Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2005-04-19
2005-04-19
Dang, Hoang (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S285000, C166S291000, C166S377000
Reexamination Certificate
active
06880636
ABSTRACT:
An embodiment of a downhole tool for use with a workstring in a wellbore includes a first section, a second section, and a coupling mechanism adapted such that in a first configuration the coupling mechanism couples the first section to the second section. In a second configuration, the coupling mechanism does not couple the first section to the second section. Also disclosed is a method for creating a plug in a wellbore, the method comprising: injecting a slurry into the workstring to form a plug in the wellbore, positioning a flow preventing mechanism into the workstring to prevent fluid flow from exiting the workstring, inducing a coupling mechanism to uncouple a portion of the workstring such that the portion remains with the slurry to create the plug in the wellbore, and removing the first section from the wellbore.
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Acosta Frank
Dodson Michael
Rogers Henry E.
Szarka David D.
Webb Earl D.
Dang Hoang
Halliburton Energy Service,s Inc.
Haynes & Boone LLP
Wustenberg John W.
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