砂岩透镜体成藏的成岩控制机理——以济阳坳陷牛庄洼陷沙三中亚段为例  

Diagenesis controlling mechanism on the hydrocarbon accumulation of sand lens reservoirs ——Taking the Sha3 intermediate member in Niuzhuang Sag of Jiyang Depression as an example

作　　者：饶孟余[1] 张遂安[1] 赵常艳[2] 陈元春[2] 

机构地区：[1]中国石油大学,北京102200 [2]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2006年第2期12-15,共4页Special Oil & Gas Reservoirs

摘　　要：利用岩石薄片和扫描电镜等资料,对牛庄洼陷沙三中亚段砂岩透镜体的显微特征及成岩矿物的组合关系进行研究,认为成岩作用对砂岩透镜体成藏具有控制作用:一方面为砂体成藏提供储集空间和有效圈闭,另一方面增加了油气进入砂体的阻力。根据对牛庄洼陷96个砂岩透镜体的物性分析发现,在成岩作用的控制下,砂体成藏的物性存在临界值。该认识不仅丰富了油气成藏机理的理论,而且对该区油气勘探具有指导意义。Based on the data from thin section and SEM,the micro-characteristics and com posite relation between diagenesis minerals of sand lens has been analyzed.This authors think that the diagenesis have controlling function to hydrocarbon accumulation of sand lens reservoir: on one hand,proving reservoir space and effective trap;on the other hand,increasing resistance of hydrocarbon entering into sandbody.The analysis of the physical properties of 96 sand lenses in the Niuzhuang sag shows that there is a critical value of reservoir forming under diagenesis controlling.This cognition not only enriches the theory of hydrocarbon accumulation mechanism,but also has guiding significance to oil and gas exploration in this area.

关 键 词：成岩作用 砂岩透镜体 成岩作用 控制因素 成藏机理 成岩圈闭 牛庄洼陷 

分 类 号：TE122.3[石油与天然气工程—油气勘探]