Patents by Inventor Sandip Prabhakar Patil
Sandip Prabhakar Patil 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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Publication number: 20150184057Abstract: A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.Type: ApplicationFiled: March 10, 2015Publication date: July 2, 2015Inventors: Ramesh Muthusamy, Abhimanyu Pramod Deshpande, Rahul Chandrakant Patil, Sandip Prabhakar Patil
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Publication number: 20150175870Abstract: In an embodiment, the cement compositions comprise: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 in the range of 2.0 to 4.0; and (ii) a water-soluble metaphosphate in a concentration of at least 2.5% bwoc. In another embodiment, the cement compositions comprise: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 of less than 2.0; and (ii) a water-soluble metaphosphate; wherein any alkali nitrate is in a concentration of less than 2% bwoc; and wherein any alkali hydroxide, alkali carbonate, or alkali citrate is in a concentration of less than 0.2% bwoc. Methods of cementing in a well comprising forming either of such cement compositions and introducing it into the well are provided.Type: ApplicationFiled: March 3, 2015Publication date: June 25, 2015Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Ashok K. Santra, Balasundaram Balaraman
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Patent number: 9038722Abstract: In an embodiment, the cement compositions comprise: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 in the range of 2.0 to 4.0; and (ii) a water-soluble metaphosphate in a concentration of at least 2.5% bwoc. In another embodiment, the cement compositions comprise: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 of less than 2.0; and (ii) a water-soluble metaphosphate; wherein any alkali nitrate is in a concentration of less than 2% bwoc; and wherein any alkali hydroxide, alkali carbonate, or alkali citrate is in a concentration of less than 0.2% bwoc. Methods of cementing in a well comprising forming either of such cement compositions and introducing it into the well are provided.Type: GrantFiled: June 4, 2013Date of Patent: May 26, 2015Assignee: Halliburton Energy Services, Inc.Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Ashok K. Santra, Balasundaram Balaraman
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Patent number: 9012379Abstract: A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.Type: GrantFiled: March 5, 2013Date of Patent: April 21, 2015Assignee: Halliburton Energy Services, Inc.Inventors: Ramesh Muthusamy, Abhimanyu Pramod Deshpande, Rahul Chandrakant Patil, Sandip Prabhakar Patil
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Publication number: 20150080272Abstract: A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.Type: ApplicationFiled: July 21, 2014Publication date: March 19, 2015Inventors: Ramesh Muthusamy, Abhimanyu Pramod Deshpande, Rahul Chamdrakant Patil, Sandip Prabhakar Patil
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Publication number: 20140326455Abstract: Methods and compositions for treating a subterranean formation with salt-tolerant cement slurries including treating a salt-containing subterranean formation having sodium salts, potassium salts, magnesium salts, calcium salts, or any combination thereof comprising: providing a salt-tolerant cement slurry comprising: a base fluid, a cementitious material, a pozzolanic material, a salt-tolerant fluid loss additive, a salt additive, and optionally, an elastomer, a weight additive, a fluid loss intensifier, a strengthening agent, a dispersant, or any combination thereof; introducing the salt-tolerant cement slurry into the subterranean formation; and allowing the salt-tolerant cement slurry to set.Type: ApplicationFiled: September 20, 2013Publication date: November 6, 2014Applicant: Halliburton Energy Services, Inc.Inventors: Krishna M. Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Abhimanyu Deshpande
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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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Publication number: 20140256603Abstract: A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.Type: ApplicationFiled: March 5, 2013Publication date: September 11, 2014Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Ramesh Muthusamy, Abhimanyu Pramod Deshpande, Rahul Chandrakant Patil, Sandip Prabhakar Patil
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Patent number: 8741818Abstract: An embodiment includes a method of servicing a well bore. The method may comprise introducing a lost circulation composition into a lost circulation zone, the lost circulation composition comprising hydraulic cement, nano-particles, amorphous silica, clay, and water. The method further may comprise allowing the lost circulation composition to set in the lost circulation zone. Another embodiment includes a lost circulation composition. The lost circulation may comprise hydraulic cement, nano-particles, amorphous silica, clay, and water.Type: GrantFiled: April 11, 2012Date of Patent: June 3, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Krishna Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sairam K S Pindiprolu, Craig W. Roddy, Ricky Covington, Jiten Chatterji, D. Chad Brenneis
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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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Publication number: 20140102704Abstract: In an embodiment, a cement composition includes: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 in the range of 2.0 to 4.0; and (ii) a water-soluble metaphosphate in a concentration of at least 2.5% bwoc. In another embodiment, a cement composition includes: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 of less than 2.0; and (ii) a water-soluble metaphosphate; wherein any alkali nitrate is in a concentration of less than 2% bwoc; and wherein any alkali hydroxide, alkali carbonate, or alkali citrate is in a concentration of less than 0.2% bwoc. Methods of cementing in a well include forming either of such cement compositions and introducing it into the well.Type: ApplicationFiled: June 4, 2013Publication date: April 17, 2014Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Ashok K. Santra, Balasundaram Balaraman
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Patent number: 8685903Abstract: An embodiment includes a method of servicing a well bore. The method may comprise introducing a lost circulation composition into a lost circulation zone, the lost circulation composition comprising hydraulic cement, nano-particles, amorphous silica, clay, and water. The method further may comprise allowing the lost circulation composition to set in the lost circulation zone. Another embodiment includes a lost circulation composition. The lost circulation may comprise hydraulic cement, nano-particles, amorphous silica, clay, and water.Type: GrantFiled: March 21, 2011Date of Patent: April 1, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Krishna Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sairam KS Pindiprolu, Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Ricky Covington
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Patent number: 8623135Abstract: A method of cementing in a subterranean formation comprising the steps of: (A) introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and any combination thereof, wherein the cement composition has a density of at least 16 pounds per gallon; and (B) allowing the cement composition to set. According to an embodiment, the high-density additive is in a concentration of at least 30% by weight of the cement. A cement composition for use in an oil or gas well comprises: (A) cement; (B) water; and (C) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and a combination thereof, wherein the high-density additive is in a concentration of at least 30% by weight of the cement, and wherein the cement composition has a density of at least 16 pounds per gallon.Type: GrantFiled: February 7, 2013Date of Patent: January 7, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Keith Armstrong
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Publication number: 20130284439Abstract: According to an embodiment, a composition is provided that can be used in a cementing. The composition includes at least: (i) a hydraulic cement; and (ii) a copolymer comprising at least the monomeric units (a) through (d) of the following formula: wherein the monomeric units (a) through (d) can be any sequence and any proportion in the copolymer. With water, the composition of the hydraulic cement and such a copolymer becomes a cement composition. According to the method, the cement composition is introduced into a well and allowed to set in the well.Type: ApplicationFiled: April 27, 2012Publication date: October 31, 2013Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Tushar Sureshgir Gosavi, Ramesh Muthusamy, Rahul Chandrakant Patil, Sandip Prabhakar Patil
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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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Publication number: 20120325478Abstract: The present invention relates to cement compositions and their use in cementing operations. The cements comprise an aluminosilicate; a sodium aluminate, a calcium aluminate, a potassium aluminate, or a combination thereof; and water. In some cases the cement does not include Portland cement. The cement may be used in a subterranean formation having corrosive components therein, wherein the set cement sheath is resistant to degradation from the corrosive components within the subterranean formation.Type: ApplicationFiled: September 7, 2012Publication date: December 27, 2012Applicant: Halliburton Energy Services, Inc.Inventors: Ramesh Muthusamy, Tushar Sureshgiri Gosavi, Rahul Chandrakant Patil, Ashok K. Santra, Sandip Prabhakar Patil, Kameswara Sri Sairam Pindiprolu
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Publication number: 20120192768Abstract: An embodiment includes a method of servicing a well bore. The method may comprise introducing a lost circulation composition into a lost circulation zone, the lost circulation composition comprising hydraulic cement, nano-particles, amorphous silica, clay, and water. The method further may comprise allowing the lost circulation composition to set in the lost circulation zone. Another embodiment includes a lost circulation composition. The lost circulation may comprise hydraulic cement, nano-particles, amorphous silica, clay, and water.Type: ApplicationFiled: April 11, 2012Publication date: August 2, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Krishna Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sairam KS Pindiprolu, Craig Roddy, Ricky Convington, Jiten Chatterji, D. Chad Brenneis
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Publication number: 20120018155Abstract: A method of cementing in a subterranean formation comprising the steps of: (A) introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and any combination thereof, wherein the cement composition has a density of at least 16 pounds per gallon; and (B) allowing the cement composition to set. According to an embodiment, the high-density additive is in a concentration of at least 30% by weight of the cement. A cement composition for use in an oil or gas well comprises: (A) cement; (B) water; and (C) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and a combination thereof, wherein the high-density additive is in a concentration of at least 30% by weight of the cement, and wherein the cement composition has a density of at least 16 pounds per gallon.Type: ApplicationFiled: July 21, 2010Publication date: January 26, 2012Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Keith Armstrong
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Publication number: 20110162845Abstract: An embodiment includes a method of servicing a well bore. The method may comprise introducing a lost circulation composition into a lost circulation zone, the lost circulation composition comprising hydraulic cement, nano-particles, amorphous silica, clay, and water. The method further may comprise allowing the lost circulation composition to set in the lost circulation zone. Another embodiment includes a lost circulation composition. The lost circulation may comprise hydraulic cement, nano-particles, amorphous silica, clay, and water.Type: ApplicationFiled: March 21, 2011Publication date: July 7, 2011Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Krishna Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sairam KS Pindiprolu, Craig Roddy, Ricky Convington, Jiten Chatterji, D. Chad Brenneis
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Publication number: 20110132605Abstract: 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: ApplicationFiled: December 8, 2009Publication date: June 9, 2011Applicant: Halliburton Energy Services, Inc.Inventors: Girish Dinkar Sarap, Sandip Prabhakar Patil, Dibyadarshani Senapati, Abhijit Tarafdar