煤矿井下随钻方位伽马仪器刻度及顺煤层钻进模拟

摘要

With the LWD azimuth gamma instrument development and circuit design makes a thorough introduction,on the basis of this,with reference to scale vertical well,LWD azimuth gamma logging tool calibration design,the value transfer process,the uncertainty calculation method and measurement factors discusses in details.Through the establishment of drilling azimuth gamma coal seam drilling mathematical model,simulation of drilling coal seam roof and floor recognition,and the calculation method for the drilling interface distance L.%对随钻方位伽马测量仪的研制、仪器电路设计等作了介绍，在此基础上，参照垂直井刻度原理，对随钻方位伽马测井仪刻度装置设计、量值传递流程、不确定度计算方法及测量影响因素展开详细论述。通过建立随钻方位伽马顺煤层钻进数学模型，模拟钻进时煤层顶底板识别，及计算钻遇界面距离 L 的计算方法。