Patent ID: 9382466
Filing Date: 2016-07-05
CPC Classification: C09K,E21B

Claim Text:
1. A method for reducing a volume of water injected into an existing subterranean well during hydrocarbon production for sodium chloride inhibition, the method comprising: pumping a formation fluid including a hydrocarbon and a produced water from the subterranean well wherein the subterranean well includes a brine including sodium chloride; adding a flow of treatment water to the subterranean well at a first ratio of treatment water to produced water; adding an aspartic acid based polymer from a storage tank to a mixing location to be mixed with the treatment water; pumping the aspartic acid based polymer and the treatment water mixture from the mixing location to the subterranean well at a second ratio of treatment water to produced water, wherein the second ratio is less than the first ratio in order to reduce a total volume pumped into subterranean well; and monitoring an ion concentration of the produced water; wherein the produced water is a combination of a brine including sodium chloride and the aspartic acid based polymer and treatment water mixture, wherein the aspartic acid based polymer inhibits crystallization of sodium chloride from the brine.