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。
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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