Apparatus and method for lifting a bop from a wellhead

Details Apparatus and method for lifting a bop from a wellhead Apparatus and method for lifting a bop from a wellhead

1977-08-24

1978-11-14

Purser, Ernest R.

Wells

Valves, closures or changeable restrictors

166 85, 254 93R, E21B 3303

Patent

active

041251644

ABSTRACT:
A vehicle carries a hydraulic reservoir, a pump, a portable fluid-distributing valve, four or more hydraulic rams and conduits connecting the reservoir, pump, valve and rams in a hydraulic circuit such that the valve and rams may be removed from the vehicle. The rams are then connected to a BOP and beams under the rig floor; the valve is held by an operator a safe distance from the BOP and manipulated to uniformly and safely lift the BOP.

REFERENCES:
patent: 3023808 (1962-03-01), St. John
patent: 3097826 (1963-07-01), Walker
patent: 3857450 (1974-12-01), Guier
patent: 4007782 (1977-02-01), Nybo et al.
patent: 4022026 (1977-05-01), Childress

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