吐鲁番坳陷南部斜坡带油气成藏条件分析

THE HYDROCARBON ACCUMULATION CONDITIONS OF THE SOUTHERN SLOPES IN TURPAN DEPRESSION

吐哈盆地吐鲁番坳陷南部斜坡带前期油气勘探开发主要集中在胜南次凹的北部,相继发现了多个油气田和含油气构造,根据邻区勘探经验及目前该区的勘探资料,以现代油气地质理论为指导,通过解剖北部的胜南、神泉油田侏罗系油气藏和火8井区块三叠系油气藏,系统分析了南部斜坡带烃源岩、储集层、盖层及圈闭等油气藏形成的基本要素。研究表明,南部斜坡带勘探前景广阔,存在多个构造"鼻隆带",成藏条件优越,下一步勘探方向应区域扩展构造"鼻隆带"构造圈闭油气藏的同时,积极探索水西沟群、小泉沟群地层-岩性油气藏。

The early oil&gas exploration and development in southern slopes of Turpan Depression mainly focused on the northern part of the Shennan sub-sag,which have been found a number of oil-gas fields and oil-gas structures,according to the adjacent area exploration experience and exploration data,and gasgeological theory as a guide,by anatomical Shennan,Shenquan Jurassic oilfield and huo-8 Triassic oil-gas reservoirs,systematic analysis of the basic elements for hydrocarbon system formation,as hydrocarbon rocks,reservoirs,caps,traps,It's shown that there is more than one constructor nose uplift belt accumulation in favorable conditions,which has vast exploration prospects,the next exploration should be directed to the regional expansion structure nose uplift with structural trap oil and gas reservoirs,while actively exploring shuixigou group,xiaoquangou group strata-lithologic reservoirs.