沁水盆地深、浅煤储层物性差异对比研究  

Comparative Study on Reservoir Properties of Deep and Shallow Coal Seams in Qinshui Basin

作　　者：郑贵强[1] 杨德方[1] 周显亮 

机构地区：[1]华北科技学院河北省矿井灾害防治重点实验室,河北燕郊101601

出　　处：《煤炭技术》2018年第3期108-110,共3页Coal Technology

基　　金：国家重大科技专项项目(2011ZX05042-001);中央高校基本科研业务费项目(3142015019);地质工程专业综合改革项目

摘　　要：以沁水盆地为主要研究目标,把研究深度划分为800 m以浅和800 m以深2段。通过对深部和浅部储层对比研究发现:在埋深小于800 m时,孔隙度主要分布在4%~13%;在埋深450~800 m时,储层处于伸张状态,渗透率在0.01~10 m D;储层压力与埋深呈现线性增加的关系;在1 000~1 500 m时,吸附量随着深度增大增加得很小。分析表明在800 m以深煤层气的开采难度加大,建议采用增温或驱替等技术开采深部煤层气。The studied depth was divided into shallow than 800 m and deeper than 800 m. It is found through the study that the porosity shallower than 800 m mainly ranges from 4% to 13%. The permeability when the burial depth is from 450 to 800 m ranges from 0.01 to 10 mD. The reservoir pressure presents liner relationship. The gas content decreases with the increasing of deep from 1 000 to 1 500 m. Finally,the main character parameters of different burial depth has carried comprehensive comparison in the main gas content zones, and the development suggestions are given to the deep coal seams in Qinshui basin.

关 键 词：沁水盆地 深煤层 储层物性 含气量 渗透率 

分 类 号：P618.11[天文地球—矿床学] TE37[天文地球—地质学]