Carbonate platform evolution, Upper Paleozoic, southern Kazakhstan, USSR: A surface analog for the super giant Tengiz oil field western Kazakhstan

Conference · Thu Aug 01 00:00:00 EDT 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:5682168

Cook, H E ^[1]; Gatosvseey, Y A; Ponoeearenko, S B; Styehtsyehnka, I G; Styehtsyennka, V P; Zoran, A E ^[2]; Zhemchuzhnikov, V ^[3]

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1. Geological Survey, Menlo Park, CA (United States)
2. Ministry of Geology, Alma-Ata, Kazakhstan (USSR)
3. Inst. of Geological Science, Alma-Ata, Kazahhstan (USSR)

The Upper Devonian and Carboniferous carbonate platform and associated bioherms in the Bolshoi Karatau Mountains of southern Kazakhstan are similar to coeval carbonate platform and biohermal reservoir facies recently described in the Tengiz oil field of western Kazakhstan on the southeastern margin of the Pre-Caspian basin. Like Tengiz, the Bolshoi Karatau carbonate platform developed upon Devonian siliciclastics. The size of the two platforms are also similar as both the Bolshoi Karatau and the Tengiz carbonate platform are about 2-4 km thick and about 100 km wide. In the Bolshoi Karatau Mountains, the carbonate platform trends northwest-southeast, with the continental land mass to the east, and the open ocean platform margin toward Tengiz. Within the Bolshoi Karatau carbonate platform are several types of bioherms and carbonate sand bodies that may be analogous to the reservoir facies in the Tengiz oil field. Some of these facies exhibit karsting and solution voids which probably developed during sea level fluctuation. The Bolshoi Karatau carbonate sequence provides new data on the stratigraphic and sedimentologic evolution of Upper Devonian and Carboniferous carbonate platforms in southern Kazakhstan. Depositional, diagenetic, and reservoir models of this outcrop belt that are currently being developed should be useful for making subsurface predictions in the Tengiz area and other stratigraphically similar areas of the Soviet Union.

• OSTI ID: 5682168
• Report Number(s): CONF-910978--
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Vol. 75:8; ISSN 0149-1423; ISSN AABUD
• Country of Publication: United States
• Language: English

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DEVELOPED COUNTRIES
DEVONIAN PERIOD
DIAGENESIS
EUROPE
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC HISTORY
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LITHOLOGY
MINERAL RESOURCES
PALEOZOIC ERA
PETROLEUM DEPOSITS
PETROLEUM GEOLOGY
RESERVOIR ROCK
RESOURCES
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SEDIMENTARY ROCKS
STRATIGRAPHY
USSR