塔里木盆地富满油田走滑断裂多核破碎带地震响应特征  

Seismic response characteristics of strike-slip fault multi-core damage zones in Fuman Oilfield,Tarim Basin

作　　者：梁鑫鑫 张银涛[2] 陈石[1] 谢舟[2] 周建勋[1] 康鹏飞[2] 陈九洲 彭梓俊 LIANG Xinxin;ZHANG Yintao;CHEN Shi;XIE Zhou;ZHOU Jianxun;KANG Pengfei;CHEN Jiuzhou;PENG Zijun(College of Geosciences,China University of Petroleum(Beijing),Beijing 102249,China;PetroChina Tarim Oilfield Company,Korla 841000,Xinjiang,China)

机构地区：[1]中国石油大学(北京)地球科学学院,北京102249 [2]中国石油塔里木油田公司,新疆库尔勒841000

出　　处：《岩性油气藏》2025年第2期127-138,共12页Lithologic Reservoirs

基　　金：国家自然科学基金“塔里木盆地中部走滑断裂分区差异发育规律与机制研究”(编号:42472186);国家自然科学基金企业创新发展联合基金项目“塔里木盆地超深层走滑断裂对碳酸盐岩缝洞储层的控制机理研究”(编号:U21-B2062)联合资助。

摘　　要：综合运用野外露头、地震属性、测井以及生产数据等资料,对塔里木盆地富满油田走滑断裂破碎带内部结构进行了研究,并探讨了破碎带的控储作用。研究结果表明:①塔里木盆地皮羌断裂是一条左旋撕裂走滑断层,根据露头变形程度可将破碎带结构分为断层泥、大节理发育区、角砾岩、碎裂岩和裂缝发育带5类。皮羌断裂是由多条次级断层组成的复杂走滑断裂带,发育多核断层破碎带,断层核由碎裂岩和断层泥构成。②富满油田走滑断裂与野外露头断裂发育模式相同,为多核断层破碎带模式。不同应力机制下的走滑断裂破碎带结构差异明显:平移段破碎带宽度最小,平均宽度为368.50m,破碎带主要发育裂缝;张扭段破碎带宽度大,平均宽度为1174.00m,破碎作用主要发生在边界断裂带内部,裂缝和溶洞为主要结构;压扭段破碎带宽度较大,平均宽度为951.25m,破碎作用不仅在断裂带内部发生,而且对断裂带外围有一定影响,裂缝发育,溶蚀孔洞欠发育。③研究区走滑断裂活动强度与破碎带规模呈正相关关系,断裂活动性越强则破碎带规模越大,储集体越发育;单井产能不仅受储集体规模控制,还受断裂应力环境影响,张扭段、平移段的产能和储集体规模带呈正相关关系,压扭段产能与储集体规模没有明显的相关性。Comprehensively using of outcrop,seismic attributes,logging and production data,the internal structure of the strike-slip fault damage zone in the Fuman Oilfield of Tarim Basin was studied,and the reservoir control function of the damage zone was discussed.The results show that:(1)The Piqiang fault in Tarim Basin is a leftlateral tear strike-slip fault,and the damage zone structure can be divided into five types based on the degree of outcrop deformation:fault gouge,large joint development area,breccia,cataclasite,and fracture development zone.The Piqiang fault is a complex strike-slip fault zone composed of multiple secondary faults,with a multicore fault damage zone,and the fault core is composed of cataclasite and fault gouge.(2)The strike-slip fault of Fuman Oilfield follows the same outcrop development model,which is a multi-core fault damage zone model.The structure of the strike-slip fault damage zone under different stress mechanisms is significantly different:the width of the strike-slip segment damage zone is the smallest,with an average width of 368.50 m,and the damage zone mainly develops fractures;the width of the pull-apart segment damage zone is large,with an average width of 1174.00 m,and fracturing mainly occurs within the boundary fault zone,characterized by fractures and karst caves;the width of the push-up segment damage zone is relatively large,with an average width of 951.25 m,and fracturing not only occurs within the fault zone but also has a certain impact on the surrounding area of the fault zone,with developed fractures and underdeveloped karst caves.(3)The activity intensity of strike-slip faults is positively correlated with the scale of the damage zone in the study area;the stronger the fault activity,the larger the scale of the damage zone,and the more developed the reservoir.The single well production capacity is not only controlled by the scale of the reservoir but also influenced by the stress environment of the fault.The production capacity and the scale of the reservoir in the p

关 键 词：储集体 地震属性 破碎带结构 单核破碎带 多核破碎带 走滑断裂 皮羌断裂 富满油田 塔里木盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探] P618.13[天文地球—矿床学]