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US 12,441,928 B1Granted
Method and composition for treating lost circulation
AssigneeHalliburton Energy Services, Inc.
InventorsSimon David Turton, William Cecil Pearl, Paul J Jones, Ronnie Glen Morgan
Life of this patent
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Abstract
An invert emulsion is used to form a hydrated flocculated polymer useful in reducing fluid loss in downhole operations. The invert emulsion can be sheared to form the hydrated flocculated polymer, which can be introduced downhole into the fluid loss flow path in a subterranean formation and allowed to accumulate at the pore throat to reduce fluid loss.
Claims17
A method for reducing fluid loss in downhole operations, the method comprising:
- introducing a hydrated flocculated polymer downhole into a fluid loss flow path in a subterranean formation, wherein the hydrated flocculated polymer is produced from a hydratable polymer, wherein the hydrated flocculated polymer is produced by:
- providing an invert emulsion of an oil phase and a water phase, with the water phase containing the hydratable polymer;
- and
- shearing the invert emulsion so as to produce the hydrated flocculated polymer;
- and
- allowing the hydrated flocculated polymer to accumulate at a pore throat to reduce fluid loss.
3 more elements
Dependencies are inferred from the claim text.