Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2007-06-05
2007-06-05
Gay, Jennifer H. (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S177400, C166S096100, C166S090100, C166S093100, C166S088100
Reexamination Certificate
active
11255573
ABSTRACT:
A system for cementing a casing in an open wellbore having no surface casing, wherein an annulus is defined between the casing and the wellbore, the system having: an annular plug around the casing at the mouth of the wellbore; a cement composition pump fluidly connected to the annulus through the seal; and a coupling connected to the exposed end of the casing for taking circulation fluid returns from the inner diameter of the casing.
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Blanchard Karl
Rogers Henry E.
Webb Earl D.
Baker & Botts L.L.P.
Fuller Robert
Gay Jennifer H.
Halliburton Energy Service,s Inc.
Wustenberg John W.
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