	US 11,905,459 B2
	Method to mitigate halite scale
Dong Shen, The Woodlands, TX (US); Haiping Lu, Sugar Land, TX (US); Daniel Philip Bestgen, Rapid City, SC (US); Kung-Po Chao, Sugar Land, TX (US); and Joseph Penkala, Denver, CO (US)
Assigned to Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on May 26, 2022, as Appl. No. 17/826,026.
Prior Publication US 2023/0383171 A1, Nov. 30, 2023
Int. Cl. C09K 8/528 (2006.01)

CPC C09K 8/528 (2013.01)

12 Claims

1. A method for inhibiting or preventing the formation of halite scales in an oilfield brine, which method comprises adding to an oilfield brine having a potential for halite scaling an amount of an additive effective to inhibit or prevent the formation of halite scales in the oilfield brine, where the additive comprises:

at least one quaternary ammonium compound that is benzyl-alkyldimethyl ammonium chloride, where the alkyl group has from 2 to 30 carbon atoms; and

at least one organic solvent.