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US 11,629,285 B2Granted
Methods and systems for adding functionality for cross linked polymers in a wellbore environment
AssigneeScidev Energy Services, Inc.
InventorsShawn Lu, Kevin Wilbur Smith
Life of this patent
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Abstract
Forming a hydrogel in-situ downhole by pumping multiple polymers together that synergistically work together to reduce the flow of water through a proppant pack
Claims11
A polymer mixture for downhole applications, the mixture comprising:
- a first cationic polymer that hydrolyzes;
- a second cationic polymer or cationic surfactant that does not hydrolyze, wherein the polymer mixture includes two pounds of the first cationic polymer and one gallon of a twenty percent solution of the second cationic polymer per thousand gallons, wherein the polymer mixture forms a hydrogel that reduces a water flow rate through the hydrogel and increases an oil flow rate through the hydrogel.
Dependencies are inferred from the claim text.