Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate
2006-05-09
2006-05-09
Suchfield, George (Department: 3676)
Boring or penetrating the earth
Processes
Boring with specific fluid
C166S305100, C166S307000, C166S308600, C166S309000, C166S312000, C507S102000, C507S202000, C507S269000, C507S904000, C507S925000
Reexamination Certificate
active
07040419
ABSTRACT:
The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed well composition. The process utilizes air to foam the composition after the air has been treated to lower the oxygen content below that concentration necessary to support combustion. Additionally, the current invention provides a process for completing and/or treating a well bore using a foamed composition wherein the foam is generated with reduced oxygen content air. Finally, a preferred embodiment of the invention provides a foamed cement composition wherein the gaseous portion of the composition is air having a reduced oxygen content.
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Chatterji Jiten
Griffith James E.
Middaugh Richard L.
Halliburton Energy Service,s Inc.
McAfee & Taft
Roddy Craig W.
Suchfield George
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