煤层气井下排采参数及其诊断仪研制要点思考

针对我国目前煤层气评价、勘探、开发中尚存在的理论和实践问题，探讨了影响煤层气评价的排采井内压力、密度、温度、水气混合液流量等重要参数和各参数在井筒中的曲线应有形态，以及获得各参数的煤层气井下诊断仪的研制思路．达到了解煤层气储层各部分的实际工作状态的目的，为煤层气排采井的产水和产气层位以及气、水单独流量和相应的压力的定性分析提供依据。

Pondering on CBM Underground Drainage, Mining Parameters and Kernel of Diagnostic Instrument Development

Aimed at existing theoretical and practical problems in the country＇s CBM evaluation, exploration and exploitation, discussed important parameters of pressure, density, temperature and mixed water-methane solution flow rate in drainage and mining wells and due curve configurations of each parameter to obtain each parameter CBM underground diagnostic instrument development train of thoughts. Thus carried objective point to know practical operating mode of each CBM reservoir part, have provided with bases of CBM well water and methane producing horizons, respective methane, water flow rates and corresponding pressure qualitative analyses.