川东南地区灯影组储层特征及其控制因素研究  

Reservoir features and controlling factors of Dengying Formation in Southeast Sichuan,China

作　　者：施泽进[1] 彭俊[1] 王勇[1] 

机构地区：[1]"油气藏地质及开发工程"国家重点实验室(成都理工大学),成都610059

出　　处：《成都理工大学学报（自然科学版）》2010年第1期1-8,共8页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金委员会与中国石油化工股份有限公司联合基金资助项目(40739903)

摘　　要：川东南地区灯影组是一套以潮坪相白云岩为主的地层,其储层主要分布在中、上部。通过对灯影组储层薄片观察及物性资料分析发现,储集空间主要为次生溶蚀孔、洞、缝,储层类型为低孔低渗的裂缝-孔洞型储层。储层发育受沉积相和成岩作用的双重影响,沉积相是储层形成的基础,成岩作用则决定了储层的储集性能好坏;压实作用、胶结作用、硅化作用是破坏孔隙的主要成岩作用,溶蚀作用(特别是表生期古喀斯特作用)、破裂作用是发育次生孔隙的主要成岩作用。The Sinian Dengying Formation is a set of tidal flat dolostone in Southeast Sichuan. The dolostone reservoir is dominantly distributed over the top and middle of the Dengying Formation. Based on the flake observation and physical properties data of the reservoir in Dengying Formation, this study indicates that the main reservoir spaces are pores, vugs and features with secondary origin and the reservoir is a fractured-porous type with low porosity and low permeability. The reservoir＇s development is influenced by both sedimentary facies and diagenesis and the sedimentary facies are the basis of its development and diagenesis process controlled by the reservoir＇s ability. Cementation, compaction and silieification are the major diagenesis for destroying pores. Denudation and fracturing are the major diagenesis for forming secondary pores.

关 键 词：川东南 灯影组 储层特征 控制因素 

分 类 号：TE122.23[石油与天然气工程—油气勘探]