Patents Examined by Jeffrey Washville
  • Patent number: 9994762
    Abstract: Methods and compositions for stimulating of the production of hydrocarbons (e.g., formation crude oil and/or formation gas) from subterranean formations are provided. In some embodiments, the compositions are emulsions or microemulsions, which may include water, a terpene, and a surfactant. In some embodiments, methods of selecting a composition for treating an oil or gas well are provided.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 12, 2018
    Assignee: Flotek Chemistry, LLC
    Inventors: Randal M. Hill, Lakia M. Champagne, Nathan L. Lett, Maria Elizabeth Green, Hasnain Saboowala
  • Patent number: 9988570
    Abstract: A composition for viscosifying a nonaqueous base liquid. The composition has glycerin carbonate and optionally an alkoxylated alcohol having the formula: wherein R is a linear or branched alkyl from 2 to 18 carbon atoms, or an aromatic radical having the structure: where R1 is a branched or linear alkyl having from 2 to 18 carbon atoms R2 is H or CH3 R3 is H or CH3 a is from 0 to 12 and b is from 1 to 12. The base liquid having greater than 20% naphthenics and about 10% to about 35% isoparaffins.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 5, 2018
    Assignee: Sasol Performance Chemicals GmbH
    Inventors: Jorge M. Fernandez, Christian W. Jones
  • Patent number: 9982183
    Abstract: The present invention relates to processes for consolidating an underground formation with a consolidating mineral. The consolidating material is a carbonate and is produced from an alkaline treatment fluid containing, in at least some embodiments, environmentally friendly and inexpensive components. In one embodiment, the process can be applied to consolidation of an underground formation during or following drilling. The present invention also provides a treatment fluid suitable for use in such processes.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: May 29, 2018
    Assignee: Cleansorb Limited
    Inventor: Duncan Holdsworth
  • Patent number: 9975813
    Abstract: Synthetic ceramic proppants are described. Methods to make these proppants and methods of using these proppants are also described.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: May 22, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Erik Koep, Chadra Khadilkar, Christopher Y. Fang
  • Patent number: 9976072
    Abstract: The present disclosure generally relates to a multicarboxylate, such as an alkyl alkoxy dicarboxylate a method of making the multicarboxylate, and methods to use the multicarboxylate. A specific embodiment of the disclosure is a compound comprising the chemical formula: R1-R2-R3, wherein R1 comprises a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having 7-150 carbon atoms; an oxygen atom linking R1 and R2; R2 comprises an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 comprises a branched or unbranched hydrocarbon chain comprising 2-12 carbon atoms and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. The composition has a variety of uses but in some embodiments may be used in enhanced oil recovery processes.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 22, 2018
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Robert George Shong, Varadarajan Dwarakanath, Gregory A. Winslow, Sophany Thach
  • Patent number: 9968684
    Abstract: The invention relates to polymer-drug conjugate for delivering a substituted alkanoic acid non-steroidal anti-inflammatory drug (NSAID). The invention also relates to drug delivery systems comprising the polymer-NSAID conjugate. The polymer-NSAID conjugates comprise a substituted alkanoic acid non-steroidal anti-inflammatory drug (NSAID) conjugated to a biodegradable polymer backbone by an ester linkage.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: May 15, 2018
    Assignee: POLYACTIVA PTY LTD
    Inventors: Asha Marina D'Souza, Andrew Craig Donohue, Russell John Tait, Florian Hans Maximilian Graichen, Sarah Man Yee Ng, Adrian Sulistio
  • Patent number: 9969930
    Abstract: Ceramic inks formulated for additive formation of proppants are provided, as well as methods of manufacturing such ink and ink systems including such ink. The proppant formed can contain a proppant core, a proppant shell, a proppant outer coating or any combination thereof. Additive methods for forming proppants are also provided. The ceramic ink can be applied drop-wise, linearly, in a planar fashion, or any combination thereof to form proppants. Additive fabricators configured to produce proppant are further provided, as are systems including the same and software for running the same.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: May 15, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Steven Florio, Christopher E. Coker
  • Patent number: 9969927
    Abstract: A treatment fluid composition for treating a subterranean formation penetrated by a well bore is formed from an aqueous fluid, a hydratable polymer and an inorganic peroxide breaking agent, which is classified as a stable, non-oxidizer according to UN standards but which retains oxidizing properties as measured by the content of available oxygen. A method of treating a subterranean formation penetrated by a well bore may also be performed by forming a treatment fluid from an aqueous hydrated polymer solution. This is combined with a stable, inorganic peroxide breaking agent. The treating fluid is then introduced into the formation. An optional crosslinking agent capable of crosslinking the polymer may also be included.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: May 15, 2018
    Assignee: TUCC Technology, LLC
    Inventors: James W. Dobson, Jr., Shauna L. Hayden, Kim O. Tresco
  • Patent number: 9969925
    Abstract: A cleaning agent, which comprises a mutual solvent, a carrier fluid, a nonionic surfactant and another nonionic surfactant as co-surfactant. The cleaning agent can be used, for example, to clean oil and water based drilling mud and water-wet the surface.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 15, 2018
    Assignee: Wellbore Chemicals LLC
    Inventor: Jinguo Zhang
  • Patent number: 9969921
    Abstract: The present application relates to an oil and gas treatment composition comprising (i) a blend of hydroxyethyl cellulose (HEC) and crosslinked polyvinylpyrrolidone, (ii) an aqueous based continuous phase, (iii) a reactive clay or shale material, and (iv) at least one drilling fluid additive. The present application also relates to a method for inhibiting hydration of clays or shale materials in drilling a subterranean well using the composition. A different embodiment of the application discloses that the composition additionally comprises organophilic clay, a stabilizer and white medicinal oil.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 15, 2018
    Assignee: HERCULES LLC
    Inventors: Jianzhao Wang, Mohand Melbouci
  • Patent number: 9957439
    Abstract: Friction reducers for hydraulic fracturing fluids, hydraulic fracturing fluids containing the friction reducers, and methods of making and using same are disclosed. The friction reducers comprise ethylene oxide polymers, propylene oxide polymers, ethylene oxide-propylene oxide co-polymers, and combinations thereof, and can further comprise a dispersant, such as polypropylene glycol. The friction reducer formulations can be active across a wide range of brine salinities, and tolerant of high levels of divalent cations in solution. The friction reducers can have a cloud point temperature, above which temperature they can precipitate out of solution and deposit on a surface of a hydrocarbon-bearing formation to inhibit hydration of the shale formations lining the fractures.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 1, 2018
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Eric van Oort, John David Downs
  • Patent number: 9951267
    Abstract: Proppant compositions and methods for using same are disclosed herein. In particular, a proppant composition for use in hydraulic fracturing is disclosed herein. The proppant composition can contain a plurality of particulates and at least one particulate of the plurality of particulates containing a chemical treatment agent. The at least one particulate having a long term permeability measured in accordance with ISO 13503-5 at 7,500 psi of at least about 10 D. The at least one chemical treatment agent can separate from the at least one particulate when located inside a fracture of a subterranean formation after a period of time.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 24, 2018
    Assignee: CARBO CERAMICS INC.
    Inventors: Robert Duenckel, Mark Conner, Chad Cannan, Todd Roper, Joshua Leasure, Thu Lieng, Daniel Cady, Peter A. Read
  • Patent number: 9944845
    Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating is formed from a curable composition comprising an isocyanate, an acrylate, and a polyol. A method of forming the proppant includes the steps of combining the isocyanate, the acrylate, and the polyol to form the curable composition, coating the particle with the curable composition, and curing the curable composition to form the polymeric coating.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 17, 2018
    Assignee: BASF SE
    Inventors: Christopher M. Tanguay, Yeonsuk Roh, Rajesh Kumar
  • Patent number: 9938453
    Abstract: Composition and methods using the compositions are disclosed, where the compositions include heterocyclic aromatic amines, substituted heterocyclic aromatic amines, poly vinyl heterocyclic aromatic amines, co-polymers of vinyl heterocyclic aromatic amine and non amine polymerizable monomers (ethylenically unsaturated mononers and diene monomers), or mixtures or combinations thereof reacted with sulfonic acids, alkyl sulfonic acids, sulfosuccinates, sulfamic acids, sulfuric acids or partially neutralized amine or other alkali sulfonate and/or reacted with alpha hydroxyl carboxcylic acids which form coatings that alter self-aggregating properties and/or aggregation propensities of the particles and surfaces. Furthermore, the coating can be used to improve filtration of fluids through particulate matter and it is found that the coating will increase hydrocarbon liquid and gas flow through or over treated particulates and surfaces.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 10, 2018
    Assignee: Sumisaujana TCM Chemicals Sdn. Bhd.
    Inventors: Raynard Veldman, Arthur Thomas Gilmer, Mohammad Zaki Hasra Shafie, Norazlam Norbi
  • Patent number: 9932519
    Abstract: A method for forming particles having a ridge portion includes inducing flow of a slurry of particles and a reactant through one or more orifices, detaching an amount of the slurry from the slurry flow following exit from the one or more orifices, the detached amount forming a slurry body, forming the slurry body into a particle shape, contacting the particle shaped slurry body with a coagulation solution to form a stabilized particle having the ridge portion, and drying and/or sintering the particle having the ridge portion.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: April 3, 2018
    Assignee: Schlumberger Technology Corporation
    Inventors: Jiangshui Huang, Jose Alberto Ortega Andrade, Bernhard Rudolf Lungwitz
  • Patent number: 9932521
    Abstract: A self-suspending proppant comprises a proppant particle substrate carrying a coating of an anionic hydrogel-forming polymer. The detrimental effect of calcium and other divalent ions on the ability of the proppant to swell when contacted with water is reduced by including a calcium binding agent in the proppant.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: April 3, 2018
    Assignee: SELF-SUSPENDING PROPPANT, LLC
    Inventors: David S. Soane, Robert P. Mahoney, Marie K. Herring, Kevin P. Kincaid, Rosa Casado Portilla
  • Patent number: 9932520
    Abstract: Composition and methods using the compositions are disclosed, where the compositions include heterocyclic aromatic amines, substituted heterocyclic aromatic amines, poly vinyl heterocyclic aromatic amines, co-polymers of vinyl heterocyclic aromatic amine and non amine polymerizable monomers (ethylenically unsaturated mononers and diene monomers), or mixtures or combinations thereof reacted with sulfonic acids, alkyl sulfonic acids, sulfosuccinates, sulfamic acids, sulfuric acids or partially neutralized amine or other alkali sulfonate and/or reacted with alpha hydroxyl carboxcylic acids which form coatings that alter self-aggregating properties and/or aggregation propensities of the particles and surfaces. Furthermore, the coating can be used to improve filtration of fluids through particulate matter and it is found that the coating will increase hydrocarbon liquid and gas flow through or over treated particulates and surfaces.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 3, 2018
    Assignee: Sumisaujana TCM Chemicals Sdn. Bhd.
    Inventors: Raynard Veldman, Arthur Thomas Gilmer, Mohammad Zaki Hasra Shafie, Norazlam Norbi
  • Patent number: 9932516
    Abstract: In a slick-water fracturing operation, a composition is used to prevent the interaction between a polymer in a water-based fracturing fluid and naturally-occurring metal ions. The composition includes a metal-complexing agent, such as a chelating agent. The chelating agent can also be biodegradable and is citric acid in embodiments. The metal-complexing agent can be coated with one or two coatings to create a time-released form. The time-released form prevents loss of the agent prior to delivery at the shale.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 3, 2018
    Assignee: Flex-Chem Holding Company, LLC
    Inventor: Andrew Bryce Conway
  • Patent number: 9932514
    Abstract: An aqueous slurry composition for use in industries such as petroleum and pipeline industries, such as for use as a fracturing fluid. The aqueous slurry composition includes a particulate, an aqueous liquid and a chemical compound that renders the particulate surface hydrophobic. The slurry is produced by rendering the surface of the particulate hydrophobic during or prior to making the slurry.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 3, 2018
    Inventors: Kewei Zhang, Shang Ying Liu, Chuanzhong Wang, Weibing Lu
  • Patent number: 9932244
    Abstract: The invention relates to the proppants and proppant substrates treated with active compounds that reduce the presence of contaminants in fluids, methods of using those materials, as well as methods of making those materials. The invention further provides that the contaminated fluids are associated with wells, including oil and gas wells.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: April 3, 2018
    Assignee: THE FRAZER AND CRUICKSHANK
    Inventors: Missy Hayes, Gina Sacco, Nancy S. Sherwood