	US 12,140,007 B1
	Compositions and methods for inhibiting clay swelling in hydrocarbon shale formations
Roy W. Martin, Naples, FL (US)
Assigned to Truox, Inc., Naples, FL (US)
Filed by Truox, Inc., Naples, FL (US)
Filed on Jul. 10, 2024, as Appl. No. 18/768,483.
Claims priority of provisional application 63/666,289, filed on Jul. 1, 2024.
Claims priority of provisional application 63/658,038, filed on Jun. 10, 2024.
Claims priority of provisional application 63/651,052, filed on May 23, 2024.
Claims priority of provisional application 63/646,008, filed on May 13, 2024.
Int. Cl. E21B 43/16 (2006.01); C09K 8/035 (2006.01); C09K 8/60 (2006.01); C09K 8/68 (2006.01); C09K 8/90 (2006.01); E21B 43/22 (2006.01); E21B 43/26 (2006.01)

CPC E21B 43/16 (2013.01) [C09K 8/035 (2013.01); C09K 8/604 (2013.01); C09K 8/68 (2013.01); C09K 8/90 (2013.01); E21B 43/26 (2013.01); C09K 2208/12 (2013.01)]

29 Claims

1. A method for inhibiting swelling of clay during stimulation of a hydrocarbon shale formation, the method comprising:

inserting a composition into a wellbore, wherein the composition comprises

water and

an effective amount of at least one of a quaternary monosaccharide having from about 1 to 3 moles of quaternary functional groups and

a quaternary saccharide having a number of monosaccharide molecules ranging from about 2 to 20 bonded together by glycosidic linkages with from 0.5 to 3 moles of quaternary functional groups per molecule of the monosaccharide in the saccharide, and

wherein absorption and adsorption of the at least one of the quaternary monosaccharide and the quaternary saccharide onto and into the clay inhibits swelling of the clay.