IP Library Granted Patent US 8,689,872
Granted Patent B2
US 8,689,872 · App. 11/782,190 · Granted Apr 8, 2014

Methods and compositions for controlling formation fines and reducing proppant flow-back

Inventors: Thomas D. Welton (Duncan, OK); Philip D. Nguyen (Duncan, OK)
Assignee: Halliburton Energy Services, Inc.
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Quick Facts
Patent No.
US 8,689,872
App. No.
11/782,190
Granted
Apr 8, 2014
Kind
B2
Abstract

Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions.

Claims (12)

1. A remedial method of controlling particulates within at least a portion of a subterranean formation, the method comprising:

placing an aqueous tackifying treatment fluid into at least a portion of a subterranean formation, the portion of the subterranean formation comprising a proppant pack within a portion of a fracture that was previously created during a separate stimulation operation;

wherein the aqueous tackifying treatment fluid comprises an aqueous tackifying agent selected from the group consisting of: a charged polymer; an acrylic acid polymer; an acrylic acid ester 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; and any combination thereof;

subsequent to placing the aqueous tackifying treatment fluid, placing a resin composition comprising a solvent into the portion of the subterranean formation such that the resin composition does not penetrate the entire proppant pack;

wherein the resin composition comprises at least one curable resin or at least one non-curable resin;

wherein the at least one curable resin, if selected, comprises at least one resin selected from the group consisting of: a two component epoxy-based resin; a novolak resin; a polyepoxide resin; a phenol-aldehyde resin; a urea-aldehyde resin; a furan resin; a furan/furfuryl alcohol resin; a phenolic/latex resin; a phenol formaldehyde resin; an acrylate resin; and any combination thereof; and

wherein the at least one non-curable resin, if selected, comprises at least one noncurable resin selected from the group consisting of: a condensation reaction product comprised of a polyacid and a polyamine; a polyamine; a polyacid; a trimer acid; a synthetic acid produced from a fatty acid; maleic anhydride; acrylic acid; an aldehyde; formaldehyde; a dialdehyde; glutaraldehyde; a hemiacetal; an aldehyde releasing compound; a diacid halide; a dihalide; a dichloride; a dibromide; a polyacid anhydride; citric acid; an epoxide; a furfuraldehyde; an aldehyde condensate; a silyl-modified polyamide; and any combination thereof; and

forming a consolidated proppant pack after contacting the proppant pack with the aqueous tackifying agent and the resin composition.

2. The method of claim 1 wherein the resin composition has a viscosity of about 100 centipoise or less.

3. The method of claim 1 wherein the aqueous tackifying treatment fluid comprises at least one element selected from the group consisting of: a gelling agent; a scale inhibitor; a breaker; an enzyme; a surfactant; a gas; a foaming agent; a solvent; an activator; and any combination thereof.

4. The method of claim 1 wherein the resin composition comprises at least one solvent selected from the group consisting of: butyl lactate; butylglycidyl ether; dipropylene glycol methyl ether; dipropylene glycol dimethyl ether; dimethyl formamide; diethyleneglycol methyl ether; ethyleneglycol butyl ether; diethyleneglycol butyl ether; propylene carbonate; methanol; butyl alcohol; d-limonene; a fatty acid methyl ester; an aqueous dissolvable solvent; isopropanol; butanol; a glycol ether solvent; 2-butoxy ethanol; an ether of a C 2 to C 6 dihydric alkanol containing at least one C 1 to C 6 alkyl group; a mono ether of dihydric alkanol; methoxypropanol; butoxyethanol; hexoxyethanol; and any combination thereof.

5. The method of claim 1 herein the resin composition comprises at least one solvent selected from the group consisting of: butylglycidyl ether; dipropylene glycol methyl ether; butyl bottom alcohol; dipropylene glycol dimethyl ether; diethyleneglycol methyl ether; ethyleneglycol butyl ether; methanol; butyl alcohol; isopropyl alcohol; diethyleneglycol butyl ether; propylene carbonate; d-limonene; 2-butoxy ethanol; butyl acetate; furfuryl acetate; butyl lactate; dimethyl sulfoxide; dimethyl formamide; a fatty acid methyl ester; and any combination thereof.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2008
From: WELTON, THOMAS D.; NGUYEN, PHILIP D.
To: KENT, ROBERT A.
Reel/Frame 022048/0305 →
Continuity (2)
Continuation 11178896 · Jul 11, 2005
Related Publication 20080011478A1 · Jan 17, 2008