Expansion pig

Details Expansion pig Expansion pig

2007-03-20

2007-03-20

Thompson, Kenneth (Department: 3672)

Wells

Processes

Assembling well part

C166S383000, C166S384000, C166S207000, C072S370060

Reexamination Certificate

active

10958979

ABSTRACT:
A tool for radially expanding casing having a tool body that includes a proximal end, a distal end, and an outer surface. The tool includes at least one hydraulic channel disposed axially. The at least one hydraulic channel transmits hydraulic pressure from behind the expansion tool forward in the direction of travel of the expansion tool.

REFERENCES:
patent: 5348095 (1994-09-01), Worrall et al.
patent: 6568472 (2003-05-01), Gano et al.
patent: 7036582 (2006-05-01), Cook et al.
patent: 7090006 (2006-08-01), Salama
patent: 2004/0094312 (2004-05-01), Lohbeck et al.
patent: 2006/0076147 (2006-04-01), Ring
patent: 2006/0102360 (2006-05-01), Brisco et al.
International Search Report and Written Opinion dated Nov. 27, 2006 for corresponding Application No. PCT/US05/35682 (7 pages).

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