Wells – With junk retrieving means
Patent
1980-10-17
1983-06-28
Pate, III, William F.
Wells
With junk retrieving means
166162, 403371, E21B 3108
Patent
active
043900640
ABSTRACT:
A junk basket for collecting junk from a well bore and adapted for external connection to a well drilling string. The junk basket includes an elongate body having an annular interior for a releasable attachment to the exterior of a portion of the drilling string. The body includes an upwardly directed cavity for receiving junk from the well bore and one or more drain holes through the body adjacent the bottom of the cavity for draining fluid. Ribs are provided in the cavity connected to the body for engaging the exterior of the drilling string for reinforcing the body and guide means, preferably positioned on the top of the ribs, extend upwardly for preventing the top of the body from catching on downwardly facing shoulders in the well bore. The junk basket may be releasably connected to a drilling string by providing a downwardly facing shoulder in the interior of the body and resilient male and female split rings positioned in the interior of the body which are actuated by an end cap threadably connected to the body. Axial movement of the end cap causes axial movement of the rings relative to each other for engaging or disengaging the drilling string. Positive locking screws and elongate slots are provided on the body and end cap for rotationally locking the body and cap together.
REFERENCES:
patent: 1035161 (1912-08-01), Cortinas
patent: 2657752 (1953-11-01), Ballew et al.
patent: 2670930 (1954-03-01), Farrar
patent: 2801079 (1957-07-01), Gress
patent: 3009747 (1961-11-01), Pitzer
patent: 4258804 (1981-03-01), Richey et al.
Enen, Jr. Jack
Sullivan Wayne M.
Enen Machine Tool & Equipment Co.
Pate III William F.
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