M地区侏罗系层序地层及圈闭成藏研究  

Jurassic Sequence Strata and Trap Accumulation in M Region

作　　者：杨建房 赵建章 杨志东[2] 刘翠风 陈旭 

机构地区：[1]中国石油东方地球物理公司,河北涿州072750 [2]中国石油新疆油田分公司,新疆克拉玛依834000

出　　处：《特种油气藏》2016年第4期51-54,153,共4页Special Oil & Gas Reservoirs

基　　金：陕西省教育厅科研计划项目"坳陷湖盆事件与沉积耦合关系研究"(2013JK0844)

摘　　要：针对M地区岩性圈闭发育及圈闭成藏认识不清的问题,运用层序地层学研究思路,采用井震结合方法,开展层序地层学及圈闭成藏研究。研究表明:M地区侏罗系地层可划分为3个三级层序,根据沙泥配置关系将该区侏罗系八道湾组砂岩与三工河组泥岩、西山窑组砂岩与头屯河组泥岩、齐古组砂岩与白垩系清水河组泥岩划分为3套储盖组合,并依据断层侧向砂泥岩配置关系分析,认为侏罗系湖侵体系域早期发育的薄层席状砂体成藏条件优越,是该区岩性油藏最有利的发育区,并在此基础上建立了适合该区的圈闭成藏模式。该研究思路对寻找岩性-构造复合油气藏及岩性油气藏具有借鉴意义。M region is characterized by well-developed lithologic traps and uncertain understanding of trap accumulation. Sequence stratigraphy and well-seismic combination are used to study the stratigraphic sequence and trap accumulation in M region. Research shows that based on the 3 classified third-order sequences of Jurassic strata in this region,the Jurassic Badaowan sandstone formation and Sangonghe mudstone formation,Xishanyao sandstone formation and Toutunhe mudstone formation,and Qigu sandstone formation and cretaceous Qingshuihe mudstone formation are classified into 3 reservoir-caprock assemblages according to their sandstone-mudstone configurations. The analysis of fault lateral sandstone- mudstone configurations shows that the thin sheet sandbodies develop in the early stage of Jurassictransgressive system tract indicate favorable hydrocarbon accumulation conditions and are considered as the most favorable area for the development of lithologic reservoir. The corresponding hydrocarbon accumulation modes for this area are established and well applied in practice. This research could provide certain reference for the discovery of lithologic-structural and lithologic hydrocarbon reservoirs.

关 键 词：储盖组合 岩性圈闭 圈闭成藏模式 层序地层学 

分 类 号：TE122.1[石油与天然气工程—油气勘探]