLC (CINGSA), has
applied for an order authorizing natural
gas storage in the Cannery Loop Unit,
Kenai Peninsula Borough in conformance
with 20 AAC 25.252 and 20 AAC 25.412
In the Matter of COOK INLET NATURAL )
GAS STORAGE ALASKA, LLC, (CINGSA), has )
applied for an order exempting )
freshwater aquifers in the Cannery Loop )
Unit, Kenai Peninsula Borough in )
conformance with 20 AAC 25.440 )
SIO -10-05
AEO-10-02
ALASKA OIL and GAS CONSERVATION COMMISSION
Anchorage, Alaska
October 20th, 2010
9:30 o'clock a.m.
VOLUME II
PUBLIC HEARING
BEFORE: Daniel T. Seamount, Chairman
Cathy Foerster, Commissioner
U-10-051
RECEIVED
By the Regulatory Commission of Alaska on Nov 05, 2010
Chairman
Exhibit A
Page 35 of 124
1 CHAIRMAN SEAMOUNT: Are they the questions that you
2 submitted yesterday?
3 MR. GODDARD: Yes, um -hum.
4 CHAIRMAN SEAMOUNT: okay. Yeah, you can do that, but
5 they're already in the record so, I mean,.....
6 MR. GODDARD: Oh, okay.
7 CHAIRMAN SEAMOUNT: .....it's not entirely necessary go
8 through them, but you're more then welcome to.
9 MR. GODDARD: Well, I'll take advantage of the -- I'll try
10 and make it quick.
11 CHAIRMAN SEAMOUNT: Okay.
12 MR. GODDARD: Yeah.
13 COMMISSIONER FOERSTER: Did you enter them into the record
14 yet?
15 CHAIRMAN SEAMOUNT: I thought I did.
16 COMMISSIONER FOERSTER: All right.
17 CHAIRMAN SEAMOUNT: We'll make sure all these documents
18 are in the record at the end of this show.
19 MR. GODDARD: Okay. First question and this is -- these
20 aren't numbered slides, but they are numbered questions and
21 they correspond with the pages plus one 'cause the first
22 page.....
23 COMMISSIONER FOERSTER: (Simultaneous speech).....
24 MR. GODDARD: .....was the title.
25 COMMISSIONER FOERSTER: That will work.
196
Exhibit A
Page 36 of 124
1 MR. GODDARD: Upon what factual basis did CINGSA state to
2 DNR in Richard Gentges September 10th letter that there were no
3 earthquake faults within 40 miles of the Cannery Loop site?
4 How do they account for the fact that Middle Shoals and Granite
5 Point faults, confirmed active faults, are within 15 miles of
6 the Cannery Loop site? That's a combined 15 miles. Granite
7 Point is a little bit further.
8 Number two, upon what factual basis did CINGSA assert to
9 DNR in the same September 10th letter, that the depleted ga
10 reservoir in the Cannery Loop unit is not located across any
11 known fault line? Mr. Gentges' letter referenced the 2000
12 study by Dr. Haeussler which clearly indicates an approximately
13 20 mile fault line -- or it's actually what we're now calling a
14 fault cord anticline that cuts right through the Cannery Loop
15 reservoir. How does explain this misleading information that
16 was provided to DNR?
17 And then as a corollary to this, yesterday we did see a
18 further disclosure which showed an east/west running fault line
19 which is probably more of a formal fault as opposed to a fault
20 cored and that's -- actually I looked at the drawing. It's
21 less than a mile from the southern boundary of the gas zone as
22 they've defined it on their surface projection, so we'd like to
23 know how they explained this misleading information that was
24 provided to DNR.
25 Three, once CINGSA accepts the apparent fact that a local
197
Exhibit A
Page 37 of 124
I fault line cuts through the Cannery Loops Sterling C reservoir,
2 how will CINGSA modify the project engineering and design
3 criteria? One response that I would like to see would be to
4 reduce the injection pressure. If the injection pressure is
5 above hydrostatic -- they're saying they want to do injection
6 pressure that's equals to .5 psi and we believe that will
7 contribute to gas migration through whatever faulting structure
8 exists inside the reservoir.
9 Four, CINGSA shows a very smooth, dome structure in the
10 surface projection maps. How has CINGSA developed this
11 information for the reservoir zone that is beyond the confines
12 of the configuration of wellbores that penetrate the reservoir
13 structure?
14 Now, this question was written and put into this before we
15 have the benefit of their presentation yesterday which said
16 that it is actually a very smooth, dome structure and that
17 they've gotten this information from Marathon, but it hasn't
18 been reviewed directly by the geologist that reported that he
19 had this information from Marathon and it hasn't been provided
20 to anybody else to review. So based on this I'd like a little
21 better explanation if we can of how they determined this
22 configuration since it's not indicated by the well log data
23 that they've also provided.
24 Number five, the smooth aspect to the dome structure
25 depicted in the surface projection map seems to be inconsistent
198
Exhibit A
Page 38 of 124
I with both the north/south and east/west cross sections. How
2 does CINGSA explain this apparent inconsistency in their data?
3 And I might also say that to corollary it also is inconsistent
4 with the drawing that they provided showing the five wells and
5 the pay zones that those wells would intersect that shows a
6 wavy structure rather than a smooth, domed shaped anticline.
7 Six, how does CINGSA explain the apparent coincidence that
8 the discovery pressure gradient, .044 psi per foot, is the same
9 as hydrostatic pressure gradient essentially, 0.44 without
10 considering the likely corollary that the reservoir fault
11 structure leaked gas into higher structures under the gas
12 pressure reached stasis or equalized with hydrostatic pressure?
13 And, of course, what this would indicate then is that when
14 they use an injection pressure of 0.5 psi they could force gas
15 migration up whatever fault structure exists inside the
16 reservoir.
17 Seven, can CINGSA provide more information regarding the
18 cap that holds the reservoir gas in place? There is virtually.
19 no information provided in the project proposal documents or
20 the SIO Application.
21 And, once again, this was written before we had the
22 benefit of this wall chart here which is the first time we've
23 actually been able to see the thickness and variability in the
24 coal cap. And it does suggest to those that understand these
25 sorts of well cross sections, that the thickening and thinning
im,
Exhibit A
Page 39 of 124
1 in the cap structure would suggest faulting or cracking such
2 that gas could escape if pressures exceed hydrostatic
3 pressures.
4 There's virtually no information other than this wall
5 chart in the project proposal documents or the SIO application.
6 Eight, how has CINGSA determined the horizontal dimensions
7 or lateral containment dimensions as depicted'in the storage
8 zone maps and diagrams? There is no well data outside the
9 confines of the configuration of wellbores that penetrate the
10 reservoir.
11 Once again, the answer to this may be the information that
12 they've received from Marathon and as a corollary to this
13 question if that is the source it would be appreciated if they
14 could make as much of that public and explain it better in a
15 written format.
16 Nine, without knowing the actual horizontal dimensions of
17 the reservoir, how can CINGSA guaranty that gas will not
18 migrated horizontally out of the reservoir zone?
19 Ten, without providing the geological structure of the
20 cap, including the localized pattern of faults that cut through
21 the reservoir, how can CINGSA guaranty that gas will not
22 migrate to areas above the reservoir structure, using the
23 available fault lines as migration conduits?
24 Eleven, what is the geological structure above the
25 reservoir cap? CINGSA has not provided any information about
200
Exhibit A
Page 40 of 124
I the various structures above the reservoir. All of the well
2 logs that I've seen, seem to cut off at the Sterling C and
3 there's been no presentations about structures above the
4 Sterling C or above the Sterling B coal cap.
5 Twelve, how does CINGSA account for the presence of gas
6 above the Sterling C reservoir, Sterling B above) except by the
7 obvious conclusion that gas leaked into the Sterling B from the
6 Sterling C and lower formations in geologic time?
9 Now, Commissioner Seamount has suggested that it could
10 also be coal that's above the Sterling C that's also slowly
11 gasifying itself so that, that may be the case. If that is the
12 case, is that adequate for all of the gas or is it a
13 combination of gas moving up through the various geologic
14 structure to the various reservoirs?
15 Thirteen, and this really comes into play if in the future
16 CINGSA expands the reservoir total volume to 24 billion cubic
17 feet. The gas contained in the Cannery Loop Sterling C
18 reservoir has been reduced from 26 billion cubit feet to 4
19 billion cubic feet and the pressure has been reduced from 2,200
20 psi discovery pressure to about 400 psi current pressure. This
21 will tend to reduce the absorption capacity or available pore
22 space in any depleted reservoir due to pore space granular
23 collapse or subsidence.
24 Has CINGSA calculated the extent to which the absorption
25 capacity of the reservoir has been reduced? Any decrease in
201
Exhibit A
Page 41 of 124
I Question number three, once CINGSA accepts the apparent
2 fact that a local fault cuts through the Cannery Loop
3 Reservoir, how will CINGSA modify the project engineering and
4 design criteria? CINGSA does not accept there's an active
5 fault or any fault line that cuts through the Cannery Loop
6 reservoir. There's no evidence from the drilling data
7 whatsoever or the geologic analysis that a fault exists through
8 the reservoir.
9 Mr. Walsh, I don't know if you want to comment further on
10 that.
11 MR. WALSH: I would just -- this is Mr. Walsh for the
12 record. I would also submit that the maps that have been
13 submitted by the operator of the Cannery Loop unit have all
14 shown simple anticlinal structure. Those maps were generated
15 using modern 3D seismic data and there are several maps
16 submitted to the State of Alaska, none of which show any faults
17 through the Sterling reservoir at Cannery Loop unit.
18 Yeah, and for the record, Conservation Order 231 contains
19 geologic data and structure maps for the Cannery Loop unit so
20 that is one place to find that in the public record.
21 CHAIRMAN SEAMOUNT: Which order was that?
22 MR. WALSH: 231.
23 CHAIRMAN SEAMOUNT: 231.
24 MR. WALSH: Um -hum. (Affirmative)
25 This is Mr. Walsh for the record. Question number four,
0111!
Exhibit A
Page 42 of 124
1 CINGSA shows a very smooth, dome structure in the surface
2 projection maps. How has CINGSA developed this information for
3 the reservoir zone that is beyond the confines of the
4 configuration of wellbores that penetrate the reservoir
5 structure?
6 And, again, the publicly available maps that are available
7 from AOGCC and DNR which have been submitted by the operator do
8 show the structural configuration of the reservoir. And,
9 again, I would submit that those maps are backed by high
10 quality 3D seismic data that is proprietary data owned by the
11 operator.
12 Again, Mr. Walsh for the record. Question number five,
13 the smooth aspect to the dome structure depicted in the surface
14 projection map seems to be inconsistent with the north/south
15 and east/west cross sections. How does CINGSA explain this
16 apparent inconsistency in their data.
17 We don't see any inconsistency there. The well cross
18 sections that have been generated from the well data tie the
19 tops that have been picked. The only inconsistency might be
20 associated with the fact that the top of the Sterling C
21 structure map has not been updated with the recently revised
22 pics that were agreed between CINGSA and Marathon to slightly
23 adjust the top of the reservoir container which has been
24 addressed in testimony yesterday. That's the only
25 inconsistency at all that would be shown between the map and
rOM
Exhibit A
Page 43 of 124
I the cross sections.
2 I will point out that this cross section that's hanging on
3 the wall is not a structural cross section. It is hung on the
4 top of the Sterling C1 so that may -- may be causing some
5 confusion, I don't know, but if you map these out the well
6 penetrations with the depths, there is absolutely no
7 inconsistency with the structure map.
g Oh, and again, the structure away from the well data is
9 projected using seismic data.
10 Yes, one more point for the record, the other issue that
11 was raised in testimony by Mr. Goddard and his expert was the
12 fact that there was faulting demonstrated in the well data.
13 This -- the environment of deposition as I testified yesterday
14 is a fluvial deltaic system, primarily fluvial dominated river
15 channels and it's difficult to correlate in that environment,
16 but there is absolutely no evidence in the well records of any
17 faulting have been intersecting by any of the wells in this
18 field. So I just want to make that clear that there is no
19 evidence of repeat section or missing section in those
20 wellbores, that could be possibly missed because of the
21 complexity of the environment, but there certainly is nothing
22 evident in the well records that have been interpreted so far.
23 MR. WINSLOW: Paul Winslow for the record. Question six,
24 how does CINGSA explain the apparent coincidence that the
25 discovery pressure gradient .44 psi per foot is the same as the
210
Exhibit A
Page 44 of 124
1 hydrostatic pressure gradient without considering the likely
2 corollary that the reservoir fault structure leaked gas into
3 higher structures until the gas pressure reached stasis or
4 equalized with hydrostatic pressure?
5 The firs thing I'd like to say is my understanding of all
6 of the, what I'm calling shallow gas in Cook Inlet, gas from
7 Tyonek, Beluga and Sterling reservoir is all sourced from
8 coals. It's all biogenetic gas. I don't see it ever -- and
9 it's source from the coals and migrates directly into the
10 surrounding reservoir rock sandstone. If there's a seal it
11 stays in that rock. If there's not it migrates upwards until
12 it finds a seal and it will equal at the pressure of
13 hydrostatic, that's very typical in the Cook Inlet so I would
14 expect a normal pressure as we have seen in both these
15 reservoirs.
16 There is no evidence of leaking. If this were leak- -- if
17 the reservoir were leaking certainly over the history -- the
18 production history of the field you would see it on the
19 material balance plot. There would be an indication of gas
20 leaking off. There's no indications that I've looked at
21 whatsoever of any leaking whatsoever. Anything else you want
22 to say or.....
23 MR. WALSH: This is Mr. Walsh for the record. Question
24 number seven, can CINGSA provide more information regarding the
25 cap that holds the reservoir gas in place? There is virtually
211
Exhibit A
Page 45 of 124
1 no information provided in the project proposal documents or
2 the SIO application?
3 I'd be happy to address that. I did address that in
4 testimony yesterday indicating that the clay stones, shales and
5 silt stones at the top of the Sterling C interval and at the
6 base of the Sterling B interval provide competent cap rock for
7 this reservoir. That is based on log analysis of the logs
8 available through the Cannery Loop unit penetrations of that
9 interval. And is also supported by the formation integrity
10 tests which I showed yesterday in my testimony indicating the
11 .684 gradient for -- fractured gradient for those particular
12 rocks.
13 I will also say that probably the best evidence for this
14 cap rock being a competent cap rock is the fact that it has
15 reservoired and contained 26 and a half billion cubic feet of
16 gas for millions of years. That's a pretty strong statement
17 for the capability of that cap rock to hold gas.
18 CHAIRMAN SEAMOUNT: How many years did you say?
19 MR. WALSH: Billions.
20 (Off record comments)
21 MR. WALSH: Question number eight. This is gain Mr.
22 Walsh. How has CINGSA determined the horizontal dimensions or
23 lateral containment dimensions as depicted in the storage zone
24 maps and diagrams? There is no well data outside the confines
25 of the configuration of wellbores that penetrate the reservoir.
212
Exhibit A
Page 46 of 124
I The reservoir has been depicted as an anticline, simple
2 fold structure with four way dip closure. And, again, this
3 question has actually been answered before, but the definition
4 of that -- of the pool is defined by the pool maps as submitted
5 to the AOGCC and DNR and again those are supported by quality
6 -- high quality 3D seismic data.
7 MR. WINSLOW: This is Paul Winslow addressing question
8 number nine. Without knowing the actual horizontal dimensions
9 of the reservoir, how can CINGSA guaranty that gas will not
10 migrate horizontally out of the reservoir zone?
11 As stated when I was answering question six, this gas
12 being sourced from coals, migrates out of the coals into the
13 sandstone. If there's a trap it stays there and will fill up
14 that container until a spill point is reached and then it will
15 leak out on the spill point. This reservoir has demonstrated
16 that it contains 26 and a half Bcf of gas. That's a volume,
17 it's above the spill point. There's no evidence that it's
18 leaked at all. The seismic and geologic interpretation of the
19 structure does not show a spill point.
20 And again, the reservoir has held this volume of gas so
21 re -pressurizing to a pressure less than original discovery
22 pressure if we -- even in the second phrase if CINGSA takes it
23 up to 24 Bcf this reservoir has already demonstrated the
24 ability to contain that volume. I see no reason why it
25 wouldn't re -pressurize in up to 24 Bcf. It will be at a lower
213
Exhibit A
Page 47 of 124
1 pressure than discovery pressure.
2 MR. WALSH: This is Mr. Walsh addressing question number
3 1o. Without providing the geological structure of the cap,
4 including the localized pattern of faults that cut through the
5 reservoir, how can CINGSA guaranty that gas will not migrate to
6 areas above the reservoir structure, using the available fault
7 lines as migration conduits?
g That's a good question, but, you know, faults are known to
9 act as conduits. As we have stated on several occasions, we
10 feel that this is an unfaulted, simple anticline. And we
11 believe that the structure is as depicted in the maps and that
12 there are no faults that penetrate upward from the Sterling and
13 so there would be no migration pathway.
14 But the other issue there again, is if there were faults
15 that do penetrate the Sterling into the shallower section, the
16 gas would have migrated out already and it hasn't. So, I
17 think, history is the strongest evidence that faults are not
18 acting as a conduit into shallow sections.
19 Mr. Walsh, addressing question number 11. What is the
20 geological structure above the reservoir cap? CINGSA has not
21 provided any information about the various structures above the
22 reservoir.
23 We -- this injection order is -- application is addressing
24 injection into the Sterling C so I'm not sure what the need for
25 structure above the reservoir cap is, but be happy to address
214
Exhibit A
Page 48 of 124
I that.
2 Our feeling on that is that the structures above the
3 Sterling C pool in the Cannery Loop unit will be conformable.
4 Typically sand, shales and coals bearing water with a
5 diminished amplitude of the structural folds going shallower in
6 the section and we -- we do know from the geologic literature
7 that the Sterling through the Quaternary is fairly -- is fairly
8 conformable. It's very difficult to distinguish the top of the
9 Sterling, but we do feel it would be conformable structures.
10 It would be an anticline that the amplitude would be
11 diminishing upward.
12 And, again, the sands and any conglomerates or any porus
13 medium in that section has been shown from well logs to be
14 water bearing unless they're adjacent to coal stringers which
15 might have provided some local gas.
16 And this is Mr. Walsh, I will also address question number
17 12. How does CINGSA account for the presence of gas above the
18 Sterling C reservoir, Sterling B and above, except by the
19 obvious conclusion that gas leaked into the Sterling B from the
20 Sterling C and lower formations in geologic time? How would
21 CINGSA account for this leaking of gas except through the fault
22 line that cuts through the reservoir?
23 We don't believe that there has been any leakage of gas.
24 We feel that the Sterling C is a very competent reservoir with
25 a competent capping mechanism. The well log and mud log
215
Exhibit A
Page 49 of 124
1 information in the shallow section indicates little or no gas
2 in the Sterling A and B and what little trace gas we have seen
3 in those section after a thorough petrophysical analysis is
4 believed to have been locally sourced from coal stringers in
5 those sections.
6 MR. WINSLOW: This is Paul Winslow addressing question 13
7 and to save time I'm not going to read it. It's a long one.
8 The question basically addresses that having decreased the
9 reservoir pressure from 2,200 psi down to 400, the question is
10 has the pour space diminished due to absorption capacity and
11 have we taken that into account when we re -pressure putting the
12 volume of gas that we're talking about for this project back
13 in, has that been accounted for in the pressure.
14 First thing, having dealt with three gas storage fields
15 here in the Cook Inlet I have not seen any evidence of this.
16 They've been very consistent. When you plot the production and
17 injection cycles on material balance they move right up and
18 down the line. I have not seen where it looked like the volume
19 actually decreased so putting the same volume back in did not
20 result in a higher pressure. I understand your question.
21 The second thing would be if you're truly seeing a
22 shrinking volume as you were depleting the reservoir, again,
23 your material balance you would probably se- -- if it's any
24 substantial volume decrease, you would see it on your material
25 balance and all the data for the Sterling C shows a very
216
Exhibit A
Page 50 of 124
1 certified professional involved in that team.
2 I personally believe that the work that has been done, I
3 would certainly stand behind it and think that it's quality
4 work. I would hope that has been reflected in the injection
5 order application and the aquifer exemption application.
6 And I will also say that all of the effort that has been,
7 all of the work that has been done on this has been supported
8 by -- by our team by publicly available data, data that is
9 available to Mr. Goddard and his expert. There's a wealth of
10 information that has gone into this and it's available in the
11 public record.
12 MR. GENTGES: This is Mr. Gentges responding to question
13 16. 20 AAC 25.252(h)(1) and (2) clearly requires that the
14 storage injection order applicant to properly repair, plug and
15 modify wells that require remediation before the Commission can
16 approve a storage injection order. When does CINGSA intend to
17 provide this prerequisite information to the Commission?
18 I think both in our original application to the Commission
19 and in subsequent exhibits that we filed on Friday with the
20 Commission we were very clear in identify the wells that we
21 believe require remediation to isolate the Sterling C and
22 address any potential for gas migration, so we believe we've
23 satisfied this request.
24 The application itself provided detail on every well that
25 penetrates the Sterling today. We included a complete summary
219
Exhibit A
Page 61 of 124
1 of the conditions, the drilling and completion conditions of
2 each well, the logs that were available and from that
3 information identified wells that require remediation in order
4 to satisfy the requirements of the injection order, so we
5 believe we've satisfied this requirement.
6 And this is Mr. Gentges again on question 17. Why has
7 CINGSA refused to perform a seismic hazard analysis in
8 combination with a ground liquefaction study?
9 How does CINGSA square their refusal to perform a seismic
10 hazard/liquefaction study with their assertion that CINGSA's
11 proposed project will be designed and constructed to meet the
12 best practices for seismic issues?
13 I testified yesterday in my opening statements that the
14 design criteria for this facility will meet all applicable US
15 DOT Part 192 code requirements for the surface facilities.
16 That is the criteria that we have to meet with these facilities
17 being a natural gas transmission facility. So they will be
18 designed in accordance with DOT requirements.
19 We will also design the facilities to meet all applicable
20 building codes, international building codes in the seismic
21 zone in which the facility exists. So we are compliant with
22 all of the requirements of the building codes and all existing
23 regulations. And, in fact, I believe in our surface facility
24 design we will actually exceed those code requirements in some
25 instances.
220
Exhibit A
Page 52 of 124
1 The same is true for the gas storage wells. They will be
2 constructed in accordance with all of AOGCC's regulations.
3 And, again, in our testimony yesterday I believe Mr. Perry
4 articulated our construction plans for the wells and in some
5 instances the criteria we will be constructing them to actually
6 exceed the criteria under the AOGCC regulations.
7 And I think the last question Mr. Goddard had was not in
8 his list, but he presented it verbally today and if I captured
9 it correctly -- and Mr. Goddard, correct me if I've
10 mischaracterize this, but I believe your question is, what is
11 the basis for the one percent probability of the wellbore, the
12 KW 13-8 well, acting as a vertical migration conduit, is that
13 correct?
14 MR. GODDARD: Yes. (Nods in the affirmative)
15 MR. GENTLES: Do you want to take this one?
16 MR. WALSH: Sure. This is Mr. Walsh for the record.
17 That, again, is a good question and actually there was no
18 statistical approach taken to that. It was more in line with
19 your comment that the risk is basically negligible and we
20 performed a decision tree analysis to look at the options
21 associated with mitigating any issues with that well or doing
22 nothing and we use the number one percent to plug in for that
23 risk analysis.
24 It is -- yeah, and I should point out that is a one
25 percent chance of cross flow between the Sterling and Beluga or
221
Exhibit A
Page 53 of 124
Cook Inlet Natural Gas Storage Alaska
Gas Storage Project
Alaska Oil and Gas Conservation Commission
October 19, 2010 Hearing
Cannery Loop Sterling C Pool
Injection Order Application
Aquifer Exemption Permit
Cook Inlet Natural"Gas
Exhibit A
Page 54 of 124
Technical Presentation Agenda
• Project Overview — Richard Gentges
• Geologic Analysis —Tom Walsh
• Reservoir and Integrity Analysis — Paul Winslow
is Detailed Drilling Plans — Conrad Perry
• Aquifer Exemption —William Van Dyke
• Seismic Risk — Mark Molinari
Cook Inlet Natural ; Cas
STORAQ a ,�
Exhibit A
Page 55 of 124
Project Overview
• Description of Operation
• Project Location
• Storage Area Legal Description
• Facility Design and Performance
• Project Schedule
• Updates to Injection Order Application
Cook Inlet Natural'Gas
STORAQ TP
Exhibit A
Page 56 of 124
Description of Operation
• CINGSA proposes to convert the nearly depleted Cannery
Loop Sterling C Pool (C I and C2 Sands) to underground
natural gas storage service.
• Drill and complete dedicated injection/withdrawal wells,
install natural gas driven reciprocating compressors,
measurement, and gas process facilities.
• Storage gas will generally be injected during the summer
months when gas demand is low and withdrawn during the
winter to satisfy peak demand requirements for South
Central Alaska.
• Gas deliveries to/from the proposed storage facility will be
via an interconnect with Marathon's KNPL 20 inch pipeline.
• CINGSA is in negotiations with Marathon Alaska
Production LLC (current operator) to acquire their
leasehold interests in the Sterling C Pool
• CINGSA has applied for a Gas Storage Lease with the
ADNR
Cook Inlet Natural; Cas
STORAC,,7a .
Exhibit A
Page 57 of 124
Proiect Location
Cook Inlet Natural.fi7as Exhibit
STO RAQ ; v 6 Page 58 of 124
Storage Area Legal Description
Cook Inlet Storage Field Boundary
City of Kenai, Alaska
Description
Acreage
SWI/4-SW1/4 of Section 4, Seward Meridian KN TSN, R1 1W
40
W1/2-SE1/4-SW1/4 of Section 4, Seward Meridian KN TSN, R1 1W
20
S3/4-NW1/4-SWI/4 of Section 4, Seward Meridian KN TSN, R1 IW
30
S1/2-SE1/4 of Section 5, Seward Meridian KN TSN, R11 W
80
S3/4-NE1/4-SE1/4 of Section 5, Seward Meridian KN TSN, R1 1W
30
S112-NW1/4-SE1/4 of Section 5, Seward Meridian KN TSN, R11 W
20
S1/2-NE1/4-NWI/4-SE1/4 of Section 5, Seward Meridian KN TSN, R1 1W
5
E1/2-SE/14-SW1/4 of Section 5, Seward Meridian KN TSN, R11 W
20
SE1/4-NE/14-SW1/4 of Section 5, Seward Meridian KN TSN, R11 W
10
E1/2-E1/2-SE1/4 of Section 7, Seward Meridian KN TSN, R11 W
40
E1/2 of Section 8, Seward Meridian KN TSN, R11 W
320
SW1/4 of Section 8, Seward Meridian KN TSN, R1 1W
160
S1/2-NW1/4 of Section 8, Seward Meridian KN TSN, R11 W
80
E1/2-NE1/4-NW1/4 of Section 8, Seward Meridian KN TSN, R11 W
20
SW1/4-NEI/4-NW1/4 of Section 8, Seward Meridian KN TSN, R11 W
10
SEI/4-NW1/4-NW1/4 of Section 8, Seward Meridian KN TSN, R11 W
10
W3/4-NW1/4 of Section 9, Seward Meridian KN TSN, R11 W
120
N/2-NW1/4-SW1/4 of Section 9, Seward Meridian KN TSN, R1 IW
20
SW1/4-NW1/4-SW1/4 of Section 9, Seward Meridian KN TSN, R1 1W
10
NW1/4-SW1/4-SWI/4 of Section 9, Seward Meridian KN TSN, R11 W
10
N3/4-W1/2-NE1/4 of Section 17, Seward Meridian KN TSN, R11 W
60
N3/4-W1/2-E1/2-NE1/4 of Section 17, Seward Meridian KN TSN, R11 W
30
N3/4-E1/2-NW1/4 of Section 17, Seward Meridian KN TSN, R11 W
60
NW1/4-NW1/4 of Section 17, Seward Meridian KN TSN, R11 W
40
NEI /4-SW1 /4-NW1 /4 of Section 17, Seward Meridian KN TSN, R11 W
10
N1/2-NW1/4-SW1/4-NW1/4 of Section 17, Seward Meridian KN TSN, R11 W
5
N El /4 -NE 1 /4-N E 1 /4 of Section 18, Seward Meridian KN TSN, R11 W
10
NEI /4 -SE 1 /4-N El /4-N E 1 /4 of Section 18, Seward Meridian KN TSN, R11 W
2.5
Total 1272.5
Cook Inlet Natural -Gas
STORACQ F
Exhibit A
Page 59 of 124
Facility Design and Performance
• Working Capacity
I I BCF initially (17 Bcf potential)
• Base Gas:
Total of 7 BCF
• Injection/Withdrawal Rate:
150 MMcf/d maximum
• Engine -Compressor Units (2)
2500 BHp (Cat Model 3608) natural gas fired, reciprocating engine driving a two-stage
reciprocating compressor
• Injection/Withdrawal Wells
Five (5) required for the initial design, directionally drilled from a single pad near the station.
• Gathering System
2200 psi MAOP that connects the wells to the storage station
Cook Inlet Natural Gas
STORAQ, r :�
Exhibit A
Page 60 of 124
Project Schedule
• Construction and
environmental permitting
• Site clearing
• Compressor station /surface
facility construction
• Injection /withdrawal well
drilling
• Initial injection
• Initial withdrawal (in-service)
Cook Inlet Natural -Cas
STORACA7a
Jun. — Nov. 2010
Nov. 2010
May 2011
Sept. 2011
Apr. 2012
Nov. 2012
Exhibit A
Page 61 of 124
Updates to Injection Order Application
- • Sub -surface Safety Valve Design
o 2 7/8" to 7"
• Annular Disposal of Drilling Mud
o First i/W well only vs. off-site disposal of drilling mud
• Geologic pick for top of Sterling C Pool
o formation
Revised ti pick -coansistent across entire Poocoal
• Remedial work plans for KU 13-8 well
Detailed engineering d ed totre enter the well of
cross flow
Cook Inlet Natural Gas
STORAQ.,
Exhibit A
Page 62 of 124
Geologic Analysis
• Generalized Stratigraphic Column
• Cook Inlet Tertiary Depositional Setting
• Sterling C —Type Log
• Sterling C —Well Cross-section
• Sterling C — Depth Structure Map
• Sterling C — Reservoir Properties
• Sterling C — Containment
Cook Inlet Natural; Cas
STORAQ.,
Exhibit A
Page 63 of 124
Stratigraphic Column
Cook Inlet Natural"Gas
STORAQ,
[rc
Pei
EPOch
Mo.---
'�"�OC rn=
.'� ..
T:19
Eocen�I�.
�orPL�rd
PCA_2Y
Srn7^nletri .,-
-
c'
f
I
�
-
w
J
;ir..
.i�••rrnc
:.'P1
Cook Inlet Stratigraphic Column. From Thomas, et.al., 2004 64oExhibit A
Page 64 of 124
Depositional System
Tertlai-y Basin
DepositionalLe
Systems
deposit
41
Channel•fill
deposit
m9no
Channetdsp
deposit
$play
Cook Inlet Natural, -Gas
STORACQ a P-
Tertiary Basin Depositional Systems (DNR)
Exhibit A
Page 65 of 124
CLU -8
Type
Log
waw ux
_�
- ..
mb xMA
tR
BNI
RR.glM9
_
vs_ '�mlQlms
mxl+m.
a
,m i
az._ao also
m® os
,
—
U. o
n
o® m
Cook Inlet Natural; Gas
STORA1 '1116
Q.,. �
The Cannery Loop Sterling C Pool is vertically
defined as the underground formations
comprising the C1 and C2 sands, bounded by the
base of the B5 coal formation (C1 TOP) and the
top of the Upper Beluga formation (UPPER
BELUGA TOP). The Cannery Loop Sterling C Pool
is vertically defined in the "Pool Type Log"
Cannery Loop Unit (CLU) -8 well (API #50-133-
20534-00) as the interval between the depths of
6690 feet measured depth (MD) (4871 feet true
vertical depth subsea [TVDSS)) and 6945 feet
MD (5101 feet TVDSS).
Exhibit A
Page 66 of 124
Sterling C — Cross Section
• Refer to large format plot
Cook Inlet Natural ;'Gas
STORACa
s a
Exhibit A
Page 67 of 124
Sterling C I -Depth Structure Map
Cannery
Cook Inlet Natural'Gas
STOKAQ ,,t I,
Exhibit A
Page 68 of 124
Reservoir Properties
Well
LMD (feet)
TVD (feet)
GRsa�d
GRCI.
4(DN
4(pp
(Dec (V/V)
RciQy
NTG
(API)
(API)
(V/V)
(V/V)
(Alin)
Top
Base
Top
Base
CLU -1
5814
6076
4985
5190
30
100
0.015
0.0
0.15
3.25
0.329
CLU -3
5344
5574
5060
5275
30
80
0.015
0.0
0.125
2.75
0.396
CLU -4
5212
5410
5070
5260
30
75
0.015
0.0
0.125
2.75
0.573
CLU -5
6090
6300
4935
5135
40
70
0.035
0.0
0.125
2.75
0.294
CLU -7
6090
6300
4925
5140
30
110
0.05
-0.02
0.20
3.0
0.394
CLU -8
6718
6945
4935
5140
30
100
0.035
0.0
0.15
3.0
0.373
CLU -9
5980
6195
4940
5145
30
100
0.035
0.0
0.125
3.0
0.651
CLU -10
5405
5614
4960
5165
30
100
0.0
0.0
0.15
3.0
0.386
CLU -11
6318
6537
4970
5170
30
105
0.045
0.0
0.15
3.0
0.405
CLU -12
7295
7522
5005
5215
30
105
0.03
-0.025
0.15
2.85
0.497
KU -13-8
4980
5200
4980
5200
-
-
-
-
-
3.0
0.123
Cook Inlet Natural ; -Cas
STORAQQ6 Q -;
Exhibit A
Page 69 of 124
Sterling C — Containment
• 4 -way dip closure
• Top Seal is provided by siltstone and shales at
the base of the Sterling B and top of Sterling C
• The B5 coal is present across the Cannery
Loop structure and is 10-20 ft thick.
• Bottom seal is the base of the Sterling
formation and top of the Upper Beluga
formation. This is a silty-shaly interval providing
competent sealing between Beluga and Sterling
pools
• Historic production and pressure data show
these reservoir seals to be effective
Cook Inlet Natural'Cas
STO j'1 A Exhibit A
11{\J1 p.. M Page 70 of 124
a$ a _ b
Sterling C — Containment
Cannery Loop Unit 9 5/8" Casing Leak -off Test (LOT) Results
Well
Casing Shop Depth
rn
Casing Shoe Depth
LOT Depth
Ryd
Mud Ild
1(psi)
LOT Departure Pressure
EW (at shoe)
W41
Frdc Gradient a Departure Pressure
(PSWIse
CLUB
67Y
4940'
9.0]
1107
13.28
0.6916 3427
CLU -9
59EO'
4939'
2'
9.31
967
13.03
0,679 3362
CLU -10
53E9'
4942'
d9Q'J
9.37
9ii7
1'.17
O.b�i 339
• All three leak -off tests indicate fracture gradient significantly higher
than hydrostatic gradient (initial reservoir pressure)
• Maximum injection gradient 73% of fracture gradient average
Cook Inlet Natural'"Gas
STORAQ .o -p Exhibit
ab c, O Page 71 of 124
Sterling C — Containment
•Sterling A and B appear to be water bearing
in available (shallow) well logs: CLU -1,
CLU -3, & CLUA
•Mud gas logs indicate little or no gas above
Sterling B-5 coal
Cook Inlet Natural '-Gas
STORACA7a
Exhibit A
Page 72 of 124
Reservoir Integrity Analysis
• Sterling C — Production and Pressure History
• Gas Storage Parameters
• Sterling / Beluga Pressure Isolation
Cook Inlet Natural; Gas
STORAQ 73 of 124 QS Q Page 73 of 124
Sterling C — Production & Pressure
• Initial Reservoir Pressure = 2,206 psia
• at datum of 4,966' TVD
• Storage project will not exceed this pressure
• Facilities not designed to exceed this pressure
• Initial Reservoir Pressure Gradient = 0.444 psi/ft
• Fracture Gradient = 0.684 psi/ft (at top of Sterling)
• O G I P = 26.5 Bcf
• I st Production Oct. 2000 (CLU -6 well)
• Max. Production Rate = ~ 15 MMcf/d (Dec.'01)
• Cumulative Gas Produced = 22.5 Bcf (thru Sep.` 10)
• Remaining GIP = 4.0 Bcf
Cook Inlet Natural Gas
STORACA7as a .,
Exhibit A
Page 74 of 124
Gas Storage Parameters
• Gas Storage Volume (initial phase) = 18 Bcf
7 Bcf base volume
I I Bcf working volume (initial phase)
17 Bcf working volume (max. future expansion)
• Initial number of development wells = 5
• Gas Storage Reservoir Pressure:
—630 psia (@ 7 Bcf GIP)
1,520 psia (@ 18 Bcf GIP)
2,000 psia (@ 24 Bcf GIP)
• Surface Operating Press. = 400 — 1,450 psig (simulated)
• Maximum Surface Injection Pressure requested = 2,200 prig
- Corresponds to a BHP gradient of 0.5 psi/ft
- 73% of Fracture Gradient
• Max. Production & Injection Rate = 150 MMcf/d (initial phase)
Cook Inlet Natural; Gas
STO D A / Exhibit 4
11 lI�'L/-�1 \vl^,.I{7 � Page 75 of 124
QS Q a
Sterling / Beluga Pressure Isolation
i. Material balance (P/Z vs. Cum Gas) indicates
closed Sterling "C" container.
• Attachment 8 of SIO application
• Pressure depletion -drive reservoir
• No indications of aquifer drive
2. Production history (Beluga & Sterling) shows no
signs of pressure communication.
3. Initial reservoir pressures from both the Beluga
and Sterling formations indicate pressure
isolation.
4. 2009 reservoir pressures in the Beluga and
Sterling formations.
Cook Inlet Natural"Gas
STORAQ P 76 of 124 Page 76 of 124
as a
Sterling C — Material Balance
LOOP UNIT Sterling C Sand
ICANNERY
Material Balance Analysis
3000
--
October 28, 2000
I(�
♦CLU -6
2500
♦
-
- -
2000
♦
-
— ----
June 8, 2004
a
N
1500
- -
-
x
i
Ca
1000
October 22, 2009
500
-
--- - -
0
5,000 10,000 15,000 20,000 25,000 30,000
Cumulative Produced Volume, MMscf
Cook Inlet Natural' 'Gas
STORAQQ
Exhibit A
Page 77 of 124
Sterling C & Beluga — Production History
STORAQ 78 of124
Page 78 of 12d
(15 0 _r'
Sterling C & Beluga — Initial Res. Pressures
• Beluga Initial reservoir pressure gradient = 0.446
psi/ft (2,310 psi @ datum of 5,175' TVD)
• Sterling Initial reservoir pressure gradient = 0.444
psi/ft (2,206 psi @ datum of 4,966' TVD)
• 33 Bcf of gas had been produced from the Beluga
before the Sterling formation was first produced (Oct.
2000)
• Note that the KU 13-8 wellbore was drilled and
abandoned in 1964
Cook Inlet Natural. -Gas
�7Q
STORA` s�
Exhibit A
Page 79 of 124
Sterling C & Beluga — 2009 Pressures
• Sterling C reservoir pressure in 2009:
• 424 psia in CLU -6 (Oct. 22, 2009)
• 465 psia in CLU -10 (Oct. 24, 2009)
• Upper Beluga reservoir pressure in 2009:
• 1,371 psia (2009 annual reservoir properties report to
AOGCC)
• U. Beluga producing from CLU -7,8,9, & I I
• Pressure differential along with continued straight line P/Z
trend (Sterling C) is another good indication of pressure
isolation between the Beluga and Sterling formations.
• Sterling C pressure measured in CLU -10 (south end of
Cannery Loop structure), indicates good lateral communication
across the Sterling C reservoir.
Cook Inlet Natura[Gas
STO AQ Exhibit A
K � M Page 80 of 124
a5 a .r
Drilling Plans
•Typical gas storage well schematic
• Casing design
• Storage well safety features
• Pressure monitoring
• KU 13-8 abandonment
• Mechanical integrity of existing wells
Cook Inlet Natural; -Gas
STORACa `e
Exhibit A
Page 81 of 124
CINGSA Gas Storage Well Schematic
Cook Inlet Natural; Gas
STOKA4,� .
CINGSA
Typical Completion Schematic
Wellhead - 13 5/8" 50004 Multibmvl - standard trim
Tom. 7" 5000+t complete with SSV - standard trim
20" 1330 K55 down to 100 TVD/100' MD
7" Wireline Retrievable SSSV 66 150' TVD/150' MD
13 3/8" 688 K55 PTC Surface Casing QL. 2000' TVD 1 2400'MD
I6" hole / Cemented to Surface
7" 268 L80 Vam Top Tubing
7" s 9 518" Liner Top Packer with 20' .cal hove..tensi�n
'ry 4825' TVD / 8950' MD
9 518" 4031-80 RTC Intermediate Casing Coi 4850' TVD 191 50'MD
12 1/4" hole 1 Cemented to Snrfncc
H- 50V of4 - 6 SPP perfbm mvn
7" 204 LA0 Vam Top Production Liner from 4825' TVD / 8950' MD TOP
to 5080' TVD / 10.950' MD TD A 112" hole/ Cemented
Exhibit A
CINGSA Casing Design
Casing Size
in
ND ft)
MD
ft
Weigh
Ibs k ID In Ddk In Grada
Connettion
Hole She
in
API Patin
To Bottom
To
Bottom
T e 0.0. in
Makeup
Torque
ft -lbs
Burst
si
Collapse
I
Tension
Ki s
1338"
0' 2,000'
V
2,400'
68N 12.415" 12.259" K55
BTC 14.375"
NA
16"
3450
1950
1069
958"
0' 4850'
Or
9150'
40g 8.835" 8.679" Lao
BTC 10.625"
NA
1214"
5750
3090
916
7"
4825' Saw
9150'
10950'
26d 6.276" 6.151" LBO
VAM 7.390"E7590
59D
81/2"
7240
5410
hoe
7"1
0' 4,825'
0'
9150'
26N 6.27W 6.151" LBO
VAM 7.390"
NA
7240
5410
604
-
Mud
Casing Weight Where
Size in Set
Casin
Shoe
Maximum
Surhace
Pressure
Design Factors
Frac.
Grad.
Formation
Pressure
Burst Collapse
Tension
133/8" 9
15
8.60
2000
1.66 2.18
2.14
95/8" 10
13
8.54
2500
1.96 1.37
1.83
T' 10
13
8.54
3000
2.1 2.4
4.6
Cook Inlet Natural, -Gas
STOAA,7as a ,
, .1
Exhibit A
Page 83 of 124
Storage Well Safety Features
Consistent with proven Cannery Loop Drilling
Techniques
- 13 Offset Wells
- Drilling Fluids
- Casing Design
-Well Head
- Close Approach Calculations
• Anticipates future AOGCC regulations with
Sub -Surface Safety Valves (SSSV)
• Cement to surface on all casing strings
Cook Inlet Naturat'Gas
Exhibit A
Page 84 of 124
CINGSA Pressure Monitoring
• Real-time monitoring via Supervisory Control
and Data Acquisition (SCADA) system
• Daily pressure and rate (production Wor
injection) recorded
• Monthly production and injection volumes
reported to the State
• Annual Reservoir Performance review
• Includes static reservoir pressures
each production & injection cycle
Cook Inlet Natural;Gas
STOAACa
s a
at the end of
Exhibit A
Page 85 of 124
KU 13-8 Abandonment - Schematic
Cook Inlet Natural .'Gas
STOKACA7a6 a sr
Exhibit A
Page 86 of 124
KU 13-8
Condndor:
113 8': wt unknopm
Ping=2:
Set from 25 h MO to snrtace
PLUG
n
Shoe: 75 ft. MD
Cement Top Cl*
190 ft MO
OnermeAlate Hole:
1214`
Inteimedlate Cming:
PLUG
858":2460
370 sx Clms A cement
Pinp - 1:
Setbonr 1270 ft to 1000 h MD
Shoe: 1159 h. MD
Pmduction Hole:
It
- -
758":Open Hole
eawol ee aor: aatae w
-'-
Sterling C Pool
pro°eb r •rMA
Top tWu%:9t9iRM
TD: 5506 ft. MD
.
lNot IoScalw. Diani.wittatit
Cook Inlet Natural .'Gas
STOKACA7a6 a sr
Exhibit A
Page 86 of 124
KU 13-8 Analysis
• Well abandoned in December 1964
• No cross flow during the past 46 years
• No measurable depletion - virgin pressure in
Sterling C after significant Beluga production
• No visible change in P/Z due to Beluga
production
• No visible change in the Beluga production due
to Sterling C production
• Cement isolation from casing shoe to surface
Cook Inlet Natural.' as
STORAC�as c �✓A Page 87of124
Mechanical Integrity
• There has been no cross flow from or to the Sterling
C reservoir
• Evaluated the mechanical integrity of all 12 wells
penetrating the Sterling C formation in the Cannery
Loop field
• Determined that remedial work is needed on CLU -6,
CLU -10, and CLU -12. Discussions underway with
Marathon on program.
Cook Inlet Natural;Gas
STO rl A� Exhibit 4
l�(' r- � � Page 88 of 124
DS � _a i
Cannery Loop Wells
Well
Name
API
Number
Original
Operator
Current
O orator
Patl
Location
Date
Odlletl
Data
Completed
MD
feet
TVD
feet
Formation
Completed
Current
Status
KU 13-8
50-133-101
UNOCAL
Standalone
Ndi
Exploratory
5506
5506
None
P5A(12/64)
CLU 1
50-133-20323-00-00
UNOCAL
MARATHON
SW Pad
Mar -79
Jun -79
10835
8698
Beluga 8 U. Tyonek
P 8 A (9/03)
CLU IRD
50-133-20323411-00
MARATHON
MARATHON
SW Pad
Oct -03
Noi
10835
8698
U. Tyonek
Producing
CLU2
50-133-20333-00-00
UNOCAL
Outside of field
Feb -B1
Exploratory
10731
10731
None
PSA
CLU3
50-133-20340-00-00
UNOCAL
MARATHON
NE Pad
May -81
Sep -81
11125
10564
Beluga
Shut-in(12/88)
CLU 4
50-133-20387-00-00
UNOCAL
MARATHON
NE Pad
May -87
Jan -88
16500
15959
Beluga 8 U. Tyonek
Shut-in (2/94)
CLU 5
50-13320474-00-00
MARATHON
MARATHON
SW Pad
Oct -96
Dec -96
11424
10238
Beluga 8 U. Tyonek
Shut-in (4/06)
CLU6
50-133-20492410-00
MARATHON
MARATHON
SW Pad
Sep -00
Cot -00
8320
5278
SterlingC
Producing
CLU 7
50-133-2053140-00
MARATHON
MARATHON
SW Pad
Dec -03
Feb -04
10864
7992
Beluga
Producing
CLU 8
50-13320534-00-00
MARATHON
MARATHON
SW Pad
Jan44
Apr -04
9777
7941
Beluga
Producing
CLU 9
50-133-2054400-00
MARATHON
MARATHON
SW Pad
Sep -04
No,04
9100
8042
Beluga
Producing
CLU 10
50-13120553-00-00
MARATHON
MARATHON
SW Pad
Jul -05
Sep -05
8450
8002
Beluga
Shut-in (3/06)
CLU 11
5013120559-00-00
MARATHON
MARATHON
NE Pad
Apr -06
Sep -06
9305
7914
Deluge
Protlucing
CLU 12
50133-201
MARATHON
MARATHON
NE Pad
Au -06
10415
8084 1
None
Suspended 9/06
Exhibit A
Page 89 of 124
CLU -6 Schematic
Open Sterling C
Possible Monitoring
Well
Cannery Loop Unit #6
Pad CLV•1
113' FSL. 465' FEL. Sac. 7.
TSN. R11W. S.M.
33-20/92-0040
AOL -60560 4
AOL. OWO
L 425 QI'AGL)
w1w000
cenwiw rb. `�
YO Sr. N'
r tI! DAMM
eMb�.
Ib x5H
)vo xlr. i
41Y+r CTr �. br.b
a)Y �-K /t5M `rM 1lr
Berur
Yp F 5]M
NC b OS^
.T N+rCr�HrW
I ..ImrlaaaH ripnrm
p e.ew Aa
LIM'MD
s.x)r rvD
bdm
WNMM.M.•{�-
C lenbUMa
.p arA M
Orr
O.b
.-'.
))N-).a1a )f .HY. A{)I
aM
)HIM
SbNrv�';• M1 CJ'..n.
)4ai-).Yf Q IJM.Ia>r
a{V
MaM
����
[���I�y{1
Llmafi
)laf•Y w, w
Lalf•LaX N Lttf•La
tow
aq
ay
•N1
1HIM
rr.i. >..
' aaar•awr ar awr. Llw.r
ar
Lae{
'ti
I {1•bIN Mtl
cenwiw rb. `�
YO Sr. N'
r tI! DAMM
eMb�.
Ib x5H
)vo xlr. i
41Y+r CTr �. br.b
a)Y �-K /t5M `rM 1lr
Berur
Yp F 5]M
NC b OS^
.T N+rCr�HrW
I ..ImrlaaaH ripnrm
p e.ew Aa
Exhibit A
Page 90 of 124
LIM'MD
s.x)r rvD
a
a0YIY0
slw�mm .
WNMM.M.•{�-
C lenbUMa
l�rr
C IMq VYr
r rYnn
yylNwW
14Y yh.1 Vlf~
.M d44
1$ .af a1D
Mr O. -N• nM ntf tY
[yr. tener.v
DeWrr )!. TM
rr.i. >..
Exhibit A
Page 90 of 124
CLU -10 Schematic
50.1112055]-0009
AX one?
90']1'55 WN
j� 1sT^1s Famw
Tf2y7pdy
Er.Ba99s
eyg 1700+Ra d10700'i
Cannery Loop 10
Pad 1
M' FSL. S29' FEL
Sec.?. TSN. R11W. SO
109 i
I
AM
v9ga,F,aw�pex9zctu ---
AS19
R fro u'a 1
1JR1' T•.:1
xr F35 1»1R'!
+a0 9011.}F
M9 C 1IT
TVD R liT
3.Y9'
LA a FES RTC
111xLd0B]pp1 EVEMe�!9.TB'Meonb1eE Wb95 6MTVP&W.9.1,O9T-1905.
TM 9a
ND
5 1.BST
TOC fe#:.!M JF..6Sr 1m.
5 1J
1t -I Cm.'FRe J. flow,
Kara ter MW MX
t..
S
9Ba5-rn999DR1 ter • l.ter
IL
AM
v9ga,F,aw�pex9zctu ---
AS19
R fro u'a 1
1JR1' T•.:1
xr F35 1»1R'!
+a0 9011.}F
M9 C 1IT
TVD R liT
3.Y9'
LA a FES RTC
111xLd0B]pp1 EVEMe�!9.TB'Meonb1eE Wb95 6MTVP&W.9.1,O9T-1905.
TM 9a
ND
5 1.BST
VD
5 1J
1t -I Cm.'FRe J. flow,
&elT.' Lda a0 B0+ bTL
pp b
MD a' Sur
f .. TVD 5 A.eaT
1119 Fal. CFq.1 Ta FBb J St6 tBa- <b.. G
S9W F tl DIIk Sd 1SA tei {f.N 9 b�'
Open
perforations in
Sterling C
Exhibit A
Page 91 of 124
111xLd0B]pp1 EVEMe�!9.TB'Meonb1eE Wb95 6MTVP&W.9.1,O9T-1905.
IL
eBMA]-F.Da5-F 1M
waa.x-et+s.ess
Open
perforations in
Sterling C
Exhibit A
Page 91 of 124
CLU -12 Schematic
9o-,naosesm -._--• CLU 12
au It
l V
a a.ad.
"1 � � 2` d"•
�jyf M Ia (tl 9: A a eTf r b
MIIe.Mb•.
91' I.N
2.M e81. 2 MS' IYM1 9<
rw anw s v
•�
ep19
t
Ce+MM+sl999tl'
aYq Cemp.+M
12•te.AA,
tw.+m+2 oow Gmnec x. cern
eR
�� pr.re+se goo
s.e «en 2a9+' n r 2x' ce+,+e+ r.., ...,za+•< �9.±r+.. se' a n� �. a—
•dewd awn i.Yv Ogaaa npt arc d'2u+M,P G�,r xda.dw.%
eleegq 9+n Fnn.M+m owne .2M�9n ]dn Lla.a6 •.
ra,r a •. ,on ... ...,�, r.•<�
�,p2 uwcwld +se7
5w++.vr+ ter2' n , 9er
�Iql GY G—,d +Se 9C9
sw l+n e9,r oa,w'
jj•I��ypy� a +rr Iw sre a In.+s
ua
wM Mwwe l9.Ter.
au It
l V
a a.ad.
x.w
MeeMre.. A— �
MIIe.Mb•.
ep19
MIT:
Ce+MM+sl999tl'
aYq Cemp.+M
12•te.AA,
eR
1aa aMMM WM1 S.'16?%'B
Un -cemented Gap
between Upper
Beluga and Lower
Sterling C permeable
sands
Exhibit A
Page 92 of 124
Aquifer Exemption
• Area Requested
• Strata and Depths Requested
• Geologic Review
• Groundwater Hydrology
• Formation Water Salinity
• Factors to Consider
• Summary
• Conclusion
Cook Inlet Natural; Gas
STOAAQQ `:1-A N'
Exhibit A
Page 93 of 124
Area Requested
• T S N,R I IW,SM
• Sec 4: SW 1/4
•
Sec
5: S 1/2
•
Sec
6:SE 1/4
•
Sec
7: E '/2
•
Sec
8
•
Sec
9:W '/2
•
Sec
16:W '/2
•
Sec
17
•
Sec
18: E '/2
•
Totaling approximately 3,300 acres.
Cook Inlet Natural Gas
STORAQ., 1Y
Exhibit A
Page 94 of 124
Area Requested
Cook Inlet Natural - G -as
STORACQ6 a
EXHIBIT 2
Exhibit A
Page 95 of 124
y OTGNR1fW �
E
�
1
1
a....y �..r
c
Ilwie
v
`1
■
1
1
1
a�Rrmm 1
��
1
1
1
Ifiai
a
s
n
roan
Cook Inlet Natural - G -as
STORACQ6 a
EXHIBIT 2
Exhibit A
Page 95 of 124
Strata and Depth Requested
• This request is for those strata lying deeper than
1300 feet below ground level in the area identified on
Exhibit 2 and in the text of the application. This
request is consistent with the existing Kenai gas field
Class II aquifer exemption in the adjoining area.
• This request is similar to the aquifer exemptions
granted for the nearby Swanson River, Sterling and
Beaver Creek Fields.
Cook Inlet Natural;Gas
STORAQ 96 of 24
¢ , � Page 96 of 124
QS Q _�...'I
Geologic Review
• Geologic Review presented by Mr.Tom
Walsh. For the record, in the application:
• Exhibit 4 is a type log
• Exhibit 5 is a structure map drawn on
the top of the Sterling C interval
• Exhibit
6
is
a north -south
cross section
• Exhibit
7
is
an east —west
cross section
Cook Inlet Natural 'Gas
STORAC a 9Exhibit A
7 of
,� Page 97 of 124
QS a
Groundwater Hydrology
• In the Cannery Loop area, drinking water is
readily available from relatively shallow aquifers.
Water wells as recorded with the State of
Alaska range in depth from I I feet to 229 feet
in the local area. No recorded wells exceed
229 feet in depth in the area. No recorded
water wells in the area are drilled into the
Sterling or deeper formations.
• Exhibit 8 lists the water wells in the local area
as taken from SOA Department of Natural
Resources records.
Cook Inlet Natural.'Gas
STORA ;P Exhibit
Page 98 of 124
as a
Formation Water Salinity
*Water samples available from the Sterling
C interval. See Exhibit 9
• Log Analysis used to calculate water
salinity from intervals above the Sterling C
interval. See Exhibit 10 and Exhibit I I
• Overall water salinity signature at
Cannery Loop is consistent with known
Kenai Peninsula geology
Cook Inlet Natural:,Gas
STORACQs a
Exhibit A
Page 99 of 124
Factors to Consider
• Evidence of Hydrocarbons
• The Sterling C interval is hydrocarbon
bearing
• Occurrences of methane gas in the Sterling
C and deeper formations make them
impractical, given the readily available
alternatives, as sources of fresh drinking
water, even if the salinity of the water in the
Sterling formation is less than 3,000 mg/I
TDS.
Cook Inlet Natural"Gas
STORACx7Q5 c, : r
Exhibit A
Page 100 of 124
Factors to Consider
• Depth makes i
for drinkina water
nomically im
ses
• No recorded water wells in the local area
are drilled deeper than 229 feet. Fresh
water is readily available from the shallow
Quaternary sands and gravel intervals.
• The cost to drill a water well deeper than
1300 feet below the ground surface is
prohibitively expensive relative to the cost of
shallow wells, even if the water has salinities
less than 3,000 mg/I TDS.
Cook Inlet Natural, Gas
STORAQ - s�
Exhibit A
Pagel 01 of 124
Factors to Consider
• The Quality of the water is diminished
• The water quality in the strata deeper than
1300 feet below ground surface is
diminished relative to the fresh water in the
shallow aquifers that serve as the source of
fresh water. The cost of treating the water
that contains between 300 and 5,000 mg/I
TDS from the deeper strata to make it
drinking water quality would make it
uneconomic to do so, given the abundant
fresh water readily available in the shallow
aquifers.
Cook Inlet Natural: Gas
STORAQ
Exhibit A
Page 102 of 124
Summary
The requested area and strata meet the following
specific regulatory criteria:
• 20 AAC 25.440(a)(1) --They do not currently
serve as a source of drinking water and
cannot now or will in the future serve as a
source of drinking water because--
• 20AAC 25.440(a)(1)(A)—it is hydrocarbon
producing or can be demonstrated by the
applicant to contain hydrocarbons that
considering their quantity and location are
expected to be commercially producible.
[Sterling formation and deeper formations
only]
Cook Inlet Naturall"Gas
STORA / P 03ofi24
`/.{, ��rA-,-t{� ,� � Page 103 of 124
Q8 Q .r'
Summary
2. The requested area and strata meet the
following specific regulatory criteria:
• 20AAC 25.440(a)(/) --They do not currently serve as
a source of drinking water and cannot now or will in
the future serve as a source of drinking water
because—
• 20AAC 25.440(a)(1)(B) —They are situated at
a depth that makes recovery of water for
drinking water purposes economically
impractical. In addition, readily available
sources of fresh drinking water are available
from shallow strata in the local area.
Cook Inlet Natural Gas
STORAQ
Exhibit A
Page 104 of 124
Summary
3. The requested area and strata meet the
following specific regulatory criteria:
• 20AAC 25.440(a)(/) --They do not currently serve as
a source of drinking water and cannot now or will in
the future serve as a source of drinking water
because -
20 AAC 25.440(a)(I)(C)—it is so
contaminated that recovery of water for
drinking water purposes is economically or
technologically impractical
Cook Inlet Natural-lGas
STOKA ExhibifA
.,;P Page 105 of 124
Q5 Q �'4
Conclusion
• This request meets the criteria in 20
AAC 25.440 for the granting of the
requested aquifer exemption.
Cook Inlet Natural:,Gas
STORAC,�a� A „
Exhibit A
Page 106 of 124
Seismic Risk
• South Central Alaska is situated along tectonic
plate boundary —Aleutian megathrust
• Pacific Plate is subducted beneath North
American Plate at ~ 5.5 cm/yr
• High rate of historical seismicity
• 1964 Mw 9.2 earthquake (EQ) — 2nd largest
historical EQ worldwide
• Kenai area EQ risk is similar to other areas of
Cook Inlet and Prince William Sound region
Cook Inlet Natural; Gas
STORAQ e /A ExhibitA
SSSKKKQQQ • • Page 107 of 124
Tectonic Setting and Regional
Fau Its
••... » MMM AMNIM PIN
.. �� Mpmoea BIocR r F2 ��a
p� Yakutat 9lock
Kane1 LkleKnenl
/ rk
Legend
• CINGS S.
tomes
NrsMc
Nom..
We Re�stvxM
O. � Ouaremary
R (�L
�.� PxmePll" 'C4
ey
Jt� rs0
m4(
N
/
`
`1
I,-1;
Late CMOZoic Faults In Southern Alaska
ENsAR CINGSA
Nerrm. Abs\a
Exhibit A
Page 108 of 124 -.
Ne�ere
04"N
_
prtRon of ryMe vFp
' -
IAepallr[[[st srslem
a'� Nrsprc
1
L.fe RFsta<m
�.� PxmePll" 'C4
ey
Jt� rs0
m4(
N
/
`
`1
I,-1;
Late CMOZoic Faults In Southern Alaska
ENsAR CINGSA
Nerrm. Abs\a
Exhibit A
Page 108 of 124 -.
Historical Large Earthquake Ruptures
Fipme]. Pcs re areas of large renhgoates in Alaska am the Aleutian Islands from 1903 m 2001
Source: USGS, 2007
Exhibit A
Page 109 of 124
South Central Alaska EQ Sources -
Interplate
• Rupture on subduction zone interface between
tectonic plates — 1964 EQ
1600 1500W
Source: Christensen and Beck, 1994
Cook Inlet Natural Gas
60° N
56°
STORAQ Page 110 of 10 of itA
12a 24
SSS IKKCQQa r �
South Central Alaska EQ Sources -
Interplate
-- • Caused by release of compressive stress
• M 9+ EQs recurrence ~ 500-950 yrs
based on regional paleoseismology
• Average recurrence ~ 700-800 yrs
• Repeat of 1964 EQ has very low
probability
• Rupture from Cook Inlet to SW beyond
Kodiak more likely but still low
probability
Exhibit A
Page 111 of 124
1964 Tectonic Deformation
T- %a A14ATION1
Iwn ,eORitllR sI1GY5W ]Wih i
.luwGslluc'd( 1'.ifkli: ._. ' S
��/f6nllM n•S14 nY> RC5/!f'-( �
rne6. LRM �.W: in:rrt4' , .I t"91Y
89god7LLe rm Mlecelss+la
4/N.JELLM etf�ut uaaWUR Nt«dR+re'•' •'�e'y':.:
nT ILRWL sine eddgM aW,1.lE''�.� .?,i ^ !yKe€f
.'tjui ahi•5 10 '
'P.W`.+•u ib;AwJ.♦aafioe.� 6axL
Aw
14y r
n Jy(
ov
Sanaa: PIsNr. IYEe
Map of 1984 Earthquake Tectonic
N
A
Fp 5.2
and Subsidence
ENSTAR CINOSA
Kellet. AW
Exhibit
Page 112 of 124
South Central Alaska EQ Sources —
Intraplate (Intraslab)
• Caused by extensional stress is
subducted plate slab
• Historical Worldwide = M 7 to 8
• Site Region Historical EQs — Four M 7.0
to 7.7 since 1900
• All in Kodiak Island area
• ~ 46 km (29 miles) beneath site
Exhibit A
Page 113 of 124
Cook Inlet Region Faults and Folds
- � M O 11 M r>Y•
S AL,Af EY 18A -.m4.7
rnw.
+jO •IM
p � $U QA1 nR
INt lay�IRnl!
1
i5 a / tir Alt •I,
aAmhnrapI fir•
f�
t< 7' --
e •_
EMANATION I
114
,II„t• +L lj) �O I;mlts xllh NCnrrnc nr
Y lir tin (hlalClTiQR ITMCMMI '
f1i14•r -as liff:i
e L L Licosnf'SLcjinn Im
+u 1: i�l.tre, c-� and 5-4
e Y j
° MSF 4Lcrl W mmlinv Fant!
a
Exhibit A
Page 114 of 124
I
I
JfJ�f-� I
t
Source:
Haeussler et al 2000
- � M O 11 M r>Y•
S AL,Af EY 18A -.m4.7
rnw.
+jO •IM
p � $U QA1 nR
INt lay�IRnl!
1
i5 a / tir Alt •I,
aAmhnrapI fir•
f�
t< 7' --
e •_
EMANATION I
114
,II„t• +L lj) �O I;mlts xllh NCnrrnc nr
Y lir tin (hlalClTiQR ITMCMMI '
f1i14•r -as liff:i
e L L Licosnf'SLcjinn Im
+u 1: i�l.tre, c-� and 5-4
e Y j
° MSF 4Lcrl W mmlinv Fant!
a
Exhibit A
Page 114 of 124
Post -1964 Deep Seismicity
Edge of 1 %4
Eatthauake
Northwest Rupture Zone Southeast
CINGSA
LShe La
20`
Top of
:` YVa�ataBenioff
46 kn1• ► Zone
40-
60-
80-1/.-
100-
0 80 '/100
• , 1934
120
0 20 40 60 80 100 120
Distance (km)
Souze. V#Jeux a.M 00�, 200"
Exhibit A
Page 115 of 124
Post- 1964 Shallow Seismicity
CINGSA K
KI Site Southeast
Northwest
OW 0 1%---te-
• ` • • • • • • •
• •� • ti•s t�• • '/t•� • • • ` • •
•
` • Top of ` • ` •
• Wadab4Benioff w •
• • Zona • ? • •~� �•
•• t •
• •• •
•
0 20 ao so so 100 120 140
distance. km
Souice- Fuses and Dow. 2005.
Exhibit A
Page 116 of 124
Fault Rupture Hazard
• No AK criteria for active fault
• CA and common criteria for active
tectonic areas =Holocene (< 10- 11 k)
•Closest known Holocene fault is Castle
Mtn.
• Closest potentially active fault =West
Boundary fault in Cook Inlet
• ~ 25 km (16 miles) from site
Exhibit A
Page 117 of 124 ,
Cannery Loop Geologic Structure
• Cannery Loop fault and fold
• No published evidence of
Quaternary displacement or
deformation
• — 3 km (2 miles) from well head
and compressors
• Not intersected by planned
directional wells
• No fault rupture hazard to
planned surface and subsurface
facilities
Exhibit A
Page 118 of 124
EQ Ground Motion Hazard
•
Kenai
area
EQ
risk
is similar
to other
areas of
Cook
Inlet and
Prince William Sound
region
• USGS probabilistic ground motion maps
• Primary contribution at site is from future
subduction zone earthquakes
• Time independent — conservative since it isn't
based on time since 1964 EQ
• Similar risk as SoCal, and western WA and OR
where gas storage facilities are located
Exhibit A
Page 119 of 124
USGS 475 -yr (10% in 50 yr)
Horizontal PGA Map 350+
255
Alaska 125
75
rE
-170- -160'
PGA, 10% in 50 years
Exhibit A
Page 120 of 124
USGS 2,475 -yr (2% in 50 yr)
Horizontal PGA Map
rE
Alaska
350+
255
125
%5
160' V
PGA. 21% in 50 years
Exhibit A
Page 121 of 124
EQ Ground Motion Design
• USGS estimates for rock are: 475 -yr = 0.36 g and
2475 -yr = 0.59 g
• USGS values and soil factor accounted for in seismic
design criteria per Alaska Building Code
• Code is appropriate for above ground facilities and
pipelines — higher design levels not warranted
• No special criteria for subsurface well construction
in AK or other western U.S. States
• Unnecessary because ground shaking not a risk to
properly constructed wells
• Wells move with soil/rock and there is not
differential displacement
Exhibit A
Page 122 of 124
Liquefaction and Lateral Spread
• Typically occurs in loose, saturated,
cohesionless soils (e.g. sands and silt/sand
mixtures) at depths <50 ft
• Loss of soil strength due to increased pore
pressure from EQ shaking
• No reported liquefaction or lateral spreading
for site area in 1964
• No nearby slopes or free faces that could
affect site by lateral spreading
• Settlement for liquefaction, if any, can be
accommodated by foundation design
Exhibit A
Page 123 of 124
Other Geologic and Seismic
Hazards Evaluated
No identified hazards at site associated with:
• Tectonic and Local Subsidence
• Tsunami
• Flooding
• Slope stability
• Volcanic hazards
• Volcanic ash fall is the only identified
hazard that could impact operation —
temporary impact
potential
Exhibit A
Page 124 of 124
AOG(C
8/4/2020 IT MO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
Docket No. 0TH -20-09
ALASKA OIL AND GAS CONSERVATION COMMISSION
In the Matter of the Application of )
Hilcorp Alaska for Sundry Approval to )
Perforate Cannery Loop Wells 13C and 15C )
Which Pass Through the Sterling C Gas )
Storage Pool and Which are Within 1,500 )
Feet of the Vertical Property Line. )
Docket No.: 0TH 2O-009
PUBLIC HEARING
August 4, 2020
10:00 o'clock a.m.
BEFORE: Jeremy Price, Chairman
Jessie Chmielowski, Commissioner
Daniel T. Seamount, Commissioner
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr.. Ste. 2., Arch. AK 99501 Fax 907-243-1473 Email sahile(a)gci net
AOGCC 8/4/2020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
Docket No. OTH-20-09
Page 2
1 TABLE OF CONTENTS
2 Opening remarks by Chairman Price 03
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Anch. AK99501 Fax: 907-243-1473 Email: sahile@gci.net
AOGC(
8/4/2020 ITMO- APPLICATION OF HIL(ORP AK FOR SUNDRY APPROVAL
Docket No. 0 F 20-09
Page 3
1 P
R O C E
E
D I N G S
2 (On record
- 10:00
a.m.)
3 CHAIRMAN PRICE: Good morning. I'll call this
4 hearing to order. Thank you for going through this
5 exercise. This is I think just the second hearing that
6 we've done telephonically so appreciate everyone's
7 patience and interest in accommodating these new
8 procedures.
9 This is docket number OTH 2O-009, considering
10 the amendment of conservation order 231. This hearing
11 is being held on the morning of August 4th, 2020 at
12 10:00 a.m. The location is the Alaska Oil and Gas
13 Conservation Commission offices at 333 West 7th Avenue,
14 Anchorage, Alaska. Before we begin I'll introduce the
15 Commissioners. To my left is Commissioner Dan Seamount
16 and to my right is Commissioner Jessie Chmielowski, I
17 am Jeremy Price, Commissioner and Chair. If any
18 persons on the phone need special accommodations to
19 participate in these hearings -- in these proceedings,
20 sorry, please contact Jody Colombie and she will do her
21 best to accommodate you.
22 First I'd like to ask is there anybody who
23 can't hear me, is there any concern with the volume, do
24 I need to speak louder or are we okay?
25 (No comments)
Compute[ Matrix, LLC Phone_ 907-243-0668
13501nstensenf),-Ste. 2., Anch. AK99501 Fax: 907-243-1473 Email: sahi1e(0,)gci. net
AOGCC
84/1020 ITMO. APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
Docket No. OTH-20-09
Page 4
1 CHAIRMAN PRICE: By that sound I guess we're
2 going to be all right unless you can't hear me at all
3 then we're going to have some troubles. But let's keep
4 moving, I'll try to speak loudly enough for everybody
5 to hear me.
6 Today Computer Matrix will be recording the
7 proceeding. Upon completion and preparation of the
8 transcript persons desiring a copy will be able to
9 obtain it by contacting Computer Matrix.
10 Recently Hilcorp Alaska, LLC or Hilcorp
11 submitted an application for sundry approval forms to
12 perforate the Cannery Loop Unit 13 and 15 wells. Both
13 CLU 13 and CLU 15 pass through reservoir sands within
14 Cook Inlet Natural Gas Storage Alaska, LLC or CINGSA's
15 Sterling C gas storage pool. Because some of the
16 intervals Hilcorp seeks to perforate are within 1,500
17 feet of the vertical property line of the gas storage
18 pool they require spacing exceptions under rule 4 of
19 conservation order 231 and 20 AAC 25.055 of the
20 Commission's regulations.
21 As a result on its own motion the AOGCC set a
22 hearing to consider amending conservation order 231.
23 The purpose of this hearing is to review whether a
24 1,500 foot offset requirement for such gas wells is
25 appropriate for a vertical property line or whether it
Computer Matrix. LLC Phone: 907-243-0668
135Chdsleusen Dr-Ste.2-Anch AK99501 Fax907-243-1473 Email: sahile(aigm. net
AOGCC
8 4, 2020 1 FMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
Docket No.OT11-20-09
Page 5
1 is appropriate to amend conservation order 231 to allow
2 perforations closer to the storage pool boundary. If
3 such perforations are allowed how close may those
4 perforations be placed to the pool boundary and what
5 methods Hilcorp and CINGSA can employ to demonstrate
6 that correlative rights will be protected.
7 On August 3rd, 2020 the two parties submitted
8 an agreement with a number of protocols in an effort to
9 ensure the integrity of each party's reservoir. This
10 letter is being reviewed at this time. CINGSA also
11 filed a request to continue today's hearing due to
12 logistical issues. The Commission has granted that
13 request and so today we are here to schedule that
14 hearing.
15 The Commission is continuing this hearing until
16 Thursday, August 27th at 10:00 a.m. Are there any
17 conflicts with this date from the parties?
18 MS. SMITH: CINGSA has no conflict with that
19 date.
20 Thank you, Commissioner.
21 CHAIRMAN PRICE: That's August 27th at 10:00
22 a.m. That's a Thursday.
23 MS. SMITH: Commissioner, this is Moira Smith
24 on behalf of CINGSA and we have no conflicts with that
25 date.
Computer Matrix, LLC Phone907343 0668
135 Christensen Dr., Ste, 2., And, Ate 99501 Pax: 907-243-1473 Email- sahilept,ei.nel
AOGcc
8/4/2020 ITMO: APPLICATION OF HILCORP AK FOR SUNDRY APPROVAL
Docket No. OTH-20-09
1 Thank you.
2 CHAIRMAN PRICE: Thank you. Any concerns from
3 Hilcorp?
4 MR. McCONKEY: This is Anthony McConkey on
5 behalf of Hilcorp. We have no conflicts with that
6 date.
7 CHAIRMAN PRICE: Okay. Then we'll set the
8 hearing for Thursday, August 27th at 10:00 a.m.
9 Commissioners, any thoughts you'd like to
10 express at this time?
11 COMMISSIONER SEAMOUNT: Not at this time, Mr.
12 Chair.
13 COMMISSIONER CHMIELOWSKI: No. Thank you.
14 CHAIRMAN PRICE: Okay. Any questions from the
15 parties at this time?
16 MS. SMITH: This is CINGSA and we have no
17 questions at this time.
18 Thank you, Chair.
19 CHAIRMAN PRICE: Thank you. Any concerns from
20 Hilcorp at this time?
21 MR. McCONKEY: This is Anthony McConkey. No,
22 we don't have any questions at this time.
23 CHAIRMAN PRICE: Okay. Thank you, Then we
24 will reconvene at 10:00 a.m. on August 27th. Until
25 then this hearing is adjourned.
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dr., Ste. 2., Anch. AK 99501 Fax: 907-243-1473 Lmaih saNle@gci.oet
AOGCC
8,4/2020 FFMO: APPLICATION OF HILCORP A K FOR SUNDRYAPPROVAL
Page 7
(Hearing adjourned - 10:09 a.m.)
2
F1 (END OF PROCEEDINGS)
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
r..
135 Christensen Dr, Ste 2., Anch, AK 99501 Phone: 907-243-0668
Fax: 907-243-1473 Email: sahileGagcinel
AO(,((
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
9 4:2020 ITMO. APPL (CATION OF [if]]CORP AK FOR SUNDRY APPROVAL.
Ducker N. OTH-20-09
TRANSCRIBER'S CERTIFICATE
I, Salena A. Hile, hereby certify that the
foregoing pages numbered 02 through 08 are a true,
accurate, and complete transcript of proceedings in
Docket No.: CO 20-009, transcribed under my direction
from a copy of an electronic sound recording to the
best of our knowledge and ability.
DATE
SALENA A. RILE, (Transcriber)
Computer Matrix, LLC Phone: 907-243-0668
135 Christensen Dc, Ste. 2., Anch. AK 99501 Pax: 907-243-1473 Email: sahile(aigci. no
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION COMMISSION
Docket Number: CO -20-009
August 4, 2020 at 10:00 am
NAME AFFILIATION Testify (yes or no)
RECEIVED
By Jody Coiombie at 10:42 am, Aug 03, 2020
August 3, 2020
AOGCC
333 W 7'h Avenue
Anchorage, AK 99501
Re: Joint Request to Cancel August 4, 2020 Hearing and Joint Request to Amend CO
231.001
Dear Commissioners:
Cook Inlet Natural Gas Storage Alaska, LLC ("CINGSA") and Hilcorp Alaska, LLC ("Hilcorp")
hereby jointly request that the Commission cancel tomorrow's hearing regarding the above -
referenced spacing exception. In lieu of a contested hearing, CINGSA and Hilcorp hereby jointly
request that the Commission amend Conservation Order (CO) 231.001 to reflect the terms agreed
to by the parties, as set forth herein. CINGSA and Hilcorp believe that amendment of CO 231.001
in accordance with the terms set forth in this letter is consistent with sound engineering and
geoscience principles and will not jeopardize either party's correlative rights. This proposed
amendment will also allow for maximum use of the vertical reservoirs in the Cannery Loop Unit
for both production and storage purposes, thereby avoiding waste.
Rule 3 of CO 231 established spacing requirements for wells within the Cannery Loop Unit. In
2014, Hilcorp applied for an exception to these spacing requirements for purposes of drilling the
Cannery Loop 13 development gas well.' The Commission granted this exception in CO 231.001.
The general 1,500 vertical spacing requirement, however, was reiterated by the Commission in
that order: "...the spacing exception for Cannery Loop Unit No. 13 is limited to the Beluga and
Upper Tyonek Gas Pools at locations that are more than 1,500' from any property that is not
committed to the Cannery Loop Unit, including a set -back of 1,500 true vertical feet from the base
of CINGSA's overlying Sterling C Gas Storage Pool, which corresponds to the lower boundary
for oil and gas storage lease ADL -391627."' The Cannery Loop Unit has both productive and
' Docket Number CO -14-031.
2 CO 231.001, Conclusion ¶ 3 (internal citation omitted).
August 3, 2020
Joint Hilcorp-CINGSA Letter to AOGCC
Page 2 of 4
storage zones.3 Hilcorp owns all of the leases in the Cannery Loop Unit other than the Sterling C
Gas Storage Pool.
Between April 20 and May 13, 2020, Hilcorp filed Applications for Sundry Approvals related to
planned drilling operations in CLUs SRD, 13 and 15. Because the proposed drilling operations
would come within 1,500 true vertical feet of the CINGSA Sterling C Gas Storage Pool, on April
22, 2020, the AOGCC asked Hilcorp to obtain a letter of non -objection from CINGSA. Following
this request, the two parties conferred regarding the best protocols to follow to ensure the integrity
of each party's reservoirs.
After conferring, the parties have agreed on the following protocols:
The parties agree to exchange the following data:
all sundry applications and approvals for new wells that penetrate the
Sterling C Gas Storage Pool.
all sundry applications and approvals for perforations of existing wells
within 1500 feet of the Sterling C Gas Storage Pool.
When drilling, provide logging while drilling (LWD) logs within 30 days
after completion, but prior to any perforating work within 200 feet TVD
of the Sterling C Gas Storage Pool. If LWD is not employed, within 30
days of completion, but prior to any perforating work within 200 feet
TVD of the Sterling C Gas Storage Pool, provide a copy of all open -hole
logs run across the Sterling C Gas Storage Pool and at least 100 feet into
the Beluga formation.
Only until drilling in Sterling C Gas Storage Pool is cased and cemented,
provide Daily Drilling Reports within 48 hours of their creation.
Cement bond logs (CBLs, or cement evaluation logs) to 100 feet TVD
below the Sterling C Gas Storage Pool as defined in the CLU 8 type log
(1) for all current Hilcorp wells that penetrate the Sterling C Gas Storage
Pool and (2) for any future well that penetrates the Sterling C Gas Storage
Pool, as commercially and time practicable, prior to any perforating work
within 200 feet TVD of the Sterling C Gas Storage Pool, and as they
become available.
' CO 231.001, Finding 7 (""Within the Cannery Loop Unit, the Beluga, Upper Tyonek, and Tyonek D
Gas Pools lie beneath the Sterling C Gas Storage Pool that is located within State of Alaska lease ADL -
391627. Lease ADL -391627 and the Sterling C Gas Storage Pool are owned and operated by CINGSA.
The Sterling C Gas Storage Pool is defined in, and governed by, Storage Injection Order Nos. 9 and
9A.").
August 3, 2020
Joint Hilcorp-CINGSA Letter to AOGCC
Page 3 of 4
• Provide bottom hole pressure surveys when run in CLU 8 or in any other
well that is open within 100 feet TVD based on the CLU 8 type log of
CINGSA's Sterling C Gas Storage Pool.
• No future perforations within 50 feet TVD of CINGSA's Sterling C Gas
Storage Pool as defined by the CLU 8 type log (adjusted for co -relative
depth at the well in question).
• Open hole log data for the CLU 8 well to 100 feet TVD below the Sterling
C Gas Storage Pool as defined in the CLU 8 type log.
• For so long as CLU -8 is open within 50 feet of CINGSA's Sterling C Gas
Storage Pool, Hilcorp will continue providing CINGSA with daily flow
and pressure data and monthly updates to their material balance analysis
(the graphical plot which shows flowing pressure (P/Z) vs. cumulative
production).
• Monthly casing and tubing pressures on all wells that penetrate the
Sterling C Gas Storage Pool.
• Report any condition that may indicate a loss of integrity for "incidents"
(as defined by 49 CFR 191.3) within one hour of "confirmed discovery."
Confirmed Discovery means when it can be reasonably determined,
based on information available at the time, that a reportable event has
occurred, even if only based on a preliminary evaluation. For all other
conditions, within 5 working days after the day a representative first
determines that the condition exists.
As to all future wells, CINGSA will require that intermediate casing be set and
cemented a minimum of 50 feet below the base of the Sterling C Gas Storage
Pool. The CBL must show good cement bond across this entire 50 foot interval
(CINGSA and Hilcorp must jointly agree to this assessment), and the casing must
pass the AOGCC mandated MIT/leak-off test of the casing shoe. For any existing
wells, if intermediate casing is not set at least 50 feet below the Sterling C Pool,
CINGSA requires a minimum of 100 feet interval of good pipe to formation bond of
the primary casing string below the base of the Sterling C Pool.
CINGSA requires a 50 foot minimum buffer below the base of the Sterling C Pool
as correlated to the CLU -8 type log, within which no new perforations may be
made. Both parties require notification for any perforation activity less than 1,500
feet (vertically) from the base of the Sterling C Pool. Completion and re -completion
plans that include hydraulic fracturing require a 100 -foot buffer below the base of the
Sterling C Pool, as correlated to the CLU -8 type log, within which no new
perforations may be made. No perforations may be made within the 50 and 100 foot
intervals referenced immediately above.
August 3, 2020
Joint Hilcorp-CINGSA Letter to AOGCC
Page 4 of 4
CINGSA and Hilcorp appreciate the Commission's attention to this request.
Sincerely,
Denali Kemppel Moira Smith
Hilcorp Alaska, LLC CINGSA
RECEIVED
By Jody Colombie at 10:43 am, Aug 03, 2020
CINGSA and Hilcorp appreciate the Commission's attention to this request_
Sincerely,
Denali Kemppel Moira Smith
Hilcorp Alaska, LLC CINGSA
Colombie, Jody J (CED)
From:
Colombie, Jody J (CED)
Sent:
Friday, June 26, 2020 3:20 PM
To:
Seamount, Dan T (CED); Chmielowski, Jessie L C (CED); Price, Jeremy M (CED); Davies,
Stephen F (CED); Schwartz, Guy L (CED); Ballantine, Tab A (LAW)
Cc:
Colombie, Jody J (CED)
Subject:
FW: Docket Number: CO -20-009
Categories: Yellow Category
From: Moira Smith <Moira.Smith@enstarnaturalgas.com>
Sent: Friday, June 26, 2020 2:00 PM
To: Colombie, Jody J (CED) <jody.colombie@alaska.gov>
Cc: Denali Kemppel <dkemppel@hilcorp.com>; Matthew Federle <Matthew.Federle@cingsa.com>; John Sims
<John.Sims@enstarnatura Igas.com>
Subject: Docket Number: CO -20-009
Ms. Colombie,
Please consider this CINGSA's formal request for a hearing in the above -referenced matter.
Thank you,
Moira Smith
Vice President and General Counsel
CINGSA
Notice of Public Hearing
STATE OF ALASKA
ALASKA OIL AND GAS CONSERVATION
Re: Docket Numbers: CO -20-009
Amendment of Conservation Order 231
Hilcorp Alaska, LLC (Hilcorp) submitted Application for Sundry Approvals Forms to perforate
the Cannery Loop Unit (CLU) 13 and 15 wells. Both CLU 13 and CLU 15 pass through reservoir
sands within CINGSA's Sterling C Gas Storage Pool. Because some of the intervals Hilcorp seeks
to perforate are within 1,500 feet of the vertical property line of the gas storage pool (State of
Alaska Lease ADL 391627), they require spacing exceptions under Rule 4 of Conservation Order
(CO) 231 and 20 AAC 25.055. As a result, on its own motion, the Alaska Oil and Gas Conservation
Commission (AOGCC) is setting a hearing to consider amending CO 231. Specifically, AOGCC
is reviewing whether a 1500 -foot offset requirement is appropriate for a vertical property line.
The AOGCC has scheduled a public hearing on this subject for August 4, 2020, at 10:00 a.m. at
333 West 71 Avenue, Anchorage, Alaska 99501.
If, due to health mandates issued as a result of the covid-19 virus, it becomes necessary to conduct
the hearing telephonically, those desiring to participate or be present at the hearing should check
with AOGCC the day before the hearing to ascertain if the hearing will be telephonic. If the hearing
is telephonic, on the day of the hearing, those desiring to be present or participate should call 1-
800-315-6338 and, when instructed to do so, enter the code 14331. Because the hearing will start
at 10:00 a.m., the phone lines will be available starting at 9:45 a.m. Depending on call volume,
those calling in may need to make repeated attempts before getting through.
If a request for a hearing is not timely filed, the AOGCC may consider the issuance of an order
without a hearing. To learn if the AOGCC will hold the hearing, call (907) 793-1221 after June
10, 2020.
In addition, written comments regarding this application may be submitted to the AOGCC, at 333
West 7th Avenue, Anchorage, Alaska 99501. Comments must be received no later than 4:30 p.m.
on June 27, 2020, except that, if a hearing is held, comments must be received no later than the
conclusion of the August 4, 2020 hearing.
If, because of a disability, special accommodations may be needed to comment or attend the
hearing, contact the AOGCC's Special Assistant, Jody Colombie, at (907) 793-1221, no later than
July 30, 2020.
Jessie L
GMmklowAd
Chmielowski ww 0 00 3110' �' a
Jessie L. Chmielowski
Commissioner
STATE OF ALASKA
ADVERTISING
ORDER
NOTICE TO PUBLISHER
SUBMITINVOICE SHOWING ADVERTISING ORDER NO., CERTIFIED
AFFIDAVITOF PUBLICATION WITH ATTACHED COPY OF
ADVERTISMENT.
ADVERTISING ORDER NUMBER
p 1
AO -08-20-025
FROM: AGENCY CONTACT:
Jody Colombie/Samantha Carlisle
Alaska Oil and Gas Conservation Commission DATE OF A.O. AGENCY PHONE:
333 West 7th Avenue 521/2020 907 279-1433
Anchors e, Alaska 99501
DATES ADVERTISEMENT REQUIRED:
COMPANY CONTACT NAME:
7HONE
NUMBER: ASAP
FAX NUMBER:
907 276-7542
TO PUBLISHER:
Anchorage Daily News LLC
SPECIAL INSTRUCTIONS:
PO Box 140147
Anchorage, Alaska 99514.0174
TYPE OF ADVERTISEMENT:
FV LEGAL f— DISPLAY r CLASSIFIED r OTHER (Specify below)
DESCRIPTION PRICE
CO -20-009
Initials of who prepared AO:
Alaska Non -Taxable 92-600185
SUBMIT INVOICE SHOWING ADVERTISING
ORDER NO., CERTIFIED AFFIDAVR OF
PUBLICATION WITH ATTACHED COPY OF
ADVERTISMENT TO:
AOGCC
333 West 7th Avenue
Anchorage, Alaska 99501
Pae I of I
Total of
All Pages S
Type Number
Amount Date Comments
1 PVN VCO21795
IREF
2 AO AO 8_20_025
3
4
FIN AMOUNT SY Act Tem lace PGM LGR Object FY DIST LIQ
1 20 AOGCC 3046 20
2
3
5
Pur g u ri Title:
Purchasing Authority's Signature Telephone Number
i. .O. # and receiving agency name must appear on all invoices and documents relating to this purchase.
. The state is registered for tax free transactions under Chapter 32, IRS code. Registration number 92-73-0006 K. Items are for the exclusive use of the state and
not for resale.
DISTRIBUTION:
Division Fiscal/Original AO
Copies: Publisher (faxed), Division Fiscal, Receiving
Form: 02-901
Revised: 5/212020
Bernie Karl
K&K Recycling Inc.
P.O. Box 58055
Fairbanks, AK 99711
George Vaught, Jr.
P.O. Box 13557
Denver, CO 80201-3557
Gordon Severson
3201 Westmar Cir.
Anchorage, AK 99508-4336
Darwin Waldsmith
P.O. Box 39309
Ninilchik, AK 99639
Richard Wagner
P.O. Box 60868
Fairbanks, AK 99706