Wells – Processes – Providing porous mass of adhered filter material in well
Patent
1991-01-31
1992-03-17
Novosad, Stephen J.
Wells
Processes
Providing porous mass of adhered filter material in well
166280, 166295, 166 50, 523131, 523402, C08L 500, C09K 702, E21B 33138, E21B 4304
Patent
active
050959875
ABSTRACT:
A method of preparing high density particulate slurries is provided whereby slurries containing in excess of 23 pounds of particulate per gallon of fluid can be introduced into a subterranean formation. In accordance with the method, a viscosified pad fluid is introduced into a wellbore to create a filter cake in a desired zone within a subterranean formation. The high density slurry then is introduced into the formation to substantially fill any annular space present without significant settling. This permits the coating of the entire exterior surface of highly deviated casing exposed within a wellbore.
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Brown David L.
Nguyen Philip D.
Weaver Jimmie D.
Wilson J. Micheal
Halliburton Company
Kent Robert A.
Novosad Stephen J.
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