Stratification and Segmentation Characteristics and Tectonic Evolution of Shunbei No.5 Strike-Slip Fault Zone in Tarim Basin

doi:10.7657/XJPG20230105

Abstract

Abstract:

The ultra-deep fault-karst reservoirs in the Tarim basin are mainly distributed along strike-slip fault zones，and the oil and gas exploration effects are poor in the areas far away from fault zones，that is，the activity scale of strike-slip fault zones control the scale of hydrocarbon accumulation. The Shunbei No.5 strike-slip fault zone is a super-large strike-slip fault zone，which is characterized by deep burial，complex internal structure，and evident stratification and segmentation. Based on high-quality 3D seismic data，the geometry，kinematics and dynamics of the Shunbei No.5 strike-slip fault zone were systematically analyzed. It is recognized that the Shunbei No.5 strike-slip fault zone is evidently layered (including 5 structural layers)，and also segmented，with the southern and northern segments having different kinematic characteristics. The southern segment has experienced 5 stages of evolution，and the northern segment has experienced 4 stages of evolution.

Key words: Tarim basin, Shunbei No.5 strike-slip fault zone, ultra-deep layer, fault-karst reservoir, structural layer, segmented activity, multi-layered structure, multi-stage movement

CLC Number:

TE121

CHEN Ping, NENG Yuan, WU Xian, HUANG Cheng, WANG Laiyuan, GUO Man. Stratification and Segmentation Characteristics and Tectonic Evolution of Shunbei No.5 Strike-Slip Fault Zone in Tarim Basin[J]. Xinjiang Petroleum Geology, 2023, 44(1): 33-42.

Figures/Tables 10

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