Carboxyalkylcellulose (e.g., Cmc, Cmhec, Etc.) Patents (Class 507/215)
  • Publication number: 20150114648
    Abstract: Fluids including a parylene-coated chemical entity and methods of treating a subterranean formation with such fluids are disclosed. The methods may include introducing a treatment fluid into a subterranean formation, the treatment fluid containing a parylene-coated particle having a chemical entity encapsulated therein.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Andrey Mirakyan, Richard Hutchins, Sergey Makarychev-Mikhailov
  • Publication number: 20150114638
    Abstract: The disclosed compositions and methods provide a system that is effective for hydraulic fracturing, which can be used to extract natural gas and oil from subterranean formations, such as deep shale and coal bed type rack formations. In a first aspect, the invention features a composition for hydraulic fracturing, which includes a low pH product, a surfactant, and a thickening agent, all in an aqueous composition. The composition includes i) from about 0.01 wt % to about 20.0 wt % of a low pH product that includes an ammonium salt (e.g., ammonium bicarbonate, ammonium carbonate, or ammonium hydroxide) and hydrogen chloride (and optionally a carborane).
    Type: Application
    Filed: May 13, 2013
    Publication date: April 30, 2015
    Inventor: Glenn Louis TAYLOR
  • Patent number: 9018143
    Abstract: A method for breaking the viscosity of an aqueous fluid gelled with a water soluble polymer or a VES is disclosed. The method includes providing an aqueous fluid. The method also includes adding to the aqueous fluid, in any order: a water soluble polymer in an amount sufficient to form a gelled aqueous fluid having a viscosity, a water soluble oxidizing agent configured to generate free radicals and a plurality of metallic particles to produce a mixture comprising dispersed metallic particles dispersed within the gelled aqueous fluid, the metallic particles configured to dissolve in the gelled aqueous fluid and provide a reducing agent to accelerate the generation of free radicals. The method further includes dissolving the metallic particles in the gelled aqueous fluid to provide a source of at least one transition metal ion in an amount effective accelerate the generation of free radicals and reduce the viscosity.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 28, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Publication number: 20150075789
    Abstract: Boronated biopolymer crosslinking agents useful in producing viscosified treatment fluids that include an aqueous fluid, a base polymer, and the boronated biopolymer crosslinking agent, wherein the boronated biopolymer crosslinking agent comprises a biopolymer derivatized with a boronic acid, a boronate ester, or both. Such viscosified treatment fluids may be useful in fracturing operations, gravel packing operations, drilling operations, and the like.
    Type: Application
    Filed: January 23, 2014
    Publication date: March 19, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Dipti Singh, Jeremy Holtsclaw, B. Raghava Reddy
  • Publication number: 20150080271
    Abstract: The present invention relates to a foam containing water, between 5 and 30 wt % on total weight of the foam of a chelating agent selected from the group of glutamic aid N,N-diacetic acid or a salt thereof (GLDA), aspartic acid N,N-diacetic acid or a salt thereof (ASDA), methylglycine N,N-diacetic acid or a salt thereof (MGDA), N-hydroxyethyl ethylenediamine-N,N?,N?-triacetic acid or a salt thereof (HEDTA), a foaming agent, and at least 25 vol % on total volume of the foam of a gas, and having a pH of between 2 and 5, to a viscosified composition containing water, between 5 and 30 wt % on total volume of the composition of a chelating agent selected from the group of glutamic aid N,N-diacetic acid or a salt thereof (GLDA), aspartic acid N,N-diacetic acid or a salt thereof (ASDA), methylglycine N,N-diacetic acid or a salt thereof (MGDA), N-hydroxyethyl ethylenediamine-N,N?,N?-triacetic acid or a salt thereof (HEDTA), and at least 0.
    Type: Application
    Filed: April 24, 2014
    Publication date: March 19, 2015
    Inventors: Cornelia Adriana De Wolf, Hisham Nasr-El-Din, Edwin Rudolf Antony Bang, Guanqun Wang, Josef Johannes Maria Baltussen, Conrardus Hubertus Joseph Theeuwen, Boen Ho O, Marcel Cornelis Paulus Van Eijk
  • Patent number: 8975217
    Abstract: Methods are provided for treating a portion of a well. The method according to this aspect comprises the steps of: (A) forming a treatment fluid, the treatment fluid comprising: (i) water; (ii) a water-soluble polymer; (iii) a complexed metal cation that: (a) has a valence state of at least three; and (b) is capable of cross-linking the water-soluble polymer; and (iv) an aromatic compound that is capable of dissolving, melting, or chemically decomposing, dissociating, or reacting, to form a chelating agent, wherein the chelating agent comprising vicinal substituents containing donor heteroatoms, and wherein the chelating agent is capable of chelating the metal cation; and (B) introducing the treatment fluid into the well.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 10, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Rajesh K. Saini, Sherry G. Gaskins
  • Patent number: 8969261
    Abstract: A composition for enhancing fluid viscosity including a mixture of at least one cationic or cationizable polymer and at least one anionic or anionizable (hydrolysable) polymer. The composition has a zeta potential at 25° C. in the range of 0.5 to 100 mV or ?0.5 to ?100 mV, typically 1 to 60 mV or ?1 to ?60 mV, or is a precursor convertible at a temperature of 100 to 250° C. to the composition having a zeta potential at 25° C. of 0.5 to 100 mV or ?0.5 to ?100 mV, typically 1 to 60 mV or ?1 to ?60 mV. Typically the compositions exhibit salt tolerance and interaction of both polymers at very high temperatures (>300° F.) such that the system exhibits an increase of viscosity at extreme temperatures. The compositions are useful for hydraulic fracturing, enhanced oil recovery, subterranean acidization, personal care as well as home and industrial cleaners.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: March 3, 2015
    Assignee: Rhodia Operations
    Inventors: Ruela Talingting Pabalan, Nemesio Martinez-Castro, Subramanian Kesavan, Marie Pierre Labeau, Bruno Langlois
  • Publication number: 20150053409
    Abstract: A well treatment method includes forming a well treatment fluid by combining ingredients including a polymer, a crosslinker, an acidifying substance, and a base fluid. Crosslinking increases viscosity of the fluid during a development time. A pH decrease is controlled during the development time using the acidifying substance. The method also includes delaying the development time of the viscosity increase by controlling the pH decrease. A well treatment method includes forming a well treatment fluid by combining ingredients including a hydratable polymer, a crosslinker, an acidifying substance, and a base fluid. The method includes delaying development time of a viscosity increase by controlling a pH decrease without adding further acidifying substance after combining the polymer, crosslinker, acidifying substance, and base fluid. A well treatment fluid formulated with ingredients include a base fluid, a polymer, a crosslinker, and an acidifying substance.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: MAGNUS U. LEGEMAH, PAUL S. CARMAN, RUPA VENUGOPAL, HONG SUN
  • Publication number: 20150057195
    Abstract: Improved hydraulic fracturing compositions are disclosed which help reduce potential negative environmental impact by hydraulic fracturing. The disclosed compositions have flammability and toxicity and are relatively safe for the environment. The compositions may also contain biodegradable components.
    Type: Application
    Filed: November 4, 2014
    Publication date: February 26, 2015
    Inventor: Courtney Gene Rogers
  • Publication number: 20150034315
    Abstract: A method includes providing an oilfield treatment fluid including an aqueous HCl solution having greater than 15% HCl by weight, and a fixing agent (FA) in a molar ratio of FA:HCl of between 0.5 and 2.5 inclusive. The FA is urea and/or a urea derivative. The oilfield treatment fluid further includes a viscosifying agent that is not a plant-based polysaccharide gum. The method further includes providing the oilfield treatment fluid to a high pressure pump, and operating the high pressure pump to treat a formation fluidly coupled to a wellbore.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 5, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Li Jiang, Bruno Lecerf, Murtaza Ziauddin, Jian He, Boingoc Dang
  • Publication number: 20150027702
    Abstract: Methods of treating a subterranean formation are disclosed that include placing a treatment fluid into a subterranean formation, the treatment fluid containing a one or more polymers capable of consolidating to form a polymeric structure at a downhole location. Also disclosed are treatment fluids including a polymeric structure for treating a subterranean formation.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 29, 2015
    Inventors: Jazmin Godoy-Vargas, Sergey Makarychev-Mikhailov, Brent Busby, Philip Sullivan, Patrice Abivin, Marie Cambournac
  • Publication number: 20150021033
    Abstract: A thixotropic agent comprised of a gel which is comprised of a polymeric organic material cross-linked with certain boehmite aluminas having a crystallite size of less than about 100 ? as measured on the 120 plane.
    Type: Application
    Filed: August 22, 2012
    Publication date: January 22, 2015
    Inventor: David A. Barclay
  • Publication number: 20150005205
    Abstract: A method includes adding an amount of chlorine dioxide from about 10 ppm to about 400 ppm to an aqueous base fluid to provide a treated fluid, adding a water-soluble polymer to the treated fluid, thereby forming a hydrated polymer, the amount of chlorine dioxide added confers a viscosity increase allowing a reduction in the amount of water-soluble polymer to obtain a target viscosity by about 25% to about 75% relative to a control fluid lacking chlorine dioxide.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventor: John Mason
  • Publication number: 20140352967
    Abstract: A method of using a water based solution having a controllable gel time. The method includes providing a predetermined ratio of a water soluble silicate solution having at least one alkali metal, providing a predetermined ratio of a water dispersible polymer, and providing a predetermined ratio of a water soluble initiator containing a reactive carbonyl compound. One embodiment of the method also includes combining the water soluble silicate solution, the dispersible polymer, and the water soluble initiator and injecting downhole in a single stage treatment. Another embodiment of the method includes pre-mixing at least the water soluble silicate solution and the dispersible polymer into a mixture, then injecting the water soluble initiator and the mixture downhole separately for a multi-stage treatment with in situ mixing.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Inventors: Lyle D. Burns, Kenneth D. Oglesby, Michael A. Burns
  • Patent number: 8883695
    Abstract: Reduction of the water permeability within a subterranean formation, particularly within a proppant pack or a gravel pack, can be achieved through the use of a relative permeability modifier (RPM) coated on a particulate material. Methods for reducing the water permeability include providing RPM-coated particulates that contain a RPM coating on the particulates, and placing a treatment fluid containing a base fluid and the RPM-coated particulates in at least a portion of a subterranean formation. The treatment fluid can also contain a companion polymer that serves to further reduce the water permeability compared to that achievable when using the RPM alone.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry S. Eoff, Bradley L. Todd, David B. Allison
  • Publication number: 20140315766
    Abstract: Methods of treating a subterranean formation including providing a treatment fluid comprising a brine base fluid and an anionic carboxylated polysaccharide, wherein the brine base fluid comprises a concentration of salt in the range of from about 30,000 ppm to saturation and a pH in the range of from about 4 to about 8, and wherein the anionic carboxylated polysaccharide is present in the range of from about 0.05% to about 2% by weight of the treatment fluid; and introducing the treatment fluid into the subterranean formation.
    Type: Application
    Filed: April 22, 2013
    Publication date: October 23, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Paul D. Lord, Renee A. LeBas, Jim D. Weaver
  • Publication number: 20140305643
    Abstract: A granulated mica composition may include mica having an average particle size less than about 20 mesh, and 0.01% to about 1.0% of a water soluble binder. The granulated mica composition may have a granule size greater than about 20 mesh. A process for producing a granulated inorganic particulate composition for use in oilfield applications may include mixing at least one inorganic particulate having an average particle size of less than about 20 mesh with water and at least one binder, and agglomerating the resulting mixture to form a granulated inorganic particulate having an average particle size of greater than about 20 mesh. A method for treating a subterranean formation may include admixing a granulated inorganic particle composition into a fluid, such that the inorganic particulate is dispersed into the fluid as a suspended inorganic particulate, and injecting the fluid and suspended inorganic particulate into the subterranean formation.
    Type: Application
    Filed: November 28, 2012
    Publication date: October 16, 2014
    Applicant: Imerys Oilfield Minerals, Inc.
    Inventors: Mark Windebank, Jonathan Phipps, Thomas Parias, Roger Williams, David Guetta
  • Patent number: 8853135
    Abstract: The invention discloses a method of treating a wellbore by providing an aqueous mixture of a hydrated polysaccharide with a salt; adding to the mixture a cross-linking agent for cross-linking the hydrated polysaccharide, wherein the cross-linking agent comprises a zirconium compound, glutamic acid, and a polyol; pumping the aqueous mixture of the hydrated polysaccharide and the cross-linking agent into the wellbore; and cross-linking the hydrated polysaccharide.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: October 7, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Alhad Phatak, Michael D. Parris
  • Publication number: 20140274818
    Abstract: Ceramic propping agents include a plastic clay, aluminosilicate network modifier, strength enhancing agent, and binder. Usable strength enhancing agents can include nepheline materials having 0.1 to 5 percent iron oxide by weight. A resin coating can be used to encapsulate particles of the ceramic propping agent. The propping agent can be produced by grinding the components to the same approximate particle size, nucleating the particles by adding water, growing the resulting spherical pellets by adding additional particles that adhere to the surface of the spherical pellets, and vitrifying the pellets to form the propping agent.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 18, 2014
    Applicant: Brownwood Clay Holdings, LLC
    Inventors: Bryan Dell Geary, Carlton Frazier Sorrell, Richard F. Watkins, Gary J. Davis
  • Publication number: 20140196902
    Abstract: A method, system, and composition for producing oil from a formation utilizing an oil recovery formulation comprising a surfactant, an ammonia liquid, an alkali metal carbonate or bicarbonate, a polymer, and water are provided.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 17, 2014
    Applicant: SHELL OIL COMPANY
    Inventors: Jeffrey George SOUTHWICK, Yi SVEC, Gordon Thomas SHAHIN
  • Patent number: 8720563
    Abstract: A cement composition for use in an oil or gas well, the cement composition comprises: a calcium aluminate cement; water; an organic acid; and a polymeric mixture comprising: (A) water; (B) citric acid; (C) a first polymer, wherein the first polymer: (i) comprises a cellulose backbone and carboxymethyl functional groups; and (ii) has a molecular weight of less than 100,000; and (D) a second polymer, wherein the second polymer: (i) comprises a lignosulfonate; and (ii) has a molecular weight of less than 100,000, wherein a test composition consisting essentially of: the cement; the water; the organic acid; and the polymeric mixture, and in the same proportions as in the cement composition has a thickening time of at least 5 hours at a temperature of 300° F. (148.9° C.) and a pressure of 10,000 psi (68.9 MPa).
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: May 13, 2014
    Assignee: Halliburton Energy Services, Inc
    Inventors: Trissa Joseph, Pankaj Phani Chakraborty, Mohand Melbouci
  • Patent number: 8708045
    Abstract: Treatment of a subterranean formation can be conducted with viscosified treatment fluids that comprise a multifunctional boronic acid crosslinking agent. Methods for treating a subterranean formation can comprise providing a treatment fluid that comprises an aqueous base fluid, a gelling agent, and a multifunctional boronic acid crosslinking agent that comprises a copolymer comprising at least one boronic acid monomer unit and at least one water-soluble monomer unit; and introducing the treatment fluid into a subterranean formation.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: April 29, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James William Ogle, Jeremy Holtsclaw, Rajesh Kumar Saini
  • Patent number: 8691735
    Abstract: Fracturing fluid compositions and methods of fracturing subterranean formations using polyboronic compounds as crosslinking agents are provided. The compositions and methods of the present invention allow for lower polymer loadings because achieving higher fracturing fluid viscosities can be achieved using less polymer than in traditional crosslinked systems.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Hong Sun, Qi Qu, Frances De Benedictis, Jerry Edwin Pardue
  • Publication number: 20140073538
    Abstract: Fluid loss materials including carboxymethylcellulose and zirconium-based crosslinkers may be employed as fluid loss materials in methods of treating subterranean formations. One method includes providing a treatment fluid including carboxymethylcellulose (CMC) and a crosslinker including zirconium, wherein the carboxymethylcellulose has a degree of substitution in a range of from about 0.5 to about 2.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Rajesh Kumar Saini, Feng Liang
  • Publication number: 20140060832
    Abstract: The invention provides for modified proppants, comprising a proppant particle and a hydrogel coating, wherein the hydrogel coating localizes on the surface of the proppant particle to produce the modified proppant, methods of manufacturing such proppants and methods of use.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 6, 2014
    Applicant: Soane Energy, LLC
    Inventor: Soane Energy, LLC
  • Publication number: 20140038858
    Abstract: An enhanced oil recovery formulation composition containing a sacrificial agent and a surfactant dispersed in a fluid is provided. The sacrificial agent reduces the amount of surfactant required to enhance oil recovery from a petroleum-bearing formation. The sacrificial agent is selected from the group consisting of a compound comprising a single carboxylic acid, a single carboxylic acid derivative, or a single carboxylate salt, or a compound lacking a carboxylic acid group, a carboxylate group, a sulfonic acid group, or a sulfonate group that is a pheol, a sulphonamide, or a thiol, or a compound having a molecular weight of 1000 or less that comprises one or more hydroxyl groups.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 6, 2014
    Inventors: Jeffrey George SOUTHWICK, Marten Marten BUIJSE, Diederik Willem VAN BATENBURG, Carolus Hendricus Theodorus VAN RIJN
  • Publication number: 20140034323
    Abstract: Disclosed are treating fluid compositions for use in subterranean workover and hydrocarbon recovery operations, as well as methods of treating subterranean formations penetrated by a wellbore utilizing the treating fluid. The treating fluid compositions contain a first, aqueous liquid, and a crosslinkable organic polymer that is at least partly soluble in the liquid. The treating fluid further contains a borate crosslinking agent solution containing a primary, un-refined borate and a secondary, refined borate, the borate solution being present as a crosslinking agent upon addition to the first fluid admixture so as to crosslink the organic polymer and increase the viscosity and/or accelerate the crosslink time of the treating fluid.
    Type: Application
    Filed: July 9, 2013
    Publication date: February 6, 2014
    Applicant: Texas United Chemical Company, LLC
    Inventors: James W. Dobson, JR., Kim O. Tresco
  • Publication number: 20140014348
    Abstract: The invention provides for modified proppants, comprising a proppant particle and a hydrogel coating, wherein the hydrogel coating localizes on the surface of the proppant particle to produce the modified proppant, methods of manufacturing such proppants and methods of use.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 16, 2014
    Applicant: SELF-SUSPENDING PROPPANT LLC
    Inventors: Robert P. Mahoney, David S. Soane, Marie K. Hering, Kevin K. Kincaid, Rosa Casado Portilla, Philip Wuthridge
  • Publication number: 20140000891
    Abstract: The invention provides for modified proppants, comprising a proppant particle and a hydrogel coating, wherein the hydrogel coating localizes on the surface of the proppant particle to produce the modified proppant, methods of manufacturing such proppants and methods of use.
    Type: Application
    Filed: June 20, 2013
    Publication date: January 2, 2014
    Applicant: SELF-SUSPENDING PROPPANT LLC
    Inventors: Robert P. Mahoney, David S. Soane, Marie K. Hering, Kevin K. Kincaid, Rosa Casado Portilla, Philip Wuthridge
  • Publication number: 20130306323
    Abstract: An aqueous composition for removing scale deposits, especially on subsea equipment and a method of using the same is described. The aqueous composition comprises (a) a potassium phosphate compound; and (b) acetic acid. The composition is capable of dissolving away into seawater and poses little or no risk to the environment.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Inventor: Ian D. Smith
  • Publication number: 20130233545
    Abstract: The present invention provides modified proppants, and methods for their manufacture. In embodiments, the modified proppant comprises a proppant particle and a hydrogel coating, wherein the hydrogel coating is applied to a surface of the proppant particle and localizes on the surface to produce the modified proppant. In embodiments, formulations are disclosed comprising the modified particles, and methods are disclosed for using the formulations.
    Type: Application
    Filed: August 30, 2012
    Publication date: September 12, 2013
    Inventors: Robert P. Mahoney, David S. Soane, Marie K. Herring, Kevin P. Kincaid
  • Publication number: 20130228335
    Abstract: Treating fluid compositions for use in hydrocarbon recovery operations from subterranean formations are described, as well as methods for their preparation and use. In particular, treating fluid compositions are described which comprise a liquid, a crosslinkable organic polymer material that is at least partially soluble in the liquid, a crosslinking agent that is capable of increasing the viscosity of the treating fluid by crosslinking the organic polymer material in the liquid, and a crosslinking modifier additive which can delay or accelerate the crosslinking of the treating fluid composition. Such compositions may be used in a variety of hydrocarbon recovery operations including fracturing operations, drilling operations, gravel packing operations, water control operations, and the like.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 5, 2013
    Applicant: TEXAS UNITED CHEMICAL COMPANY, LLC
    Inventors: James W. Dobson, Shauna L. Hayden, Kimberly A. Pierce
  • Publication number: 20130180720
    Abstract: Provided is a method and composition for the in-situ generation of synthetic sweet spots in tight-gas formations. The composition can include nitrogen generating compounds, which upon activation, react to generate heat and nitrogen gas.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 18, 2013
    Applicant: Saudi Arabian Oil Company
    Inventor: Saudi Arabian Oil Company
  • Publication number: 20130150268
    Abstract: A fracking fluid hydration unit is provided that has a plurality of hydration tank sections wherein shear is added to the hydrated fluid flow via a recirculation hydrated fluid jetting system.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: ADVANCED STIMULATION TECHNOLOGY, INC.
    Inventor: DON OLDHAM
  • Publication number: 20130146312
    Abstract: A downhole sealant includes a composition that includes a polymer; an absorbent material; a primary crosslink network including primary bonds between chains of the polymer; and a secondary crosslink network which is transient. A method of regulating the swell rate of the downhole sealant includes disposing a downhole sealant comprising a polymer and an absorbent material in a borehole; maintaining a primary crosslink network of the polymer; and decomposing a secondary crosslink network of the absorbent material in response to a condition to regulate the swell rate of the downhole sealant.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: David P. Gerrard, James E. Goodson, John C. Welch, Anil K. Sadana
  • Publication number: 20130130948
    Abstract: A method for breaking the viscosity of an aqueous fluid gelled with a water soluble polymer or a VES is disclosed. The method includes providing an aqueous fluid. The method also includes adding to the aqueous fluid, in any order: a water soluble polymer in an amount sufficient to form a gelled aqueous fluid having a viscosity, a water soluble oxidizing agent configured to generate free radicals and a plurality of metallic particles to produce a mixture comprising dispersed metallic particles dispersed within the gelled aqueous fluid, the metallic particles configured to dissolve in the gelled aqueous fluid and provide a reducing agent to accelerate the generation of free radicals. The method further includes dissolving the metallic particles in the gelled aqueous fluid to provide a source of at least one transition metal ion in an amount effective accelerate the generation of free radicals and reduce the viscosity.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: James B. Crews
  • Publication number: 20130126169
    Abstract: Provided is a method and composition for the in-situ generation of synthetic sweet spots in tight-gas formations. The composition can include nitrogen generating compounds, which upon activation, react to generate heat and nitrogen gas. The method of using the composition includes injecting the composition into a tight-gas formation such that upon activation, heat and nitrogen gas are generated. Upon the generation of nitrogen gas and heat within the formation, microfractures are produced within the formation and the hydrostatic pressure within the reservoir is reduced to less than the reservoir fluid pressure, such that the rate of production of hydrocarbons from the formation is increased.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 23, 2013
    Applicant: Saudi Arabian Oil Company
    Inventor: Saudi Arabian Oil Company
  • Patent number: 8408301
    Abstract: A method comprises providing a treatment fluid comprising a gelling agent, an aqueous base fluid, a buffer composition comprising a plurality of salts, and a crosslinking agent; and contacting a subterranean formation with the treatment fluid. The aqueous base fluid is preferably seawater and the buffer composition includes one or more salts present in the treatment fluid from about 1 to about 1000 pounds per gallon of treatment fluid.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 2, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Lord, Ivan Suleiman, John M. Terracina, Rajendra A. Kalgaonkar
  • Patent number: 8377855
    Abstract: Methods and compositions for breaking treatment fluids utilized in the stimulation of a subterranean formation.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: February 19, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Keith A. Frost, Bradley L. Todd, Richard W. Pauls, Ian Robb
  • Publication number: 20130020082
    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: Application
    Filed: September 28, 2012
    Publication date: January 24, 2013
    Inventor: Charles A. Lumsden
  • Publication number: 20120270760
    Abstract: Fracturing fluid compositions and methods of fracturing subterranean formations using polyboronic compounds as crosslinking agents are provided. The compositions and methods of the present invention allow for lower polymer loadings because achieving higher fracturing fluid viscosities can be achieved using less polymer than in traditional crosslinked systems.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 25, 2012
    Inventors: Hong Sun, Qi Qu, Frances De Benedictis, Jerry Edwin Pardue
  • Publication number: 20120252707
    Abstract: The current application discloses a method of treating a portion of a subterranean formation comprises providing a treatment fluid comprising a carrier fluid, a non-hydrolyzed polyacrylamide or a nonhydrolyzed non ionic copolymer of acrylamide, and a delaying agent; and treating the subterranean formation.
    Type: Application
    Filed: March 5, 2012
    Publication date: October 4, 2012
    Inventors: Leiming Li, Lijun Lin
  • Publication number: 20120247774
    Abstract: A method of treating a portion of a subterranean formation comprises providing a treatment fluid comprising a carrier fluid, a viscosifying agent, a breaker, and a breaker aid wherein the breaker aid slowly releases a catalyst, wherein the viscosifying agent and the breaker in the carrier fluid have an initial viscosity and the catalyst and the breaker cooperate to decrease the viscosity of the treatment fluid below half of the initial viscosity after at least 30 minutes; and treating the subterranean formation.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Inventors: LEIMING LI, LIJUN LIN
  • Publication number: 20120245060
    Abstract: A method of forming a wellbore fluid, the method including introducing a hydratable polymer and introducing a crosslinker comprised of at least a silica material, the crosslinker having a dimension of from about 5 nm to about 100 nm.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 27, 2012
    Inventors: Li Jiang, Michael D. Parris, Richard D. Hutchins, Javier Sanchez Reyes, Christina D. Martin
  • Patent number: 8258085
    Abstract: The present invention relates to compositions and use of fluidized polymer suspensions containing allyloxy linkage and its functional derivatives, and water soluble polymers for use in oil field applications as fluid additives for drilling and cementing processes.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 4, 2012
    Assignee: Hercules Incorporated
    Inventors: Mohand Melbouci, Teng-Shau Young
  • Publication number: 20120220503
    Abstract: The concentrate solution for the crosslinking of polymers comprises water, polyol, a viscosifying agent, a first borate ion in solution, and a crosslinking agent able to release a second borate ion, wherein the second borate ion is not in solution.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Inventors: Javier Sanchez Reyes, Michael D. Parris
  • Patent number: 8207094
    Abstract: This invention relates to fluid compositions used in treating a subterranean formation. In particular, the invention is aqueous wellbore treatment compositions which are foams containing a viscosifying agent, a foam extender, a gas component, and a surfactant, as well as methods of forming such fluids, and uses thereof. The viscosifying agent may be a hydratable polymer, viscoelastic surfactant, or heteropolysaccharide. The foam extender may be a material such as a polyoxyalkyleneamines, ethylenepolyamines, tertiary polyamines, bicarbonate, carbonate, phosphate, or sesquicarbonate.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: June 26, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Richard D. Hutchins, Ann M. W. Hoefer, Stanley B. McConnell, Alejandro Pena
  • Patent number: 8183183
    Abstract: A method for treating a subterranean formation is made of steps of providing a composition comprising a carrier fluid, a polymer viscosifying agent, carbon dioxide and a formate salt or formic acid; injecting into a wellbore, the composition; contacting the composition with the subterranean formation, wherein the temperature is above 100 degrees Celsius at this contact; and allowing the composition to treat the subterranean formation.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 22, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Leiming Li, Lijun Lin, Curtis L. Boney, Michael D. Parris, Kevin W. England
  • Patent number: 8153563
    Abstract: Methods and compositions that include a method of cementing comprising providing a cement composition comprising water, a hydraulic cement, and an additive comprising at least one additive selected from the group consisting of a stevia retarder and inulin; placing the cement composition in a subterranean formation; and permitting the cement composition to set in the formation.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: April 10, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Ronnie G. Morgan, William J. Caveny, Rickey L. Morgan
  • Patent number: 8138124
    Abstract: A drilling fluid includes a base fluid and a circulation loss reducing additive package having a polysaccharide, a cellulose derivative and a pH controlling component.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 20, 2012
    Assignee: Intevep, S.A.
    Inventors: Sarkis Kakadjian, Jacques Reinaldo Gabay, Gerardo Alonso Sanchez