Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2006-10-31
2006-10-31
Neuder, William (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S155000
Reexamination Certificate
active
07128154
ABSTRACT:
The present invention generally relates to apparatus and methods for completing a well. Particularly, the present invention relates to a single-direction plug for use with cementing applications and with drilling with casing applications. One embodiment comprises a cement plug for installation in a wellbore casing. The plug includes a body and gripping members for preventing movement of the body in a first axial direction relative to the casing. The plug further comprises a sealing member for sealing a fluid path between the body and the casing. The plug is movable in a second axial direction with fluid pressure but is not movable in the first direction due to fluid pressure.
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pate
Brunnert David J.
Galloway Gregory Guy
Giroux Richard L.
Jordan John C.
Neuder William
Patterson & Sheridan LLP
Weatherford / Lamb, Inc.
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