Threaded joint for oil well pipes

Details Threaded joint for oil well pipes Threaded joint for oil well pipes

1994-04-23

1995-05-30

Reese, Randolph A.

Pipe joints or couplings

Particular interface

Tapered

285390, F16L 3500

Patent

active

054195950

ABSTRACT:
A threaded joint for oil well pipes has excellent leak-tightness and a high disconnect torque and can withstand repeated make-ups. At the time of make-up, the load flanks (1) of the male and female threads contact each other, either the crest surfaces (3) or the root surfaces (4) are contacting and the other of the two pairs of surfaces has a gap, and a gap of at most 0.03 mm exists between the stab flanks (2) of the male and female threads.

REFERENCES:
patent: 5007665 (1991-04-01), Bovisio et al.
patent: 5360239 (1994-11-01), Klementich

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