摘要
塔里木盆地顺北地区沿走滑断裂带展布的特深层断控缝洞型油气藏具有明显的分段性。通过三维地震断裂精细解释,综合钻井、测井、试采等资料对顺北1号断裂带走滑分段特征及分段内部储集体结构差异性及成因进行了研究,优选出有利的储集体类型。研究结果表明:(1)顺北1号断裂带由8个几何分段斜列叠置而成,每个几何分段形成一套独立的储集单元,单个储集单元的内部缝洞结构基本一致,但相邻储集单元的内部缝洞结构差异明显,且彼此间油气藏不连通。(2)几何分段的内部缝洞结构由走滑构造的活动强度控制,据此可以划分出内洞外缝结构、双重洞-缝结构与大型“均质”储集体等内部储集体结构类型,其中大型“均质”储集体发育多套缝洞体,缝洞尺寸大、数量多、内部连通性强,有利于油气富集。
The extra-deep fault-controlled fractured-vuggy reservoirs distributed along strike-slip fault zones in Shunbei area of Tarim Basin have obvious subsection differences.Through interpretation of 3D seismic data,combined with data of drilling,logging and production test,the characteristics of the strike-slip segments of Shunbei No.1 fault zone and the differences and causes of internal reservoir structure in different geometric segments were studied,and favorable reservoirs were selected.The results show that:(1)Shunbei No.1 fault zone is formed by the oblique superposition of eight geometric segments,each of which forms a set of independent reservoir units.The internal fracture cave structure of a single reservoir unit is basically the same,but the internal fracture cave structure of adjacent reservoir units is obviously different,and the oil and gas reservoirs are not connected with each other.(2)The internal fracture cavity structure of the geometric segments is controlled by the activity intensity of strike-slip structure,according to which,internal and external fracture structures,double hole fracture structures,large-scale homogeneous reservoirs and other internal reservoir structure can be divided.Among them,large-scale homogeneous reservoirs develop multiple sets of fracture cavity bodies,with large size,large number and strong internal connectivity,which is conducive to oil and gas enrichment.
作者
朱秀香
赵锐
赵腾
ZHU Xiuxiang;ZHAO Rui;ZHAO Teng(Research Institute of Exploration and Development,Northwest Oilfield Company,Sinopec,Urumqi 830011,China;Research Institute of Petroleum Exploration and Production,Sinopec,Beijing 100083,China;School of Energy,China University of Geosciences(Beijing),Beijing 100083,China)
出处
《岩性油气藏》
CAS
CSCD
北大核心
2023年第5期131-138,共8页
Lithologic Reservoirs
基金
中国石油化工股份有限公司科技部项目“顺北超深碳酸盐岩高产富集规律与目标评价”(编号:P21033-3)
国家自然科学基金项目“海相深层碳酸盐岩层系油气成藏机理与开发方法”(编号:U19B6003-02)联合资助。
关键词
特深层
走滑断层分段
储集体
油藏连通性
顺北1号带
塔里木盆地
extra-deep layer
strike-slip fault segment
reservoir
reservoir connectivity
Shunbei No.1 fault zone
Tarim Basin
作者简介
第一作者:朱秀香(1983-),女,硕士,高级工程师,主要从事塔里木盆地碳酸盐岩储层与油气成藏研究工作。地址:(830011)新疆维吾尔自治区乌鲁木齐市新市区长春南路466号。Email:179520361@qq.com;通信作者:赵锐(1988-),男,博士,高级工程师,主要从事碳酸盐岩油气田勘探开发及建模数模研究工作。Email:zhaorui2018@sinopec.com。
