孤北洼陷沙河街组地质特征及成藏模式研究  

Geologic feature and reservoir forming pattern of Shahejie formation in Gubei sag

作　　者：庄文山[1] 方旭庆[1] 阳显文[1] 

机构地区：[1]中石化胜利油田股份有限公司,山东东营257015

出　　处：《特种油气藏》2003年第2期34-37,共4页Special Oil & Gas Reservoirs

摘　　要：本文从构造入手 ,对孤北洼陷沙河街组地质特征及成藏模式进行了研究。认为 :该区基本构造格架可划分为两个正向构造单元和两个负向构造单元 ;该区沙河街组沉积相可划分为4类沉积体系 ,并指出了各类沉积体系的分布范围 ;沉积体系控制了储层的展布 ,影响着隐蔽油藏的分布 ;构造背景、断层、沉积相带是该区隐蔽油藏的主要控制因素 ,并据此建立了隐蔽油藏的成藏模式 。Starting from structure, this paper studies the geologic feature and reservoir forming pattern of Shahejie formation in Gubei sag. The result is that, the structure in this area can be divided into two positive and two negative elements; the sedimentary facies of Shahejie formation can be divided into four systems, and the distribution of each system is also pointed out; it was the sedimentary systems that controlled the distribution of reservoirs; major controlling factors of subtle reservoir in this area were tectonic setting, fault and sedimentary facies; the forming pattern of subtle reservoir has been set up on the above basis, and exploration direction is pointed out.

关 键 词：孤北洼陷 沙河街组 地质特征 成藏模式 研究 隐蔽油藏 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]