Wells – Processes – Placing or shifting well part
Reexamination Certificate
2006-07-18
2006-07-18
Gay, Jennifer H. (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S387000, C166S120000, C166S134000
Reexamination Certificate
active
07077212
ABSTRACT:
The present invention generally relates to an apparatus and method for operating a tool in a wellbore. In one aspect, the apparatus includes a hydraulically operated tool and a wellbore tubular both in communication with a pressure sensing line. The hydraulically operated tool is responsive to a combination of a fluid pressure in the pressure sensing line and a manipulation of the wellbore tubular, such response causing the tool to operate within the wellbore. In another aspect, the invention provides a method for anchoring a well tool in a wellbore. The method includes the steps of lowering the well tool into the wellbore on a tubular string, flowing fluid through the tubular string to begin anchoring the well tool, and manipulating the tubular string to complete the anchoring of the well tool.
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Bailey Thomas F.
McIntire Scott
Roesner Thomas
Vuyk, Jr. Adrian
Collins Giovanna M.
Gay Jennifer H.
Patterson & Sheridan LLP
Weatherford / Lamb, Inc.
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