塔里木盆地走滑断裂分段性及控藏作用——以F_(Ⅰ)17断裂带为例  

Segmentation of Strike-Slip Faults and Its Controls on Hydrocarbon Accumulation in Tarim Basin:A Case Study of F_(Ⅰ)17 Strike-Slip Fault Zone

作　　者：熊昶 沈春光 赵星星 赵龙飞 李盛谦 周杰 潘天凑 XIONG Chang;SHEN Chunguang;ZHAO Xingxing;ZHAO Longfei;LI Shengqian;ZHOU Jie;PAN Tiancou(PetroChina Tarim Oilfield Company,Oil and Gas Field Productivity Construction Division,Xinjiang 841099,China;PetroChina Tarim Oilfield Company,Research Institute of Exploration and Development,Korla,Xinjiang 841099,China;School of Resources,China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China;R&D Center for Ultra-Deep Complex Reservior Exploration and Development,CNPC,Korla,Xinjiang,841000,China;Xinjiang Engineering Research Center for Ultra-deep Complex Reservoir Exploration and Development,Korla,Xinjiang 841000,China)

机构地区：[1]中国石油塔里木油田分公司油气田产能建设事业部,新疆库尔勒841099 [2]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841099 [3]中国地质大学(武汉)资源学院,武汉430074 [4]中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心,新疆库尔勒841000 [5]新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆库尔勒841000

出　　处：《新疆石油地质》2024年第4期417-424,共8页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2016ZX05051)。

摘　　要：塔里木盆地奥陶系碳酸盐岩发育走滑断裂断控特大型油气田,但沿走滑断裂带碳酸盐岩储集层与油气分布异常复杂,制约了井位部署与油气高效开发。以富油气F_(Ⅰ)17走滑断裂带为例,利用高精度地震资料,对F_(Ⅰ)17走滑断裂带开展精细构造解析,结合岩心、测井及生产资料分析,对其储集层分布及控藏特征进行研究。结果表明:F_(Ⅰ)17走滑断裂带从南至北依次可划分为平行雁列段、线性段、叠覆段、斜列叠覆段和马尾段5个区段;走滑断裂的分布、规模与类型控制了储集层分布与发育程度,从平行雁列段至斜列叠覆段断裂发育强度增大,储集层规模增大且连通性变好,北部马尾段储集层沿分支断裂分布,连通性差;F_(Ⅰ)17走滑断裂带断控油气藏可划分为线性定容型、连接叠覆型、叠覆断垒型和尾段分散型4类;走滑断裂的类型与规模控制了油气藏类型与油气富集程度,针对不同类型的断控油气藏,需要采取不同的钻探措施。In the Ordovician carbonate rocks in the Tarim basin,there are extra-large oil and gas oilfields controlled by strike-slip faults.However,the distributions of carbonate reservoirs and hydrocarbons along the fault zones is extraordinarily complex,posing challenges for well deployment and efficient petroleum development.Taking the F_(Ⅰ)17 hydrocarbon-rich strike-slip fault zone as an example,a fine structural analysis was conducted by using high-resolution seismic data.Coupling with core,logging and production data,the reservoir distribution and its controls on hydrocarbon accumulation were investigated.The results show that the F_(Ⅰ)17 strike-slip fault zone can be divided into five segments from south to north:parallel en echelon segment,linear segment,superimposed segment,oblique superimposed segment,and horse-tail segment.The distribution,scale,and type of strike-slip faults govern the reservoir distribution and development.From the parallel en echelon segment to the oblique superimposed segment,the fault development intensifies,resulting in larger and more interconnected reservoirs.Conversely,the horse-tail segment in the north features reservoirs distributed along branch faults with poor connectivity.The fault-controlled hydrocarbon reservoirs in the F_(Ⅰ)17 strike-slip fault zone can be classified into four types:linear fixed-volume,connected superimposed,superimposed fault-block,and tail-end dispersed.The type and scale of strike-slip faults control the reservoir types and hydrocarbon enrichment levels,necessitating targeted drilling strategies for different fault-controlled reservoir types.

关 键 词：塔里木盆地 奥陶系 碳酸盐岩 走滑断裂 断裂分段 断裂控储 断裂控藏 

分 类 号：TE122[石油与天然气工程—油气勘探]