针对煤层气开发群井排采过程中井间干扰的形成、演变、程度及其井区储层流体地球化学场、动力场响应机理这一关键科学问题，以沁水盆地南部规模生产的煤层气田为研究实例，选择监测井按时间周期系统采集煤层气井产出的气样和水样，采用煤层气组分测试、甲烷碳氢稳定同位素测试、地层水离子浓度测试和元素分析等实验方法，并结合煤储层工程数据和煤层气井排采生产数据，查明同一监测井不同生产时刻、同一生产时刻监测区不同监测井煤层气和地层水地球化学变化特征，重点阐明群井排采条件下监测区煤储层流体化学场时空演化规律，分析煤层气井井底流压和煤层流体势表征的煤储层动力场时空演化特征，建立煤储层流体化学场、动力场演化与井间干扰形成、发展之间的内在联系，揭示煤层气直井生产区群井排采井间干扰的流体场响应机理。预期创立煤层气群井排采井间干扰的流体场监测的理论基础和监测方法体系，为煤层气开发井网优化和排采作业制度优化提供直接科学依据。

In order to solve the key scientific problems that the formation, the evolution, the degree of well interference in coalbed methane development with multi-well drainage, and their response mechanism form fluid geochemical field and fluid kinetic flied, the coalbed methane field of Southern Qinshui basin with large-scale production will be seclected as a case study, the samples of coalbed methane and formation water produced by coalbed methane wells in the montioring area will be collected systematically according to the timeframe，the experimental methods of coalbed methane component, stable carbon and chlorine isotope of methane, the concentration of the ions and the element content from the formation water will be adopted, the geochemical characteristics of coalbed methane and formation water in different production time of the same monitoring well and the different monitoring well in the same production time will be investigated combined with he data of coal reservoir engineering and coalbed methane drainage mangement. The spatial and temporal evolution law of fluid chemical field in coal reservoir of the monitoring area under multi-well drainage will be clarified especially，the spatial and temporal evolution characteristics of fluid kinetic field in coal reservoir characterized by the flowing bottom-hole pressure of coalbed methane wells and fluid potential in coal seam will be analyzed, the inherent relations between the evolution of fluid chemical field, the evolution of kinetic field and the formation, development of well interference under multi-well pattern drainage of coalbed methane will be built, the response mechanism of fluid field on well interference will be revealed under multi-well drainage of coalbed methane in CBM production area with vertical wells. The theoretical basis of monitoring on fluid field, and the monitoring method system of well interference under multi-well drainage of coalbed methane will be founded as predicted,those will provide the direct scientific evidences for the optimization of well pattern and the operating system of coalbed methane drainage during coalbed methane development.