Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2006-09-14
2009-06-30
Chilcot, Jr., Richard E (Department: 3635)
Wells
Processes
Cementing, plugging or consolidating
C166S207000, C166S380000, C166S297000
Reexamination Certificate
active
07552772
ABSTRACT:
An apparatus to protect the mounting area of casing when subsequently attaching a tubular is disclosed. A sleeve that defines a sealed cavity having a loose incompressible material inside covers the mounting location on the casing. The cementing of the casing takes place through the sleeve. After the cementing, the sleeve is drilled out and the incompressible material is removed to the surface with the drill cuttings. A tubular is inserted in the casing and is preferably expanded into sealing contact with the mounting location on the casing. At the end of expansion, the run in shoe on the tubular is retrieved.
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Adam Mark K.
Carmody Michael A.
Jabs Matthew J.
Payne Harold E.
Baker Hughes Incorporated
Chilcot, Jr. Richard E
Rosenblatt Steve
Smith Matthew J
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