US 12,435,256 B1
Combination clay stabilizer having an alkali metal asphalt sulfonate and quaternary ammonium salt
Marshall D. Bishop, Conroe, TX (US); Elan Watson, Montgomery, TX (US); and Katrina I. Schultz, Spring, TX (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Aug. 22, 2024, as Appl. No. 18/812,507.
Int. Cl. C09K 8/06 (2006.01); C09K 8/14 (2006.01); C09K 8/22 (2006.01)
CPC C09K 8/06 (2013.01) [C09K 8/145 (2013.01); C09K 8/22 (2013.01); C09K 2208/12 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A combination clay stabilizer comprising:
an alkali metal asphalt sulfonate; and
a quaternary ammonium salt, wherein the quaternary ammonium salt is a choline salt.