Downhole tool

Details Downhole tool Downhole tool

2007-03-20

2007-03-20

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Wellbore telemetering or control

Repeater in subsurface link

C340S853300, C340S854500, C166S242600

Reexamination Certificate

active

10905894

ABSTRACT:
A double shouldered downhole tool connection comprises box and pin connections having mating threads intermediate mating primary and secondary shoulders. The connection further comprises a secondary shoulder component retained in the box connection intermediate a floating component and the primary shoulders. The secondary shoulder component and the pin connection cooperate to transfer a portion of makeup load to the box connection. The downhole tool may be selected from the group consisting of drill pipe, drill collars, production pipe, and reamers. The floating component may be selected from the group consisting of electronics modules, generators, gyroscopes, power sources, and stators. The secondary shoulder component may comprises an interface to the box connection selected from the group consisting of radial grooves, axial grooves, tapered grooves, radial protrusions, axial protrusions, tapered protrusions, shoulders, and threads.

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PCT/US 03/18475, Published Dec. 4, 2003, Applicant Baker Hughes; International Search Report: “Documents Considered to Be Relevant”.

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