US 11,920,086 B1
Friction reducers for dissolved solids tolerance
Nicole Mast-Hale, Houston, TX (US); Denise Nicole Benoit, Houston, TX (US); I Wayan Rakananda Saputra, Houston, TX (US); and Francisco Xavier Ruiz, II, Conroe, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Aug. 31, 2022, as Appl. No. 17/899,964.
Int. Cl. C09K 8/64 (2006.01); C09K 8/60 (2006.01); C09K 8/80 (2006.01); C09K 8/82 (2006.01); E21B 43/267 (2006.01)
CPC C09K 8/82 (2013.01) [C09K 8/602 (2013.01); C09K 8/64 (2013.01); C09K 8/80 (2013.01); E21B 43/267 (2013.01); C09K 2208/28 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
providing a friction reducer comprising:
a continuous phase comprising a base oil;
a discontinuous phase dispersed in the continuous phase, wherein the discontinuous phase comprises water and a water-soluble polymer; and
an emulsifying surfactant;
selecting a secondary oil for the friction reducer based at least partially on one or more properties of a water sample, wherein the secondary oil is different than the base oil,
wherein selecting the secondary oil for the friction reducer comprises developing a correlation between the secondary oil and the one or more properties of the water sample, wherein the one or more properties are selected from the group consisting of: TDS; pH; temperature; ionic composition; and any combination thereof; and
adding the secondary oil to the friction reducer to form a secondary-oil-containing friction reducer.