Adjustable backing arrangement for pipe suspending slips

Details Adjustable backing arrangement for pipe suspending slips Adjustable backing arrangement for pipe suspending slips

1981-03-17

1983-09-06

Callaghan, Thomas F.

Pipe joints or couplings

Serial,relatively movable portions

Having telescoping portion

166382, E21B 1910

Patent

active

044025351

ABSTRACT:
A length-adjustable device is provided for use in applying setting force to a set of pipe slips, e.g. in a petroleum well. Then, the length of the device is adjusted and the device is installed on a seat in the head as a mechanical bridge between the set slips and an axially presented surface on an overlying part of the wellhead. Due to this interposition, the slips are prevented from losing gripping force as the suspended pipe expands and contracts.

REFERENCES:
patent: 1887865 (1932-11-01), Archer
patent: 1926856 (1933-09-01), Leman
patent: 2284983 (1942-06-01), Minor
patent: 2315134 (1943-03-01), Roach et al.
patent: 2775472 (1956-12-01), Brown
patent: 3051513 (1962-08-01), Watts et al.

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