Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2005-07-26
2005-07-26
Bagnell, David (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
Reexamination Certificate
active
06920929
ABSTRACT:
A system and method of cementing in an annulus formed between a casing and the wall of a well bore, wherein a foamed cement is introduced into the upper portion of the annulus, directed downwardly through the annulus and back up into the casing, and then displaced back down the casing and into the annulus.
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Bagnell David
Haynes and Boone LLP
Roddy Craig W.
Stephenson Daniel P
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