Injecting A Composition Including A Surfactant Or Cosurfactant Patents (Class 166/270.1)
  • Patent number: 10703961
    Abstract: Water-in-oil lattices of water soluble or dispersible polymers and methods of using the same are presented. The lattices include phosphorus functional inversion agents that provide rapid and complete inversion of the lattices under conditions wherein the water source used to invert the latex is provided at high temperature, or includes a high level of total dissolved solids, or is both high temperature and high total dissolved solids.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 7, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Anand Parthasarathy
  • Patent number: 10633574
    Abstract: Provided here are compositions and improved methods for recovering portion of irreducible water saturation in a porous rock sample. Compositions used here contain a displacement fluid and a surfactant, and lead to an increased recovery of the irreducible water from the porous rock sample.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 28, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Shouxiang Mark Ma, Nedhal Musharfi
  • Patent number: 10590329
    Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include sodium sulfate (Na2SO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: March 17, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Subhash Chandrabose Ayirala, Ali Abdallah Al-Yousef, Abdulkareem M. Al-Sofi
  • Patent number: 10590330
    Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include sodium sulfate (Na2SO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: March 17, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Subhash Chandrabose Ayirala, Ali Abdallah Al-Yousef, Abdulkareem M. Al-Sofi
  • Patent number: 10563116
    Abstract: The invention relates to the use of at least one compound corresponding to the formula below: R—O—(—CH2—CH(—CH3)—O—)m—(—CH2—CH2—O—)n—H in which: R is a hydrocarbon-based group comprising from 6 to 40 carbon atoms; m is a number ranging from 0 to 20; n is a number greater than 20; for inhibiting the anionic-surfactant retention phenomena in an oil reservoir, especially in a carbonate-based or argillaceous reservoir.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: February 18, 2020
    Assignees: IFP ENERGIES NOUVELLES, RHODIA OPERATIONS
    Inventors: Mikel Morvan, Patrick Moreau, Rene Tabary, Brigitte Bazin
  • Patent number: 10544355
    Abstract: Methods and compositions for stimulating of the production of hydrocarbons (e.g., formation crude oil and/or formation gas) from subterranean formations, and methods of selecting a composition for treating an oil or gas well. In some embodiments, the compositions are emulsions or microemulsions, which may include water, a terpene, and a surfactant.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: January 28, 2020
    Assignee: Flotek Chemistry, LLC
    Inventors: Randal M. Hill, Lakia M. Champagne, Nathan L. Lett, Maria Elizabeth Green, Hasnain Saboowala
  • Patent number: 10508227
    Abstract: A sparingly soluble sulfonate-metal salt particle includes the metal ion salt of an alkyl aryl sulfonate, the metal ion salt of a petroleum sulfonate and a hydrophobically modified hydrophilic polymer, and has an average particle size diameter in a range of from about 50 nm to about 450 nm and is sparingly soluble in water at room temperature. A method of producing a sparingly soluble sulfonate-metal salt particle includes the steps of introducing an aqueous solution containing a metal ion salt into a reactor, introducing an aqueous solution containing a sulfonate surfactant and a polymer into the reactor, and operating the reactor such that the sparingly soluble sulfonate-metal salt particle forms from the interaction of the metal ion from the salt, the sulfonate surfactant and the polymer.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: December 17, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Yun Chea Chang, Mazen Y. Kanj
  • Patent number: 10472558
    Abstract: A method for recovering hydrocarbons in a carbonate reservoir by introducing a saline solution injection containing a saline soluble surfactant and a saline soluble polymer. The method provides for increased hydrocarbon recovery as compared to conventional waterflooding techniques.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 12, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ming Han, Ali Abdallah Al-Yousef, Salah Hamad Al-Saleh, Alhasan Fuseni
  • Patent number: 10457862
    Abstract: The present invention relates to a method which allows quick and effective hydration of associative polymers, in particular those intended for use in the field of oil drilling. This method uses a specific solid formulation, which can be easily hydrated, including, in a pre-mixture, said associative polymers and surfactants capable of improving the hydration of these polymers.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: October 29, 2019
    Assignee: RHODIA OPERATIONS
    Inventors: Arnaud Cadix, David James Wilson
  • Patent number: 10442979
    Abstract: Injection fluid tuning is provided. In one possible implementation, injection fluid can be tuned by accessing both surface properties of rock found in a hydrocarbon reservoir of interest and a chemical composition of oil found in the reservoir of interest. An ion effect on wettability of a contact surface of the rock can be acquired and then used to formulate a tuned ion solution based on the ion effect on wettability of the contact surface of the rock. In another possible implementation, an electrolyte solution has an ionic composition and an ionic concentration configured to enhance recovery of oil from a reservoir. The electrolyte solution includes a content of direct contact ions including monovalent ions with a static polarizability larger than a preset limit sufficient to influence a contact surface of a rock in the reservoir to reach a desired wettability.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: October 15, 2019
    Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, UNIVERSITY OF STRATHCLYDE
    Inventors: Wael Abdallah, Mikhail Stukan, Reza Taherian, Maxim Fedorov
  • Patent number: 10435618
    Abstract: Surfactant compositions useful for oil recovery are disclosed. The compositions comprise from 10 to 80 wt. % of a propoxylated C12-C20 alcohol sulfate, from 10 to 80 wt. % of a C12-C20 internal olefin sulfonate, and from 0.1 to 10 wt. % of an ethoxylated C4-C12 alcohol sulfate. Surprisingly, including a minor proportion of the ethoxylated alcohol sulfate reduces or eliminates the need to rely on costly cosolvents for achieving good performance in enhanced oil recovery processes. In particular, low interfacial tensions and low microemulsion viscosities can be achieved when the ethoxylated alcohol sulfate accompanies the propoxylated alcohol sulfate and internal olefin sulfonate. Aqueous concentrates comprising water and the surfactant compositions described above are also disclosed. Dilution of the surfactant composition or aqueous concentrate with water or brine to the desired anionic actives level provides an injectable composition useful for EOR applications.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 8, 2019
    Assignee: Stepan Company
    Inventors: Ramakrishna Ravikiran, Jieyuan Zhang
  • Patent number: 10400157
    Abstract: A composition comprising an alcohol ether sulfonate and a quaternary ammonium salt is provided for use in methods of increasing recovery of crude oil from a subterranean hydrocarbon-containing formation.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: September 3, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Duy T. Nguyen, Brian L. Mueller
  • Patent number: 10392551
    Abstract: A method of servicing a well is disclosed. The method comprises mixing ingredients to form a well servicing fluid. The ingredients comprise (i) at least one surfactant chosen from alcohol ethoxylates, C4 to C12 primary alcohols and ethoxylated propoxylated alcohols, (ii) a zwitterionic polymer prepared by inverse emulsion polymerization of at least one monomer Ab comprising a betaine group and optionally one or more nonionic monomers Ba, and (iii) a saline based aqueous solution. The well servicing fluid is introduced into a hydrocarbon well.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: August 27, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: D. V. Satyanarayana Gupta, Madhukar Chetty, Paul Carman
  • Patent number: 10370584
    Abstract: Recover petroleum from a subterranean formulation by injecting an aqueous solution comprising a polyethylene oxide nonionic surfactants and a disulfonated anionic surfactant.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: August 6, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Claribel Acevedo Velez, Wanglin Yu, Wanda G. Buckner, Joydeep Mukherjee
  • Patent number: 10337303
    Abstract: Additional oil recovery is obtained from a reservoir with a composition comprising at least a coupling solvent typically employed in waterborne coating compositions. Embodiments include recovering hydrocarbons using at least one coupling solvent, such as an oxygenated coupling solvent. The coupling solvent increases the mutual solubility with water at the injection temperature to facilitate the mixing and injection, particularly with an optional co-solvent. The coupling solvent helps mitigate formation plugging and improve performance when injected into a formation, as the solvent mixture moves from being miscible in the injection field water to being miscible in the reservoir oil, mobilizing the reservoir oil to increase oil recovery.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 2, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Varadarajan Dwarakanath, Robert G. Shong, Gregory Winslow, Taimur Malik, Marlon Solano
  • Patent number: 10329474
    Abstract: An oil recovery method by the modification of the rock wettability from hydrophilic to oleophilic using hydrophobic compounds. Specifically, the method relates to the application of oil-type emulsions in water based on hydrophobic compounds free of silicon and fluorine to increase the oil recovery in mature sandstone-type reservoirs after the injection of water.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: June 25, 2019
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Natalya Victorovna Likhanova, Iryna Igorevna Demikhova, Joaquin Rodolfo Hernandez Perez, Andres Eduardo Moctezuma Berthier, Crescencio Octavio Olivares Xometl, Miguel Angel Cuapantecatl Mendieta
  • Patent number: 10308863
    Abstract: A method of producing fluid from a formation containing hydrocarbons in which an aqueous polymer preflush fluid is injected into the formation followed by injection of an aqueous polymer displacement fluid, where the aqueous polymer preflush fluid has a total dissolved solids content that is greater than the total dissolved solids content of the aqueous polymer displacement fluid.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 4, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Leonardus Bartholomeus Maria Wassing, Esther Christianne Maria Vermolen, Mark Theodoor Looijer, Bartholomeus Marinus Josephus Maria Suijkerbuijk
  • Patent number: 10287485
    Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: May 14, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Subhash Chandrabose Ayirala, Ali Abdallah Al-Yousef, Abdulkareem M. Al-Sofi
  • Patent number: 10287483
    Abstract: Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises an aqueous phase, a non-aqueous phase comprising a terpene alcohol a non-oxygenated terpene, and a surfactant, and optionally, one or more additives.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 14, 2019
    Assignee: Flotek Chemistry, LLC
    Inventors: Hasnain Saboowala, Randal M. Hill, Paul Ashcraft, Melinda Soeung
  • Patent number: 10266744
    Abstract: The present invention relates to well drilling field in the petroleum industry, particularly to accelerator used for drilling fluids, water-based drilling fluid and usage thereof. The accelerator contains: sulfonated polyglycerol long-chain fatty acid ester, fatty alcohol polyoxyethylene ether, alcohol ether carboxylate, glycidyl ether, and polyoxyethylene alkylphenol ether; wherein, the weight ratio of the sulfonated polyglycerol long-chain fatty acid ester:the fatty alcohol polyoxyethylene ether:the alcohol ether carboxylate:the glycidyl ether:the polyoxyethylene alkylphenol ether is 100:1-10:0.5-10:1-10:1-10. The accelerator provided in the present invention can lubricate the drill bit and drilling tool, prevent accumulation of drill cuttings, reduce friction, and improve rate of penetrate.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 23, 2019
    Assignee: CHINA UNIVERSITY OF PETROLEUM (BEIJING)
    Inventors: Guancheng Jiang, Deli Gao, Shuo Zhang, Yong Wang, Xianzhu Wu, Liexiang Han, Xiangzeng Wang, Chunyao Peng, Yinbo He, Fan Liu, Hongguo Zuo, Yongqing Zhang, Lili Yang, Zhong Li, Yanjun Li
  • Patent number: 10253245
    Abstract: A method of preventing formation of a water and oil emulsion in a downhole formation containing oil, the method comprises preparing a dispersion of water and a plurality of nanoparticles, each nanoparticle in the plurality of nanoparticles having a size of at least 300 nanometers, and injecting the mixture downhole into contact with the oil downhole. Presence of the plurality of nanoparticles prevents formation of an emulsion between the injected water and the oil.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 9, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Remi Mahfouz, Aziz Fihri, Enrico Bovero, Abdullah A. Shahrani, Haitham Aljahani, Abdullah S. Al-Ghamdi, Ihsan Taie
  • Patent number: 10253243
    Abstract: Gas and condensate productivities from a hydrocarbon reservoir can be enhanced using a chemical treatment composition. The chemical treatment composition includes a solvent mixture and a wettability alteration chemical. The solvent mixture includes a solvent that is operable to increase the relative permeability of gas within the hydrocarbon reservoir and the wettability alteration chemical is operable to alter the wettability of surfaces of the hydrocarbon reservoir, in each case enhancing the gas and condensate productivities from the hydrocarbon reservoir. The solvent mixture is selected to provide a chemical treatment composition with a flash point of at least 40° C. (104° F.).
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: April 9, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammed Ali Ibrahim Sayed, Ghaithan A. Al-Muntasheri
  • Patent number: 10246981
    Abstract: A method of treating a subsurface formation with low permeability to increase total oil production from the formation is disclosed. The method may include providing a first fluid into two or more fractures emanating from a first wellbore. The first fluid may form additional fractures in the formation. The first fluid may also increase a minimum horizontal stress in zones substantially surrounding the fractures emanating from the first wellbore and the additional fractures formed. A zone having a lower minimum horizontal stress may be located between these zones. Additional fractures may be formed from a second wellbore in the formation with at least one of the additional fractures emanating from the second wellbore and propagating into the lower minimum horizontal stress zone. Hydrocarbons may be produced from the first wellbore and/or the second wellbore. A second fluid may be provided into the first wellbore after producing the hydrocarbons from the first wellbore.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 2, 2019
    Assignee: Statoil Gulf Services LLC
    Inventor: Huina Li
  • Patent number: 10233383
    Abstract: A flooding fluid for use in petroleum recovery from a petroleum-bearing formation is prepared by mixing an oxygen scavenger consisting essentially of an alkaline aqueous solution of at least one water-soluble borohydride with an aqueous or nonaqueous input fluid having oxygen dissolved therein to reduce the level of dissolved oxygen.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 19, 2019
    Assignee: MONTGOMERY CHEMICALS, LLC
    Inventor: Charles A. Lumsden
  • Patent number: 10227858
    Abstract: A computer-implemented method for determining one or more operating modes for a crude oil displacement system is provided. The crude oil displacement system is arranged to inject an aqueous displacement fluid into one or more reservoirs, each reservoir comprising a porous and permeable rock formation, wherein crude oil and formation water are contained within a pore space of the rock formation. The crude oil displacement system is for use in displacing crude oil from the pore space of the rock formation. The computer-implemented method comprises the steps of receiving measurement data associated with one or more chemical characteristics of the displacement fluid and one or more chemical characteristics of the rock formation, the crude oil and the formation water of the one or more reservoirs, and inputting the measurement data and data representing a predetermined volume of oil into a computer-implemented predictive model.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 12, 2019
    Assignee: BP EXPLORATION OPERATING COMPANY LIMITED
    Inventors: Ian Ralph Collins, Stephanie Jane Houston, Kevin John Webb
  • Patent number: 10202542
    Abstract: An aqueous slurry composition for use in industries such as petroleum and pipeline industries comprises an aqueous liquid, particulates, a hydrophobizing agent that renders the particulate surface hydrophobic and a hydrophobic polymer. The slurry is produced by rendering the surface of the particulate hydrophobic during or prior to making the slurry. The method and composition can find many applications in different industries, particularly in petroleum industry.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: February 12, 2019
    Inventors: Kewei Zhang, Julius Xaver Heidlas, Chuanzhong Wang, Weibing Lu
  • Patent number: 10202533
    Abstract: Stable water based High-Temperature-High-Pressure (HTHP) and/or Non-HTHP crosslinked copolymers for oil and gas applications consist of (i) a crosslinked, linear polyvinyl amide/polymerizable carboxylic acid) copolymer, having a composition, by weight, of 25-75 wt. % of a vinyl amide monomer selected from vinyl pyrrolidone, vinyl caprolactam, N-vinyl-N-methylacetamide and mixtures thereof, and 25-75 wt. % of a polymerizable carboxylic acid monomer selected from acrylic acid, (meth)acrylic acid, crotonic acid, itaconic acid, maleic acid and mixture thereof; and (ii) a crosslinker in an amount of 0.01-5% based on weight of total monomers. Also discloses relevant compositions comprising said copolymer and method of use thereof.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: February 12, 2019
    Assignee: ISP INVESTMENTS LLC
    Inventors: Janice Jianzhao Wang, Mohand Melbouci, Jeffrey Lynn, Cuiyue Lei, Osama M. Musa
  • Patent number: 10202540
    Abstract: The invention belongs to the field of oilfield chemistry and specifically relates to a zirconium gel particle combination flooding system. The zirconium gel particle combination flooding system comprises multi-scale 1 zirconium gel particles, polyether nonionic surfactant, and water as mixing liquid; the weight percentage of multi-scale zirconium gel particles in the combination flooding system ranges from 0.16% to 0.24%; the weight percentage of polyether nonionic surfactant in the combination flooding system ranges from 0.1% to 0.4%; the rest is water, and the sum of the weight percentage of the each component is 100%.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: February 12, 2019
    Assignee: CHINA UNIVERSITY OF PETROLEUM
    Inventors: Caili Dai, Guang Zhao, Qing You, Mingwei Zhao
  • Patent number: 10196478
    Abstract: The present invention relates to a composition comprising a lignin polyol, a method for the manufacturing of said composition and use thereof in different application areas, such as in adhesives, binders, castings, foams (such as in rigid polyurethane and polyisocyanurate foams for thermal insulation and construction applications, semi-rigid, flexible, moulded, laminated, microcellular and viscoelastic polyurethane foams), fillers, glues, sealants, elastomers and rubbers. The present invention also relates to a method for the manufacturing of a foam and use of this foam.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: February 5, 2019
    Assignee: Stora Enso OYJ
    Inventors: Henri J. M. Grünbauer, Dimitri Areskogh
  • Patent number: 10190051
    Abstract: An emulsion includes at least one polymeric surfactant, water and at least one organophosphorous compound. The emulsion may include from about 1% to about 40% of the polymeric surfactant and from about 40% to about 80% of the organophosphorous compound. The emulsion may further include at least one salt or additional surfactant. The at least one polymeric surfactant may include silicone-based surfactants, polyoxypropylene-based surfactants, graft copolymers of polysaccharides, and combinations thereof. The at least one polymeric surfactant may account for about 25% to about 100% by weight of the surfactant content in the emulsion and the at least one secondary surfactant, if present, may account for up to about 75% by weight of the surfactant content in the emulsion. The emulsion may have an average dispersed phase drop size of less than about 5 micron, or less than about 1 micron, after 6 months.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 29, 2019
    Assignee: ALEXIUM, INC.
    Inventor: Robert Neal Brookins
  • Patent number: 10190035
    Abstract: Provided herein are, inter alia, compositions including a surfactant and a phenol-alkoxylate co-solvent useful in enhanced oil recovery. The compositions and methods provided herein are particularly useful for oil recovery under a broad range of reservoir conditions (e.g. high to low temperatures, high to low salinity, highly viscous oils).
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: January 29, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: Upali P. Weerasooriya, Gary A. Pope
  • Patent number: 10167421
    Abstract: Provided herein are, inter alia, compositions including a surfactant and a phenol-alkoxylate co-solvent useful in enhanced oil recovery. The compositions and methods provided herein are particularly useful for oil recovery under a broad range of reservoir conditions (e.g. high to low temperatures, high to low salinity, highly viscous oils).
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 1, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: Upali P. Weerasooriya, Gary A. Pope
  • Patent number: 10161223
    Abstract: A method of hydraulically fracturing a subterranean formation penetrated by a wellbore comprises: providing a diverting fluid comprising a carrier fluid, a first superabsorbent polymer and a second superabsorbent polymer, the second superabsorbent polymer having a shape, or a composition, or a combination thereof different from that of the first superabsorbent polymer; injecting the diverting fluid into the subterranean formation; and injecting a fracturing fluid into the formation after injecting the diverting fluid. A viscosity modifying agent can be present in the diverting fluid. Superabsorbent polymers can also be used to develop a temporary filter cake at the formation face to reduce or eliminate the fluid leakoff out of the wellbore.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: December 25, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Jia Zhou, Harold Dean Brannon, Paul S. Carman, Leiming Li, Thomas Ray Starks, D. V. Satyanarayana Gupta, Harold G. Hudson, Scott G. Nelson
  • Patent number: 10138719
    Abstract: Oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. A bitumen recovery process may be used to extract bitumen from oil sands. Specifically, the bitumen recover process involves a step of treating oil sands with a propylene oxide capped glycol ether described by the structure: RO—(C2H4O)n—CH2CH(CH3)OH wherein R is a linear, branched, or cyclic alkyl, phenyl, alkyl phenyl group and n is 1 to 10.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 27, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Naoko Akiya, Edward D. Daugs, Felipe A. Donate, Harpreet Singh
  • Patent number: 10131830
    Abstract: A method of preventing formation of a water and oil emulsion in a downhole formation containing oil, the method comprises preparing a dispersion of water and a plurality of non-functionalized nanoparticles, each nanoparticle in the plurality of nanoparticles having a size of at least 300 nanometers, and injecting the dispersion into contact with the oil downhole. Presence of the plurality of nanoparticles prevents formation of an emulsion between the injected water and the oil.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 20, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Remi Mahfouz, Aziz Fihri, Enrico Bovero, Abdullah A. Shahrani, Haitham Aljahani, Abdullah S. Al-Ghamdi, Ihsan Taie
  • Patent number: 10119374
    Abstract: A method for simulating fluid flows in a petroleum reservoir to improve final oil recovery. The fluid comprises water, hydrocarbon, and surfactant components. The method comprises a flash step for calculating compositions via two stages. A first stage comprises a first flash to determine first compositions of the water, oil and gas phases and is performed by omitting the surfactant component in the fluid. A second stage comprises a second flash to determine a microemulsion composition of the microemulsion phase.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: November 6, 2018
    Assignee: TOTAL SA
    Inventors: Leonardo Patacchini, Romain De Loubens, Arthur Moncorge
  • Patent number: 10113098
    Abstract: Various embodiments disclosed relate to compositions including a viscosifier polymer and a polyamine viscosity modifier and methods of using the same for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in a subterranean formation a composition including a viscosifier polymer and a polyamine viscosity modifier.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: October 30, 2018
    Assignee: Halliburton Energy Servives, Inc.
    Inventors: Kay Ann Galindo, Weibin Zha, Jay Paul Deville, Hui Zhou
  • Patent number: 10106725
    Abstract: Provided herein are inter alia non-surfactant aqueous compositions and methods having application in the field of enhanced oil recovery. In particular, non-surfactant compositions including light co-solvents and an alkali agent presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 23, 2018
    Assignee: Board of Regents, The University of Texas System
    Inventors: Upali P. Weerasooriya, Gary A. Pope
  • Patent number: 10106726
    Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: October 23, 2018
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Subhash Chandrabose Ayirala, Ali Abdallah Al-Yousef, Abdulkareem M. Al-Sofi
  • Patent number: 10081748
    Abstract: The present invention relates to a method for thickening a hydrophobic liquid. When a hydrophobic liquid is thickened in accordance with the invention, the liquid becomes significantly denser. Preferably, the hydrophobic liquid becomes a gel.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: September 25, 2018
    Assignee: The Research Foundation of The City University of New York
    Inventors: George John, Swapnil R. Jadhav, Praveen Kumar Vemula
  • Patent number: 10071919
    Abstract: Methods for extracting oil from a multiphasic liquid are provided. The method can comprise: introducing the multiphasic liquid to a plurality of nanoparticles, and allowing oil in the multiphasic liquid to be adsorbed by the polymeric shell. The nanoparticles comprise a core and a polymeric shell. The method can further comprise removing the nanoparticles from the multiphasic liquid, and/or recovering the oil adsorbed by the polymeric shell after removing the nanoparticles from the multiphasic liquid. The multiphasic liquid can comprise oil and water (e.g., oil and sea water, such as sea water in an area of an oil spill), stomach fluid and a food-grade oil (e.g., olive oil, vegetable oil, canola oil, or a mixture thereof), or other multiphasic liquids having an oil component.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 11, 2018
    Assignee: University of South Carolina
    Inventor: Jamie Lead
  • Patent number: 10053966
    Abstract: Herein are provided tools and processes for extracting oil from subterranean formation. The processes can include lightening the oil in the formation prior to extraction by the addition of a nanogas solution. The tools include injectors for the formation of the nanogas solution within the subterranean formation.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: August 21, 2018
    Assignee: Nano Gas Technologies Inc.
    Inventors: Jeffrey K Hardin, Scott A. Fiedler, Rudy M Folds
  • Patent number: 10053616
    Abstract: A method for increasing production in a liquid hydrocarbon reservoir formation comprising the steps of introducing a nanoencapsulated composition solution capable of reducing the surface tension of a liquid hydrocarbon fraction, where the nanoencapsulated composition solution comprises a nanocapsule and a carrier fluid, such that the nanocapsule is dispersed in the carrier fluid; allowing the nanoencapsulated composition solution to interact with the liquid hydrocarbon fraction such that the surface tension of the liquid hydrocarbon fraction is reduced such that at least a portion of the liquid hydrocarbon fraction is capable of being displaced; introducing a water fraction into the wellbore under conditions such that at least a portion of the liquid hydrocarbon fraction is displaced from the liquid hydrocarbon reservoir formation; and recovering the at least a portion of the liquid hydrocarbon fraction and at least a portion of the nanoencapsulated composition solution using the wellbore.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 21, 2018
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventor: Yun Chang
  • Patent number: 10047272
    Abstract: Methods including providing a treatment fluid comprising a base fluid, a wettability altering surfactant, and a chelating agent, wherein the treatment fluid has a pH of at least about 5; introducing the treatment fluid into a subterranean formation; altering a wettability of the subterranean formation from oil-wet to either mixed-wet or water-wet with the wettability altering surfactant; and complexing metal ions in the subterranean formation with the chelating agent.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 14, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Pubudu H. Gamage, Cato Russell McDaniel, William Walter Shumway
  • Patent number: 10047274
    Abstract: Disclosed herein are inversion systems and methods of diluting w/o lattices including about 10 wt % to 80 wt % of a water soluble polymer. Using the inversion systems and methods described herein, dilution of w/o lattices is carried out in a single step to form dilute lattices having 10,000 ppm or less polymer; the dilute lattices form polymer solutions with no further addition of mixing force or water. The solution viscosities of the polymer solutions obtained using the systems and methods of the invention are at least about 80% of solution viscosity expected in the absence of shear.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 14, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Zachary Wilson Logan, William J. Andrews, Kerry C. Brinkman, Peter E. Reed, Warren T. Gillenwater, Heinrich Bode, Martin David Biggs
  • Patent number: 10030194
    Abstract: The invention relates to a method of treating a hydrocarbon containing formation, comprising the following steps: a) preparing an internal olefin sulfonate, comprising sulfonating an internal olefin into sulfonated internal olefin followed by contacting sulfonated internal olefin with a base containing solution resulting in the internal olefin sulfonate, wherein sulfonated internal olefin is contacted with the base containing solution in the presence of a non-ionic surfactant, and/or after step a) but before step b), the internal olefin sulfonate and said non-ionic surfactant are combined; b) transporting an aqueous solution comprising the internal olefin sulfonate and the non-ionic surfactant to the location of the hydrocarbon containing formation; c) providing the internal olefin sulfonate and the non-ionic surfactant to at least a portion of the hydrocarbon containing formation; and d) allowing the internal olefin sulfonate and the non-ionic surfactant to interact with the hydrocarbons in the hydrocarbon c
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 24, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Julian Richard Barnes, James Laurel Buechele, Hendrik Dirkzwager, Robert Hardy Ellison, Johan Paul Smit
  • Patent number: 10023787
    Abstract: Methods for selecting a surfactant for treating a subterranean formation based on the performance of the surfactant and the characteristics of the subterranean formation and the treatment fluids that may be used to treat that formation are provided. In one embodiment, the method may comprise providing a treatment fluid, formation materials, hydrocarbon, and a plurality of surfactants, wherein the hydrocarbon is acquired from a subterranean formation; selecting at least two surfactants from the plurality of surfactants by determining whether each of the plurality of surfactants separates a mixture of the treatment fluid and the hydrocarbon; and selecting at least one surfactant from the at least two surfactants by determining whether the hydrocarbon displaces the treatment fluid from the formation materials in the presence of each of the at least two surfactants.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 17, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Denise Nicole Benoit, Chandra Sekhar Palla-Venkata, Jody Marie Burks, Nathan Carl Schultheiss, Ali Alwattari, David Loveless, James William Ogle, Thomas Welton
  • Patent number: 10000688
    Abstract: The invention relates to a hydrocarbon recovery composition comprising an anionic surfactant, wherein said composition is in the solid state, and to a shaped article comprising said composition. Preferably, said composition is in the form of a powder. Further, the invention relates to a process for treating a hydrocarbon containing formation comprising the steps of a) transporting said composition or shaped article to the location of the hydrocarbon containing formation; b) dissolving said composition or shaped article in water thereby forming an aqueous fluid containing the hydrocarbon recovery composition; c) providing the aqueous fluid containing the hydrocarbon recovery composition to at least a portion of the hydrocarbon containing formation; and d) allowing the hydrocarbon recovery composition to interact with the hydrocarbons in the hydrocarbon containing formation.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: June 19, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Julian Richard Barnes, Hendrik Dirkzwager, Robert Moene, Reinaldo Conrado Navarrete, Kirk Herbert Raney
  • Patent number: 9988571
    Abstract: The present disclosure provides a surfactant formulation for use in treating and recovering fossil fluid from a subterranean formation. The surfactant formulation includes a primary surfactant, a formulation stability agent and injection water. The surfactant formulation may be injected into one or more injection wells located within the subterranean formation and fossil fluids can then be subsequently recovered from one or more producing wells.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: June 5, 2018
    Assignee: HUNTSMAN PETROCHEMICAL LLC
    Inventors: Luis C. Salazar, David C. Lewis, Guy Biesmans, Srinivasa S. Godavarthy, Farron W. Miller
  • Patent number: 9951263
    Abstract: A process for the recovery of heavy oil from an underground reservoir, comprising: injecting an oil-in-water nanoemulsion into one or more injection wells; recovering said heavy oil from one or more production wells. Said process is particularly advantageous for enhancing the recovery of heavy oils from underground reservoirs within the range of technologies for tertiary recovery, usually known as “EOR” (Enhanced Oil Recovery”).
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: April 24, 2018
    Assignee: ENI S.p.A.
    Inventors: Lucilla Del Gaudio, Claudio Riccardo Pratesi, Alessandra Belloni, Iole Moroni