IP Library Granted Patent US 7,595,280
Granted Patent B2
US 7,595,280 · App. 11/205,333 · Granted Sep 29, 2009

Delayed tackifying compositions and associated methods involving controlling particulate migration

Assignee: Halliburton Energy Services, Inc.
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Quick Facts
Patent No.
US 7,595,280
App. No.
11/205,333
Granted
Sep 29, 2009
Kind
B2
Abstract

Delayed tackifying compositions are provided for reducing particulate migration in subterranean formations, the compositions comprising an aqueous tackifying agent and a delayed-acid releasing activator.

Claims (12)

1. A plurality of proppant particulates coated with a delayed tackifying composition that comprises an aqueous tackifying agent and a delayed acid-releasing activator capable of activating the aqueous tackifying agent, the delayed-acid releasing activator comprising at least one material selected from the group consisting of an orthoacetate; trimethyl orthoacetate; triethyl orthoacetate; tripropyl orthoacetate; triisopropyl orthoacetate; tributyl orthoacetate; a poly(orthoacetate); an orthoformate; trimethyl orthoformate; triethyl orthoformate; tripropyl orthoformate; triisopropyl orthoformate; tributyl orthoformate; a poly(orthoformate); a orthopropionate; trimethyl orthopropionate; triethyl orthopropionate; tripropyl orthopropionate; triisopropyl orthopropionate; tributyl orthopropionate; a poly(orthopropionate); and an orthoester of a polyfunctional alcohol.

2. The proppant particulates of claim 1 wherein at least one of the proppant particulates is selected from the group consisting of: sand; bauxite; ceramic materials; glass materials; resin precoated proppant; polymer materials; tetrafluoroethylene materials; nut shells; nut shell pieces; fruit pit pieces; processed wood particles; composite particulates prepared from a binder with a filler particulate; silica; alumina; fumed carbon; carbon black; graphite; mica; titanium dioxide; meta-silicate; calcium silicate; kaolin; talc; zirconia; boron; fly ash; hollow glass microspheres; and mixtures thereof.

3. The proppant particulates of claim 1 wherein the aqueous tackifying agent is selected from the group consisting of: an acrylic acid polymer; an acrylic acid ester polymer; an acrylic acid derivative polymer; an acrylic acid homopolymer; an acrylic acid ester homopolymer; poly(methyl acrylate); poly (butyl acrylate); poly(2-ethylhexyl acrylate); an acrylic acid ester co-polymer; a methacrylic acid derivative polymer; a methacrylic acid homopolymer; a methacrylic acid ester homopolymer; poly(methyl methacrylate); poly(butyl methacrylate); poly(2-ethylhexyl methacrylate); an acrylamido-methyl-propane sulfonate polymer; an acrylamido-methyl-propane sulfonate derivative polymer; an acrylamido-methyl-propane sulfonate co-polymer; an acrylic acid/acrylamido-methyl-propane sulfonate co-polymer; benzyl coco di-(hydroxyethyl) quaternary amine; p-T-amyl-phenol condensed with formaldehyde; a copolymer comprising from about 80% to about 100% C 1-30 alkylmethacrylate monomers and from about 0% to about 20% hydrophillic monomers; and any combination thereof.

4. A treatment fluid for use in subterranean formation for controlling particulate migration comprising an aqueous base fluid, and a plurality of proppant particulates coated with a delayed tackifying composition, the delayed tackifying composition comprising an aqueous tackifying agent and a delayed acid-releasing activator capable of activating the aqueous tackifying agent, wherein the delayed-acid releasing activator comprises at least one material selected from the group consisting of: an orthoacetate; trimethyl orthoacetate; triethyl orthoacetate; tripropyl orthoacetate; triisopropyl orthoacetate; tributyl orthoacetate; a poly(orthoacetate); an orthoformate; trimethyl orthoformate; triethyl orthoformate; tripropyl orthoformate; triisopropyl orthoformate; tributyl orthoformate; a poly(orthoformate); a orthopropionate; trimethyl orthopropionate; triethyl orthopropionate; tripropyl orthopropionate; triisopropyl orthopropionate; tributyl orthopropionate; a poly(orthopropionate); and an orthoester of a polyfunctional alcohol.

5. The treatment fluid of claim 4 wherein the treatment fluid is a fracturing fluid or a gravel pack fluid.

6. The treatment fluid of claim 4 wherein the treatment fluid is a foamed treatment fluid.

7. The treatment fluid of claim 4 wherein the treatment fluid comprises a component selected from the group consisting of: fresh water; salt water; brines; seawater; a foaming agent; an alkylamidobetaine; cocoamidopropyl betaine; alpha-olefin sulfonate; trimethyltallowammonium chloride; C 8 to C 22 alkylethoxylate sulfate; trimethylcocoammonium chloride; a gelling agent; a natural biopolymer; a synthetic polymer; a crosslinked gelling agent; a viscoelastic surfactant; guar; xanthan; a polysaccharide; a depolymerized gelling agent; and a breaker.

8. The treatment fluid of claim 4 wherein the treatment fluid comprises a delayed tackifying composition that comprises an additive selected from the group consisting of: a gelling agent; a buffering agent; a surfactant; a breaker; an enzyme; a chelator; a foam control agent; an acid; an inhibitor; and a scale inhibitor.

9. The treatment fluid of claim 4 wherein the treatment fluid comprises an aqueous tackifying agent that comprises a polymer that can bind, coagulate, or flocculate a particulate in a subterranean formation.

10. The treatment fluid of claim 4 wherein the treatment fluid comprises an aqueous tackifying agent that is selected from the group consisting of: an acrylic acid polymer; an acrylic acid ester polymer; an acrylic acid derivative polymer; an acrylic acid homopolymer; an acrylic acid ester homopolymer; poly(methyl acrylate); poly (butyl acrylate); poly(2-ethylhexyl acrylate); an acrylic acid ester co-polymer; a methacrylic acid derivative polymer; a methacrylic acid homopolymer; a methacrylic acid ester homopolymer; poly(methyl methacrylate); poly(butyl methacrylate); poly(2-ethylhexyl methacrylate); an acrylamido-methyl-propane sulfonate polymer; an acrylamido-methyl-propane sulfonate derivative polymer; an acrylamido-methyl-propane sulfonate co-polymer; an acrylic acid/acrylamido-methyl-propane sulfonate co-polymer; any derivative thereof; and any combination thereof.

11. The treatment fluid of claim 4 wherein the treatment fluid comprises an aqueous tackifying agent that is selected from the group consisting of: benzyl coco di-(hydroxyethyl) quaternary amine; p-T-amyl-phenol condensed with formaldehyde; and a copolymer comprising from about 80% to about 100% C 1-30 alkylmethacrylate monomers and from about 0% to about 20% hydrophillic monomers.

12. The treatment fluid of claim 4 wherein the treatment fluid comprises an aqueous tackifying agent that comprises from about 0.01% to about 10% of the delayed tackifying composition.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 16, 2005
From: WELTON, THOMAS D.; MCMECHAN, DAVID; TODD, BRADLEY L.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 016898/0921 →
Continuity (1)
Related Publication 20070042912A1 · Feb 22, 2007