... tool jack 钻具上紧螺纹装置 tool joint box 内螺纹钻杆接头 tool joint gage 工具接头规 ...
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... Control Tool-Box 控制工程工具箱 tool joint box 内螺纹钻杆接头 ; 接头母扣 tool-box slide 刀箱滑板 ...
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Due to the increasing number of deep Wells and directional Wells being drilled, longitudinal fracture occurred on the box-ended drill pipe tool joint is often reported.
近年来由于深井、定向井等逐渐增多，油气井钻井中钻杆内螺纹接头纵向开裂失效成为常发事故。
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