物探与化探2024，Vol.48Issue(6)：1588-1598,11.DOI:10.11720/wtyht.2024.0015
塔里木盆地二八台地区走滑断裂体系研究
Strike-slip fault system in the Erbatai area,Tarim Basin
摘要
Abstract
In structural confirmation for oil and gas exploration,ascertaining the distributions of faults remains a challenge and priority in seismic data interpretation.The most complex fault combinations can be observed in strike-slip fault systems.This study investigated the Erbatai area that hosts a complex Luntai strike-slip fault system in the Tarim Basin.First,the background noise was reduced using the dip angle plus azimuth scanning and the structure-oriented filtering.Then,a multi-level nesting technology was developed by in-tegrating attributes like coherence cube,ant-tracking attribute,and maximum likelihood.Using the technology,this study identified and statistically analyzed 41 faults in the Erbatai area for their geometric development characteristics,including strike,dip,dip angle,and fault throw.Furthermore,this study determined the complex fault combinations within the strike-slip fault system.The findings in-dicate that the Erbatai area develops a dominant nearly EW-trending strike-slip fault zone and a NE-trending secondary fault zone.These faults are extensional fractures caused by left-lateral torsion,manifested as right-stepping en echelon normal faults.Overall,this study can be referenced for assessing structural hydrocarbon reservoirs in the Erbatai area.关键词
走滑断裂/地震解释/构造导向滤波/塔里木盆地/二八台地区Key words
strike-slip fault/seismic interpretation/structure-oriented filtering/Tarim Basin/Erbatai area分类
天文与地球科学引用本文复制引用
张珈畅,李涛,梁宏刚,费娥,孙致远,岳彤..塔里木盆地二八台地区走滑断裂体系研究[J].物探与化探,2024,48(6):1588-1598,11.基金项目
中国石化西北油田分公司勘探开发研究院项目(KY2021-S-018) （KY2021-S-018）
