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随钻测量技术就是把多种传感器尽可能放在靠近钻头的位置上,在钻进过程中,适时采集井下钻井工程的有关信息(如井斜角、井眼方位角、弯接头工具面角、井下温度等),及时向地面提供,通过地面设备进行处理计算,显示结果,从而实现实时监控钻头前进方向和目前的井眼轨迹,使之能准确地沿设计轨道钻达目标区。有线随钻测量系统按功能分成4部分,即井下仪器总成、地面仪器、电缆密封总成和绞车系统。井下仪器总成:包括探管及其保护壳;探管的基本元件是3个加速度计及3个磁通门,通过加速度计测重力场得到井
While drilling measurement technology is to put a variety of sensors as close as possible to the drill bit position, during the drilling process, the timely acquisition of underground drilling engineering information (such as well bevel angle, borehole azimuth, bending tool corner, Downhole temperature, etc.), provided to the ground in time, processed and calculated by the ground equipment, and displayed the result, so as to real-time monitor the drilling direction and the current well trajectory so as to accurately drill the target zone along the designed track. Cable MWD measurement system is divided into four parts by function, namely underground instrument assembly, ground instruments, cable sealing assembly and winch system. Downhole instrument assembly: Including the probe and its protective shell; the basic components of the probe are three accelerometers and three fluxgate, gravitational field through the accelerometer to get the well