Organic Component Contains Nitrogen Attached Directly Or Indirectly To Carbon By Nonionic Bonding Patents (Class 507/236)
  • Patent number: 10047271
    Abstract: The invention concerns bifunctional compositions usable in the field of extraction of hydrocarbons, oil and/or gas, said compositions being homogeneous, clear and stable and comprising at least one anti-mineral-deposit additive, at least one corrosion inhibitor, and at least one agent for compatibilizing between the anti-mineral-deposit additive and the corrosion inhibitor.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: August 14, 2018
    Assignee: Arkema France
    Inventor: Tong Eak Pou
  • Patent number: 10030187
    Abstract: Polymer-based drilling fluids may be used as an alternative to drilling fluids containing bentonite or other clay materials, although filter cake formation can often be inadequate when using polymer-based drilling fluids. As a result, drilling methods employing polymer-based drilling fluids may sometimes experience unacceptable fluid loss performance within a borehole. Drilling methods with enhanced fluid loss performance may comprise: providing a drilling fluid comprising a carrier fluid, a viscosity-enhancing polymer, and a plurality of non-biodegradable particulates, the non-biodegradable particulates comprising at least silica particulates; drilling a borehole in the presence of the drilling fluid; and forming a filter cake within the borehole, the filter cake comprising the non-biodegradable particulates.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: July 24, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Preston Andrew May
  • Publication number: 20150107839
    Abstract: Spacer fluids that are stable at temperatures up to at least 300° C. comprise water, polystyrene sulfonate and a mixture of particulate materials. The particulate materials may be chosen such that the mixture has at least a trimodal particle-size distribution. The fluids may further comprise inorganic clays, mutual solvents and surfactants.
    Type: Application
    Filed: June 19, 2013
    Publication date: April 23, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Michel Michaux, Jean-Philippe Caritey, Laurent Gabilly
  • Patent number: 8969262
    Abstract: The present invention includes the use of anhydride compositions, including alkyl and aryl anhydrides, for use as a demulsifier in resolving emulsions of water and oil. In particular, the anhydride composition can be used alone or in a blend with other demulsifiers. Suitable anhydrides suitable for the present invention include acetic and propionic, with acetic anhydride being preferred. The anhydride composition can be added directly to crude oil or other compositions to be resolved. As such, the demulsifier composition includes an anhydride, such as acetic anhydride, alone or in combination with other demulsifiers. The anhydride can be used in an amount ranging between trace and 100% by weight of the demulsifier composition.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: March 3, 2015
    Assignee: Nalco Company
    Inventors: Duncan E. Williams, Richard Mgla
  • Patent number: 8950493
    Abstract: Methods and systems are disclosed for well completion and/or production, where an aggregating, agglomerating or conglomerating composition is injected into a producible formation, zone or interval thereof to alter an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 10, 2015
    Assignee: Weatherford Technology Holding LLC
    Inventors: Ronald van Petegem, Sarkis R. Kakadjian, Frank Zamora
  • Patent number: 8946130
    Abstract: Methods are disclosed for improved sand control, fines control, load recovery and well productivity, where the compositions comprise reaction products of an amine and a phosphate-containing compound.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: February 3, 2015
    Assignee: Clearwater International LLC
    Inventors: Frank Zamora, Sarkis R. Kakadjian, Erin Fitzgerald, Tina Garza
  • Patent number: 8901048
    Abstract: A method for drilling through a producing zone in a subterranean formation or for completing a wellbore in a subterranean formation, using a drill-in and completion fluid comprising a blend of a phosphate brine and water.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: December 2, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Natalia Collins, Carl Thaemlitz
  • Publication number: 20140336089
    Abstract: This invention relates to a process for inhibiting scaling in a subterranean oil or gas producing formation, comprising adding to the formation a composition comprising a metal chelant, a scale inhibitor and divalent metal cations, wherein the stability constant of the metal chelant—metal cation chelate at ambient temperature is equal to or higher than the stability constant of the chelate formed from the metal cations and the scale inhibitor, and wherein the solubility of the chelate formed from the metal cations and the scale inhibitor decreases with increasing temperature.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Applicant: Clariant Finance (BVI) Limited
    Inventors: Steve HEATH, Malcolm TODD
  • Patent number: 8871693
    Abstract: A gelling agent for a hydrocarbon fracturing fluid is disclosed, comprising the general formula of: in which X is an OR1, NR1R2, or SR1 group, R1 is an organic group having 2-24 carbon atoms, and R2 is an organic group or a hydrogen. Y is an NR3R4 or SR3 group, R3 is an organic group having 2-24 carbon atoms, and R4 is an organic group or a hydrogen. A method of making a gelling agent for a hydrocarbon fracturing fluid is also disclosed. Phosphorus oxyhalide is reacted with a chemical reagent to produce substantially only diester phosphorus oxyhalide, the chemical reagent comprising at least one of an organic alcohol having 2-24 carbon atoms, an organic amine with an organic group having 2-24 carbon atoms, and an organic sulfide having 2-24 carbon atoms. The diester phosphorus oxyhalide is then hydrolyzed to produce diester phosphoric acid.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 28, 2014
    Assignee: GasFrac Energy Services Inc.
    Inventors: Shaun T. Mesher, Chris Collett
  • Publication number: 20140303048
    Abstract: Compositions comprise an amine component, an aminephosphate component and may also include a solvent component. The compositions are adapted to coat solid materials, substrates and/or surfaces of producing of reservoirs and formations and methods for making and using same, where the coating agents modify surface properties of the solid materials, substrates and/or surfaces of producing formations decreasing residual oil saturation.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 9, 2014
    Inventors: Sarkis R. Kakadjian, Frank Zamora, Raynard Veldman, Ronald van Petegen
  • Publication number: 20140262247
    Abstract: A composition and method for hydraulically fracturing an oil or gas well to improve the production rates and ultimate recovery using a porous ceramic proppant infused with a chemical treatment agent is provided. The chemical treatment agent may be a tracer material that provides diagnostic information about the production performance of a hydraulic fracture stimulation by the use of distinguishable both water soluble and hydrocarbon soluble tracers. The tracer can be a biological marker, such as DNA. The porous ceramic proppant can be coated with a polymer which provides for controlled release of the chemical treatment agent into a fracture or well bore area over a period of time.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: CARBO Ceramics Inc.
    Inventors: Robert Duenckel, Mark Conner, Chad Cannan, Daniel Cady, Joshua Leasure, Thu Lieng, Todd Roper, Peter A. Read
  • Publication number: 20140128294
    Abstract: A corrosion control system is disclosed including an anionic oxygen inhibitor, a cationic acid inhibitor or dispersant, and a noxious species inhibitor or scavenger for use in a fluid in contact with a metallic surface at low temperature, moderate temperature and especially at high temperature. A drilling fluid, a completion fluid, a production fluid and a geothermal fluid including an effective amount of the corrosion control system is also disclosed as well as methods for making and using same.
    Type: Application
    Filed: October 21, 2013
    Publication date: May 8, 2014
    Applicant: WEATHERFORD/LAMB, INC.
    Inventors: Larry W. Gatlin, Khalid Ali Shah
  • Patent number: 8653009
    Abstract: The invention relates to the use of compounds comprising three hydrophobic groups as additives to a stream of crude oil containing carboxylic acids, in particular naphthenic acids, and salt water, to prevent the formation of calcium carboxylates when the fluid is exposed to shear forces. Preferably, the compounds are added to a crude oil/water stream containing organic acids Ca2+ ions at a point between the well and the pressure reduction valve in the crude oil receiving station.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: February 18, 2014
    Assignee: AKZO Nobel N.V.
    Inventors: Martin Hellsten, Ingemar Uneback
  • Publication number: 20130303412
    Abstract: Disclosed herein is a well treatment method comprising the steps of injecting into a well a fluid loss control agent comprising a chelating agent, a viscosity increasing agent, and a plurality of at least partially insoluble bridging solid particles dispersed therein, wherein the chelating agent is effective to at least partially solubilize at least a portion of the bridging solid particles over a solubilizing period of time for thereafter substantially dissolving the bridging solid particles, wherein the solubilizing period of time is controlled by the concentration of the viscosity increasing agent, the concentration of the chelating agent, the composition of the metal salt, the pH of the fluid loss control agent, or a combination thereof. A fluid loss control agent is also disclosed.
    Type: Application
    Filed: September 30, 2011
    Publication date: November 14, 2013
    Applicant: M-I L.L.C.
    Inventors: Mark Luyster, Scotten Blair
  • Patent number: 8507413
    Abstract: Clay is stabilized in methods for drilling of wells and other formation treatment for hydrocarbon production by the addition to the drilling or other fluid including a choline compound together with an formation control additive.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: August 13, 2013
    Assignee: Clearwater International, LLC
    Inventor: Thomas P. Wilson, Jr.
  • Patent number: 8505626
    Abstract: Novel aminoacid alkylphosphonic acid compounds are disclosed. These compounds can be used in multiple applications, in particular in a scale inhibitor functionality in aqueous systems, including in marine oil recovery.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: August 13, 2013
    Assignee: Dequest AG
    Inventors: Patrick Notte, Albert Devaux
  • Publication number: 20130168096
    Abstract: The composition includes a pH adjusting agent and a precipitation-control agent. The pH adjusting agent provides the hydrolysis of degradable fibers at a temperature of no more than 50° C. and comprises substances that may provide and maintain a high pH environment. The precipitation-control agent allows maximally delaying or completely suppressing the formation and deposition of precipitate during the hydrolysis of the degradable components in the treatment fluid A method of treating an subterranean formations penetrated by a wellbore with the additives described herein comprises providing a treatment fluid comprising a base mixture and a degradable substance, with additionally added degradable materials, and injecting the prepared treatment fluid into the subterranean formation.
    Type: Application
    Filed: December 17, 2012
    Publication date: July 4, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Schlumberger Technology Corporation
  • Publication number: 20130025870
    Abstract: A well servicing fluid is disclosed. The well servicing fluid is formulated by combining ingredients comprising: an aqueous based fluid comprising sulfate ions at a concentration greater than 50 mg/l; a chelating agent; and an acid in an amount sufficient to result in the well servicing fluid having a pH of 4.5 or less. A method of servicing a well is also disclosed.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Inventors: Sandra L. Berry, Joel L. Boles, Kay E. Cawiezel, Kern L. Smith
  • Publication number: 20130023449
    Abstract: This invention relates to a process for inhibiting scaling in a subterranean oil or gas producing formation, comprising adding to the formation a composition comprising a metal chelant, a scale inhibitor and divalent metal cations, wherein the stability constant of the metal chelant—metal cation chelate at ambient temperature is equal to or higher than the stability constant of the chelate formed from the metal cations and the scale inhibitor, and wherein the solubility of the chelate formed from the metal cations and the scale inhibitor decreases with increasing temperature.
    Type: Application
    Filed: March 24, 2011
    Publication date: January 24, 2013
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Steve Heath, Malcolm Todd
  • Patent number: 8349772
    Abstract: A method of secondary oil recovery is disclosed wherein from 0.1 to 100 000 ppm of a medium soluble aminoalkylene phosphonic acid amine salt are used wherein both the aminoalkylene phosphonic acid moiety and the amine moiety are selected from a specifically defined class of compounds. The substantially medium soluble aminoalkylene amine phosphonates exhibit a significantly improved compatibility with the recovery medium and thus can propagate fairly freely into the medium and consequently cover a largely extended rock surface before being subject to precipitation in the form of a medium insoluble scale inhibitor. The amine compound is represented by combinations of structurally different compounds.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: January 8, 2013
    Assignee: Dequest AG
    Inventors: Patrick Notté, Albert Devaux
  • Publication number: 20120316090
    Abstract: A water-in-oil emulsion composition and method of production is disclosed. The composition may comprise a monomer phase, an organic phase, at least one initiator, and an inverting phase. The monomer phase may further comprise at least one monomer, water, ammonium chloride, sodium 2-acrylamido-2-methyl-1-propanesulfonate, tetrasodium ethylenediaminetetraacetate, and at least one water soluble ethylenically unsaturated monomer. The organic phase may further comprise at least one hydrophobic solvent, lecithin, and a polyoxyethylene derivative of a sorbitan ester. The at least one monomer may be selected from the group consisting of an acrylic monomer, an acrylamide monomer, and combinations thereof.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Inventors: Kin-Tai Chang, Kirk E. Wells, Jesse V. Mello
  • Patent number: 8298996
    Abstract: A low toxicity composition and method of reducing the swelling of clay in well comprising circulating in the well a water-based fluid comprising a functionally effective concentration of the additive formed from the following reaction of a tertiary amine of the following general formula: wherein R1 and R2 are alkyl or hydroxyalkyl groups with one to three carbon atoms or combinations thereof, and R3 is a hydroxyalkyl group with one to three carbon atoms, with an alkylating agent of the following general formula: R-A wherein R is an alkyl radical with one to three carbon atoms, and A is an organic or inorganic anion selected from the group consisting of sulfate, phosphate, carbonate, and combinations thereof.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 30, 2012
    Assignee: M-I L.L.C.
    Inventor: Arvind D. Patel
  • Publication number: 20120252705
    Abstract: Non-settable spacer fluids for use in subterranean operations comprising: a base liquid; vitrified shale; a chelating agent; a clay weighting agent; and a viscosifying agent. The chelating agent includes one or more of nitrilotriacetic acid, ethylene diamine tetracetic acid (EDTA), ethylene glycol tetraacetic acid (EGTA), tartaric acid, a polycarboxylic acid, a lignosulphonate, hydroxyethylidene diphoshponic acid (HEDP), diethylene triamine penta (methylene phosphonic) acid (DETMP), amino-tri-methylene phosphonic acid (ATMP), ethylene diamine tetra (methylene phosphonic) acid (EDTMP), or salts thereof. The clay weighting agent is present in the range of about 0.01% to about 85% by weight of the spacer fluid. The viscosifying agent is present in the range of about 1% to about 10% by weight of the spacer fluid.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Girish Dinkar Sarap, Christopher L. Gordon, Manoj Sivanandon, Trissa Joseph
  • Patent number: 8236734
    Abstract: The present invention relates to a method of using threshold scale inhibitors of the formula: wherein n is 2 or 3 and M is hydrogen or an alkali metal cation, for preventing calcium carbonate, iron carbonate, and calcium sulfate scale formation in oilwell brines containing dissolved iron.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: August 7, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Dong Shen, Randall J. Perkins, Dwayne D. Schielke, David H. Shcolnik
  • Patent number: 8207095
    Abstract: Scale inhibiting particulates formed from a mixture of fly ash and a phosphonic acid curing agent; wherein the fly ash is cured into a solid material by the contact with the phosphonic acid curing agent. The mixture may also contain a multivalent ion and the particulates may be coated with a coating material in an amount from about 0.1% to about 40% coating material by weight of the scale inhibiting particulate to delay the release of the scale inhibitor.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: June 26, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Thomas D. Welton
  • Publication number: 20120122741
    Abstract: Scale inhibiting particulates formed from a mixture of fly ash and a phosphonic acid curing agent; wherein the fly ash is cured into a solid material by the contact with the phosphonic acid curing agent. The mixture may also contain a multivalent ion and the particulates may be coated with a coating material in an amount from about 0.1% to about 40% coating material by weight of the scale inhibiting particulate to delay the release of the scale inhibitor.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 17, 2012
    Inventor: Thomas D. Welton
  • Patent number: 8158561
    Abstract: The present invention relates to a method for inhibiting scale and corrosion in aqueous systems, for example, under high temperature and pressure conditions such as temperatures up to 250° C. and/or pressures up to 10000 psi (i.e., about 68.9 MPa). The method involves providing polymer compositions comprising 1% to 100% by weight of a phosphorus-containing amide monomer to such aqueous systems, which arise, for example, in connection with oilfield operations and some water treatment applications.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: April 17, 2012
    Assignee: Rohm and Haas Company
    Inventors: Eric Greyson, Joseph Manna, Somil Chandrakant Mehta
  • Patent number: 8138129
    Abstract: Scale-inhibiting particulates formed from a mixture of fly ash and a phosphonic acid curing agent wherein the fly ash is cured into a solid material by the contact with the phosphonic acid curing agent. Methods of using scale-inhibiting particulates to inhibit scale formation in a subterranean formation.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: March 20, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Thomas D. Welton
  • Patent number: 8097567
    Abstract: Clay is stabilized in the drilling of wells and other formation treatment for hydrocarbon production by the addition to the drilling or other fluid including a choline compound together with an formation control additive.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: January 17, 2012
    Assignee: Clearwater International, LLC
    Inventor: Thomas P Wilson, Jr.
  • Publication number: 20120000661
    Abstract: A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (?)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 5, 2012
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin
  • Publication number: 20110303415
    Abstract: This invention relates to an aqueous-swellable and degradable diverting system and the use of the system in treating a subterranean formation penetrated by a wellbore. The diverting system comprises a carrier fluid and a partially dehydrated or anhydrous borate source material that does not swell or does not swell substantially when placed in contact with the carrier fluid. The carrier fluid is capable of carrying and placing the borate source material into a stimulation network substantially distanced from a wellbore. The carrier fluid may be a non-aqueous fluid, or when the average size of the borate source material is sufficient large, the carrier fluid may also be an aqueous fluid. Exposure of the diverting composition to sufficient amount of aqueous fluid swells the borate source material, bridges a desired portion of the stimulation network and then dissolves at least a portion of the diverting composition.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 15, 2011
    Inventors: Bradley L. Todd, Stanley J. Heath, Jeff T. Fleming
  • Patent number: 8003575
    Abstract: An aqueous composition for treating hydrocarbon wells contains (a) a scale inhibitor and (b) a viscoelastic surfactant, and further contains from 0 to less than 1% by weight of acid selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, citric acid, maleic acid, hydrofluoric acid, and mixtures thereof.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: August 23, 2011
    Assignee: Rhodia Operations
    Inventors: Floryan De Campo, Allwyn Colaco, Bruno Langlois, Chris Jones, Gary Woodward
  • Publication number: 20110143971
    Abstract: A gelling agent for a hydrocarbon fracturing fluid is disclosed, comprising the general formula of: in which X is an OR1, NR1R2, or SR1 group, R1 is an organic group having 2-24 carbon atoms, and R2 is an organic group or a hydrogen. Y is an NR3R4 or SR3 group, R3 is an organic group having 2-24 carbon atoms, and R4 is an organic group or a hydrogen. A method of making a gelling agent for a hydrocarbon fracturing fluid is also disclosed. Phosphorus oxyhalide is reacted with a chemical reagent to produce substantially only diester phosphorus oxyhalide, the chemical reagent comprising at least one of an organic alcohol having 2-24 carbon atoms, an organic amine with an organic group having 2-24 carbon atoms, and an organic sulfide having 2-24 carbon atoms. The diester phosphorus oxyhalide is then hydrolyzed to produce diester phosphoric acid.
    Type: Application
    Filed: August 26, 2009
    Publication date: June 16, 2011
    Applicant: GASFRAC ENERGY SERVICES INC.
    Inventors: Shaun T. Mesher, Chris Collett
  • Patent number: 7956017
    Abstract: A method for treating solid materials is disclosed, where the treating compositions coats surfaces or portions of surfaces of the solid materials changing an aggregation or agglomeration propensity of the materials. Treated solid materials are also disclosed. The methods and treated materials are ideally suited for oil field applications.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: June 7, 2011
    Assignee: Clearwater International, LLC
    Inventors: Larry W. Gatlin, Frank Zamora, Jim Venditto, Sarkis Kakadjian Ranka
  • Publication number: 20110130312
    Abstract: A method of secondary oil recovery is disclosed wherein from 0.1 to 100 000 ppm of a medium soluble aminoalkylene phosphonic acid amine salt are used wherein both the aminoalkylene phosphonic acid moiety and the amine moiety are selected from a specifically defined class of compounds. The substantially medium soluble aminoalkylene amine phosphonates exhibit a significantly improved compatibility with the recovery medium and thus can propagate fairly freely into the medium and consequently cover a largely extended rock surface before being subject to precipitation in the form of a medium insoluble scale inhibitor. The amine compound is represented by combinations of structurally different compounds.
    Type: Application
    Filed: January 7, 2009
    Publication date: June 2, 2011
    Applicant: DEQUEST AG
    Inventors: Patrick Notté, Albert Devaux
  • Patent number: 7939473
    Abstract: A low toxicity composition and method of reducing the swelling of clay in well comprising circulating in the well a water-based fluid comprising a functionally effective concentration of the additive formed from the following reaction of a tertiary amine of the following general formula: wherein R1 and R2 are alkyl or hydroxyalkyl groups with one to three carbon atoms or combinations thereof, and R3 is a hydroxyalkyl group with one to three carbon atoms, with an alkylating agent of the following general formula: R-A wherein R is an alkyl radical with one to three carbon atoms, and A is an organic or inorganic anion selected from the group consisting of sulfate, phosphate, carbonate, and combinations thereof.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: May 10, 2011
    Assignee: M-I L.L.C.
    Inventor: Arvind D. Patel
  • Patent number: 7923419
    Abstract: Unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli is inhibited by introduction into the annuli a thermal insulating packer fluid or a riser fluid containing a zwitterionic surfactant, an alcohol and a brine. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus. The invention has particular applicability with high density brines.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: April 12, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Qi Qu, Xiaolan Wang
  • Patent number: 7915204
    Abstract: An aqueous composition for treating hydrocarbon wells contains (a) a scale inhibitor and (b) a viscoelastic surfactant, and further contains from 0 to less than 1% by weight of acid selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, citric acid, maleic acid, hydrofluoric acid, and mixtures thereof.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: March 29, 2011
    Assignee: Rhodia Operations
    Inventors: Floryan De Campo, Allwyn Colaco, Bruno Langlois, Chris Jones, Gary Woodward
  • Publication number: 20110028358
    Abstract: Improved methods of placing and/or diverting treatment fluids in subterranean formations are provided. In one embodiment, the methods comprise introducing a treatment fluid into a subterranean formation penetrated by a well bore, wherein the treatment fluid comprises: a base fluid, and a plurality of solid particulates comprising at least one selected from the group consisting of: a scale inhibitor, a chelating agent, and a combination thereof, wherein the solid particulates are substantially insoluble in the base fluid; and allowing at least a portion of the solid particulates to form a barrier or at partially divert a subsequent fluid.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Inventors: Thomas D. Welton, Bradley L. Todd
  • Publication number: 20110005756
    Abstract: Compositions and methods for their use are disclosed, where the compositions comprise an amine component, an amine/phosphate ester component and optionally a solvent component. The compositions are adapted to coat solid materials, substrates and/or surfaces of producing of reservoirs and formations and methods for making and using same, where the coating agents modify surface properties of the solid materials, substrates and/or surfaces of producing formations decreasing residual oil saturation.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 13, 2011
    Applicant: CLEARWATER INTERNATIONAL, LLC
    Inventors: Sarkis R. Kakadjian, Frank Zamora, Ray Veldman, Ron van Petegen
  • Patent number: 7795187
    Abstract: A method for plugging a permeable zone or leak in a subterranean formation comprises introducing into the formation a cross-linkable organic polymer and a cross-linking composition which comprises a zirconium triethanolamine complex, a tetra(hydroxyalkyl)ethylenediamine, water and optionally, a polyol. The method can be used for cross-linking organic polymers over a wide range of pH. By varying the composition and optionally adding a delay agent, the method provides flexibility in rate of cross-linking.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: September 14, 2010
    Inventor: Donald Edward Putzig
  • Publication number: 20100197530
    Abstract: The present disclosure is directed to a method comprising introducing into a well bore a fluid comprising a zwitterionic polymer. The polymer is prepared by inverse emulsion polymerization of at least one monomer Ab comprising a betaine group and optionally one or more nonionic monomers Ba. The well bore is chosen from a natural gas well bore and an oil well bore.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 5, 2010
    Inventors: D.V. SATYANARAYANA GUPTA, Madhukar Chetty, Paul Carman
  • Patent number: 7741249
    Abstract: Disclosed is a composition comprising a chemical formulation useful for creating geosynthetic composites in-situ that includes a melamine-formaldehyde resin in a non-aqueous drilling fluid.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: June 22, 2010
    Assignee: Shell Oil Company
    Inventor: Kenneth Michael Cowan
  • Publication number: 20100137170
    Abstract: Stabilized sulfide control compositions for oil well and related uses are provided which include a first ingredient selected from the group consisting of tetra (hydroxymethyl) phosphine (THP) or a salt thereof (THPS) and an amino phosophono chelant. The compositions are stabilized against cold-weather crystal formation and deposition by the presence of a morpholine-based stabilizing agent. Preferred compositions include the sulfate salt of THP, diethylenetriamine penta (methylenephosophonic acid) sodium salt, and morpholine.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 3, 2010
    Applicant: JACAM CHEMICALS, LLC
    Inventors: Beth Ann Wolf, Gene H. Zaid
  • Publication number: 20090275488
    Abstract: Methods are disclosed for improved sand control, fines control, load recovery and well productivity, where the compositions comprise reaction products of an amine and a phosphate-containing compound.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 5, 2009
    Applicant: CLEARWATER INTERNATIONAL, LLC
    Inventors: Frank Zamora, Sarkis R. Kakadjian, Erin Fitzgerald, Tina Garza
  • Publication number: 20080251252
    Abstract: Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol and an effective amount of a phosphorus-containing compound sufficient to increase the viscosity of coacervate gels up to 3 times as compared to the gels in the absence of the phosphorus-containing compound. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.
    Type: Application
    Filed: June 8, 2007
    Publication date: October 16, 2008
    Inventor: Kevin M. Schwartz
  • Publication number: 20080004189
    Abstract: Disclosed herein are methods and compositions for using effervescent materials to deliver biocides to fluids. Generally, the effervescent material is a solid that includes an acid and a base that react in aqueous medium to produce a gas, such as carbon dioxide. The effervescent material can be tablets, powder, flakes, and the like. The effervescent material includes one or more biocides, which are dispersed in the fluid by effervescent action that occurs when the material is added to the fluid. The methods and compositions are particularly suited for treating oil field fluids such as fracturing fluids.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: WEATHERFORD/LAMB, INC.
    Inventors: KEVIN SMITH, LEONARD J. PERSINSKI, MARK WANNER
  • Patent number: 7273103
    Abstract: Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecithin and a solvent; and contacting the well fluid with the defoaming agent so that the amount of foam present in the well fluid is reduced.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: September 25, 2007
    Assignee: HalliburtonCEnergy Services, Inc.
    Inventors: Michael J. Szymaski, J. Michael Wilson, Samuel J. Lewis, Bryan K. Waugh
  • Patent number: 7273832
    Abstract: Fluids, such as completion fluids, containing at least one alkali metal tungstate and optionally at least one chelating agent are described. Methods of removing a filter cake from a well bore surface, which may include one or more alkaline earth metal sulfates, is also described, wherein the method includes contacting the filter cake with the completion fluid of the present invention. A drilling fluid or mud is also described wherein the drilling fluid contains at least one alkali metal tungstate. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The various fluids of the present invention can contain other conventional ingredients and optionally at least one alkali metal formate. The present invention permits the fluids to be essentially solids free due to the use of the alkali metal tungstate.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: September 25, 2007
    Assignee: Cabot Corporation
    Inventors: William J. Benton, Neal F. Magri
  • Patent number: 7220709
    Abstract: A process for stimulating a formation is disclosed wherein a diverting fluid is used to divert an acid treatment package from a high permeability or damaged portion of a formation to a low permeability or undamaged portion of a formation. The fluid preferably forms vesicles.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: May 22, 2007
    Assignee: BJ Services Company
    Inventors: Qi Qu, Scott McCarthy, Daniel Patrick Vollmer