	US 12,006,467 B2
	Compositions of aphron sealing lost circulation spacer
Garrett Schultz, Spring, TX (US); and Jordan Clark, Tomball, TX (US)
Assigned to SELECT CHEMISTRY, LLC, Houston, TX (US)
Filed by SELECT CHEMISTRY, LLC, Houston, TX (US)
Filed on Nov. 10, 2022, as Appl. No. 17/984,823.
Claims priority of provisional application 63/284,868, filed on Dec. 1, 2021.
Prior Publication US 2023/0167351 A1, Jun. 1, 2023
Int. Cl. C09K 8/514 (2006.01); C09K 8/00 (2006.01); C09K 8/50 (2006.01); C09K 8/504 (2006.01)

CPC C09K 8/501 (2013.01) [C09K 8/00 (2013.01); C09K 8/5045 (2013.01); C09K 8/514 (2013.01); C09K 2208/04 (2013.01); C09K 2208/08 (2013.01)]

13 Claims

1. A spacer fluid comprising:

an aphron generating component;

an aphron, the aphron being a bubble between 10 and 150 microns in diameters; the aphron having a structure of one core, two layers, and three membranes;

a polymer;

a lost circulation material; and,

a weighting agent component.