作者: Jonathan Marshall , David R. Hall , Scott Dahlgren
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摘要: A downhole tool string component comprises a tubular body with first and second end. The of the an inner surface outer surface. loading member near other end is disposed about adapted for at least one sleeve against shoulder. internal threadform to threadingly engage external in body. Either or plurality threads distal thread comprising height proximal height. greater than heights between accumulatively taper from