摘要
对渝南地区煤层气测井建立了非含煤和含煤测井的体积模型和多参数定量识别方法,煤层气储层测井曲线响应特征主要表现为"三高二低"特征(高电阻率、高补偿中子、高声波时差、低自然伽马、低密度),现今最大主应力方向为北东东-南西西向,煤层含气量在9.4～19.7 m`3/t,气体成分中甲烷含量较高(82.41%～99.21%),煤层气质量较好。通过对煤层气储层的物性、含气性、岩石力学性质、各向异性等地质参数进行定量评价,为该区域煤层气的井网规划和规模开发提供了重要的技术支撑。
With the coalbed gas logging in southern Chongqing,the volume model and multi-parameters quantitative forecast is established containing on coal formation and others.The logging response character is presented as high resistivity,compensation neutron,sonic,and low natural gamma,low density.The results shows that the gas content is 9.4 to 19.7 m]3/t,the methane content in CBM is 82.41%to 99.21%,which shows that the area has the good prospect of industrial exploitation.Through the quantitative evaluation of geological parameters,such as lithology,geomechanics,gas content and anisotropy,the important technical support is provided for the CBM well pattern planning and scale development in this area.
作者
谢庆明
程礼军
刘洪
张烨
邓智
吴国代
王丹
XIE Qing-ming;CHENG Li-jun;LIU Hong;ZHANG Ye;DENG Zhi;WU Guo-dai;WANG Dan(Key Laboratory of Shale Gas Exploration,Ministry of Land and Resources,Chongqing Institute of Geology and Mineral Resources,Chongqing 400042,China;The Engineering Research Center of Shale Gas Exploration and Development in Chongqing,Chongqing Institute of Geology and Mineral Resources,Chongqing 400042,China;Chongqing Shale gas Research Center,State Key Laboratory of Petroleum Resource and Prospecting,Chongqing 400042,China)
出处
《煤炭技术》
CAS
2019年第4期78-80,共3页
Coal Technology
基金
重庆市科技委员会科技项目(cstc2016zdcy-zd90002
cstc2017jxjl20006)
重庆市国土资源和房屋管理局科技计划项目(KJ-2018030)
关键词
煤层气测井
中-高阶煤储层
测井解释评价
各向异性
含气性
coalbed methane logging
medium-high rank coal
logging interpretation
anisotropy
gas content
