Modular drilling rig substructure

Details Modular drilling rig substructure Modular drilling rig substructure

2005-02-01

2005-02-01

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Processes

C173S028000, C173S032000, C173S034000

Reexamination Certificate

active

06848515

ABSTRACT:
A process to transport and assemble a drilling or workover rig substructure. The process includes the steps of transporting a driller side substructure section and an off driller side substructure section to a rig site so that the sections are spaced from and parallel to each other. A center substructure section is transported to the rig site. The center substructure section is moved into a space between the driller side and the off driller side sections. The center substructure section is thereafter connected to the driller side and to the off driller side subsections. A floor of the driller side substructure and a floor of the off driller side substructure are raised while both connected to the center substructure section from a transport position to a use position while maintaining the floors parallel to the bases.

REFERENCES:
patent: 2594847 (1952-04-01), Bate et al.
patent: 3145786 (1964-08-01), O'Neill et al.
patent: 3365008 (1968-01-01), Zimmerman et al.
patent: 4744710 (1988-05-01), Reed
patent: 4899832 (1990-02-01), Bierscheid, Jr.
patent: 5593250 (1997-01-01), Smith et al.
patent: 5657823 (1997-08-01), Kogure et al.
patent: 6030148 (2000-02-01), Tormala et al.

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