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US 5,294,651 AGranted
Fluid loss additives for well cementing compositions
AssigneePhillips Petroleum Company
InventorMichael Stephens
Life of this patent
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Abstract
An additive for reducing water loss from cement comprising a tetrapolymer, a base, an electrolyte, at least one surfactant, and water is disclosed. A process for producing cement slurries with improved water loss properties, as well as an improved method for cementing gas and oil well is also disclosed.
Claims6
A composition comprising:
- (a) water,
- (b) cement,
- (c) tetrapolymer wherein said tetrapolymer is the polymerization product of a monomeric mixture containing:
- (i) about 30 weight percent to about 45 weight percent of component A which is selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid and salts of 2-acrylamido-2-methylpropane sulfonic acid;
- (ii) about 20 weight percent to about 28 weight percent of component B which is N-vinyl-2-pyrrolidone;
- (iii) about 15 weight percent to about 35 weight percent of component C which is acrylamide;
- and
- (iv) at least 10 weight percent to about 16 weight percent of component D which is selected from the group consisting of acrylic acid and salts of acrylic acid;
- (d) an electrolyte selected from the group consisting of the sodium, potassium, or ammonium salt of chlorine, bromine, iodine, fluorine, or nitrate;
- (e) a base selected from the group consisting of K.sup.+ OH.sup.-, Na.sup.+ OH.sup.-, or NH.sub.4.sup.+ OH.sup.- ;
- (f) a surfactant selected from the group consisting of
- (i) carboxylates of the formula RCOO.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 9 to 21 carbon atoms and M is selected from the group consisting of sodium, potassium, and lithium;
- (ii) polyalkoxycarboxylates represented by the formula ##STR6## wherein R is selected from the group consisting of alkyl and alkylaryl groups containing from 10 to 21 carbon atoms;
- M is selected from the group consisting of sodium, lithium, or potassium, and n is an integer from 5 to 21;
- (iii) sulfonates of the formula RSO.sub.3.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms;
- M is selected from the groups consisting of sodium, lithium or potassium;
- (iv) alkylbenzene sulfonates represented by the formula
- RC.sub.6 H.sub.4 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium, or potassium;
- (v) lignosulfonates;
- (vi) naphthalene sulfonates of the formula
- RC.sub.10 H.sub.6 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 30 to 10 carbon atoms, and M is selected from the group consisting of sodium, lithium, calcium or potassium;
- (vii) naphthalene sulfonates which have condensed with formaldehyde;
- (viii) alpha-olefin sulfonates of the formula
- RC.dbd.CHSO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium or potassium;
- (ix) poly(ethylene glycol) monomethyl ethers of the formula
- HO--(CH.sub.2 CH.sub.2 --O).sub.x CH.sub.3
- wherein x can very from about 20 to about 225,000;
- (x) polyethylene glycols of the formula
- HO(CH.sub.2 CH.sub.2 --O).sub.x --H
- wherein x can vary from about 20 to about 225,000;
- and
- (xi) alcohol exthoxylates of the formula
- R[OCH.sub.2 CH.sub.2 ].sub.n --OH
- wherein R is selected from the group consisting of alkyl groups containing from 60 to 20 carbon atoms and n is an integer from 2 to 100;
- and
- (g) a preservative.
36 more elements
A composition comprising:
- (a) water,
- (b) cement,
- (c) tetrapolymer wherein said tetrapolymer is the polymerization product of a monomeric mixture containing:
- (i) about 30 weight percent of component A which is selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid and salts of 2-acrylamido-2-methylpropane sulfonic acid;
- (ii) about 10 weight percent of component B which is N-vinyl-2-pyrrolidone;
- (iii) about 5 weight percent of component C which is acrylamide;
- and
- (iv) about 55 weight percent of component D which is selected from the group consisting of acrylic acid and salts of acrylic acid;
- (d) an electrolyte selected from the group consisting of the sodium, potassium, or ammonium salt of chlorine, bromine, iodine, fluorine, or nitrate;
- (e) a base selected from the group consisting of K.sup.+ OH.sup.-, Na.sup.+ OH.sup.-, or NH.sub.4.sup.+ OH.sup.- ;
- (f) a surfactant selected from the group consisting of
- (i) carboxylates of the formula RCOO.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 9 to 21 carbon atoms and M is selected from the group consisting of sodium, potassium, and lithium;
- (ii) polyalkoxycarboxylates represented by the formula ##STR7## wherein R is selected from the group consisting of alkyl and alkylaryl groups containing from 10 to 21 carbon atoms;
- M is selected from the group consisting of sodium, lithium, or potassium, and n is an integer from 5 to 21;
- (iii) sulfonates of the formula RSO.sub.2.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms;
- M is selected from the group consisting of sodium, lithium or potassium;
- (iv) alkylbenzene sulfonates represented by the formula
- RC.sub.6 H.sub.4 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium, or potassium;
- (v) lignosulfonates;
- (vi) naphthalene sulfonates of the formula
- RC.sub.10 H.sub.6 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 30 to 10 carbon atoms, and M is selected from the group consisting of sodium, lithium, calcium or potassium;
- (vii) naphthalene sulfonates which have condensed with formaldehyde;
- (viii) alpha-olefin sulfonates of the formula
- RC.dbd.CHSO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium or potassium;
- (ix) poly(ethylene glycol) monomethyl ethers of the formula
- HO--(CH.sub.2 CH.sub.2 --O).sub.x CH.sub.3
- wherein x can vary from about 20 to about 225,000;
- (x) polyethylene glycols of the formula
- HO(CH.sub.2 CH.sub.2 --O).sub.x --H
- wherein x can vary from about 20 to about 225,000;
- and
- (xi) alcohol exthoxylates of the formula
- R[OCH.sub.2 CH.sub.2 ].sub.n --OH
- wherein R is selected from the group consisting of alkyl groups containing from 60 to 20 carbon atoms and n is an integer from 2 to 100;
- and
- (g) a preservative.
36 more elements
A composition comprising:
- (a) water,
- (b) cement,
- (c) tetrapolymer wherein said tetrapolymer is the polymerization product of a monomeric mixture containing:
- (i) about 30 weight percent to about 45 weight percent of component A which is selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid and salts of 2-acrylamido-2-methylpropane sulfonic acid;
- (ii) about 20 weight percent to about 28 weight percent of component B which is N-vinyl-2-pyrrolidone;
- (iii) about 15 weight percent to about 35 weight percent of component C which is acrylamide;
- and
- (iv) at least 10 weight percent to about 16 weight percent of component D which is selected from the group consisting of acrylic acid and salts of acrylic acid;
- (d) from 0.1 to 37.2 weight percent of an electrolyte selected from the group consisting of the sodium, potassium, or ammonium salt of chlorine, bromine, iodine, fluorine, or nitrate;
- (e) from 0.1 to 3 weight percent of a base selected from the group consisting of K.sup.+ OH.sup.-, Na.sup.+ OH.sup.-, or NH.sub.4.sup.+ OH.sup.- ;
- (f) from 0.1 to 40 weight percent of at least one surfactant selected from the group consisting of
- (i) carboxylates of the formula RCOO.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 9 to 21 carbon atoms and M is selected from the group consisting of sodium, potassium, and lithium;
- (ii) polyalkoxycarboxylates represented by the formula ##STR8## wherein R is selected from the group consisting of alkyl and alkylaryl groups containing from 10 to 21 carbon atoms;
- M is selected from the group consisting of sodium, lithium, or potassium, and n is an integer from 5 to 21;
- (iii) sulfonates of the formula RSO.sub.3.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms;
- M is selected from the group consisting of sodium, lithium or potassium;
- (iv) alkylbenzene sulfonates represented by the formula
- RC.sub.6 H.sub.4 SO.sub.2.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium, or potassium;
- (v) lignosulfonates;
- (vi) naphthalene sulfonates of the formula
- RC.sub.10 H.sub.6 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 30 to 10 carbon atoms, and M is selected from the group consisting of sodium, lithium, calcium or potassium;
- (vii) naphthalene sulfonates which have condensed with formaldehyde;
- (viii) alpha-olefin sulfonates of the formula
- RC.dbd.CHSO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium or potassium;
- (ix) poly(ethylene glycol) monomethyl ethers of the formula
- HO--(CH.sub.2 CH.sub.2 --O).sub.x CH.sub.3
- wherein x can very from about 20 to about 225,000;
- (x) polyethylene glycols of the formula
- HO(CH.sub.2 CH.sub.2 --O).sub.x --H
- wherein x can vary from about 20 to about 225,000;
- and
- (xi) alcohol exthoxylates of the formula
- R[OCH.sub.2 CH.sub.2 ].sub.n --OH
- wherein R is selected from the group consisting of alkyl groups containing from 60 to 20 carbon atoms and n is an integer from 2 to 100;
- and
- (g) from 0.001 to 5 weight percent of a preservative.
36 more elements
A composition comprising:
- (a) water,
- (b) cement,
- (c) tetrapolymer wherein said tetrapolymer is the polymerization product of a monomeric mixture containing:
- (i) about 30 weight percent of component A which is selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid and salts of 2-acrylamido-2-methylpropane sulfonic acid;
- (ii) about 10 weight percent of component B which is N-vinyl-2-pyrrolidone;
- (iii) about 5 weight percent of component C which is acrylamide;
- and
- (iv) about 55 weight percent of component D which is selected from the group consisting of acrylic acid and salts of acrylic acid;
- (d) from 0.1 to 37.2 weight percent of an electrolyte selected from the group consisting of the sodium, potassium, or ammonium salt of chlorine, bromine, iodine, fluorine, or nitrate;
- (e) from 0.1 to 3 weight percent of a base selected from the group consisting of K.sup.+ OH.sup.-, Na.sup.+ OH.sup.-, or NH.sub.4.sup.+ OH.sup.- ;
- (f) from 0.1 to 40 weight percent of at least one surfactant selected from the group consisting of
- (i) carboxylates of the formula RCOO.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 9 to 21 carbon atoms and M is selected from the group consisting of sodium, potassium, and lithium;
- (ii) polyalkoxycarboxylates represented by the formula ##STR9## wherein R is selected from the group consisting of alkyl and alkylaryl groups containing from 10 to 21 carbon atoms;
- M is selected from the group consisting of sodium, lithium, or potassium, and n is an integer from 5 to 21;
- (iii) sulfonates of the formula RSO.sub.3.sup.- M.sup.+ wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms;
- M is selected from the group consisting of sodium, lithium or potassium;
- (iv) alkylbenzene sulfonates represented by the formula
- RC.sub.6 H.sub.4 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium or potassium;
- (v) lignosulfonates;
- (vi) naphthalene sulfonates of the formula
- RC.sub.10 H.sub.6 SO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 30 to 10 carbon atoms, and M is selected from the group consisting of sodium, lithium, calcium or potassium;
- (vii) naphthalene sulfonates which have condensed with formaldehyde;
- (viii) alpha-olefin sulfonates of the formula
- RC.dbd.CHSO.sub.3.sup.- M.sup.+
- wherein R is selected from the group consisting of alkyl groups containing from 10 to 20 carbon atoms and M is selected from the group consisting of sodium, lithium or potassium;
- (ix) poly(ethylene glycol) monomethyl ethers of the formula
- HO--(CH.sub.2 CH.sub.2 --O).sub.x CH.sub.3
- wherein x can very from about 20 to about 225,000;
- (x) polyethylene glycols of the formula
- HO(CH.sub.2 CH.sub.2 --O).sub.x --H
- wherein x can vary from about 20 to about 225,000;
- and
- (xi) alcohol ethoxylates of the formula
- R[OCH.sub.2 CH.sub.2 ].sub.n --OH
- wherein R is selected from the group consisting of alkyl groups containing from 60 to 20 carbon atoms and n is an integer from 2 to 100;
- and
- (g) from 0.001 to 5 weight percent of a preservative.
36 more elements
Dependencies are inferred from the claim text.