Wells – Expansible anchor or casing – Liner hanger
Reexamination Certificate
2006-08-15
2006-08-15
Will, Thomas B. (Department: 3671)
Wells
Expansible anchor or casing
Liner hanger
C166S277000, C166S297000, C138S098000, C405S184200
Reexamination Certificate
active
07090006
ABSTRACT:
A method of re-manufacturing a composite riser section having a damaged original metal liner comprises inserting an expandable replacement liner into the bore of the composite riser section and positioning the replacement liner to cover the metal liner. An annular recess may be formed circumferentially into the damaged portion of the metal liner to accommodate the replacement liner. The replacement liner is radially expanded within the composite riser section and a seal is created to prevent fluid inside the composite riser from flowing around the replacement liner, through the damaged liner, and to the outside of the composite riser.
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Beach Thomas A
Conley & Rose, P.C.
ConocoPhillips Company
Will Thomas B.
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