煤岩储层伤害机理及评价方法  

Mechanism of Coal & Rocks Reservoirs and Evaluation Methods

作　　者：崔思华[1,2] 管保山[2] 张遂安[1] 伊向艺[3] 梁利[2] 刘萍[2] 

机构地区：[1]中国石油大学(北京),北京102249 [2]中国石油勘探开发研究院廊坊分院,河北065007 [3]成都理工大学,四川610059

出　　处：《中国煤层气》2012年第3期38-41,共4页China Coalbed Methane

基　　金：国家重大专项<煤层气完井与高效增产技术及装备研制>项目(编号:2008ZX05037)资助

摘　　要：我国多数地区煤层的渗透率较低,通常小于1×10-3μm2,煤层渗透率一般在0.1~0.001×10-3μm2,属于特低渗透或致密储层,对各种伤害因素更为敏感,伤害评价显得尤为重要。本文介绍几种评价煤岩储层伤害的实验方法,可评价压裂液对煤岩基质的伤害、对裂缝割理的伤害。The permeability of coal seams is low in most areas in China. Usually, it is less than 1 ×10-3μm2. The permeability of coal seams generally varies from 0.1 to 0.001 ×10-3μm2 These seams belong to especially low permeability seams or compact reservoirs, which are more sensitive to all the damaging factors. Therefore, damage evaluation becomes very important. The paper introduces several experimental methods for evaluation of damages of lithologic reservoir, which can be used for evaluation of damages of frac fluids to lithologic matrix, and their damage to fissure ＆ cleavages.

关 键 词：煤岩 伤害实验 评价方法 

分 类 号：TD84[矿业工程—煤矿开采]