东濮凹陷优质烃源岩的岩性特征及宏观展布规律  

Lithological characteristics and macroscopic distribution rule of high-quality hydrocarbon source rocks in Dongpu Depression

作　　者：王金萍[1] 黄泽贵[2] 张云献[1] 周勇水[1] 李红磊[1] 张莹莹 WANG Jinping;HUANG Zegui;ZHANG Yunxian;ZHOU Yongshui;LI Honglei;ZHANG Yingying(Research Institute of Exploration and Development,Zhongyuan Oilfield Company,SINOPEC,Puyang 457001,China;Zhongyuan Oilfield Company,SINOPEC,Puyang 457001,China)

机构地区：[1]中国石化中原油田分公司勘探开发研究院,河南濮阳457001 [2]中国石化中原油田分公司,河南濮阳457001

出　　处：《断块油气田》2018年第5期549-554,共6页Fault-Block Oil & Gas Field

基　　金：国家科技重大专项课题"东濮凹陷油气富集规律与増储领域"(2016ZX05006-004)

摘　　要：运用测井岩石学理论和总有机碳质量分数(TOC)数据建立优质烃源岩的岩石相和有机相模型,明确优质烃源岩的主力岩相是页岩和油页岩;采用Δlog R模型法,针对东濮凹陷不同构造单元、不同层位的烃源岩建立TOC测井预测模型,刻画东濮凹陷不同时期优质烃源岩空间展布规律,明确东濮凹陷优质烃源岩的发育具有较强的层控、相控特征,纵向上,沙四上和沙三下是优质烃源岩的主力层。受沉积相控制,盐湖背景下的优质烃源岩相比无盐地区和南部地区较发育。在盐岩韵律准层序组内,优质烃源岩主要发育在准层序的水退序列早期;平面上,优质烃源岩主要发育在环盐湖周边和沉积、沉降中心附近,优质烃源岩主要分布在盐岩和泥页岩互层的过渡型剖面类型中。Based on logging petrology and TOC,lithofacies and organic phase model of high-quality hydrocarbon source rocks is built,which clearly confirms that the main lithofacies of high-quality hydrocarbon source rocks are shale and oil shale.Based onΔlog R model method,TOC logging prediction model is built for hydrocarbon source rock in different horizon of different structural unit in Dongpu Depression,which describes space distribution rule of high-quality hydrocarbon resource rock in different stages of Dongpu Depression.The result indicates that the development of high-quality hydrocarbon resource rock of Dongpu Depression possesses strong strata bound and phase-controlled feature,and vertically upper Es4 and low Es3 are the main layers of high-quality hydrocarbon resource rock.Controlled by facies,high-quality hydrocarbon resource rock with salt lake setting developed better than that with no salt background and that in south area.In halite rhythm subsequence,high-quality hydrocarbon resource rock mainly developed in the early stage of water regression sequence of subsequence.Horizontally,high-quality hydrocarbon resource rock mainly developed in periphery around salt lake and near deposition center and mainly distributes in transitional section type layer of halite and mud-shale stone.

关 键 词：优质烃源岩 岩石相 层控相控 东濮凹陷 

分 类 号：TE122[石油与天然气工程—油气勘探]