Wells – Above ground apparatus – With assembly or disassembly means
Patent
1989-01-24
1990-02-13
Novosad, Stephen J.
Wells
Above ground apparatus
With assembly or disassembly means
166 84, 166385, E21B 33072, E21B 3308, E21B 1900, E21B 2300
Patent
active
048998168
ABSTRACT:
An assembly for feeding wireline down the drill pipe, the assembly including a sub body portion having a lower pin portion mounted onto the upper threaded box portion of the upper end of the drill string. The pin portion further includes a member fixed within the bore of the sub, the member including a lower most threaded portion for accommodating the male end of an overshot tool. The member further includes a bore therethrough, which would be coaxially aligned with the bore in the overshot for accommodating the wireline therethrough. On the upper body portion of the sub, there is further provided a pack off means. The wireline assembly further includes a first principle arm member, the lower end of which is secured to the outer wall of the body portion of the assembly, and extending at substantially a 45.degree. angle therefrom. At the second upper end of the principle arm member, there is included a first pulley wheel rotatable secured thereto. There is further included a secondary arm connected to and extending from the principle arm member in a perpendicular fashion, the second arm member likewise including a second pulley wheel at the furthest end therefrom, the second arm member positioned at a point on the principal arm member, so that the pulley wheel at the distal end thereof allows the wireline to be fed around the wheel and dropped vertically directly in alignment with the bore in the body assembly of the wireline retrieval tool.
REFERENCES:
patent: 3762725 (1973-10-01), Taylor
patent: 3804168 (1974-04-01), Marshall et al.
patent: 3924686 (1975-12-01), Arnold
patent: 4090573 (1978-05-01), Rankin
patent: 4423775 (1984-01-01), Wilson
patent: 4469171 (1984-09-01), Mine
patent: 4577687 (1986-03-01), Lanmon, II
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