US 12,291,669 B2
Liquid salt activator and methods of making and using same
Thomas Jason Pisklak, Houston, TX (US); William Cecil Pearl, Jr., Houston, TX (US); Samuel J. Lewis, Houston, TX (US); and Claudia Pineda, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 27, 2021, as Appl. No. 17/512,307.
Prior Publication US 2023/0126770 A1, Apr. 27, 2023
Int. Cl. C09K 8/467 (2006.01); C04B 22/06 (2006.01); C04B 22/12 (2006.01); C04B 22/14 (2006.01); C04B 24/16 (2006.01); C04B 28/02 (2006.01); C04B 103/10 (2006.01); C04B 103/40 (2006.01)
CPC C09K 8/467 (2013.01) [C04B 22/064 (2013.01); C04B 22/124 (2013.01); C04B 22/147 (2013.01); C04B 24/163 (2013.01); C04B 28/02 (2013.01); C04B 2103/10 (2013.01); C04B 2103/40 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A liquid salt activator for an extended life cementitious slurry (ELS) consisting essentially of (i) a salt, (ii) a suspending aid wherein the suspending aid is a polymer product of one or more monomers selected from the group consisting of vinyl pyrrolidone, 2-acrylamido-2-methyl propane sulfonic acid (AMPS), acrylamide, N,N-dimethylacrylamide (NNDMA), N-vinylacetamide, allyloxy-2-hydroxy propane sulfonic acid (AHPS), acrylic acid (AA), 2-acrylamide-2-tert-butyl sulfonic acid (ATBS), N,N-dimethylaniline, pentaerythritol allyl ether, methylenebisacrylamide, divinyl ether, diallyl ether, vinyl ethers of polyglycols, vinyl ethers of polyols, allyl ethers of polyglycols, allyl ethers of polyols, divinylbenzene, 1,3-divinylimidazolidin-2-one, divinyltetrahydro-pyrimidin-2 (1H)-one, dienes, allyl-amines, N-vinyl-3 (E)-ethylidene pyrrolidone, ethylidene bis(N-vinylpyrrolidone), N-substituted acrylamides, methacrylamide, N-substituted methacrylamides, acrylates, methacrylates, methacrylic acid, N-vinylamides, N-allyl amides, vinyl alcohol, vinyl ethers, vinyl esters, allyl alcohol, allyl ethers, allyl esters, vinylpyridine, vinyl sulfonates, allyl sulfonates, vinylimidazole, diallyldimethylammonium chloride, epihalohydrin, epichlorohydrin, diepoxides, dialdehydes, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, divinylsulphone, carbodiimide, glutaraldehyde, acryloylmorpholine, N-vinyl-N-methylacetamide, N-vinylformamide, N-vinylpyrolidone, acrylonitrile, acetylomorpholine, and maleic anhydride, and (iii) water, wherein the salt comprises a cation and an anion selected from the group consisting of chloride, sulfate, bromide, bicarbonate, acetate, formate, carbonate, lithium, potassium, sodium, calcium, magnesium, zinc, or iron, and combinations thereof; wherein the salt is present in the liquid salt activator in an amount of from about 5 wt. % to about 95 wt. %, based on the total weight of the liquid salt activator; wherein the liquid salt activator has free fluid in a range of from about 0.1 vol. % to about 10 vol. % based on the total volume of the liquid salt activator, after being static at about 70° F. for about 1 week to about seven weeks and wherein the liquid salt activator excludes phosphate.