塔里木盆地富满油田F_(Ⅰ)16断裂发育特征及其对油气分布的影响  

Development characteristics of F_(Ⅰ)16 fault in Fuman oilfield of Tarim Basin and its influence on oil and gas distribution

作　　者：宋兴国 陈石[1,2] 杨明慧[1,2] 谢舟[3] 康鹏飞[3] 李婷[3] 陈九洲 彭梓俊 SONG Xingguo;CHEN Shi;YANG Minghui;XIE Zhou;KANG Pengfei;LI Ting;CHEN Jiuzhou;PENG Zijun(State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum(Beijing),Beijing 102249,China;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)油气资源与探测国家重点实验室,北京102249 [2]中国石油大学(北京)地球科学学院,北京102249 [3]中国石油塔里木油田公司,新疆库尔勒841000

出　　处：《岩性油气藏》2023年第3期99-109,共11页Lithologic Reservoirs

基　　金：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)资助。

摘　　要：利用三维地震、多层相干分析、振幅变化率、储层岩心分析及油气分布特征等资料,对塔里木盆地富满油田F_(Ⅰ)16断裂的空间展布特征、活动强度及期次进行了分析,并探讨了断裂的控储控藏作用。研究结果表明:①富满油田F_(Ⅰ)16断裂具有平面分段、垂向分层的特征。平面上由北往南可划分为3段,北段沿NE 10°展布,发育似马尾状构造;中段沿NE 20°展布,处于断裂走向转换部位,主要发育左阶斜列;南段沿NE 30°展布,具有强线性延伸特征,以右阶斜列为主;垂向上可划分为上寒武统底面以下的深部构造变形层和上寒武统底—奥陶系一间房组顶面浅部构造变形层,深层断裂活动较弱,分支发育较少,仅局部发育花状构造,浅层断裂活动强,花状构造普遍发育,且垂向上存在“多花叠置”及破碎带内地层同沉积的现象。②F_(Ⅰ)16断裂在富满油田的活动主要发生于加里东早期和加里东中期,加里东中期为主要活动期,强度较大且具有多幕次特征;活动强度在平面上表现为“北强南弱”,在垂向上表现出“浅层上拱、深层下降”的特征,浅层断裂活动更强烈。③研究区储层以断控缝洞型为主,受断裂破碎作用控制,平面上沿F_(Ⅰ)16断裂带呈条带状分布,垂向上具有深浅分层叠置的特征;受中寒武统膏盐岩的分布影响,F_(Ⅰ)16断裂带的油气分布具有“南油北气”的特征。The data of 3D seismic,multi-layer coherence analysis,amplitude change rate,reservoir core analysis and oil and gas distribution were used to analyze the spatial distribution characteristics,activity intensity and stages of F_(Ⅰ)16 fault in Fuman oilfield of Tarim Basin,and the control effects of fault on reservoir and accumulation were discussed.The results show that:(1)The F_(Ⅰ)16 fault in Fuman oilfield has the characteristics of plane segmentation and vertical stratification.On plane,it can be divided into three segments from north to south,the northern segment spreads along NE 10°and develops horsetail-like structure,the middle segment spreads along NE 20°and is in the transition position of fault strike,mainly develops left-order oblique row,and the southern segment spreads along NE 30°with strong linear extension characteristics,mainly right-order oblique sequence.Vertically,it can be divided into deep structural deformation layer below the bottom of Upper Cambrian(TЄ_(3))and the shallow structural deformation layer of the bottom of Upper Cambrian to the top of Ordovician Yijianfang Formation(TO3t).The deep fault activity is weak,the branch is less developed,only the local flower structure is developed.While the shallow fault activity is strong,the flower structure is generally developed,and there exists the phenomenon of“multi-flower superposition”and stratigraphic co-deposition in the fracture zone vertically.(2)The activities of F_(Ⅰ)16 fault in Fuman oilfield can be divided into two stages:early Caledonian and middle Caledonian.The middle Caledonian is the main active stage,with stronger intensity and multi-episode activation characteristics,and the activity intensity is strong in the north and weak in the south on plane,showing the characteristics of shallow upper arch and deep decline in the vertical direction,and the shallow fault activity is stronger.(3)The reservoirs in the study area are mainly fault-controlled fracture-cave reservoirs,controlled by fault fragmentation,distributed i

关 键 词：F_(Ⅰ)16断裂 走滑断裂 断裂控储 断裂控藏 缝洞型碳酸盐岩储层 上寒武统 奥陶系一间房组 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]