尕斯库勒砂西区块N_1—N_2~1油藏沉积相特征研究  

REARCH ON THE SEDIMENTARY FACIES FEATURE OF SHA XI N_1—N_2~1 RESERVOIR IN GASIKULE OILFIELD

作　　者：袁霞[1] 牟中海[1] 马力宁[2] 罗文军[1] 冉丽君[1] 

机构地区：[1]西南石油大学资源环境学院,四川成都610500 [2]青海油田,甘肃敦煌36202

出　　处：《新疆地质》2007年第4期394-398,共5页Xinjiang Geology

摘　　要：通过对尕斯库勒砂西区块N1—N21油藏Ⅺ、Ⅹ—Ⅸ、Ⅷ—Ⅵ、Ⅴ—Ⅰ油层组段沉积相特征、沉积体系展布及演化规律的综合分析,认为砂西区块N1—N21油藏从下向上发育滨浅湖亚相、辫状河三角洲前缘-滨浅湖亚相、辫状河三角洲平原-前缘亚相,整体为一套反旋回沉积.在此基础上分析了砂西区块N1—N21油藏沉积相与油气分布的关系.结果表明,分布于Ⅷ—Ⅵ油层组的辫状河三角洲分流河道及构造高部位的河口坝、远砂坝微相砂体为该地区的主要储集体,Ⅴ—Ⅰ油层组发育的泛滥平原微相泥岩为该区的区域性盖层.Through the multidisciplinary analysis the sedimentary facies feature and evolution history of Sha Xi N1-N^12 reservoir in Gasikule oilfield Ⅺ、Ⅹ-Ⅸ、Ⅷ-Ⅵ、Ⅴ-Ⅰ oil layer group,finger that the precipitation facie of Sha Xi N1-N^12 reservoir successively develop offshore and shallow water.anastomosing stream delta front-offshore and shallow water.anastomosing stream delta plain-front subfacies is a suite of revolt sedimentation, based on this research, analyse the relationship between distribution of oil and reservoir sedimentary facies, result show the main accumulate block in Ⅷ-Ⅵ oil layer group is mouth bar ,distal bar that allocation at the top of structure distributary channel and anastomosed stream delta, Ⅴ-Ⅰ oil layer group is developed.flood plain microfacies mudstone is regional capping formation.

关 键 词：砂西区块 N1-N^12油藏 沉积体系 油气分布 

分 类 号：P618.130.8[天文地球—矿床学]