Nitrogen Is Attached Directly Or Indirectly To The Acrylic Acid Monomer Or Derivative By Nonionic Bonding (e.g., Acrylamide, Acrylonitrile, Etc.) Patents (Class 507/225)
  • Patent number: 10655041
    Abstract: Methods of treating a subterranean formation penetrated by a well bore, by providing a treatment fluid comprising non-homogeneous particulates including a degradable material and a stabilizer; by introducing the treatment fluid into the well bore; and by creating a plug with the treatment fluid.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: May 19, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Zinaida Yurievna Usova, Shitong S. Zhu, Bruno Lecerf
  • Patent number: 10647908
    Abstract: Provided is a composition for preparing injection fluid in oil and gas recovery comprising an inverse emulsion of a water-soluble polymer A comprising acrylamide monomer units, and solid particles of a water-soluble polymer, wherein water-soluble polymer B is obtained by a polymerization step of at least acrylamide and 1 and 15 mol % of acrylamido tertiary butyl sulfonic acid (ATBS), and/or salts thereof, and a subsequent post treatment step of the resulting polymer. Also provided is a method of treating a portion of subterranean formation comprising providing the composition, preparing an injection fluid with at least the composition, introducing the injection fluid into portion of the subterranean formation. The composition is particularly useful to prepare fracturing fluid in fracturing operations.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 12, 2020
    Assignee: S.P.C.M. SA
    Inventor: Cédrick Favero
  • Patent number: 10640700
    Abstract: A fracturing fluid including a mixture of an aqueous copolymer composition including a copolymer, the copolymer having 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or a salt thereof, and a crosslinker. The crosslinker includes a metal, and the weight ratio of the metal to the copolymer is in a range of 0.01 to 0.08. Treating a subterranean formation includes introducing the fracturing fluid into a subterranean formation, and crosslinking the fracturing fluid in the subterranean formation to yield a crosslinked fracturing fluid. The crosslinked fracturing fluid has a viscosity of at least 500 cP for at least 80 minutes when the gel is subjected to a shear rate of 40 s?1 at a temperature in a range of 300° F. to 400° F.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 5, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Feng Liang, B. Raghava Reddy, Leiming Li, Ghaithan A. Al-Muntasheri
  • Patent number: 10138418
    Abstract: A hydraulic fracturing composition includes: a superabsorbent polymer in an expanded state and configured to break in response to a breaking condition; a plurality of proppant particles disposed in the superabsorbent polymer prior to release of the plurality of proppant particles from the superabsorbent polymer in response to breaking the superabsorbent polymer; and a fluid to expand the superabsorbent polymer into the expanded state. The hydraulic fracturing composition can be made by contacting a superabsorbent polymer with a fluid to expand the superabsorbent polymer into an expanded state; and disposing a plurality of proppant particles in the superabsorbent polymer to make the hydraulic fracturing composition.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: November 27, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Jia Zhou, Hong Sun, Qi Qu, Michael Guerin
  • Patent number: 10131731
    Abstract: The subject invention discloses curable polymeric N-halamine precursors which are useful for forming an antimicrobial surface coating on an object or article of manufacture. The present invention more specifically reveals a cross-linkable, water soluble polymer which is particularly useful for coating substrates and which can be activated to provide such substrates with antimicrobial and/or odor reducing characteristics, said cross-linkable polymer being comprised of amine, amide, or imide group containing repeat units and epoxide or methylol group containing repeat units, wherein the ratio of amine, amide or imide group containing repeat units to epoxide or methylol group containing repeat units is at least 2:1.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 20, 2018
    Assignee: OxiScience LLC
    Inventors: Zhengbing Cao, Xinbo Sun, Simon Johnston
  • Patent number: 9969923
    Abstract: Embodiments herein include methods comprising providing a sealant composition comprising an aqueous base fluid, a crosslinkable polymer composition, and a density segregation prevention agent, wherein the crosslinkable polymer composition comprises a crosslinkable organic polymer and a crosslinker; introducing a particulate density reducing agent into the sealant composition, wherein the particulate density reducing agent causes the sealant composition to adopt a reduced density as compared to the sealant composition without the particulate density reducing agent, thereby creating a reduced density sealant composition; introducing the reduced density sealant composition into a subterranean formation; and crosslinking the reduced density sealant composition into a gel to form a seal in the subterranean formation.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 15, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Larry S. Eoff, Christopher A. Lewis, Robert Maier
  • Patent number: 9469805
    Abstract: Composition based on anionic polymers or water-soluble amphoteric (co)polymers suitable for viscosifying the injection fluids for oil recovery, characterized in that, before dilution with the injection fluid, it further contains at least 3 stabilizing agents selected from the group comprising oxygen reducing agents, precipitating agents, free radical scavengers, complexing agents and sacrificial agents, the said stabilizing agent being suitable for preventing the chemical degradation of the polymer once the polymer is introduced into the injection fluid.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: October 18, 2016
    Assignee: S.P.C.M. SA
    Inventors: Cédrick Favero, Nicolas Gaillard, Bruno Giovannetti
  • Patent number: 9175207
    Abstract: Compositions and methods for oil recovery using a surfactant-less alkaline-polymer system in hard water or hard brine is described in the instant invention. The formulation further includes a chelating agent, an alkaline agent (which can be the same as the chelating agent), and a co-solvent. The formulations as disclosed herein are capable of forming a surfactant in-situ resulting in Winsor Type III micro-emulsions of low interfacial tension.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: November 3, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Upali P. Weerasooriya, Gary A. Pope
  • Patent number: 9090856
    Abstract: The primary washing power of washing and cleaning agents was to be improved, in particular with respect to oil- and/or fat-containing stains. This was achieved substantially by the incorporation of polymers that derive from N,N-dimethylacrylamide.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 28, 2015
    Assignees: Henkel AG & Co. KGaA, Fraunhofer Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Nicole Plath, Inga Kerstin Vockenroth, Eva-Maria Wikker, Benoit Luneau, Andre Laschewsky, Michael Pach, Erik Wischerhoff
  • Publication number: 20150148269
    Abstract: Design and preparation of a smart system, including a hydrophilic polymer nanoparticle as a core material and a hydrophilic-hydrophobic block copolymer as a coating nanolayer for use in a smart core-shell nanostructure flooding during enhanced oil recovery (EOR) process. The hydrophilic polymers are prepared by an inverse emulsion method. The central core of this nanostructure includes hydrophilic polymer. The nanolayer can be a surfmer. The binary properties of the shell and hydrophilic polymers increase the water viscosity in the water-oil interface and enhance oil recovery.
    Type: Application
    Filed: September 23, 2014
    Publication date: May 28, 2015
    Inventors: Yousef Tamsilian, Ahmad Ramazani S.A.
  • Publication number: 20150141301
    Abstract: Aqueous well treatment fluid compositions with biocidal activity are disclosed comprising a polymer for modifying fluid viscosity in the aqueous fluid, an organic monocarboxylic peracid being present in an anti-microbial amount of about 1 ppm to about 1000 ppm, and a controlled amount of hydrogen peroxide also being present. Peracetic acid is the preferred peracid. The viscosity-modifying polymer in the aqueous well treatment fluid composition may serve to reduce friction in the fluid or increase fluid viscosity. A method of using such compositions is also disclosed.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Applicant: PEROXYCHEM LLC
    Inventors: John M. ROVISON, JR., Shurong HUANG, Henry A. PFEFFER
  • Patent number: 9034805
    Abstract: Fluid treatment systems and compositions are provided including (a) at least one material including (1) at least one carboxylic acid functional group and (2) at least one sulfur-containing group selected from the group consisting of sulfonyl functional groups, sulfonate functional groups and mixtures thereof; and (b) at least one scale control agent. The fluid treatment systems and compositions can be used to treat aqueous systems, for example as fracturing fluids for treating aqueous compositions found in subterranean formations. Methods for inhibiting formation and/or precipitation of calcium salts in an aqueous composition using the fluid treatment systems or compositions also are provided.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: May 19, 2015
    Assignees: KROFF CHEMICAL COMPANY, NABORS COMPLETION & PRODUCTION SERVICES CO.
    Inventors: Paul Rey, Susan Rey, Michael John Seyman, David Grottenthaler, Matthew E. Blauch
  • Patent number: 9034804
    Abstract: Fluid treatment systems and compositions are provided including (a) at least one material including (1) at least one carboxylic acid functional group and (2) at least one sulfur-containing group selected from the group consisting of sulfonyl functional groups, sulfonate functional groups and mixtures thereof; and (b) at least one friction reducing agent selected from the group consisting of guar gums, polyacrylamides, hydratable cellulosic materials, viscoelastic surfactants, and mixtures thereof. The fluid treatment systems and compositions can be used to treat aqueous systems, for example as fracturing fluids for use in fracturing subterranean formations. Methods for inhibiting formation and/or precipitation of metal oxides in an aqueous composition using the fluid treatment systems or compositions also are provided.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: May 19, 2015
    Assignees: KROFF CHEMICAL COMPANY, NABORS COMPLETION & PRODUCTION SERVICES CO.
    Inventors: Paul Rey, Susan Rey, Michael John Seyman, Matthew E. Blauch
  • Patent number: 9034802
    Abstract: The invention provides an oilfield suspending friction reducer treatment composition fluid comprising from about 0.001 weight percent to about 0.5 weight percent of a drag reducing surfactant; at least one drag reducing enhancer selected from the group consisting of polymeric drag reduction enhancers, monomeric drag reduction enhancers, and mixtures thereof.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: May 19, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Alex Ahrenst, Bernhard Lungwitz, Christopher N. Fredd, Carlos Abad, Nihat Gurmen, Yiyan Chen, John Lassek, Paul Howard, William Troy Huey, Zakir Azmi, Donald Hodgson, III, Oscar Bustos
  • Publication number: 20150129216
    Abstract: A method of plugging an opening in a subterranean formation such as a fracture system is provided. A gel composition can be provided which includes an aqueous fluid, a cross-linkable polymer soluble in the aqueous fluid and a cross-linking agent. Inorganic fibers can be added to the gel composition. The gel composition can be injected into the opening in the subterranean formation. The gel composition can be cross-linked, and the opening can be plugged with the gel composition. In certain illustrative embodiments, the inorganic fibers can be mineral wool fibers.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: SUMIT BHADURI, TERRY MONROE, QI QU, FREEMAN HILL
  • Publication number: 20150114649
    Abstract: Methods comprising providing a sealant composition comprising an aqueous base fluid and a crosslinkable polymer composition, wherein the crosslinkable polymer composition comprises a crosslinkable organic polymer and a crosslinker; introducing an elastic gellable composition into the sealant composition, wherein the elastic gellable composition is an aqueous emulsion comprising an aqueous continuous phase and a dispersed phase comprising elastomeric polymers; introducing the sealant composition into a subterranean formation; and crosslinking the sealant composition into a gel to form a seal in the subterranean formation, thereby forming an elastic gelled sealant composition, wherein the elastic gellable composition reduces the brittleness of the elastic gelled sealant composition as compared to the sealant composition without the elastic gellable composition.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Applicant: Halliburton Energy Sevices, Inc.
    Inventors: Jose del Carmen Jimenez Osorio, Omar Davila Escamilla, Jonnathan Ricardo Tellez Abaunza, Carmen Josefina Ramirez
  • 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: 20150096751
    Abstract: A hydraulic fracturing composition includes: a superabsorbent polymer in an expanded state; a plurality of proppant particles disposed in the superabsorbent polymer; a well treatment agent, and a fluid to expand the superabsorbent polymer into the expanded state. A process for treating a well with well treatment agent includes disposing a hydraulic fracturing composition comprising the well treatment agent in a well. The well treatment agent can be a scale inhibitor, tracer, pH buffering agent, or a combination thereof.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Dong Shen, Leiming Li, Jia Zhou, Hong Sun
  • Patent number: 8993491
    Abstract: Compositions that swell on contact with water contain a non-swellable thermoplastic or thermoset polymer and a swellable inorganic compound. In particular, the compositions are suitable for use in subterranean wells such as those used in the oil and gas industry. The polymer may be polypropylene and the inorganic compound may be magnesium oxide.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: March 31, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Simon James, Bruno Drochon
  • Publication number: 20150075795
    Abstract: A well treatment fluid uses ingredients that include an aqueous base, a non-associative, ionic, synthetic polymer, and optionally, at least one metal crosslinker. The polymer contains a backbone and a functional group that hinders hydrolysis of the backbone. The functional group is distributed at intervals on the backbone. A well treatment method includes forming a well treatment fluid by combining ingredients including a non-associative, ionic, synthetic polymer and a first aqueous base. The first fluid exhibits a first viscosity greater than a viscosity of the first aqueous base. The method includes treating a well during a stage using the first fluid exhibiting the first viscosity. A second well treatment fluid is formed by combining ingredients including the polymer, a second aqueous base, and at least one crosslinker and by crosslinking the synthetic polymer. The method includes treating the well during another stage using the second fluid exhibiting the second viscosity.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 19, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Richard S. Wheeler
  • Publication number: 20150075798
    Abstract: Compositions and dispersions comprising hydrophobically modified polyacrylamide (HMPAM) or associative polymers and small particles useful in hydrocarbon recovery and enhanced oil recovery processes using the same. Non-limiting embodiments include those using metal oxide small particles, including fumed silica having primary particles in the nanoparticle size range.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 19, 2015
    Inventors: Yongchun TANG, Hongxin TANG, Panqing HE
  • 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
  • Publication number: 20150065672
    Abstract: Amphiphilic macromolecules having repeating structural units: structural units to adjust molecular weight and molecular weight distribution and charging property effects, high stereo-hindrance structural units, and amphiphilic structural units, and are suitable for fields such as oil field well drilling, well cementation, fracturing, oil gathering and transfer, sewage treatment, sludge treatment and papermaking, etc., and can be used as an oil-displacing agent for enhanced oil production, a heavy oil viscosity reducer, a fracturing fluid, a clay stabilizing agent, a sewage treatment agent, a papermaking retention and drainage aid or a reinforcing agent, etc.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 5, 2015
    Applicant: BEIJING JUNLUN RUNZHONG SCIENCE & TECHNOLOGY CO., LIMITED
    Inventors: Jinben Wang, Xuefeng Shi, Xiaohui Xu, Hui Yang, Yilin Wang, Haike Yan
  • 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: 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: 20150057196
    Abstract: Charged nanoparticles may be added to an aqueous downhole fluid having polymers therein where the charged nanoparticles may crosslink at least a portion of the polymers. The polymers may be or include, but are not limited to polyacrylamide, xanthan, guar, polyacrylic acid, poly 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS), polyethylene oxide, polypropylene oxide, or combinations thereof. The polymers may be homopolymers, copolymers, terpolymers, or combinations thereof. The charged nanoparticles may be or include, but are not limited to clay nanoparticles, modified nanoparticles, or combinations thereof. The aqueous downhole fluid may be or include, but is not limited to fracturing fluids, injection fluids, and combinations thereof for performing a fracturing operation, an injection operation, another enhanced oil recovery operation, and the like.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 26, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Saet B. Debord, Christabel Tanifum
  • Patent number: 8962536
    Abstract: The instant invention pertains to a composition which may be useful for enhancing oil recovery. The composition typically comprises the reaction mixture of at least (a) two or more compounds capable of generating at least about 20 kcal to about 150 kcal per mole when contacted; (b) one or more suitable surfactants or one or more suitable polymers or a mixture thereof; and (c) oil. The invention also pertains to a method for enhancing oil recovery wherein a suitable system is injected through a wellbore into a reservoir to enhance mobility of oil.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 24, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Gregory Winslow, Gabriel Prukop, Varadarajan Dwarakanath
  • 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
  • Patent number: 8946132
    Abstract: A controlled release composition comprising an aqueous sulfonate solution; an anionic surfactant; and a salt selected from aluminum nitrate nanohydrate, calcium chloride dehydrate, magnesium chloride hexahydrate, cobalt chloride hexahydrate, and other metal salts. Methods of delivering a controlled release of surfactants composition, the method comprising the steps of: delivering a solution into a reservoir, the solution comprising an aqueous sulfonate solution; an anionic surfactant; and a salt selected from aluminum nitrate nanohydrate, calcium chloride dehydrate, magnesium chloride hexahydrate, cobalt chloride hexahydrate, and other metal salts; and delivering water to the reservoir.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: February 3, 2015
    Assignee: Saudi Arabian Oil Company
    Inventors: Yun Chea Chang, Mazen Kanj
  • Patent number: 8940667
    Abstract: Fluid treatment systems and compositions are provided including (a) at least one material including (1) at least one carboxylic acid functional group and (2) at least one sulfur-containing group selected from the group consisting of sulfonyl functional groups, sulfonate functional groups and mixtures thereof; (b) at least one friction reducing agent selected from the group consisting of guar gums, polyacrylamides, hydratable cellulosic materials, viscoelastic surfactants, and mixtures thereof; and (c) at least one scale control agent. The fluid treatment systems and compositions can be used to treat aqueous systems, for example as fracturing fluids for treating aqueous compositions found in subterranean formations. Methods for inhibiting formation and/or precipitation of metal oxides in an aqueous composition using the fluid treatment systems or compositions also are provided.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: January 27, 2015
    Assignees: Kroff Chemical Company, Nabors Completion & Production Services Co.
    Inventors: Paul Rey, Susan Rey, Michael John Seyman, Matthew E. Blauch
  • Patent number: 8940670
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Publication number: 20150007989
    Abstract: Viscoselastic surfactant systems including at least one viscoelastic surfactant and at least one divalent metal compound, where the systems are useable for enhancing oil production in oil wells that coproduce high volumes of gas and/or water and for enhancing gas injection uniformity into injection formations and methods including treating producing or injecting formations with the systems to enhance oil production in treated producing zones or enhance injection efficiency in injection zones.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventors: Hyok Chong Tan, Billy J. Gray
  • Publication number: 20150000985
    Abstract: Crosslinked polymers that may be useful, for example, as viscosifiers or fluid-loss control additives for well treatment and servicing fluids are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a crosslinked polymer composition comprising at least one polymer that comprise at least one N-vinyl lactam monomeric unit, and at least one crosslinker selected from the group consisting of: an acrylamide-based crosslinker, an acrylate-based crosslinker, an ester-based crosslinker, an amide-based crosslinker, any derivative thereof, and any combination thereof; and introducing the treatment fluid into at least a portion of a wellbore penetrating at least a portion of a subterranean formation.
    Type: Application
    Filed: August 15, 2014
    Publication date: January 1, 2015
    Inventors: Hui Zhou, Jay Paul Deville, Chesnee Lae Davis
  • Publication number: 20150005206
    Abstract: A method comprising the steps of: (A) forming a fluid comprising a crosslinked polymer, wherein the crosslinked polymer comprises: (i) a first monomeric unit of one or more N-vinyl lactams; and (ii) a crosslinker selected from the group consisting of: divinyl ether, diallyl ether, vinyl or allyl ethers of polyglycols or polyols, divinylbenzene, 1,3-divinylimidazolidin-2-one, divinyltetrahydropyrimidin-2(1H)-one, dienes, allyl amines, N-vinyl-3(E)-ethylidene pyrrolidone, ethylidene bis(N-vinylpyrrolidone), and any combination of any of the foregoing; and (B) introducing the fluid into a portion of a well.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventors: Hui Zhou, Jay Paul Deville
  • 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: 20140374112
    Abstract: A fluid composition for cleanout of wellbores and pipe systems includes an effective amount of an amphiphilic chemical combined with an effective amount of a friction reducer in an aqueous solution of a base liquid. A remainder of the composition includes the base liquid.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Nathan R. Hutchings, Stewart A. Simpson
  • Patent number: 8916508
    Abstract: A method of preparing and using a drag-reducing composition in a well treatment operation includes the step of preparing the drag-reducing composition by mixing a polymer emulsion that includes a first surfactant and a first solvent, with a second surfactant and a second solvent. The method continues with the step of combining the drag-reducing composition with an aqueous treatment fluid. The method further includes the step of injecting the drag-reducing composition and aqueous treatment fluid into a subterranean formation, a pipeline or a gathering line.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: December 23, 2014
    Assignee: CESI Chemical, Inc.
    Inventors: Earl Parnell, Todd Sanner, Marlin Holtmyer, David Philpot, Andrei Zelenev, Gydeon Gilzow, Lakia Champagne, Thomas Sifferman
  • Publication number: 20140367111
    Abstract: Gellable treatment fluids containing an acrylamide copolymer and a suitable surfactant can be used in various subterranean operations where it is necessary for the treatment fluid to remain in a gelled state for extended periods of time at high formation temperatures. The surfactants are chosen to increase the relative permeability of the hydrocarbons in the subterranean formation by wettability alteration.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 18, 2014
    Inventors: Pubudu H. Gamage, William Walter Shumway, Jay Paul Deville
  • Publication number: 20140364346
    Abstract: A dilution system for a hydraulic fracturing fluid, the dilution system including a dilution manifold; a hydration unit configured to provide a source of liquid; a diluent line connecting the hydration unit to the dilution manifold. A diluent flow control valve on the diluent line. A hydration tank configured to hydrate a mixed additive. A gravity-driven viscous fluid line connecting an exit of the hydration tank to the dilution manifold. A viscous fluid flow meter on the viscous fluid line; and, a viscous fluid control valve on the viscous fluid line. Also included is a method of processing a fracturing fluid.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 11, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Jeremy L. Weinstein, Bryan Scott Lambert, Abel A. Gloria
  • 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
  • Publication number: 20140338907
    Abstract: A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid in the wellbore and/or subterranean formation, wherein the wellbore servicing fluid comprises a hydrophobically modified relative permeability modifier, an oxygenated alkylating agent, and an aqueous base fluid, and allowing the wellbore servicing fluid to modify the permeability of at least a portion of the wellbore and/or subterranean formation.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Inventors: B. Raghava REDDY, Larry S. Eoff, Christopher A. Lewis, Natalie L. Pascarella
  • Patent number: 8889603
    Abstract: The present disclosure is directed to compositions and methods that may be used for enhanced oil recovery, for modifying the permeability of subterranean formations and for increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations. The compositions may include, for example, expandable cross linked polymeric microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 5,000 microns and a cross linking agent content of from about 100 to about 200,000 ppm of hydrolytically labile silyl ester or silyl ether crosslinkers and from 0 to about 300 ppm of non-labile crosslinkers.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 18, 2014
    Assignee: Nalco Company
    Inventors: Pious V. Kurian, Kin-Tai Chang, Manian Ramesh, Olga E. Shmakova-Lindeman
  • 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: 20140329725
    Abstract: A composition in the form of an emulsion having: (i) a continuous oil phase comprising: (a) an oil; (b) an emulsifier; and (ii) an internal aqueous phase comprising: (a) water; (b) acid such that the aqueous phase has an initial pH of less than about 2; (c) a viscosity-increasing agent; and (d) a crosslinker, wherein the crosslinker is selected or controlled to crosslink the viscosity-increasing agent at a pH range somewhere in a range of about 1.5 to about 6.5 and that is at least higher than the initial pH of the aqueous phase. A method of acidizing a treatment zone of a subterranean formation in a well includes the steps of: (A) forming a treatment fluid comprising such a composition; and (B) introducing the treatment fluid into a well.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Chaitanya M. Karale
  • Publication number: 20140329726
    Abstract: Polymeric additives used with viscoelastic surfactants, fluids comprising such additives and viscoelastic surfactants, and associated methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid that comprises an aqueous base fluid, a viscoelastic surfactant, and an amphiphilic polymer, the amphiphilic polymer comprising a hydrophobic component, and a hydrophilic component comprising at least 15 monomer units; and introducing the treatment fluid into at least a portion of a subterranean formation.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Ryan G. Ezell, Ryan van Zanten
  • Publication number: 20140323361
    Abstract: The present invention relates to treatment of subterranean formations using compositions that experience an increase in viscosity as a result of the application of heat or shear. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a linear triblock copolymer and inorganic particles. The method can include at least one of shearing and heating the composition, to increase the viscosity thereof. The method can also include contacting the composition with a subterranean material downhole.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 30, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip Wayne Livanec, Matthew Lynn Miller
  • Publication number: 20140323366
    Abstract: A method of preparing and using a drag-reducing composition in a well treatment operation includes the step of preparing the drag-reducing composition by mixing a polymer emulsion that includes a first surfactant and a first solvent, with a second surfactant and a second solvent. The method continues with the step of combining the drag-reducing composition with an aqueous treatment fluid. The method further includes the step of injecting the drag-reducing composition and aqueous treatment fluid into a subterranean formation, a pipeline or a gathering line.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 30, 2014
    Inventors: Earl Parnell, Todd Sanner, Marlin Holtmyer, David Philpot, Andrei Zelenev, Gydeon Gilzow, Thomas Sifferman, Lakia Champagne
  • Patent number: 8871691
    Abstract: Methods of treating flowback water from a subterranean formation penetrated by a well bore are provided, comprising: (a) providing remediated flowback water having a ferrous iron (Fe+2) ion concentration of less than about 100 milligrams of ferrous iron ion per liter of flowback water, a barium ion (Ba+2) concentration of less than about 500 milligrams of barium ion per liter of flowback water, and a calcium ion (Ca+) concentration of at least about 1,000 milligrams of calcium ion per liter of remediated flowback water; and (b) treating the flowback water with: (i) at least one friction reducing agent; and (ii) at least one scale formation inhibiting agent and/or at least one iron precipitation control agent to provide treated flowback water which can be reused as fracturing fluid in a well drilling operation.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: October 28, 2014
    Assignee: Kroff Chemical Company
    Inventors: Paul Rey, Susan Rey, David Grottenthaler
  • Patent number: 8871692
    Abstract: The present invention refers to the use of anionic water-soluble polymers being partially or totally neutralized with an organic counter-ion for oil filed application, especially tertiary oil recovery steps.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: October 28, 2014
    Assignee: S.P.C.M. S.A.
    Inventors: Cédrick Favero, Nicolas Gaillard, Dennis Marroni
  • Patent number: 8865632
    Abstract: A drag-reducing additive includes 40-85% by weight of a polymer emulsion that includes a polymer, a first surfactant, and a first solvent; 10-35% by weight of a second surfactant with an HLB greater than 8; and 5-30% by weight of a second solvent. In a preferred embodiment, the second solvent includes a terpene. In another preferred embodiment, the polymer is a copolymer that includes acrylamide and acrylic acid.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 21, 2014
    Assignee: CESI Chemical, Inc.
    Inventors: Earl Parnell, Todd Sanner, Marlin Holtmyer, David Philpot, Andrei Zelenev, Gydeon Gilzow, Lakia Champagne, Thomas Sifferman