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Downhole tool

United States Patent

March 20, 2007
View the Complete Patent at the US Patent & Trademark Office
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.
Hall; David R. (Provo, UT), Muradov; Andrei (Houston, TX), Pixton; David S. (Lehi, UT), Dahlgren; Scott Steven (Alpine, UT), Briscoe; Michael A. (Lehi, UT)
IntelliServ, Inc. (Provo, UT)
10/ 905,894
January 25, 2005
FEDERAL SPONSORSHIP This invention was made with government support under Contract No. DE-FC26-01NT41229 awarded by the U.S. Department of Energy. The government has certain rights in the invention.