超深层碳酸盐岩储集层天然裂缝发育差异性--以塔里木盆地YUEM地区为例  

Differences in Natural Fracture Development in Ultra⁃Deep Carbonate Reservoirs:A Case Study of YUEM Area in Tarim Basin

作　　者：李辉 宁亚鑫[1,2] LI Hui;NING Yaxin(Sinopec,Petroleum Exploration and Production Research Institute,Beijing 102206,China;Sinopec,Key Laboratory of Marine Reservoir Development,Beijing 102206,China)

机构地区：[1]中国石化石油勘探开发研究院,北京102206 [2]中国石化海相油气藏开发重点实验室,北京102206

出　　处：《新疆石油地质》2025年第2期144-153,共10页Xinjiang Petroleum Geology

基　　金：国家自然科学基金(42402172)。

摘　　要：针对塔里木盆地YUEM地区碳酸盐岩储集层天然裂缝发育差异性,综合露头、岩心、薄片、测井、地震与生产动态数据,采用裂缝参数统计、地震敏感属性分析、构造应力场数值模拟等,明确裂缝发育特征、形成期次、成因以及空间分布差异性。研究区共发育3期3类裂缝:成岩裂缝、构造裂缝以及复合裂缝,裂缝的发育受构造、沉积及岩溶三重耦合控制,断层斜列叠覆区、主分支断层相交处、断层端部、藻屑滩相带及溶洞顶底部,是裂缝有利发育区。The carbonate reservoirs in the YUEM area of Tarim Basin show differences in natural fracture development.Using the data of outcrop,core,thin section,logging,seismic,and production performance,the differences of natural fractures in development characteris-tics,formation periods,genesis,and spatial distribution were clarified through fracture parameter statistics,sensitivity analysis of seismic attributes,and numerical simulation of tectonic stress field.Three types of fractures,i.e.diagenetic fractures,tectonic fractures,and com-posite fractures,corresponding to three development periods are found in the study area.The development of these fractures is controlled by the coupling of tectonics,sedimentation,and karstification.Favorable fracture development zones are identified in oblique-overlap zones,intersections of major and secondary faults,fault tips,algal reef facies belts,and tops and bottoms of karst caves.

关 键 词：塔里木盆地 碳酸盐岩 天然裂缝 差异性 构造 沉积 岩溶 

分 类 号：TE122.2[石油与天然气工程—油气勘探]