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塔里木盆地东南区可划分为塔东南坳陷和塔东南隆起 2个构造单元。塔东南坳陷侏罗纪为一箕状断陷 ,形成民丰且末若羌 3个沉积沉降中心 ,具南断北超的特点 ,阿尔金山为主要物源区 ,塔东南隆起为次要物源区。油气主要富集在侏罗系储层中 ,煤系及深湖相泥岩是生油岩的主要发育层位 ,储层具低孔低渗、成分成熟度和结构成熟度均低的特征 ,溶孔和裂隙为主要储集空间。综合分析后认为 ,塔东南坳陷具备形成中、小油气田的条件 ,应以寻找背斜断块圈闭为主 ,罗布庄隆起与北民丰隆起上的风化壳、民丰环形构造和安迪尔环形构造、于田普鲁与且末其格勒克向盆地的第一排构造带山前低台阶带为有利勘探区块
The southeastern Tarim Basin can be divided into two structural units: the southeastern depression and the southeast uplift. Jurassic in the southeast depression of the tower is a half-graben-shaped faulted depression, forming three sedimentary centers of Minfeng and Meizuo. They are characterized by the northeastern fault and the Altun Mountains as the main source region. The southeastern part of the tower is a secondary matter Source area. Oil and gas are mainly enriched in Jurassic reservoirs. Coal measures and deep-lacustrine mudstones are the major developmental layers of the source rocks. The reservoirs are characterized by low porosity and low permeability, low compositional maturity and low structural maturity Pores and crevices are the main reservoir space. After a comprehensive analysis, it is concluded that the conditions for the formation of medium and small oil and gas fields in the southeastern part of the Tadasan Depression should be dominated by the search for anticline block traps. The weathering crust, Minfeng ring structure and Andy Erhuan tectonics, the first row of the Yutian Pluto and Qiekegeluk basin to the basin with the piedmont low step belt for the favorable prospecting block