In drilling exploration and well drilling Industry, the drilling pipe and drill collar are key apparatus.
钻杆和钻铤等管状螺纹连接件,是钻探和石油钻井工业中的关键设备.
The developed drill pipe valve used in gas drilling is made up of nipple, cushion, sealing parts, valve seat, pin bearing, cylindrical torsion spring and valve plate.
气体钻井过程中,常规的配套工具无法满足工艺要求,为此而研制的气体钻井用钻杆阀由钻杆阀短节、缓冲垫、密封部件、阀座、销轴、圆柱扭簧和阀板等组成。
WOB with no more than drill pipe or casing to allow imposed WOB.
跟管钻压不超过钻具或套管允许施加的钻压。
Development Course and the Newest Advance of Wire Drill Pipe Transmission Technique for Information While Drilling
随钻信息的有线钻杆传输技术发展历程和最新进展
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