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HomeMy WebLinkAboutGMC Data Report No. 032~00TAGE 7,280 7,410 7,450 7,550 7,680 7,77O 7,830 7,930 8,O5O 8,150 8,240 8,310 8,4OO 8,460 8,560 8,660 8,75O 8,800 8,920 9,020 9,055 9,160 9,230 9,320 9,440 9,540 9,630 9,75O 9,820 9,940 10,020 10,060 10,180 10,300 TYPE M M M M M M M S S S? M? M? M? S M? M M M M M A? M A M M M, M M M M M M M M STAGE 4.0 4.0 .4.0 4.0 4.0 4.0 4.0 3.5 4.0 4.0 4.0 4.0 4.0 3.5 4.0 4.0 4.0 ~.0 ~.0 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 4.0 4.0 4.0 3.5 3.5 3.5 FOOTAGE TYPE STAGE 10,390 M 3.5 10,470 M 3.5 10,545 M 3.5 10,640 A 4.0 10,740 A 4.O 10,830 M 4.0 10,920 M 4.0 11,000 M 4.0 11,090 M 4.0 ll,180 M 4.O 11,270 M 4.O 11,305 M 4.O ll,410 M 4.O 11,510 M .4.0 11,620 M .4.O 11,705 M 4.0 11,800 M 4.0 11,880 M .4.0 11,920 M 4.5 12,002 M 4.5 KEY S = Structured kerogen M = Mixed kerogen A = Amorphous kerogen I = Indeterminate 11 NO¥ ~: lq83 SUMMARY OF VITRINITE REFLECTANCE DATA FROM LOCAL[TT TENNECO MIDDLETON .ALASKA DEPTH IN FY 1710 3173 q636 6099 902q 10q87 [SLANO 7121 · SRHP DEPTH 881S.00 8905.00 9105.00 9215.00 9395.00 9q85.00 9615.00 9730.00 98q0.00 9960.00 .OOqO. O0 10165.00 10255~00 103q5.00 I 0 ! 5 2,0 5 PERCENT REFLECTANCE OF VITRINITE 0 · ;POP.! 10817.50 10922.50 11017.50 ~lllOS. O0 11290.00 11q95.00 8qS.O0 '11935.00 1725.00 2280.00 2q80.00 3335.00 3580.00 3697°50 3820.00 q125.00 q360.00 qqq5.00 q715.00 51qO.O0 $260.00 5qqO.O0 58q0.00 6q25.00 7355. O0 7535. O0 7815. O0 8035.00 8225.00 :~UMMRR¥ OF V. ITRINITE. REFLECTANCE DATA .'TENNECO MIOOLETON 'ISLAND ' . ALASKA · DEPTH :IN 'FT 8800 ' .: ~ . '- · · · .. '.'9';~'~i~'::". ~ " "'"':~'~'-.:'?-:' .- '~ '.:. ii:; :;?:: ::,: .:'.... ...- . · .., -.~ ,~. · . ., · . '. -;..i ~,~": .. ' .'. ".,-,.-. ~' .:::..:.-.:-~ ? · ~i-:.. i.: ,;~.~,,:~ ~:: ::~.:.:.,,.:,.~ ... '... '-- "' : .......-......:' ...'... - ,t., ~. ';.: .:--- -';~'; .._.~,.'-.,'~;,..~ -;L"::. ' . '.L~...:¢?:5,~t'.TM. ...:. · ,; .. ·. · . ....... .. . . , ....,- .... ~..~ .... ;-;... ;':: ... -"-:'~-~-':'.'--.~_'~._'..! ::'. "- .. . : : ... .. ...:....... ,:3. " . .::::.-=.'....'.?.~;~....;:~: ~:'.?:." :. . .. ,...,,..,, .., - ...... . . ... ........ ...~..~;;...~.,,,:~.?,.f;.,.~.-. :;-.. :.-... - ~:-..~....-.::~..z....i.~::-::J~. "" ~ ... ~' · -.- .,~....~.i.~..:~ .(~ .. : . -. ..- :.'-~,',-,&...:,c:,-.~,:.;~..,j ,~..;- · ., . ..'.;.~.: ,,./-~.;:.:.;.': :.:. :,'; .-. ;'"' ::'::z"~::'i :' ' ' ::.' :C..'.'~.:?' .: .' .~ ' '~'~: :,"i:"'~'.-.';'(.' '."' ' ' ~ ' --.'-~,~,'.*.'~"~ .'-I",-'. .' '.. ' ~ '., ?.-!..?!~.:fl:-' 1 1 SO0 FROH LOCREITT 7121... ![950 ! 0 I 0 2 5 PERCENT REFLECTANCE OF VITRINITE SRHP i 1 0 :POP. ! 8615.00 8905.00 8105.00 9215.00 9395.00 9~85.00 ·96[5.06 97'30.06 , .~ "~...- .~... '98.~0'.00 ::~'~- [o~63.oo to~'ss;'~o' 'tOass'.oo 10527.50 ~o629..0o 10725.00' 10817.50 10922.50 11017.50 lllOS.O0 11290.00 11q95.00 11582.50 18q5.00 1935.00 November 29, 1983 J. Maynard 1228 AB TENNECO MIDDLETON ISLAND, ALASKA Vitrinite and visual kerogen slides were prepared for the interval of 1,700-11,950 feet, to determine the levels of thermal maturity and compare these to previous-visual estimates of maturity. The data can been seen on Attachment 1 in strip chart form. Levels of maturity ranged from pregeneration to early peak oil genera- tion, or a visual level of 4. Kerogen type is at best mxed and can be seen on Attachment 2. Reflectance levels of approximately 0.60-0.65% Ro are reached at the base of the well. It is doubtful that source rocks at this level of maturity would be capable of significant expul- sion; however, addition.al thermal input (depth or heat) could explain the oil seeps found in the area. Tom Hemler TH/df Attachments VISUAL THERMAL MATURATION AND KEROGEN TYPES OF MIDDLETON ISLAND #1 FOOTAGE TYPE 1,680 M 1,710 M 1,860 M 1,950 M 1,980 M 2,040 M 2,130 M 2,220 M 2,300 M 2,400 M 2,490 M 2,580 S' 2,670 M 2,700 M 2,820 M 2,940 M 3,030 M 3,120 M 3,210 M 3,300 M 3,355 M 3,475 M 3,515 M 3,605 M 3,720 M 3,840 M 3,930 M 4,020 M 4,110 M 4,160 M 4,240 M STAGE 2.0 .. 2.0 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 .FOOTAGE ~ 4,380 ~'"'~ 4,470 ::?~-'-4,560 · , 4,640 _ '4,740 . ,4,820 .4,920 '~i:.~'5,040 5, lO0 5,160 . 5,280 5,380 5,460 5,540 -~.'~',.5,~740 5,82O 5,900 6,000 6,080 6,260 6,360 6,440 6,520 6,620 6,680 6,810 6,900 7,060 7,100 7,240 TYPE M M M M M M M, M, M M M M S? M M M M, M M M M M M M M M M M M M STAGE :3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 '3.5 · 3.5 3.0 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 4.0 4.0 4.0 4.0 · C °~oo?° · NQrton' · ....'Anchorage ~,' ... .,-~ ~:.,. · ~ ', ~' .' ' '". '.? ~ ~.'.~ '. :.c-. ' ": ,...... ..,.~ ..... ... ..,.~~ Z.... :, ~;~. . ~%.~z · ~~'"'~' Alaska ~ 0 200 400 600 km LOCATION OF TENNECO MIDDLETOtl ISLAND -~1