Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1975-06-02
1976-10-05
Purser, Ernest R.
Wells
With below and above ground modification
Eduction pump or plunger in well
166 558, 166 98, E21B 2900
Patent
active
039839362
ABSTRACT:
The method of and apparatus for cutting and recovering submarine surface casing and associated equipment on the ocean floor included the steps of lowering a string into the surface casing which string includes a swivel, a spear and a cutter, seating the swivel on the casing well head seat, actuating the cutter to sever the casing, setting the spear within the casing and recovering the surface casing and well head equipment associated therewith.
REFERENCES:
patent: 1830207 (1931-11-01), Mueller
patent: 2261564 (1941-11-01), Robichaux et al.
patent: 2640537 (1953-06-01), Edwards
patent: 3301324 (1967-01-01), Smith
patent: 3338305 (1967-08-01), Pittman et al.
patent: 3376927 (1968-04-01), Brown
patent: 3378072 (1968-04-01), Smith
Kennard Thomas A.
Keyes Jimmy R.
A-Z International Tool Company
Favreau Richard E.
Purser Ernest R.
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