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Title:
PLUG AND METHOD OF UNPLUGGING A SEAT
Document Type and Number:
WIPO Patent Application WO/2012/067786
Kind Code:
A3
Abstract:
A method of unplugging a seat, including dissolving at least a surface of a plug seated against the seat, and unseating the plug from the seat.

Inventors:
JOHNSON MICHAEL H (US)
XU ZHIYUE (US)
Application Number:
PCT/US2011/058112
Publication Date:
July 26, 2012
Filing Date:
October 27, 2011
Export Citation:
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Assignee:
BAKER HUGHES INC (US)
JOHNSON MICHAEL H (US)
XU ZHIYUE (US)
International Classes:
E21B33/12; E21B34/14
Foreign References:
US20090159289A12009-06-25
US20070107908A12007-05-17
US20090044955A12009-02-19
US20090044946A12009-02-19
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