Combination workover and drilling rig

Details Combination workover and drilling rig Combination workover and drilling rig

2006-12-26

2006-12-26

Gay, Jennifer H. (Department: 3672)

Wells

Above ground apparatus

Moving tubing or cable into an existing well

C175S162000, C280S656000, C242S397200, C242S403000

Reexamination Certificate

active

07152672

ABSTRACT:
The combination workover and drilling rig of the present invention combines a capability to drill a well, as well as perform well maintenance and service, using either or both tubing with threaded tubular connections or coiled tubing. A mast and a coiled tubing injector are independently mounted to a support platform and can be operated independently of each other. The coiled tubing injector is selectably elevatable into a stowed position, a ready position, or an operating position.

REFERENCES:
patent: 4673035 (1987-06-01), Gipson
patent: 5842530 (1998-12-01), Smith et al.
patent: 6092756 (2000-07-01), Sola
patent: 6502641 (2003-01-01), Carriere et al.
patent: 6530432 (2003-03-01), Gipson
patent: 6973979 (2005-12-01), Carriere et al.
patent: 2006/0000619 (2006-01-01), Borst et al.

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