摘要
储层次生孔隙预测为石油地质研究中的关键问题。以东营凹陷储层的成岩演化特征为例,分析了影响储层成岩作用的主控因素之一——有机流体,认识到储层中孔隙流体性质的变化是导致矿物发生变化的根本原因,其中孔隙中有机流体起着关键的作用,在此基础上指出油气的充注对成岩作用的影响主要有3个方面:抑制石英和伊利石的胶结作用;油气中有机酸对深部孔隙的溶蚀改造作用;油气超压对压实的缓冲作用。
The prediction of reservoir＇s secondary porosity is a key problem in petroleum geological research.Taking the characteristics of diagenetic evolution of Dongying Sag reservoir as an example,this paper analyzes the organic liquid,one of the dominative factors influencing the reservoir diagenesis,finds out that the variation of pore fluid properties is the root cause of mineral changes,in which the organic liquid in the pore plays a key role,and based on this,points out that the influences of the filling of oil and gas include mainly three aspects：the function of restraining the cementation of quartz and illite,the function of transforming the corrosion of organic acids in oil and gas on the deep pores,and the function of buffering the compaction caused by over-pressured oil and gas.
出处
《科技情报开发与经济》
2011年第2期184-188,共5页
Sci-Tech Information Development & Economy
关键词
储层成岩作用
有机流体
油气充注
东营凹陷
reservoir diagenesis
organic liquid
filling of oil and gas
Dongying Sag
