车镇凹陷北部陡坡带下古生界油气分布控制因素  

THE CONTROL FACTORS OF HYDROCARBON DIS- TRIBUTING OF THE LOWER PALAEOZOIC IN THE NORTHERN ABRUPT SLOPE OF CHEZHEN SAG

作　　者：张家震[1] 马士忠[2] 王新峰[3] 毕彩芹[3] 曹淑敏[3] 

机构地区：[1]中国科学院广州地球化学研究所,广东广州510640 [2]中国地质大学地球科学与资源学院,北京100083 [3]胜利油田有限公司地质科学研究院,山东东营257015

出　　处：《西南石油学院学报》2005年第4期5-8,共4页Journal of Southwest Petroleum Institute

基　　金：中国石化集团公司"十五"重点科技攻关项目(P02004)

摘　　要：受埕南断层及其派生断层长期不均衡活动的影响,车镇凹陷北部陡坡带发育13个下古生界滑脱潜山,具有形成潜山风化壳油藏与潜山内幕油藏的有利条件,但油气分布规律十分复杂。通过区域地质特征、储层特征和含油气特征研究,认为车镇凹陷北部陡坡带下古生界的油气分布受多种因素控制,生油洼陷烃源岩的最大埋深控制油藏的含油底界,埕南派生断层控制油藏的平面分布,碳酸盐岩储层的非均质性控制油藏的垂向分布与富集高产。As a result of the imbalanced activities of Chengnan fault and its secondary fault, there are 13 decollement buried hills in the the Northern abrupt slope of Chezhen sag, which has favorable condition to form the weathering crust and interior reservoirs, whereas the distribution rule of hydrocarbon is quite complicated. The areal geology, reservoir rock and oil-bearing character of the Northern abrupt slope of Chezhen sag are systematically analyzed in this paper, and it is pointed out that the hydrocarbon distributing of the Lower Palaeozoic is controlled by multiple factors. The oil-bearing bottom of buried hill reservoirs is controlled by the most buried depth of source rocks of the generative sub-sags , the horizontal distributing of oil pools is controlled by the imbalanced activities of its secondary fault, and the section dis- tributing and the enrichment and high yield of oil pools are controlled by the developing degree of reservoir rock.

关 键 词：车镇凹陷 北部陡坡带 下古生界 埕南派生断层 非均质储层 

分 类 号：TE112[石油与天然气工程—油气勘探]