Fluid diversion composition in well stimulation
AssigneeChampionX USA Inc.
InventorsDaniel Dreyer, Vyacheslav Boyraskikh, Yuntao Thomas Hu, Pious Kurian, Joseph Paul Street, Narongsak Tonmukayakul, Kin-Tai Chang
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Abstract
Described are methods and compositions for treating a subterranean formation. The method comprising introducing into the subterranean formation via a well-bore a diverter composition, the diverter composition comprising a combination of at least one deformable particle and at least one non-deformable particle; and allowing the diverter composition to block the flow of at least a portion of a treatment fluid from a first location within the well-bore to a second location.
Claims9
A method for treating a subterranean formation, comprising:
- introducing into the subterranean formation via a well-bore a first treatment fluid comprising a diverter composition, the diverter composition comprising:
- a combination of deformable particles and non-deformable particles,
- wherein the deformable particles are present from about 1 wt % to about 99 wt % of the diverter composition and wherein the deformable particles and non-deformable particles are degradable, and
- wherein the deformable particles are selected from crosslinked copolymers of acrylamide, acrylate, and vinylformamide monomers;
- starch grafted with acrylonitrile and acrylate monomers;
- crosslinked polymers of two or more of allylsulfonates;
- 2-acrylamido-2-methyl-1-propanesulfonic acid;
- 3-allyloxy-2-hydroxy-1-propane-sulfonic acid, diallyl-dimethylammonium salts;
- benzyl-diallylmethylammonium salts;
- methacrylamidopropyltrimethylammonium salts, acrylamidopropyltrimethylammonium salts;
- and any combination thereof, and
- wherein the non-deformable polymers are selected from polyesters;
- polyamides;
- polyethers;
- polycarbonates;
- polyurethanes;
- peptides, polypeptides;
- urea-formaldehyde copolymer;
- poly(lactic acid);
- polyethylene terephthalate;
- and combinations thereof;
- and
- allowing the diverter composition to block the flow of at least a portion of the first treatment fluid from a first location within the well-bore diverting flow to a second location.
Dependencies are inferred from the claim text.