Oil or gas field casing

Details Oil or gas field casing Oil or gas field casing

1982-04-09

1986-09-02

Callaghan, Thomas F.

Pipe joints or couplings

Particular interface

Tapered

F16L 1500

Patent

active

046092129

ABSTRACT:
The made thread end of an oil or gas field casing is tapered at a range of from 1:8 to 1:6.5 and a thread pitch of 3.2 to 2 threads per inch, these dimensions being applied to a pipe larger than 400 mm diameter and a wall thickness of up to 32 mm.

REFERENCES:
patent: 2885225 (1959-05-01), Rollins
patent: 3355192 (1967-11-01), Kloesel, Jr. et al.
patent: 3388752 (1968-06-01), Hanes et al.
patent: 3586353 (1971-06-01), Lorenz
patent: 4004832 (1977-01-01), Connelly
patent: 4384737 (1983-05-01), Reusser

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