摘要
为提高煤层气开发成效,基于井田地质、煤层气地质、煤层气勘探及测试等资料,采用煤层气地质理论和数理统计分析法,对长平井田15号煤储层物性进行了探究。结果表明:15号煤层为中厚~厚煤层,煤层气含量整体较高;煤孔隙度与渗透率低,为低孔、超低渗-低渗煤储层;煤储层压力及压力梯度低,为低压(欠压)煤储层;煤吸附甲烷能力较强,吸附量大。
In order to improve the development effect of coalbed methane,based on the data of coalfield geology,coalbed methane geology,coalbed methane exploration and testing,using coalbed methane geological theory and mathematical statistical analysis method,the physical properties of No.15 coal reservoir in Changping coalfield were studied.The results show that No.15 coal seam is medium thick to thick,and the content of coalbed methane is relatively high,the porosity and permeability of coal are low,which are low porosity,ultra-low permeability and low permeability coal reservoirs.The pressure and pressure gradient of coal reservoir are low,which is low pressure(under pressure)coal reservoir,coal has strong methane adsorption capacity and large adsorption capacity.
作者
曲铭
Qu Ming(Exploration Branch of Shanxi Lanyan Coalbed Methane Group Co.,Ltd.,Shanxi Jincheng 048012)
出处
《山东煤炭科技》
2021年第8期180-182,共3页
Shandong Coal Science and Technology
基金
山西省科技重大专项(20181101013)。
关键词
长平井田
15号煤层
煤储层物性
煤层气
Changping minefield
No.15 coal seam
physical properties of coal reservoir
coalbed methane
