煤层气水平羽状分支井的综合录井

利用水平羽状分支井来开发利用煤层气，是一项新的钻探技术，它有别水平钻井,有其独特性。在录井过程中既存在常规煤层气井的共性问题，又有在分支钻进过程中确保井眼轨迹符合设计要求的问题，同时还存在样品气基值不稳定的问题。如何确保地质录井取得完整资料，顺利解决上述问题，是录井技术人具面临的崭新课题。介绍了煤层气水平羽状分支井的基本录井方法，并针对施工过程中存在的问题，寻找出有效的解决办法．为应对新的钻探技术下的录井难题提供借借鉴。

Coal seam gas mud logging for horizontal pinnate branch well

Making use of horizontal pinnate branch well to develop and utilize coal seam gas, is a new drilling technique, which is different from horizontal drilling and has its own uniqueness. During mud logging, there existed common problems in conventional coal seam gas wells, but also existed the problem of guaranteeing branch well track to tally with design requirements in the course of drilling, as well as existed the problem that base values of sample gases were unstable. How to ensure the integrate data is obtained by geologic logging and solve the above problems smoothly, is the new topic laid ahead of mud logging technician. The paper gave an introduction of the basic mud logging methods of coal seam gas horizontal pinnate branch well, and according to the problems existed in the course of operation, found out the effective resolvents, it provided reference for mud logging technician to solve the difficult problems occurred in the new drilling technique.