High tensile loading top entry sub and method

Details High tensile loading top entry sub and method High tensile loading top entry sub and method

2006-09-05

2006-09-05

Tsay, Frank (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S077100

Reexamination Certificate

active

07100699

ABSTRACT:
This invention relates to an elongated wireline entry device (10) which allows a wireline tool or coiled tubing with a tool attached to be inserted in a well bore without disconnection form the drill string appended thereto without introducing bending moments into the threaded connections (101, 106, 202) attached to the drill string because the pin and box connections of the tool are in axial, longitudinal alignment, the absence of these bending moments is required to suspend long pendular, and therefore heavy, drill strings for this device without failure. The angle between the longitudinal ayes of the longitudinal passage and the wireline passage in the wireline entry device is at most 4.0°.

REFERENCES:
patent: 4685516 (1987-08-01), Smith et al.
patent: 4886115 (1989-12-01), Leggett et al.
patent: RE33150 (1990-01-01), Boyd
patent: 5284210 (1994-02-01), Helms
patent: 6202764 (2001-03-01), Ables et al.
patent: 6269879 (2001-08-01), Boyd

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