北京大学学报：自然科学版2011，Vol.47Issue(5)：969-972,4.
长深气田火成岩储层应力敏感性及其成因机理
Pressure Sensitivity and Its Genetic Mechanism of Igneous Rock Formations in Changshen Gas Field
摘要
Abstract
The core samples of igneous rock formations with low permeability and low porosity in Jilin Changshen well block are tested for their pressure sensitivity.The result shows that permeability recovery rate of these samples is not more than 11%,which indicates high pressure sensitivity of the formations.By observing core samples and comparing the result of pressure sensitivity tests with those from igneous rock core samples of other regions,it shows that the pressure sensitivity of igneous rock formations is relevant to lithology,structure,construction,development and type of porosity and fracture.Different from the unitary diagenesis of sandstone,the complex diagenesis of igneous rock leads to different pressure sensitivity in different areas.Therefore the pressure sensitivity of different igneous rock formations should be treated differently.Meanwhile,pressure sensitivity of a certain well may not be the same in different igneous layers.关键词
火成岩/应力敏感性/储层伤害/有效应力Key words
igneous rock/pressure sensitivity/reservoir damage/effective stress分类
矿业与冶金引用本文复制引用
王磊,师永民,宋秋国,柴智,秦小双,李晓敏,吴文娟..长深气田火成岩储层应力敏感性及其成因机理[J].北京大学学报：自然科学版,2011,47(5):969-972,4.基金项目
国家重点基础研究发展计划（2009CB219300）资助 （）
