Wells – Processes – Freeing stuck object – grappling or fishing in well
Patent
1976-07-19
1977-11-22
Novosad, Stephen J.
Wells
Processes
Freeing stuck object, grappling or fishing in well
166 65M, 166 99, 175237, 294 655, 175254, E21B 3106, E21B 3108
Patent
active
040591557
ABSTRACT:
An improved junk basket comprises a tool body having a longitudinally extending passageway therethrough and a magnet assembly disposed in the passageway. A retainer is cooperative between the magnet assembly and the tool body to retain the magnet assembly in a lower position in the passageway and selectively releasable to permit longitudinal movement of the magnet assembly to an upper position in the passageway whereby core cutting apparatus and/or an improved reverse circulation system, also included in the tool, may be employed.
REFERENCES:
patent: 2550228 (1951-04-01), Costin
patent: 2613980 (1952-10-01), Hawkins
patent: 2617486 (1952-11-01), Davis
patent: 2638988 (1953-05-01), Williams
patent: 2657752 (1953-11-01), Ballew et al.
patent: 2675879 (1954-04-01), Middleton et al.
patent: 2789790 (1957-04-01), Kirby
patent: 3814180 (1974-06-01), Oliver
Composite Catalog of Oil Field Equipment & Services, vol. 2, 1962-1963, 25th Rev., World Oil, Houston, Texas, p. 2836.
Composite Catalog of Oil Field Equipment & Services, vol. 3, 1962-1963, 25th Rev., World Oil, Houston, Texas, p. 4992.
International Enterprises, Inc.
Novosad Stephen J.
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