Patents by Inventor Sachin Agashe
Sachin Agashe 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: 10472559Abstract: A method comprises obtaining or providing a treatment fluid comprising a gellable agent; an aqueous carrier fluid; at least one polymer comprising one or more ortho-dioxy arylene units; a crosslinking agent; and placing the treatment fluid in a subterranean formation. In some embodiments, the aqueous carrier fluid comprises produced and/or flowback water. In some embodiments, the aqueous carrier fluid comprises high total dissolved solids, including multivalent salts or both monovalent and multivalent salts.Type: GrantFiled: September 19, 2013Date of Patent: November 12, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Neelam Deepak Raysoni, Snehalata Sachin Agashe
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Patent number: 10259995Abstract: A treatment fluid that includes an aqueous fluid, an inorganic acid, and a hydrophobically modified quaternized polysaccharide may be useful in mitigating corrosion of metal surfaces by the inorganic acid. For example, a wellbore operation may include introducing the treatment fluid into a wellbore penetrating a subterranean formation and contacting a metal surface with a treatment fluid.Type: GrantFiled: February 6, 2015Date of Patent: April 16, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Snehalata Sachin Agashe, Sushant Dattaram Wadekar, Ranjeet Gangadhar Kshirsagar
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Patent number: 10100244Abstract: A method of swelling an oil-swellable elastomer in a well comprising the step of: contacting the oil-swellable elastomer in the well with a treatment fluid, wherein the treatment fluid comprises: (A) an oil selected from the group consisting of alkanes and naphtha, wherein the oil comprises hydrocarbons having anywhere in the range of 5 to 21 carbons; (B) an ?-olefin having anywhere in the range of 18 to 26 carbons; and (C) an activator for oil-swelling, the activator selected from the group consisting of: ketones, dodecane, terpenes, terpenoids, haloalkanes having from 9 to 20 carbons, and any combination thereof. An oil-swelled elastomer as produced by the method is also contemplated.Type: GrantFiled: March 29, 2013Date of Patent: October 16, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Prajakta Ratnakar Patil, Snehalata Sachin Agashe, Anjali Ramesh Sarda, Prasanta Das
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Patent number: 9976073Abstract: Methods and systems for generating heat and/or nitrogen gas in subterranean operations, pipelines, and other related operations are provided. In one embodiment, the methods comprise: providing a treatment composition comprising a carrier fluid, a delayed acid generating component, a first reactant, and a second reactant, wherein the first and second reactants are selected for being capable of reacting in an exothermic chemical reaction or a chemical reaction that produces nitrogen gas; and introducing the treatment composition into at least a portion of a conduit, container, or subterranean formation.Type: GrantFiled: June 2, 2014Date of Patent: May 22, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Rajender Salla, Mario Cyril Pinto, Snehalata Sachin Agashe, Neelam Deepak Raysoni, Mdmonsur Alam
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Patent number: 9850366Abstract: Epoxidized fatty acid alkyl ester and methods for making epoxidized fatty acid alkyl ester. The epoxidized fatty acid alkyl ester is prepared from a fatty acid alkyl ester starting material comprising at least one of mono-unsaturated and di-unsaturated fatty acid alkyl ester molecules in a combined amount of at least 85 weight percent. Such epoxidized fatty acid alkyl esters can be employed in plasticizer compositions, either alone or in combination with other plasticizers, such as epoxidized natural oils. Such plasticizers in turn may be used in the formation of polymeric compositions.Type: GrantFiled: October 18, 2012Date of Patent: December 26, 2017Assignee: Dow Global Technologies LLCInventors: Neeta Rao, Saurabh Kaujalgikar, Bharat I. Chaudhary, Shreyas Bhide, Shantaram Morye, Sachin Agashe
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Patent number: 9845426Abstract: A fluid including: (i) a continuous aqueous phase, wherein the continuous aqueous phase has total dissolved solids in a concentration of at least 30,000 mg/l; (ii) an alkyl amido quaternary amine; (iii) a polymer, wherein the polymer is water-soluble or water-hydratable; and (iv) a crosslinker for the polymer. The continuous aqueous phase of the fluid can include a water source selected from the group consisting of flowback water, produced water, and any combination thereof. Methods include: (A) forming a fluid according to any of the various embodiments of the disclosure, and (B) introducing the fluid into a well. For example, the fluid can be used as a fracturing fluid for fracturing a treatment zone of a well.Type: GrantFiled: September 20, 2013Date of Patent: December 19, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Snehalata Sachin Agashe, Prajakta Ratnakar Patil, Sushant Dattaram Wadekar
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Patent number: 9840661Abstract: Methods of stabilizing swellable clays in a subterranean formation and methods of reducing the formation of sludge in a subterranean formation using a biopolymer based cationic surfactant are described. The biopolymer based cationic surfactant includes a quaternary ammonium compound having an alkyl polyglucoside backbone and amino alcohol side chains.Type: GrantFiled: August 14, 2015Date of Patent: December 12, 2017Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventors: Snehalata Sachin Agashe, Ravikant S. Belakshe
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Publication number: 20170349820Abstract: A treatment fluid that includes an aqueous fluid, an inorganic acid, and a hydrophobically modified quaternized polysaccharide may be useful in mitigating corrosion of metal surfaces by the inorganic acid. For example, a wellbore operation may include introducing the treatment fluid into a wellbore penetrating a subterranean formation and contacting a metal surface with a treatment fluid.Type: ApplicationFiled: February 6, 2015Publication date: December 7, 2017Inventors: Snehalata Sachin AGASHE, Sushant Dattaram WADEKAR, Ranjeet Gangadhar KSHIRSAGAR
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Publication number: 20170233643Abstract: Methods of stabilizing swellable clays in a subterranean formation and methods of reducing the formation of sludge in a subterranean formation using a biopolymer based cationic surfactant are described. The biopolymer based cationic surfactant in dudes a quaternary ammonium compound having an alkyl polyglucoside backbone and amino alcohol side chains.Type: ApplicationFiled: August 14, 2015Publication date: August 17, 2017Inventors: Snehalata Sachin Agashe, Ravikant S. Belakshe
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Publication number: 20170073571Abstract: Methods and systems for generating heat and/or nitrogen gas in subterranean operations, pipelines, and other related operations are provided. In one embodiment, the methods comprise: providing a treatment composition comprising a carrier fluid, a delayed acid generating component, a first reactant, and a second reactant, wherein the first and second reactants are selected for being capable of reacting in an exothermic chemical reaction or a chemical reaction that produces nitrogen gas; and introducing the treatment composition into at least a portion of a conduit, container, or subterranean formation.Type: ApplicationFiled: June 2, 2014Publication date: March 16, 2017Inventors: Rajender Salla, Mario Cyril Pinto, Snehalata Sachin Agashe, Neelam Deepak Raysoni, Mdmonsur Alam
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Patent number: 9567511Abstract: Methods including introducing a treatment fluid comprising a solvent-base fluid and a consolidation composition into a wellbore in a subterranean formation, the consolidation comprising, a crosslinking diverting agent, a hardening agent, and a multi-functional epoxy resin, the multi-functional epoxy resin comprising at least three epoxy groups; coating a face of the subterranean formation with the consolidation composition; and at least partially curing the consolidation composition in the wellbore, to reduce production of unconsolidated particulates from the subterranean formation into the wellbore.Type: GrantFiled: November 19, 2014Date of Patent: February 14, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Sushant Dattaram Wadekar, Snehalata Sachin Agashe, Ranjeet Gangadhar Kshirsagar
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Publication number: 20160362599Abstract: Methods including introducing a treatment fluid comprising a solvent-base fluid and a consolidation composition into a wellbore in a subterranean formation, the consolidation comprising, a crosslinking diverting agent, a hardening agent, and a multi-functional epoxy resin, the multi-functional epoxy resin comprising at least three epoxy groups; coating a face of the subterranean formation with the consolidation composition; and at least partially curing the consolidation composition in the wellbore, to reduce production of unconsolidated particulates from the subterranean formation into the wellbore.Type: ApplicationFiled: November 19, 2014Publication date: December 15, 2016Applicant: Haliburton Energy Services, Inc.Inventors: Sushant Dattaram Wadekar, Snehalata Sachin Agashe, Ranjeet Gangadhar Kshirsagar
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Publication number: 20160194552Abstract: A fluid including: (i) a continuous aqueous phase, wherein the continuous aqueous phase has total dissolved solids in a concentration of at least 30,000 mg/l; (ii) an alkyl amido quaternary amine; (iii) a polymer, wherein the polymer is water-soluble or water-hydratable; and (iv) a crosslinker for the polymer. The continuous aqueous phase of the fluid can include a water source selected from the group consisting of flowback water, produced water, and any combination thereof. Methods include: (A) forming a fluid according to any of the various embodiments of the disclosure, and (B) introducing the fluid into a well. For example, the fluid can be used as a fracturing fluid for fracturing a treatment zone of a well.Type: ApplicationFiled: September 20, 2013Publication date: July 7, 2016Inventors: Snehalata Sachin Agashe, Prajakta Ratnakar Patil, Sushant Dattaram Wadekar
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Publication number: 20160060507Abstract: A method comprises obtaining or providing a treatment fluid comprising a gellable agent; an aqueous carrier fluid; at least one polymer comprising one or more ortho-dioxy arylene units; a crosslinking agent; and placing the treatment fluid in a subterranean formation. In some embodiments, the aqueous carrier fluid comprises produced and/or flowback water. In some embodiments, the aqueous carrier fluid comprises high total dissolved solids, including multivalent salts or both monovalent and multivalent salts.Type: ApplicationFiled: September 19, 2013Publication date: March 3, 2016Inventors: Neelam Deepak Raysoni, Snehalata Sachin Agashe
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Publication number: 20160040058Abstract: A method of swelling an oil-swellable elastomer in a well comprising the step of: contacting the oil-swellable elastomer in the well with a treatment fluid, wherein the treatment fluid comprises: (A) an oil selected from the group consisting of alkanes and naphtha, wherein the oil comprises hydrocarbons having anywhere in the range of 5 to 21 carbons; (B) an ?-olefin having anywhere in the range of 18 to 26 carbons; and (C) an activator for oil-swelling, the activator selected from the group consisting of: ketones, dodecane, terpenes, terpenoids, haloalkanes having from 9 to 20 carbons, and any combination thereof. An oil-swelled elastomer as produced by the method is also contemplated.Type: ApplicationFiled: March 29, 2013Publication date: February 11, 2016Inventors: Prajakta Ratnakar Patil, Snehalata Sachin AGASHE, Anjali Ramesh SARDA, Prasanta DAS
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Publication number: 20150240050Abstract: Epoxidized fatty acid alkyl ester and methods for making epoxidized fatty acid alkyl ester. The epoxidized fatty acid alkyl ester is prepared from a fatty acid alkyl ester starting material comprising at least one of mono-unsaturated and di-unsaturated fatty acid alkyl ester molecules in a combined amount of at least 85 weight percent. Such epoxidized fatty acid alkyl esters can be employed in plasticizer compositions, either alone or in combination with other plasticizers, such as epoxidized natural oils. Such plasticizers in turn may be used in the formation of polymeric compositions.Type: ApplicationFiled: October 18, 2012Publication date: August 27, 2015Inventors: Neeta Rao, Saurabh Kaujalgikar, Bharat I. Chaudhary, Shreyas Bhide, Shantaram Morye, Sachin Agashe
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Publication number: 20140318785Abstract: A method of servicing a wellbore in a subterranean formation comprising placing a liquid additive composition comprising (i) a liquid non-aqueous continuous phase; (ii) a discontinuous phase comprising a water-soluble polymeric additive; (iii) emulsion-stabilizing and water-wetting surfactants and (iv) a discontinuous phase release control agent. A method of servicing a wellbore comprising placing a wellbore servicing fluid comprising (i) a cementitious material and (ii) a liquid additive composition comprising a fluid loss additive and a discontinuous phase release control agent into the wellbore and/or subterranean formation; and allowing the cement to set.Type: ApplicationFiled: April 30, 2013Publication date: October 30, 2014Applicant: Halliburton Energy Services, Inc.Inventors: B. Raghava REDDY, Peter James BOUL, Snehalata Sachin AGASHE, Brittney Nichole GUILLORY, Damilola Deborah OLATERU