辽河盆地东部凹陷西斜坡南段断阶带油气运聚模式  

Oil and gas transportation and accumulation pattern——A case study in the southern section of western slope of Eastern Depression in Liaohe Basin

作　　者：李军生[1] 庞维奇[1] 梁战松[2] 徐春阳[2] 

机构地区：[1]中国石油大学(北京)资源与信息学院,北京昌平102249 [2]中石油辽河油田分公司勘探开发研究院,辽宁盘锦124010

出　　处：《大庆石油学院学报》2007年第5期1-3,共3页Journal of Daqing Petroleum Institute

基　　金：国家"十五"重点科技攻关项目(2001BA605A-08-04)

摘　　要：研究了辽河盆地东部凹陷西斜坡南段构造特征及油气成藏史,分析其油气运聚模式.结果表明:在各级断层的控制下,该区构造可分为洼陷和斜坡2部分,其中斜坡又可进一步分为下台阶、中台阶和上台阶;随着构造运动的发展,该区各构造带的油气藏逐步形成;该区为一典型的斜坡断阶构造,发育多种类型的油气藏,在构造条件的控制下,这些油气藏在不同的层位、不同的构造部位分布;洼陷生成油气,从洼陷到下台阶、中台阶、上台阶有油气藏发育;由上台阶到洼陷,成藏层位由老变新;随着断层的渐次封闭,油气从上台阶到洼陷依次成藏.The study has been made of the oil and gas transportation and accumulation patterns based on the structure features and oil and gas reservoir evolution history of the southern section of the western slope of Eastern Depression of Liaohe Oilfield. The research has found that under the control of different level faults, the area can be divided into two parts, i. e., the depression area and the slope area, and the slope area is composed of lower step, middle step and upper step. As the structure movement develops, the oil and gas reservoirs in different structure belts in the area have gradually formed. The area is a typical slope fault step structure with multi-type oil and gas reservoir developed. Under the control of structural conditions, the reservoirs are developed in different formations and different structures. The depressions are the key places for oil and gas accumulation, so oil and gas reservoirs accumulates widely from depression area to lower step, middle step and upper step. From upper step to the depression area, the reservoir forming formations changes from old to new. As the faults get closed gradually, the oil and gas accumulates from upper step to the depression area successively.

关 键 词：斜坡断阶带 油气藏 油气运聚模式 圈闭 辽河盆地 

分 类 号：TE122.1[石油与天然气工程—油气勘探]