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: 20210309907Abstract: A method of treating a well that includes introducing a well treatment fluid into the well, and a well treatment fluid, are provided. The well treatment fluid comprises an aqueous base fluid, a bridging agent, a viscosifying agent, and a water soluble, biodegradable graft copolymer. In one embodiment, for example, the method is a method of cementing a casing in a well. In this embodiment, the well treatment fluid is a cement spacer fluid.Type: ApplicationFiled: April 6, 2020Publication date: October 7, 2021Inventors: Sandip Prabhakar Patil, Ganesh Shriniwas Pangu, Tamal Kumar Sen, Samuel Lewis
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Patent number: 11136489Abstract: A cement composition for use in a well that penetrates a subterranean formation comprising: hydrated lime; a silicate; and water, wherein the composition is substantially free of a hydraulic cement. A method of treating a subterranean formation comprising: introducing the cement composition into the subterranean formation; and allowing the cement composition to set.Type: GrantFiled: September 16, 2019Date of Patent: October 5, 2021Assignee: Halliburton Energy Services, Inc.Inventors: Krishna Ravi, Sandip Prabhakar Patil, Sheetal Singh, Rahul Chandrakant Patil
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Patent number: 11130707Abstract: A treatment fluid may comprise: a water having hardness at about 300 ppm or greater, a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW); and an alkali metal base at about 0.01% to about 5% BWOW, wherein the chelating agent and alkali metal base reduce the negative effect of the water on hydrating swellable clays.Type: GrantFiled: May 21, 2020Date of Patent: September 28, 2021Assignee: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Waseem Abdulrazzaq, Sheetal Singh, Vaishali Mishra, Reem Mohammed Alburaikan
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Publication number: 20210253929Abstract: Methods of treating a subterranean formation including providing a spacer fluid including acrylamide/2-acrylamido-2-methylpropane sulfonic acid grafted copolymer (acrylamide copolymer), polyethylene glycol alkyl ether sulfate (PEGAES), and ethoxylated nonylphenol (ENP), and introducing the spacer fluid into a wellbore of the subterranean formation to displace at least a portion of a first fluid from the wellbore. The spacer fluid maintains its yield point for at least half an hour when subjected to a temperature of greater than 300° F.Type: ApplicationFiled: October 12, 2018Publication date: August 19, 2021Inventors: Sandip Prabhakar PATIL, Ganesh Shriniwas PANGU, Maithili Ashok DUMBRE, Faisal SAEED
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Patent number: 10988676Abstract: A method of servicing a wellbore penetrating a subterranean formation, comprising: placing a wellbore servicing fluid (WSF) into the wellbore, wherein the WSF comprises a first polymer, a second polymer, and water, wherein the first polymer is formed by polymerizing monomers comprising three of 2-Acrylamido-2-methyl propane sulfonic acid (AMPS), N,N-dimethylacrylamide (NNDMA), acrylamide, N-vinylacetamide, allyloxy-2-hydroxy propane sulfonic acid (AHPS), acrylic acid (AA), 2-acrylamido-2-tert.-butyl sulfonic acid (ATBS), or N,N-Dimethylaniline, and the second polymer is formed by polymerizing monomers and/or crosslinkers comprising AMPS, vinylpyrrolidinone, pentaerythritol allyl ether, and methylenebisacrylamide, wherein in the vinylpyrrolidinone, the 2-Pyrrolidone group can be substituted by a heterocyclic group, comprising one or more Z membered rings with Y heteroatoms, wherein Z is equal to or greater than three, and wherein Y is equal to or greater than one.Type: GrantFiled: November 29, 2019Date of Patent: April 27, 2021Assignee: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Ganesh Shriniwas Pangu, Tamal Kumar Sen, Samuel J. Lewis
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Publication number: 20210087459Abstract: The present disclosure provides methods, compositions, and systems embodying cement compositions and the synergistic effect of lost circulation materials (LCMs) and fluid loss control additives (FLCAs) thereupon for cementing subterranean zones. A method of subterranean well cementing, comprising providing a cement composition comprising a hydraulic cement, a first FLCA, an LCM, and water, wherein the first FLCA comprises a water-soluble polymer with repeating units comprising a 5- to 6-membered cyclic amide; introducing the cement composition into a wellbore penetrating a subterranean formation, wherein inclusion of the first FLCA and the LCM in the cement composition fluid reduces fluid loss into the subterranean formation, wherein the subterranean formation has fractures with a width of from about 1 micron to about 800 microns, and wherein the subterranean formation has a permeability of about 1 milliDarcy to about 300 Darcy; and allowing the cement composition to set in the subterranean formation.Type: ApplicationFiled: September 25, 2019Publication date: March 25, 2021Applicant: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Samuel Jason Lewis, Kyriacos Agapiou, Ganesh Shriniwas Pangu
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Publication number: 20200308477Abstract: A method of treating a well comprising introducing a well treatment fluid into the well, and a well treatment fluid, are provided. The well treatment fluid comprises an aqueous base fluid, sepiolite clay, and a polymer component selected from the group of an acryloylmorpholine polymer, a polyvinylpyrrolidone polymer, and mixtures thereof. In one embodiment, for example, the method is a method of drilling a well. In this embodiment, the well treatment fluid is a drilling fluid.Type: ApplicationFiled: December 20, 2017Publication date: October 1, 2020Inventors: Sandip Prabhakar PATIL, Ganesh Pangu, Tamal SEN, Maithili DUMBRE, Sam Lewis
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Publication number: 20200283336Abstract: A treatment fluid may comprise: a water having hardness at about 300 ppm or greater, a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW); and an alkali metal base at about 0.01% to about 5% BWOW, wherein the chelating agent and alkali metal base reduce the negative effect of the water on hydrating swellable clays.Type: ApplicationFiled: May 21, 2020Publication date: September 10, 2020Applicant: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Waseem Abdulrazzaq, Sheetal Singh, Vaishali Mishra, Reem Mohammed Alburaikan
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Patent number: 10703676Abstract: A method may comprise: mixing a water having hardness at about 300 ppm or greater with a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW), and an alkali metal base at about 0.01% to about 5% BWOW to produce a treatment fluid; and introducing the treatment fluid into a wellbore penetrating a subterranean formation.Type: GrantFiled: October 13, 2016Date of Patent: July 7, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Waseem Abdulrazzaq, Sheetal Singh, Vaishali Mishra, Reem Mohammed Alburaikan
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Patent number: 10563477Abstract: Methods and systems for cementing casing in a wellbore are described. The methods include introducing a modified biopolymer into an inner diameter of the casing, reverse-circulating a cement composition in the wellbore, permitting the modified biopolymer to contact the cement composition, and terminating the reverse-circulation upon detection of an increase in pressure in pumping the cement composition. The modified biopolymer includes a reaction product of a biopolymer and an organic carbonate, and the cement composition has a pH greater than 11.Type: GrantFiled: December 23, 2015Date of Patent: February 18, 2020Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventors: Sandip Prabhakar Patil, Siva Rama Krishna Jandhyala, Shreya Mohan, Rahul Chandrakant Patil
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Publication number: 20200010753Abstract: A cement composition for use in a well that penetrates a subterranean formation comprising: hydrated lime; a silicate; and water, wherein the composition is substantially free of a hydraulic cement. A method of treating a subterranean formation comprising: introducing the cement composition into the subterranean formation; and allowing the cement composition to set.Type: ApplicationFiled: September 16, 2019Publication date: January 9, 2020Applicant: Halliburton Energy Services, Inc.Inventors: Krishna Ravi, Sandip Prabhakar Patil, Sheetal Singh, Rahul Chandrakant Patil
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Patent number: 10487612Abstract: Swellable packer assemblies for providing a physical barrier inside a wellbore are provided. In one embodiment, the swellable packer comprises at least one seal element disposed on an outer surface of a tubular body portion which swells when contacted with one or more gases, the seal element comprising a polymer derived from a perfluoro vinyl monomer.Type: GrantFiled: August 4, 2014Date of Patent: November 26, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Ramesh Muthusamy, Anupom Sabhapondit, Sandip Prabhakar Patil, Rahul Chandrakant Patil
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Patent number: 10479923Abstract: A method of cementing a subterranean formation includes providing a cement composition comprising cementitious material, aqueous base fluid, nanoparticles, synthetic clay, and a thixotropic modifier, where the solid materials are about 0 wt % to about 40 wt % of the total weight of the cement composition; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation. Cement compositions include cementitious material, aqueous base fluid, nanoparticles, synthetic clay, and a thixotropic modifier.Type: GrantFiled: November 25, 2013Date of Patent: November 19, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Rahul Chandrakant Patil, Krishna M. Ravi, Sheetal Singh, Trissa Joseph, Marcus Duffy
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Patent number: 10465104Abstract: A cement composition for use in a well that penetrates a subterranean formation comprising: hydrated lime; a silicate; and water, wherein the composition is substantially free of a hydraulic cement. A method of treating a subterranean formation comprising: introducing the cement composition into the subterranean formation; and allowing the cement composition to set.Type: GrantFiled: December 2, 2014Date of Patent: November 5, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Krishna Ravi, Sandip Prabhakar Patil, Sheetal Singh, Rahul Chandrakant Patil
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Patent number: 10442975Abstract: 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: March 3, 2015Date of Patent: October 15, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Ashok K. Santra, Balasundaram Balaraman
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Publication number: 20190225542Abstract: A method may comprise: mixing a water having hardness at about 300 ppm or greater with a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW), and an alkali metal base at about 0.01% to about 5% BWOW to produce a treatment fluid; and introducing the treatment fluid into a wellbore penetrating a subterranean formation.Type: ApplicationFiled: October 13, 2016Publication date: July 25, 2019Applicant: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Waseem Abdulrazzaq, Sheetal Singh, Vaishali Mishra, Reem Mohammed Alburaikan
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Patent number: 10344544Abstract: A method of treating lost circulation issues stemming from loss zones during the drilling and cementing process through the utilization of a thixotropic cement. The method comprises the steps of encountering a loss zone in a bore hole during drilling or running casing and pumping a treatment fluid into the loss zone, wherein the treatment fluid is a gel capable of gelling, breaking when sheared, and building back shear strength after shearing is removed.Type: GrantFiled: April 7, 2015Date of Patent: July 9, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Krishna M. Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Siva Rama Krishna Jandhyala, Ravinder Gahlawat
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Patent number: 10233378Abstract: 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: GrantFiled: May 10, 2018Date of Patent: March 19, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Krishna M. Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Abhimanyu Deshpande
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Publication number: 20180274327Abstract: Methods and systems for cementing casing in a wellbore are described. The methods include introducing a modified biopolymer into an inner diameter of the casing, reverse-circulating a cement composition in the wellbore, permitting the modified biopolymer to contact the cement composition, and terminating the reverse-circulation upon detection of an increase in pressure in pumping the cement composition. The modified biopolymer includes a reaction product of a biopolymer and an organic carbonate, and the cement composition has a pH greater than 11.Type: ApplicationFiled: December 23, 2015Publication date: September 27, 2018Applicant: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar PATIL, Siva Rama Krishna JANDHYALA, Shreya MOHAN, Rahul Chandrakant PATIL
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Publication number: 20180258338Abstract: 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: May 10, 2018Publication date: September 13, 2018Inventors: Krishna M. Ravi, Rahul Chandrakant Patil, Sandip Prabhakar Patil, Sohini Bose, Abhimanyu Deshpande