Patents by Inventor Abhijit Tarafdar
Abhijit Tarafdar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10766825Abstract: A composition comprising a self-dispersible mixture additive composition comprising a alkylalkoxysilane of formula (RO)4-nSiR?n, or its hydrolysate or mixture thereof, where, R is same or different C1-C20, R? is same or different C1-C20; mixture of non-ionic emulsifier of HLB value between 8 and 20. The self-dispersible mixture additive composition is obtained by mixing the alkyltrialkoxysilane with a mixture of non-ionic emulsifier. The emulsion of the self-dispersible mixture additive composition is formed by mixing appropriate amount of an aqueous solvent to the self-dispersible mixture additive composition, and addition of thus formed emulsion to a porous product preferably dry cement to render uniform and long lasting hydrophobic property of the final product made of the porous product.Type: GrantFiled: October 12, 2016Date of Patent: September 8, 2020Assignee: WACKER METROARK CHEMICALS PVT. LTD.Inventors: Amit Kumar Paul, Abhijit Tarafdar
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Publication number: 20180282234Abstract: A composition comprising a self-dispersible mixture additive composition comprising a alkylalkoxysilane of formula (RO)4-nSiR?n, or its hydrolysate or mixture thereof, where, R is same or different C1-C20, R? is same or different C1-C20; mixture of non-ionic emulsifier of HLB value between 8 and 20. The self-dispersible mixture additive composition is obtained by mixing the alkyltrialkoxysilane with a mixture of non-ionic emulsifier. The emulsion of the self-dispersible mixture additive composition is formed by mixing appropriate amount of an aqueous solvent to the self-dispersible mixture additive composition, and addition of thus formed emulsion to a porous product preferably dry cement to render uniform and long lasting hydrophobic property of the final product made of the porous product.Type: ApplicationFiled: October 12, 2016Publication date: October 4, 2018Applicant: WACKER METROARK CHEMICALS PVT. LTD.Inventors: Amit Kumar PAUL, Abhijit TARAFDAR
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Patent number: 9006152Abstract: Methods and compositions are provided that relate to cement compositions comprising sub-micron calcium carbonate and latex. An embodiment includes a cement composition comprising: cement, water, sub-micron calcium carbonate having a particle size in a range of from greater than 100 nanometers to about 1 micron, and latex.Type: GrantFiled: February 28, 2012Date of Patent: April 14, 2015Assignee: Halliburton Energy Services, Inc.Inventors: Rahul Chandrakant Patil, Abhijit Tarafdar, Abhimanyu Deshpande, Christopher L. Gordon
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Patent number: 8877692Abstract: A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid: (A) comprises the continuous phase of the well treatment composition; and (B) comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive: (A) is insoluble in the organic liquid; and (B) comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.Type: GrantFiled: April 27, 2012Date of Patent: November 4, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Abhijit Tarafdar, Remitha Ak
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Patent number: 8869895Abstract: Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, fumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition maintained under a temperature condition of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition maintained under a temperature condition of 217° F.Type: GrantFiled: December 8, 2009Date of Patent: October 28, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Girish Dinkar Sarap, Sandip Prabhakar Patil, Dibyadarshani Senapati, Abhijit Tarafdar
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Patent number: 8741817Abstract: A well treatment composition comprises: an aqueous liquid; a fluid loss additive, wherein the fluid loss additive comprises a high molecular weight, water-swellable polymer; and an amphiphilic dispersant, wherein the well treatment composition has an activity of at least 10%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set.Type: GrantFiled: July 19, 2012Date of Patent: June 3, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Abhijit Tarafdar, Remitha Ak, Rahul Chandrakant Patil, Vikrant Wagle
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Patent number: 8728231Abstract: Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, fumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing.Type: GrantFiled: March 29, 2012Date of Patent: May 20, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Girish Dinkar Sarap, Sandip Prabhakar Patil, Dibyadarshani Senapati, Abhijit Tarafdar
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Patent number: 8598093Abstract: Methods and compositions are provided that may comprise cement, a nano-particle, latex, and water. An embodiment of the present invention includes a method of cementing in a subterranean formation. The method may include introducing a cement composition into the subterranean formation, wherein the cement composition comprises cement, a nano-particle, latex, and water. The method further may include allowing the cement composition to set in the subterranean formation. Another embodiment of the present invention include a cement composition. The cement composition may comprise cement, a nano-particle, latex, and water.Type: GrantFiled: July 9, 2010Date of Patent: December 3, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Craig W. Roddy, Jiten Chatterji, Roger Cromwell, Rahul Chandrakant Patil, Abhijit Tarafdar, Abhimanyu Deshpande, Christopher L. Gordon
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Patent number: 8536101Abstract: A cement composition or method of using the cement composition in a subterranean formation, the composition having: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) comprises a monomer or monomers selected from the group consisting of epoxysuccinic acid, a substituted epoxysuccinic acid, and an alkali metal salt, alkaline earth metal salt, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition at a temperature of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition at a temperature of 217° F. and a pressure of 3,000 psi.Type: GrantFiled: March 29, 2012Date of Patent: September 17, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Abhijit Tarafdar, Dibyadarshani Senapati, Girish Dinkar Sarap, Rahul Chandrakant Patil
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Patent number: 8485255Abstract: A well treatment composition comprises: an aqueous liquid; a fluid loss additive, wherein the fluid loss additive comprises a high molecular weight, water-swellable polymer; and an amphiphilic dispersant, wherein the well treatment composition has an activity of at least 10%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set.Type: GrantFiled: June 17, 2010Date of Patent: July 16, 2013Assignee: Halliburton Energy Services, IncInventors: Abhijit Tarafdar, Remitha Ak, Rahul Chandrakant Patil, Vikrant Wagle
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Patent number: 8459356Abstract: A well treatment composition comprises a surfactant comprising a substituted ethoxylated phenol having at least one substituent, 1 to 14 moles of ethylene oxide, and the substituent being an alkyl, alkene, or alkyne with a carbon chain length in the range of 4 to 25, wherein the substituted ethoxylated phenol is selected from the group consisting of: ortho-, para-, or meta-substituted ethoxylated phenol; cardanol ethoxylate; derivatives thereof; and combinations of any of the foregoing. Preferably, the surfactant comprises cardanol ethoxylate, a substituted cardanol ethoxylate, and derivatives thereof. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, wherein the cement composition comprises: (A) cement; (B) water; and (C) the surfactant; and allowing the cement composition to set.Type: GrantFiled: December 13, 2012Date of Patent: June 11, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Abhijit Tarafdar, Trissa Joseph, Vineet Vasant Sathe
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Publication number: 20130085207Abstract: Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, fumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing.Type: ApplicationFiled: March 29, 2012Publication date: April 4, 2013Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Girish Dinkar Sarap, Sandip Prabhakar Patil, Dibyadarshani Senapati, Abhijit Tarafdar
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Patent number: 8376045Abstract: A fluid loss additive comprises a biodegradable grafted copolymer, wherein the copolymer comprises: (i) a first polymer comprising a monomer or monomers selected from the group consisting of acrylamido-2-methylpropane sulfonic acid, N-N dimethyl acrylamide, N-vinyl-N-methylaceamide, N-vinylformamide, N-vinylpyrrolidone, acrylonitrile, acrylamide, acrylomorpholine, vinyl alcohol, maleic anhydride, acrylic acid, and any combination thereof; and (ii) a second polymer, wherein the first polymer is grafted onto the second polymer. A method of cementing in a low-temperature subterranean formation comprises: introducing a cement composition into the subterranean formation comprising: (i) cement; (ii) water; and (iii) the fluid loss additive; and allowing the cement composition to set.Type: GrantFiled: June 17, 2010Date of Patent: February 19, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Girish Dinkar Sarap, Abhijit Tarafdar, Remitha Ak
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Patent number: 8360150Abstract: A well treatment composition comprises a surfactant comprising a substituted ethoxylated phenol having at least one substituent, 1 to 14 moles of ethylene oxide, and the substituent being an alkyl, alkene, or alkyne with a carbon chain length in the range of 4 to 25, wherein the substituted ethoxylated phenol is selected from the group consisting of: ortho-, para-, or meta-substituted ethoxylated phenol; cardanol ethoxylate; derivatives thereof; and combinations of any of the foregoing. Preferably, the surfactant comprises cardanol ethoxylate, a substituted cardanol ethoxylate, and derivatives thereof. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, wherein the cement composition comprises: (A) cement; (B) water; and (C) the surfactant; and allowing the cement composition to set.Type: GrantFiled: July 27, 2010Date of Patent: January 29, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Abhijit Tarafdar, Trissa Joseph, Vineet Vasant Sathe
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Patent number: 8327938Abstract: Compositions and methods according to the invention are directed to a cement composition for use in a subterranean formation. The cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) comprises a monomer or monomers selected from the group consisting of epoxysuccinic acid, a substituted epoxysuccinic acid, and an alkali metal salt, alkaline earth metal salt, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition at a temperature of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition at a temperature of 217° F. and a pressure of 3,000 psi, wherein the test composition consists of 860 grams of Class-H Portland cement, 325 grams of deionized water, and 0.Type: GrantFiled: February 24, 2010Date of Patent: December 11, 2012Assignee: Halliburton Energy Services Incs.Inventors: Abhijit Tarafdar, Dibyadarshani Senapati, Girish Dinkar Sarap, Rahul Chandrakant Patil
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Publication number: 20120283152Abstract: A well treatment composition comprises: an aqueous liquid; a fluid loss additive, wherein the fluid loss additive comprises a high molecular weight, water-swellable polymer; and an amphiphilic dispersant, wherein the well treatment composition has an activity of at least 10%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set.Type: ApplicationFiled: July 19, 2012Publication date: November 8, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Abhijit TARAFDAR, Remitha AK, Rahul Chandrakant PATIL, Vikrant WAGLE
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Publication number: 20120210911Abstract: A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid: (A) comprises the continuous phase of the well treatment composition; and (B) comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive: (A) is insoluble in the organic liquid; and (B) comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.Type: ApplicationFiled: April 27, 2012Publication date: August 23, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Abhijit TARAFDAR, Remitha AK
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Patent number: 8245784Abstract: A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid comprises the continuous phase of the well treatment composition, and wherein the organic liquid comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive is insoluble in the organic liquid, and wherein the fluid loss additive comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.Type: GrantFiled: June 7, 2010Date of Patent: August 21, 2012Assignee: Halliburton Energy Services, Inc.Inventors: Abhijit Tarafdar, Remitha Ak
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Publication number: 20120196954Abstract: A cement composition or method of using the cement composition in a subterranean formation, the composition having: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) comprises a monomer or monomers selected from the group consisting of epoxysuccinic acid, a substituted epoxysuccinic acid, and an alkali metal salt, alkaline earth metal salt, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition at a temperature of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition at a temperature of 217° F. and a pressure of 3,000 psi.Type: ApplicationFiled: March 29, 2012Publication date: August 2, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Abhijit Tarafdar, Dibyadarshani Senapati, Girish Dinkar Sarap, Rahul Chandrakant Patil
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Publication number: 20120157578Abstract: Methods and compositions are provided that relate to cement compositions comprising sub-micron calcium carbonate and latex. An embodiment includes a cement composition comprising: cement, water, sub-micron calcium carbonate having a particle size in a range of from greater than 100 nanometers to about 1 micron, and latex.Type: ApplicationFiled: February 28, 2012Publication date: June 21, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Rahul Chandrakant Patil, Abhijit Tarafdar, Abhimanyu Deshpande, Christopher L. Gordon