Strike-Slip Faults and Their Controls on Hydrocarbon Reservoir in Middle Part of Northern Slope of Tazhong Area, Tarim Basin

Abstract

Abstract: The structural characteristics of strike-slip fault in the northern slope of Tazhong area are analyzed. The controls of strike-slip faults on hydrocarbon reservoir are investigated. Study shows that there were five-period activities of the strike-slip faults in the middle of it since the Ordovician. The formation and evolution of the strike-slip faults control the vertical depth and lateral distribution pattern of the carbonate reservoir of the Lower Ordovician. The multistage active strike-slip faults serve as good channels for hydrocarbon vertical migration. In this setting, the development of carbonate reservoir is subjected to damage of some small faults, so the local structural highs at intersections of long-term active strike-slip faults and thrust faults will be the favorable areas of hydrocarbon migration and accumulation.

Key words: Tarim basin, Tazhong area, strike-slip fault, carbonate rock, reservoir modification, oil-gas migration channel

CLC Number:

TE111

ZHANG Yan-ping, YANG Hai-jun, LV Xiu-xiang, LIU Hu, GAO Yan-fang, YU Hong-feng. Strike-Slip Faults and Their Controls on Hydrocarbon Reservoir in Middle Part of Northern Slope of Tazhong Area, Tarim Basin[J]. Xinjiang Petroleum Geology, 2011, 32(4): 342-344.

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