US 8,555,973 B2 · Methods and compositions for controlling formation fines and reducing proppant flow-back

Abstract

Remedial methods of controlling particulates within a subterranean formation comprising first, placing a resin composition into an unconsolidated zone of a subterranean formation; and second, placing an aqueous tackifying treatment fluid that comprises an aqueous tackifying agent into the unconsolidated zone. The resin may be curable or noncurable. The aqueous tackifying agent is 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.

Claims13

Dependent claims

A remedial method of controlling particulates within a subterranean formation comprising:

first, placing a liquid resin composition into an unconsolidated zone of a subterranean formation such that the liquid resin penetrates into the subterranean formation to a distance of from about one to about three wellbore diameters;
and
second, placing an aqueous tackifying treatment fluid that comprises an aqueous tackifying agent into the unconsolidated zone;
wherein the aqueous tackifying agent is selected from the group consisting of:
poly(methyl acrylate);
poly(butyl acrylate);
poly(2-ethylhexyl acrylate);
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 derivative polymer;
an acrylic acid/acrylamido-methyl-propane sulfonate co-polymer;
and any combination thereof.

13 more elements

A remedial method of controlling particulates within a subterranean formation comprising:

first, placing a liquid resin composition into an unconsolidated zone of a subterranean formation, the resin composition comprising a curable resin and a solvent such that the liquid resin penetrates into the subterranean formation to a distance of from about one to about three wellbore diameters;
wherein the curable 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 urethane resin;
a phenolic resin;
a furan resin;
a furan/furfuryl alcohol resin;
a phenolic/latex resin;
a phenol formaldehyde resin;
a polyester resin;
a hybrid polyester resin;
a polyester copolymer resin;
a polyurethane resin;
a hybrid polyurethane resin;
a polyurethane copolymer resin;
an acrylate resin;
and any combination thereof;
wherein the solvent is 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;
methanol;
isopropanol;
butanol;
a glycol ether solvent;
diethylene glycol methyl ether;
dipropylene glycol methyl ether;
2-butoxy ethanol;
an ether of a C2 to C6 dihydric alkanol containing at least one C1 to C6 alkyl group;
a mono ether of dihydric alkanol;
methoxypropanol;
butoxyethanol;
hexoxyethanol;
and any combination thereof;
and,
second, placing an aqueous tackifying treatment fluid that comprises an aqueous tackifying agent into the unconsolidated zone;
wherein the aqueous tackifying agent is selected from the group consisting of:
poly(methyl acrylate);
poly(butyl acrylate);
poly(2-ethylhexyl acrylate);
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 derivative polymer;
an acrylic acid/acrylamido-methyl-propane sulfonate co-polymer;
and any combination thereof.

61 more elements

A remedial method of controlling particulates within a subterranean formation comprising:

first, placing a liquid resin composition into an unconsolidated zone of a subterranean formation, the resin composition comprising a noncurable resin and a solvent such that the liquid resin penetrates into the subterranean formation to a distance of from about one to about three wellbore diameters;
and
wherein the 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;
a polyester;
a polycarbonate;
a polycarbamate;
a natural resin;
shellac;
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;
wherein the solvent is selected from the group consisting of:
butylglycidyl ether;
dipropylene glycol methyl ether;
butyl bottom alcohol;
dipropylene glycol dimethyl ether;
diethylene 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;
and,
second, placing an aqueous tackifying treatment fluid that comprises an aqueous tackifying agent into the unconsolidated zone;
wherein the aqueous tackifying agent is selected from the group consisting of:
poly(methyl acrylate);
poly(butyl acrylate);
poly(2-ethylhexyl acrylate);
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 derivative polymer;
an acrylic acid/acrylamido-methyl-propane sulfonate co-polymer;
and any combination thereof.

65 more elements

Dependencies are inferred from the claim text.

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

Life of this patent

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

Life of this patent

Abstract

Claims13