Optimized design of coalbed methane development with reference to Xinji mine

Base on the research of geological condition in Xinji mine,the content and procedure of well pattern design in CBM development are provided in the paper.Firstly,according to the analysis of coal reservoir geological condition in Xinji mine,the target coal seams for CBM development and the principle of well spacing design are defined.Secondly,by the production prediction of reservoir simulation,the well pattern distribution is established.Thirdly,based on production prediction and economic analysis,the well spacing for CBM development is optimized.In the end,the demonstration development plan in Xinji mine is given,and the production prediction is performed.The constructional proposal for coalbed methane development is presented.