鄂尔多斯盆地延川南区块目的煤层含气性分析  

Target Coal Seam Gas-bearing Property Analysis in Yanchuan South Block, Ordos Basin

作　　者：曾凡武[1] 李维[1] 范小俊[1] 胡微雪[1] 李陈[1] 

机构地区：[1]中石化华东分公司石油勘探开发研究院,江苏扬州225007

出　　处：《中国煤炭地质》2014年第6期15-17,共3页Coal Geology of China

基　　金：国家重大专项资助项目"物探技术在煤层气勘探开发中的应用"(2011ZX05035-006)

摘　　要：为计算鄂尔多斯盆地延川南区块煤层气资源量、甄选有利区带及确定先导性试验井组的部署，对全区探井的煤层含气性进行综合分析。结果显示：区块内煤层气含量为5.54-19.56m^3/t；兰氏体积为13.59-33.78m^3/t，兰氏压力为2.06-3.72MPa，含气饱和度为41.48%-92.19%；临储压力比为19.18%-84.28%。区块整体含气性显示较好，开发较为有利，其中以包括Y3、Y6等井在内的万宝山构造带为煤层气开发的最有利区带。To estimate CBM resources in Yanchuan south block, Ordos Basin, selected favorable zones and determined pilot testing well groups deployment, carried out comprehensive analysis for whole area exploration wells coal seam gas-bearing property. The result has shown：CBM content in the block is 5.54-19.56m3/t;Langmuir volume 13.59-33.78m^3/t, Langmuir pressure 2.06-3.72MPa, gas saturation 41.48%-92.19%, ratio of critical desorption pressure to reservoir pressure 19.18%-84.28%. The whole block indication of gas-bearing property is rather good, thus favorable to exploit, in which, the Wanbaoshan structural belt with wells Y3, Y6 included is most favorable zone for CBM exploitation.

关 键 词：煤层气 含气量 有利区带 延川南区块 

分 类 号：P618.11[天文地球—矿床学]