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US 5,179,136 AGranted
Gelatin of acrylamide-containing polymers with aminobenzoic acid compounds and water dispersible aldehydes
AssigneePhillips Petroleum Company
InventorAhmad Moradi-Araghi
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Abstract
A novel composition and process are disclosed for forming crosslinked gels at elevated temperatures utilize a novel crosslinking agent comprising at least one aminobenzoic acid compound and a water dispersible aldehyde or aldehyde generating compound.
Claims14
A method of altering the permeability of a porous subterranean formation in fluid communication with a wellbore comprising transmitting into said porous subterranean formation via the fluid communication of said wellbore to said porous subterranean formation,
- (a) a water-soluble polymer present in the range of from about 0.1 weight percent to about 5.0 weight percent wherein said water-soluble polymer contains in the range of about 100 mole percent to about 5 mole percent of at least one monomer of the formula:
- ##STR13## wherein R.sub.1, R.sub.2, and R.sub.3 are selected from the group consisting of hydrogen and alkyl radicals containing from 1 to 3 carbon atoms, and from 0 to 95 mole percent of at least one monomer selected from the group consisting of;
- (i) a monomer which can be represented by the following formula:
- ##STR14## wherein R.sub.4 is selected from the group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms, R.sub.5 is selected from the group consisting of alkylene radicals containing from 1 to 6 carbon atoms and an arylene radicals containing from 6 to 10 carbon atoms, and M is selected from the group consisting of hydrogen, ammonium, potassium, and sodium;
- (ii) a monomer represented by the following formula:
- ##STR15## where R.sub.6, R.sub.7 and R.sub.8 are independently selected from the group consisting of hydrogen and alkyl radicals containing from 1 to 2 carbon atoms;
- (iii) a monomer selected from the group consisting of acrylic acid, sodium acrylate, potassium acrylate, ammonium acrylate, methacrylic acid, sodium methacrylate, potassium methacrylate, ammonium methacrylate, vinylsulfonic acid, sodium vinylsulfonate, potassium vinylsulfonate, ammonium vinylsulfonate, vinylbenzylsulfonic acid, sodium vinylbenzylsulfonate, potassium vinylbenzylsulfonate, ammonium vinylbenzylsulfonate, vinyl acetate, acrylonitrile, methacrylonitrile, vinyl alkyl ether, vinyl chloride, maleic anhydride, vinyl substituted cationic quaternary ammonium compounds, and (acryloyloxyethyl)diethylmethylammonium methyl sulfate;
- and mixtures of any two or more thereof;
- (b) a water dispersible aldehyde or aldehyde generating compound present in the range of about 0.005 to about 5.0 weight percent
- (c) at least one aminobenzoic acid compound present in the range of from about 0.005 to about 5.0 weight percent of the formula:
- ##STR16## wherein R.sub.9, R.sub.10, R.sub.11, R.sub.12 and R.sub.13, are selected from the group consisting of hydrogen, carboxyl, amino radicals;
- and at least one R.sub.9, R.sub.11, and R.sub.13, radical must be a carboxyl radical;
- and
- (d) water present in the range of from about 85 to about 99.89 weight percent;
- and
- allowing the water-soluble polymer, water dispersible aldehyde or aldehyde generating compound, aminobenzoic acid compounds and water to form a gel in said porous subterranean formation.
13 more elements
A gel composition produced from the gelation of the following components:
- (a) a water-soluble polymer present in the range of from about 0.1 weight percent to about 5.0 weight percent wherein said water-soluble polymer contains in the range of about 100 mole percent to about 5 mole percent of at least one monomer of the formula:
- ##STR17## wherein R.sub.1, R.sub.2, and R.sub.3 are selected from the group consisting of hydrogen or alkyl radicals containing from 1 to 3 carbon atoms, and from 0 to 95 mole percent of at least one monomer selected from the group consisting of;
- (i) those monomers which can be represented by the following formula:
- ##STR18## wherein R.sub.4 is selected from the group consisting of hydrogen or alkyl radicals containing from 1 to 6 carbon atoms, R.sub.5 is selected from the group consisting of alkylene radicals containing from 1 to 6 carbon atoms or an arylene radicals containing from 6 to 10 carbon atoms, and M is selected from the group consisting of hydrogen, ammonium, potassium, or sodium, or
- (ii) a monomer represented by the following formula:
- ##STR19## wherein R.sub.6, R.sub.7, and R.sub.8 are independently selected from the group consisting of hydrogen or alkyl radicals containing from 1 to 2 carbon atoms, or
- (iii) a monomer selected from the group consisting of acrylic acid, sodium acrylate, potassium acrylate, ammonium acrylate, methacrylic acid, sodium methacrylate, potassium methacrylate, ammonium methacrylate, vinylsulfonic acid, sodium vinylsulfonate, potassium vinylsulfonate, ammonium vinylsulfonate, vinylbenzylsulfonic acid, sodium vinylbenzylsulfonate, potassium vinylbenzylsulfonate, ammonium vinylbenzylsulfonate, vinyl acetate, acrylonitrile, methacrylonitrile, vinyl alkyl ether, vinyl chloride, maleic anhydride, vinyl substituted cationic quaternary ammonium compounds, and (acryloyloxyethyl)diethylmethylammonium methyl sulfate;
- and combinations of any two or more thereof;
- (b) a water dispersible aldehyde present in the range of about 0.005 to about 5.0 weight percent;
- (c) at least one aminobenzoic acid compounds present in the range of from about 0.005 to about 5.0 weight percent of the formula:
- ##STR20## wherein R.sub.9, R.sub.10, R.sub.11, R.sub.12 and R.sub.13, are hydrogen, carboxyl, and amino radicals;
- and at least one R.sub.9, R.sub.11, and R.sub.13, radical must be carboxyl radical;
- and
- (d) water present in the range of from about 85 to about 99.89 weight percent.
11 more elements
Dependencies are inferred from the claim text.