Patent
US 10,036,239GRAPHENE ENHANCED POLYMER COMPOSITES AND METHODS THEREOF
Rajender Salla
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,036,239Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1, the samples prepared according to Example 1 (" 10 % NGP HZ. 001 ") and Control 1 ("HZ Neat. 001") were heated at a rate of 5 ° C/min to 10 ° C/min for 1.5 hours to temperatures that included 201 °C + 1 C. During this time, the weight of the sample prepared according to Example 1 was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide. Withdrawn
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyether is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybu t ylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic monomer is selected from acrylamide, 2- ac rylamido-2-methyl propane sulfonic acid, N,N-dimethyla c rylamide, vinyl pyrrolidone, dimethylaminoethyl metha c rylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, t r imethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl metha c rylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a fun c tionalized graphene, a graphene oxide, and combinations thereof. Original
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 mn to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
A method of reducing water permeability of a wel l bore in a subterranean formation, comprising: introducing a relative permeability modifier comprising a graphene-enhanced polymer composite into the wel l bore; the graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The method of claim 11, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The method of claim 11, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide, or wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyeth e r is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybutylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophilic monomer is selected from acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N-dimethylacrylamide, vinyl pyrrolidone, dimethylaminoethyl methacrylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, trimethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl methacrylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The method of claim 11, wherein the nano-graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a functionalized graphene, a graphene oxide, and combinations thereof. Original
The method of claim 11, wherein the nano-graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 nm to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
The method of claim 11, further comprising, before introducing the relative permeability modifier, locating a lost circulation zone in the wellbore by applying a detection method to the wellbore, wherein the detection method is at least one selected from the group consisting of magnetic resonance imaging, resistivity imaging, gamma ray imaging, neutron density imaging, sonic imaging, and caliper imaging. Original
The method of claim 11, wherein the relative pe rm eability modifier is introduced during or after completion of the we l lbore, and before production of the wellbore. Original
The method of claim 11, further comprising, detecting degradation of the graphene-enhanced polymer composite during production by applying at least one of UV spectros c opy, IR spectroscopy, and Raman spectroscopy to a production fluid. Original
Materials described outside the worked examples.
nano-graphene material
cross-linked polymer
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1–100 nm | — |
Thickness |
Patent
Atlas literature
Patent
US 10,036,239Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1, the samples prepared according to Example 1 (" 10 % NGP HZ. 001 ") and Control 1 ("HZ Neat. 001") were heated at a rate of 5 ° C/min to 10 ° C/min for 1.5 hours to temperatures that included 201 °C + 1 C. During this time, the weight of the sample prepared according to Example 1 was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide. Withdrawn
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyether is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybu t ylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic monomer is selected from acrylamide, 2- ac rylamido-2-methyl propane sulfonic acid, N,N-dimethyla c rylamide, vinyl pyrrolidone, dimethylaminoethyl metha c rylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, t r imethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl metha c rylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a fun c tionalized graphene, a graphene oxide, and combinations thereof. Original
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 mn to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
A method of reducing water permeability of a wel l bore in a subterranean formation, comprising: introducing a relative permeability modifier comprising a graphene-enhanced polymer composite into the wel l bore; the graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The method of claim 11, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The method of claim 11, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide, or wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyeth e r is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybutylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophilic monomer is selected from acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N-dimethylacrylamide, vinyl pyrrolidone, dimethylaminoethyl methacrylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, trimethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl methacrylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The method of claim 11, wherein the nano-graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a functionalized graphene, a graphene oxide, and combinations thereof. Original
The method of claim 11, wherein the nano-graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 nm to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
The method of claim 11, further comprising, before introducing the relative permeability modifier, locating a lost circulation zone in the wellbore by applying a detection method to the wellbore, wherein the detection method is at least one selected from the group consisting of magnetic resonance imaging, resistivity imaging, gamma ray imaging, neutron density imaging, sonic imaging, and caliper imaging. Original
The method of claim 11, wherein the relative pe rm eability modifier is introduced during or after completion of the we l lbore, and before production of the wellbore. Original
The method of claim 11, further comprising, detecting degradation of the graphene-enhanced polymer composite during production by applying at least one of UV spectros c opy, IR spectroscopy, and Raman spectroscopy to a production fluid. Original
Materials described outside the worked examples.
nano-graphene material
cross-linked polymer
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1–100 nm | — |
Thickness |
Patent
Atlas literature
Patent
US 10,036,239Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1, the samples prepared according to Example 1 (" 10 % NGP HZ. 001 ") and Control 1 ("HZ Neat. 001") were heated at a rate of 5 ° C/min to 10 ° C/min for 1.5 hours to temperatures that included 201 °C + 1 C. During this time, the weight of the sample prepared according to Example 1 was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide. Withdrawn
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyether is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybu t ylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic monomer is selected from acrylamide, 2- ac rylamido-2-methyl propane sulfonic acid, N,N-dimethyla c rylamide, vinyl pyrrolidone, dimethylaminoethyl metha c rylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, t r imethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl metha c rylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a fun c tionalized graphene, a graphene oxide, and combinations thereof. Original
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 mn to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
A method of reducing water permeability of a wel l bore in a subterranean formation, comprising: introducing a relative permeability modifier comprising a graphene-enhanced polymer composite into the wel l bore; the graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The method of claim 11, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The method of claim 11, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide, or wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyeth e r is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybutylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophilic monomer is selected from acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N-dimethylacrylamide, vinyl pyrrolidone, dimethylaminoethyl methacrylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, trimethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl methacrylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The method of claim 11, wherein the nano-graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a functionalized graphene, a graphene oxide, and combinations thereof. Original
The method of claim 11, wherein the nano-graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 nm to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
The method of claim 11, further comprising, before introducing the relative permeability modifier, locating a lost circulation zone in the wellbore by applying a detection method to the wellbore, wherein the detection method is at least one selected from the group consisting of magnetic resonance imaging, resistivity imaging, gamma ray imaging, neutron density imaging, sonic imaging, and caliper imaging. Original
The method of claim 11, wherein the relative pe rm eability modifier is introduced during or after completion of the we l lbore, and before production of the wellbore. Original
The method of claim 11, further comprising, detecting degradation of the graphene-enhanced polymer composite during production by applying at least one of UV spectros c opy, IR spectroscopy, and Raman spectroscopy to a production fluid. Original
Materials described outside the worked examples.
nano-graphene material
cross-linked polymer
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1–100 nm | — |
Thickness |
Patent
Atlas literature
Patent
US 10,036,239Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1, the samples prepared according to Example 1 (" 10 % NGP HZ. 001 ") and Control 1 ("HZ Neat. 001") were heated at a rate of 5 ° C/min to 10 ° C/min for 1.5 hours to temperatures that included 201 °C + 1 C. During this time, the weight of the sample prepared according to Example 1 was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide. Withdrawn
The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyether is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybu t ylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophilic monomer is selected from acrylamide, 2- ac rylamido-2-methyl propane sulfonic acid, N,N-dimethyla c rylamide, vinyl pyrrolidone, dimethylaminoethyl metha c rylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, t r imethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The graphene-enhanced polymer composite of claim 1, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl metha c rylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a fun c tionalized graphene, a graphene oxide, and combinations thereof. Original
The graphene-enhanced polymer composite of claim 1, wherein the nano- graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 mn to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
A method of reducing water permeability of a wel l bore in a subterranean formation, comprising: introducing a relative permeability modifier comprising a graphene-enhanced polymer composite into the wel l bore; the graphene-enhanced polymer composite comprising: from about 0.01% w/v to about 10% w/v of a nano-graphene material; and a cross-linked polymer, wherein the cross-linked polymer is: a reaction product of (1) a hydrophilic reactive polymer and (2) (a) a hydrophobic compound or (b) a hydrophilic compound, wherein the hydrophilic reactive polymer comprises a reactive amino group, or a copolymerization product of (1) a hydrophilic monomer and (2) a hydrophobically modified hydrophilic monomer. Original
The method of claim 11, wherein the hydrophilic reactive polymer is selected from polyethyleneimine, polyvinylamine, polyamine, poly(vinylamine/vinyl alcohol), chitosan, polylysine, and an alkyl acrylate polymer. Currently amended
The method of claim 11, wherein the hydrophobic compound comprises at least one of an alkyl halide having from about 4 to about 30 carbons and a bisphenol epoxide, or wherein the hydrophilic compound comprises an acrylamide-co-acrylate ester copolymer, or a halogen containing polyether, wherein the polyeth e r is selected from the group consisting of polyethylene oxide, polypropylene oxide, polybutylene oxide, and mixtures thereof. Original
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophilic monomer is selected from acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N-dimethylacrylamide, vinyl pyrrolidone, dimethylaminoethyl methacrylate, acrylic acid, dimethylaminopropylmethacrylamide, vinyl amine, trimethylammoniumethyl methacrylate chloride, methacrylamide, and hydroxyethyl acrylate. Currently amended
(Withdrawn-Currently Amended) The method of claim 11, wherein the hydrophobically modified hydrophilic monomer is selected from alkyl acrylates, alkyl methacrylates, alkyl acrylamides, alkyl methacrylamides, alkyl dimethylammoniumethyl methacrylate bromide, alkyl dimethylammoniumethyl methacrylate chloride, alkyl dimethylammoniumethyl methacrylate iodide, alkyl dimethylammoniumpropyl methacrylamide bromide, alkyl dimethylammoniumpropyl methacrylamide chloride, and alkyl dimethylammoniumpropyl methacrylamide iodide, wherein the alkyl groups have from about 4 to about 22 carbon atoms. Currently amended
The method of claim 11, wherein the nano-graphene material comprises a nano-graphene plate powder, a nano-graphene ribbon, a functionalized graphene, a graphene oxide, and combinations thereof. Original
The method of claim 11, wherein the nano-graphene materials comprise a nano-graphene plate powder having a particle size of from about 30 nm to about 300 nm and a particle thickness of from about 1 nm to about 100 nm. Original
The method of claim 11, further comprising, before introducing the relative permeability modifier, locating a lost circulation zone in the wellbore by applying a detection method to the wellbore, wherein the detection method is at least one selected from the group consisting of magnetic resonance imaging, resistivity imaging, gamma ray imaging, neutron density imaging, sonic imaging, and caliper imaging. Original
The method of claim 11, wherein the relative pe rm eability modifier is introduced during or after completion of the we l lbore, and before production of the wellbore. Original
The method of claim 11, further comprising, detecting degradation of the graphene-enhanced polymer composite during production by applying at least one of UV spectros c opy, IR spectroscopy, and Raman spectroscopy to a production fluid. Original
Materials described outside the worked examples.
nano-graphene material
cross-linked polymer
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1–100 nm | — |
Thickness |
hydrophilic reactive polymer
hydrophobic compound
hydrophilic compound
hydrophilic monomer
hydrophobically modified hydrophilic monomer
nano-graphene plate powder
nano-graphene ribbon
functionalized graphene
graphene oxide
| 30–300 nm |
| — |
hydrophilic reactive polymer
hydrophobic compound
hydrophilic compound
hydrophilic monomer
hydrophobically modified hydrophilic monomer
nano-graphene plate powder
nano-graphene ribbon
functionalized graphene
graphene oxide
| 30–300 nm |
| — |
hydrophilic reactive polymer
hydrophobic compound
hydrophilic compound
hydrophilic monomer
hydrophobically modified hydrophilic monomer
nano-graphene plate powder
nano-graphene ribbon
functionalized graphene
graphene oxide
| 30–300 nm |
| — |
hydrophilic reactive polymer
hydrophobic compound
hydrophilic compound
hydrophilic monomer
hydrophobically modified hydrophilic monomer
nano-graphene plate powder
nano-graphene ribbon
functionalized graphene
graphene oxide
| 30–300 nm |
| — |