Development characteristics of the fault system and its control on basin structure, Bodong Sag, East China
Development characteristics of the fault system and its control on basin structure, Bodong Sag, East China作者机构:China University of Petroleum Tianjin Technical Department CNOOC
出 版 物:《Petroleum Science》 (石油科学(英文版))
年 卷 期:2013年第10卷第4期
页 面:450-457页
核心收录:
学科分类:070904[理学-构造地质学] 081803[工学-地质工程] 0709[理学-地质学] 07[理学] 08[工学] 0818[工学-地质资源与地质工程]
主 题:Fault system basin structure Bodong area
摘 要:The Bodong Sag,located in the Bohai Sea,offshore China,is one of the most petroliferous basins in *** on three dimensional seismic reflection data and time slice data,we analyze the fault system of the Bodong area in detail,establish the fault structure pattern of different types and summarize the distribution of the fault *** is concluded that the development characteristics of the Cenozoic fault system are in accordance with the dextral stress field of the Tanlu Fault,which displayed a brush structure with NNE strike-slip faults as its principal faults,NE-trending extensional faults as secondary faults and EW-trending faults as minor *** can be divided into (1) strike-slip type,(2) extensional type,(3) strike-slip extensional type and (4) extensional strike-slip *** spatial structures of different faults have obvious differences because of the fault properties and activity *** fault system at different stages shows tremendous differences because of the transition of the Tanlu Fault from sinistral strike-slip to dextral strike-slip,the transition between extension and strike-slip,and the transition from mantle upwelling to thermal *** to the controlling effect of faults on basin structure,the Cenozoic basin experienced four evolutionary stages,(a) transition stage from sinistral strike-slip to dextral strike-slip,(b) strike-slip extensional faulted stage,(c) extensional strike-slip faulted stage and (d) strike-slip depression *** identification of temporal and spatial differences of faults could be used as a significant guideline for oil and gas exploration in the Bodong area.