Plural Heteroatoms In The Ring Patents (Class 507/243)
  • Patent number: 10669673
    Abstract: Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 2, 2020
    Assignee: GPCP IP Holdings LLC
    Inventors: Yu Chen, Kevin M. Holtman, Brian S. Hammes, Jeffrey J. Boettcher
  • Patent number: 10329672
    Abstract: The present invention provides corrosion inhibiting compositions that incorporate at least one bis-imidazoline compound. In the practice of the present invention, a tetramine admixture enriched with respect to linear tetramine is used to prepare the bis-imidazoline compound. “Enriched” means at least 70 weight percent and up to 100% of the tetramine species included in the admixture includes a linear tetramine such as L-TETA.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 25, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Ritesh Gulabani, Stephen W. King, Prashant Tatake
  • Patent number: 9296940
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine derivative of the formula: wherein R14 is a C1-C24 straight chain or branched alkyl group; or a C6-C24 aryl or arylalkyl group; R15 is a C1-C6 alkyl or a C6-C30 aryl or alkylaryl group; and X is chlorine, bromine or iodine. The dithiazine may be isolated from a whole spent fluid (WSF) formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing dithiazine or dithiazine derivative and a corrosion inhibiting formulation may be used to inhibit corrosion in the well.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: March 29, 2016
    Assignee: Baker Hughes Incorporated
    Inventor: Grahame Nigel Taylor
  • Patent number: 9255475
    Abstract: A methodology for reservoir understanding that performs investigation of asphaltene instability as a function of location in a reservoir of interest. In the preferred embodiment, results derived as part of the investigation of asphaltene instability are used as a workflow decision point for selectively performing additional analysis of reservoir fluids. The additional analysis of reservoir fluids can verify the presence of asphaltene flocculation onset conditions and/or determine the presence and location of phase-separated bitumen in the reservoir of interest.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 9, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Youxiang Zuo, Oliver C. Mullins, Chengil Dong, Denise Freed, Andrew Pomerantz, Eric Lehne, Dingan Zhang
  • Patent number: 9085725
    Abstract: A method of cleaning a wellbore prior to the production of oil or gas, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake is disclosed. The method may include circulating a breaker fluid into the wellbore, where the breaker fluid includes a non-oleaginous internal phase and an oleaginous external phase, where the non-oleaginous phase includes a water soluble polar organic solvent, a hydrolysable ester of a carboxylic acid, and a weighting agent, and the oleaginous external phase includes an oleaginous fluid and an emulsifier, and where the hydrolysable ester is selected so that upon hydrolysis an organic acid is released and the invert emulsion of the filter cake breaks.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: July 21, 2015
    Assignee: M-I L.L.C.
    Inventors: Charles Svoboda, Raymond David Ravitz, Mark R. Luyster
  • Publication number: 20150111799
    Abstract: The present invention relates to the use of a chemical composition to modify the physical properties (viscosity and interfacial tension) of heavy and extra-heavy crude oils, to increase their mobility. The chemical composition comprises or consists of a combination of systems based on ionic and non-ionic liquids, which may be pure or modified, mixed in an aqueous or organic medium as a dispersing agent, depending on the nature of the crude to be treated, together with a surfactant. The composition is mixed with the crude oil at a temperature between 5 and 100° C., at pressures from 1 atm (14.7 psi) up to about 680.2 atm (10,000 psi). The composition can be mixed with heavy crude oils, at the point of extraction from the well in the field, during the transport of crude oil in pipelines, or in the well discharge pipelines.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 23, 2015
    Inventors: Alma Delia MIRANDA OLVERA, Jose Manuel DOMINGUEZ ESQUIVEL, Ricardo GARCIA CHAVEZ, Miguel Angel VAZQUEZ GUEVARA
  • Publication number: 20150101240
    Abstract: Base compounds including 1,3-oxazinan-6-one derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde, and their application as corrosion inhibitors with multifunctional properties serving as inhibitory/dispersant of asphaltene in production processes, transportation, refining and storage of crude oil and derivatives. The corrosion inhibitor with inhibitory/dispersant of asphaltenes properties comprises an active substance base of 1,3-oxaninan-6-ones and hydrocarbon solvents such as benzene, toluene, mixed xylenes, o-xylene, m-xylene and p-xylene, diesel, kerosene, jet fuel, alcohols, aliphatic branched and unbranched alcohols containing from 3 to 10 carbon atoms, such as isopropanol, butanol and pentanol, and mixtures of hydrocarbon solvents with aliphatic branched or unbranched liquid fuels. In addition, a process for obtaining 1,3-oxazinan-6-ones derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde is described.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 16, 2015
    Inventors: Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Hiram Isaac Beltran Conde, Eduardo Buenrostro Gonzalez
  • Publication number: 20140303049
    Abstract: The present invention relates to processes for consolidating an underground formation with a consolidating mineral. The consolidating material is a carbonate and is produced from an alkaline treatment fluid containing, in at least some embodiments, environmentally friendly and inexpensive components. In one embodiment, the process can be applied to consolidation of an underground formation during or following drilling. The present invention also provides a treatment fluid suitable for use in such processes.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 9, 2014
    Applicant: Cleansorb Limited
    Inventor: Duncan Holdsworth
  • Publication number: 20140303045
    Abstract: Systems and methods for controlling microbial growth and/or activity in a gas field fluid or oil field fluid are provided, comprising: a) adding a first biocide component to the gas field fluid or oil field fluid in an amount effective to control microbial growth and/or activity; and b) after a delay, adding a second biocide component to the gas field fluid or oil field fluid.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: Kemira Oyj
    Inventors: Scott Campbell, Angela Marie Johnson
  • Publication number: 20140213490
    Abstract: A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid comprising a coupling agent, a hardenable resin and a hardening agent into the wellbore wherein the coupling agent comprises a multihydroxy phenyl, a dihydroxy phenyl, a trihydroxy phenyl, ascorbic acid, a hydroxymethylnaphthol, an oxidation product thereof, a derivative thereof, or combinations thereof. A wellbore servicing fluid comprising a coupling agent, a hardenable resin, a hardening agent and a proppant wherein the coupling agent comprises a multihydroxy phenyl, a dihydroxy phenyl, a trihydroxy phenyl, ascorbic acid, a hydroxymethylphenol, a hydroxymethylnaphthol, an oxidation product thereof, a derivative thereof, or combinations thereof.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: James William OGLE, Philip D. NGUYEN, Feng LIANG
  • Publication number: 20140190700
    Abstract: Stabilizers that include hydrophobically modified amine-containing polymers may be utilized as compositions or in methods for controlling particulate migration in a subterranean formation. For example, a method may include providing a treatment fluid that comprises a base fluid and a hydrophobically modified amine-containing polymer (HMAP), the HMAP comprising a plurality of hydrophobic modifications on an amine-containing polymer; introducing the treatment fluid into a wellbore penetrating a subterranean formation, the subterranean formation comprising a plurality of particulates; and allowing the HMAP to coat at least some of the particulates.
    Type: Application
    Filed: February 14, 2013
    Publication date: July 10, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Tingji Tang, Feng Liang, Loan Vo, Philip D. Nguyen
  • Patent number: 8772206
    Abstract: The invention discloses a method comprising providing a fluid comprising a viscosifying agent in an aqueous medium; contacting the fluid with a halogenisocyanuric acid or halogenisocyanurate component; whereby the viscosity of the fluid with the halogenisocyanuric acid or halogenisocyanurate component is reduced compared to the viscosity of the fluid alone; and introducing the fluid into a well. The halogenisocyanuric acid component can be mono chloroisocyanuric acid, dichloroisocyanuric acid or trichloroisocyanuric acid. The halogenisocyanurate component can be an alkali metal monochloroisocyanurate, alkali metal dichloroisocyanurate or alkali metal trichloroisocyanurate.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: July 8, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Andrey Mirakyan, Syed A. Ali, Curtis L. Boney, Kevin W. England, Michael D. Parris, Kristel A. Blow
  • Publication number: 20140179568
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine derivative of the formula: wherein R14 is a C1-C24 straight chain or branched alkyl group; or a C6-C24 aryl or arylalkyl group; R15 is a C1-C6 alkyl or a C6-C30 aryl or alkylaryl group; and X is chlorine, bromine or iodine. The dithiazine may be isolated from a whole spent fluid (WSF) formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing dithiazine or dithiazine derivative and a corrosion inhibiting formulation may be used to inhibit corrosion in the well.
    Type: Application
    Filed: December 24, 2012
    Publication date: June 26, 2014
    Inventor: Grahame Nigel Taylor
  • Publication number: 20140142004
    Abstract: A downhole fluid comprises a base fluid, for example a hydrocarbon base fluid, a gelling agent, and a gel enhancer. The gelling agent has an aromatic core of one or more aromatic rings, the gelling agent having two or more amide branches distributed about the aromatic core, each of the two or more amide branches having one or more organic groups. An example gelling agent is a pyromellitamide gelling agent. A method of making a downhole fluid, the method comprising: combining a base fluid, a gelling agent, and a gel enhancer. A downhole fluid comprising a base fluid, a gelling agent, a breaker, and a gel enhancer. Downhole fluids with such gels and a breaker are also disclosed.
    Type: Application
    Filed: September 24, 2013
    Publication date: May 22, 2014
    Inventors: Shaun T. Mesher, Olivia Steward, Daniel Firth, Robert Moran
  • Patent number: 8716199
    Abstract: Corrosion inhibitor compounds including a corrosion inhibitor and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 6, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Publication number: 20140087978
    Abstract: A method of converting an inactive biocide into an active biocide comprises: contacting the inactive biocide with an activating agent, wherein the activating agent is capable of chemically reacting with the inactive biocide; and causing or allowing a chemical reaction to take place between the inactive biocide and the activating agent, wherein the chemical reaction produces the active biocide. The methods can also include deactivating the active biocide via a chemical reaction between the active biocide and a deactivating agent.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC
    Inventor: Jay P. DEVILLE
  • Publication number: 20140057817
    Abstract: A method of reducing the amount of sulfhydryl compounds from sour hydrocarbon fluids is described. In the method, an aldehyde-releasing compound, which is high temperature stable and is highly water-soluble, is introduced to a hydrocarbon fluid stream as a scavenger for sulfhydryl compounds. The aldehyde-releasing compound is allowed to mix with the hydrocarbon fluid stream and the aldehyde-releasing compound is allowed to react with the sulfhydryl compounds present in the hydrocarbon fluid stream, thereby reducing the presence sulfhydryl compound in the hydrocarbon fluid stream.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 27, 2014
    Applicant: Lonza, Inc.
    Inventor: Kevin Edward JANAK
  • Publication number: 20130310285
    Abstract: A treatment fluid made of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor. A method of combining a mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor, in a fluid mixture. A method of contacting a low-temperature formation with a fluid mixture of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Inventors: Andrey Fedorov, Bernhard Lungwitz, Olesya Levanyuk, Philippe Enkababian
  • Publication number: 20130292112
    Abstract: A particle mixture useful for estimating the locations of rock fractures in rock includes a mixture of particles of proppant with particles of an energetic material having a size, shape, and density that are about the same as for the particles of proppant. Particles of proppant and of an energetic material having the same desired sizes and shapes of the proppant may be obtained by collecting those particles that pass through a sieve of a chosen size but not through a sieve of the next smaller size. The location of rock fractures that contain proppant can be estimated by sending the particle mixture into fractured rock, allowing the energetic particles to release their energy, and afterward estimating the locations in the rock where the energy was released from the particles, thereby providing the locations of fractures in the rock that contain proppant.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 7, 2013
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventor: Lloyd Lester Davis
  • Publication number: 20130284427
    Abstract: Degeneration of shale caused by oxygen in aqueous drilling, fracturing and completion fluids is minimized by introducing imidazolines modified so that they will be attracted efficiently to pyrites in the shale, thereby forming a protective coating on the pyrites. Inhibiting oxidation of the pyrites sharply reduces physical degradation of the shale, and the generation of undesirable oxides, in the presence of drilling, fracturing and completion fluids carrying oxygen. The imidazoline is an ionic salt of a monocarboxylic acid.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 31, 2013
    Applicant: Smart Chemical Services, LP
    Inventors: Kevin W. Smith, Jeffrey Snider
  • Patent number: 8551925
    Abstract: Disclosed are imidazoline-based foamers and corrosion inhibitors for treatment of oil and gas wells for enhanced production. The invention also includes methods of foaming a fluid by introducing the disclosed foamers to oil and gas wells.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: October 8, 2013
    Assignee: Nalco Company
    Inventors: Duy T. Nguyen, G. Richard Meyer
  • Publication number: 20130190214
    Abstract: Methods of treating a gas field fluid or oil field fluid is provided, the method comprising: a) adding glutaraldehyde to the gas field fluid or oil field fluid in an amount effective to reduce or inhibit microbial activity; and b) after a delay, adding 3,5-dimethyl-1,3,5-thiadiazinane-2-thione to the gas field fluid or oil field fluid.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 25, 2013
    Inventors: Marko Kolari, Sherrill Gammon, Jaakko Simell
  • 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: 20130130950
    Abstract: Methods of treating a well, by providing a supramolecular polymer fluid comprising units connected via reversible hydrogen bonds to form a supramolecular polymer; by introducing the supramolecular polymer fluid in the well; and by treating the well with the supramolecular polymer fluid.
    Type: Application
    Filed: December 16, 2010
    Publication date: May 23, 2013
    Inventors: Yiyan Chen, Michaela Nagl
  • Publication number: 20130096036
    Abstract: Nanoemulsions have been discovered to be useful to the oil field. More particularly water-in-oil (W/O), oil-in-water (O/W) and other classes of nanoemulsions have found beneficial application in drilling, completion, well remediation and other oil and gas industry related operations. Additionally, nanoemulsions may reduce friction pressure losses, as well as reduce subsidence of solid weight material during oil and gas operations. New preparation methods for nanoemulsions have also been discovered.
    Type: Application
    Filed: December 5, 2012
    Publication date: April 18, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Lirio Quintero, David E. Clark, Alexander John McKellar
  • Patent number: 8399386
    Abstract: The present invention relates to a method for introducing a foaming composition including an imidazoline-based compound to a fluid. The foaming composition comprises at least one quaternized compound having an imidazoline moiety. An example of the quaternized compound is a quaternized imidazoline.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: March 19, 2013
    Assignee: Nalco Company
    Inventors: Duy T. Nguyen, G. Richard Meyer
  • Publication number: 20130035264
    Abstract: Degeneration of shale caused by oxygen in aqueous drilling, fracturing and completion fluids is minimized by introducing imidazolines modified so that they will be attracted efficiently to pyrites in the shale, thereby forming a protective coating on the pyrites. Inhibiting oxidation of the pyrites sharply reduces physical degradation of the shale in the presence of drilling, fracturing and completion fluids carrying oxygen. The imidazoline is an ionic salt or a beatine.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 7, 2013
    Inventors: Kevin W. Smith, Jeffrey Snider, Jimmy Poindexter
  • Publication number: 20130029883
    Abstract: A gas generating system for use in stimulation or in deliquification/dewatering includes a foam generating agent, a foam enhancing agent and a gas generating additive. The foam generating agent is absorbed or adsorbed on a first plurality of substrates and the foam boosting agent is absorbed or adsorbed on a second plurality of substrates. The gas generating additive preferably includes an acidic component contained within a releasing mechanism container and a carbonate or bicarbonate contained within a releasing mechanism container. The use of encapsulated substrate permits the staged and targeted delivery of treatment chemicals in fractures extending from the wellbore or in the wellbore itself.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: CESI CHEMICAL, INC.
    Inventors: Keith Dismuke, Richard Nelson Fox, Herbert Juppe, Phillip B. Kaufman, Glenn S. Penny, Bill Zhou
  • Patent number: 8354361
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine derivative of the formula: wherein R14 is a C1-C24 straight chain or branched alkyl group; or a C6-C24 aryl or arylalkyl group; R15 is a C1-C6 alkyl or a C6-C30 aryl or alkylaryl group; and X is chlorine, bromine or iodine. The dithiazine may be isolated from a whole spent fluid (WSF) formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing dithiazine or dithiazine derivative and a corrosion inhibiting formulation may be used to inhibit corrosion in the well.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: January 15, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Grahame Nigel Taylor
  • Publication number: 20120088700
    Abstract: An asphaltene and resin precipitation inhibiting solution formed of an asphaltene and resin precipitation inhibiting compound and a solvent miscible in a carbon dioxide liquid or supercritical fluid. The inhibiting compound includes a head region with an affinity for asphaltene and resin components of a hydrocarbon mixture that is greater than its affinity for water, carbon dioxide, and aliphatic components of the hydrocarbon mixture. The head region includes one or more unsaturated hydrocarbon groups or one or more nonionic dipolar groups. The inhibiting compound also includes a tail region with an affinity for carbon dioxide that is greater than its affinity for substantially all components of the hydrocarbon mixture and water. The tail region includes one or more nonionic quadrupolar groups. An effective amount of solution is added to a hydrocarbon mixture in an underground reservoir when employing a carbon dioxide fluid to flush the hydrocarbon mixture from the reservoir.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 12, 2012
    Applicant: CHAMPION TECHNOLOGIES, INC.
    Inventor: Paul R. Hart
  • Publication number: 20120041040
    Abstract: The present invention provides novel functionalized mixtures 4- and 5-vinyl substituted regioisomers of 1,2,3-triazoles via 1,3-dipolar cycloaddition. Functionalized alkyne moieties with a terminal alcoholic functionality are reacted with functionalized organic moieties with a terminal leaving group and an azide to provide an alcoholic functionalized mixture of 4- and 5-substituted regioisomers of 1,2,3-triazole moieties. The mixture may be converted to a wide variety of useful functionalized mixtures of 4- and 5-vinyl substituted regioisomers of 1,2,3-triazole moieties, which in turn can be converted to a wide variety of useful polymers The novel alcoholic functionalized mixtures of 4- and 5-substituted regioisomers can be separated by chromatography to provide the purified 4- and 5-alcoholic functionalized substituted 1,2,3-triazole moieties. The novel compounds of the invention can be employed in a wide variety of compositions (Formulae (I), (II)); wherein R1, R2, R3, and R4, are defined herein.
    Type: Application
    Filed: March 9, 2010
    Publication date: February 16, 2012
    Applicant: ISP Investments Inc.
    Inventors: Osama M. Musa, Brian Marr
  • Patent number: 8105988
    Abstract: One or more methods for inhibiting corrosion in a fluid that contain a composition with a specified generic formula are disclosed. The fluid can be contained in an oil or gas pipeline or refinery.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: January 31, 2012
    Assignee: Nalco Company
    Inventors: Erick J. Acosta, Jeffery Caleb Clark
  • Patent number: 8105987
    Abstract: One or more methods for inhibiting corrosion in an aqueous medium that contain a composition with a specified generic formula are disclosed. The aqueous medium can be contained in an oil or gas pipeline or refinery.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: January 31, 2012
    Assignee: Nalco Company
    Inventors: Erick J. Acosta, Jeffery Caleb Clark
  • Publication number: 20120010110
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine derivative of the formula: wherein R14 is a C1-C24 straight chain or branched alkyl group; or a C6-C24 aryl or arylalkyl group; R15 is a C1-C6 alkyl or a C6-C30 aryl or alkylaryl group; and X is chlorine, bromine or iodine. The dithiazine may be isolated from a whole spent fluid (WSF) formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing dithiazine or dithiazine derivative and a corrosion inhibiting formulation may be used to inhibit corrosion in the well.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Inventor: Grahame Nigel Taylor
  • Publication number: 20110287984
    Abstract: The invention discloses a method comprising providing a fluid comprising a viscosifying agent in an aqueous medium; contacting the fluid with a halogenisocyanuric acid or halogenisocyanurate component; whereby the viscosity of the fluid with the halogenisocyanuric acid or halogenisocyanurate component is reduced compared to the viscosity of the fluid alone; and introducing the fluid into a well. The halogenisocyanuric acid component can be mono chloroisocyanuric acid, dichloroisocyanuric acid or trichloroisocyanuric acid. The halogenisocyanurate component can be an alkali metal monochloroisocyanurate, alkali metal dichloroisocyanurate or alkali metal trichloroisocyanurate.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Inventors: Andrey Mirakyan, Syed A. Ali, Curtis L. Boney, Kevin W. England, Michael D. Parris, Kristel A. Blow
  • Publication number: 20110287983
    Abstract: The invention discloses a method comprising providing a fluid comprising a viscosifying agent in an aqueous medium; contacting the fluid with a N-halogenated derivative of hydantoin; whereby the viscosity of the fluid with the N-halogenated derivative of hydantoin is reduced compared to the viscosity of the fluid alone; and introducing the fluid into a well. The N-halogenated derivative of hydantoin can be dichlorodimethylhydantoin (DCDMH), bromochlorodimethylhydantoin (BCDMH), or dibromodimethylhydantoin (DBDMH). The N-halogenated derivative of hydantoin can be 1,3-Dichloro-5,5-dimethylhydantoin or 1,3-Dibromo-5,5-dimethylhydantoin.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Inventors: Syed A. Ali, Andrey Mirakyan, Curtis L. Boney, Kevin W. England, Michael D. Parris, Kristel A. Blow
  • Publication number: 20110269650
    Abstract: Base compounds including 1,3-oxazinan-6-one derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde, and their application as corrosion inhibitors with multifunctional properties serving as inhibitory/dispersant of asphaltene in production processes, transportation, refining and storage of crude oil and derivatives. The corrosion inhibitor with inhibitory/dispersant of asphaltenes properties comprises an active substance base of 1,3-oxaninan-6-ones and hydrocarbon solvents such as benzene, toluene, mixed xylenes, o-xylene, m-xylene and p -xylene, diesel, kerosene, jet fuel, alcohols, aliphatic branched and unbranched alcohols containing from 3 to 10 carbon atoms, such as isopropanol, butanol and pentanol, and mixtures of hydrocarbon solvents with aliphatic branched or unbranched liquid fuels. In addition, a process for obtaining 1,3-oxazinan-6-ones derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde is described.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 3, 2011
    Applicant: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Raúl Hernández Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Hiram Isaac Beltrán Conde, Eduardo Buenrostro González
  • Patent number: 8022017
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine of the formula: wherein R is selected from the group consisting of a C1 to C10 saturated or unsaturated hydrocarbyl group or a C1 to C10 ?-hydroxy saturated or unsaturated hydrocarbyl group. The dithiazine may be isolated from a whole spent fluid formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing the dithiazine may be introduced into the well. In addition, the dithiazine or whole spent fluid may be formulated with at least one component selected from alkyl, alkylaryl or arylamine quaternary salts; mono or polycyclic aromatic amine salts; imidazoline derivative or a quaternary salt thereof; a mono-, di- or trialkyl or alkylaryl phosphate ester; or a monomeric or oligomeric fatty acid.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 20, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Grahame Nigel Taylor
  • Patent number: 8022018
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine or dithiazine of the formula: wherein R is selected from the group consisting of a C1 to C12 saturated or unsaturated hydrocarbyl group or a C1 to C10 ?-hydroxy saturated or unsaturated hydrocarbyl group; R1 is selected from the group consisting of a C1-C24 straight chain or branched alkyl group or a C1-C24 arylalkyl; R2 is selected from the group consisting of X-R4-X, R4 being a C1-C6 alkyl group; and X is chlorine, bromine or iodine. The dithiazine may he isolated from a whole spent fluid formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing the dithiazine may be introduced into the well. The dithiazines of formulae (II) and (III) are quaternized derivatives of the dithiazine of formula (I).
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: September 20, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Grahame Nigel Taylor
  • Patent number: 8007689
    Abstract: A liquid composition comprising a high-capacity aqueous carrier in which (i) a metalloid compound selected from the group consisting of antimony and germanium compounds and (ii) morpholine or derivative thereof are dissolved in the presence of (iii) unsaturated alcohol and (iv) water-soluble organic acid having reducing capacity, wherein the total concentration of said four components is preferably not less than 5% relative to the total weight of the composition. The composition is useful as a corrosion inhibitor. Also provided is a process for preparing the composition.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: August 30, 2011
    Assignee: Bromine Compounds Ltd.
    Inventors: David Itzhak, Sharon Krumbein Rubin, Arieh Kampf, Vered Atiya Zuckerman, Mira Bergstein Freiberg
  • Patent number: 8006761
    Abstract: A wellbore fluid comprising a base fluid and a particulate bridging agent comprised of a sparingly water-soluble material selected from the group consisting of melamine (2,4,5-triamino-1,3,5-triazine), lithium carbonate, lithium phosphate (Li3PO4), and magnesium sulfite.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: August 30, 2011
    Assignee: BP Exploration Operating Company Limited
    Inventors: Simon Neil Duncum, Christopher Alan Sawdon
  • Publication number: 20110186299
    Abstract: The present invention relates to low-toxicity biodegradable compounds that inhibit metal corrosion, said compounds being salts obtained through the reaction of a carboxylic diacid with an imidazoline derivative. The invention also relates to the use of said corrosion-inhibiting compounds in all types of industries for drilling ore or fossil compounds, such as gas or oil.
    Type: Application
    Filed: September 17, 2009
    Publication date: August 4, 2011
    Inventors: Tong Eak Pou, Jean-Philippe Gillet, Christian Gancet
  • Patent number: 7989403
    Abstract: A method of inhibiting corrosion in a fluid is disclosed. The method comprises: adding to the fluid an effective corrosion inhibiting amount of a synergist, a synergist when H2S is present in the fluid, or no synergist when H2S is present in the fluid, and a composition comprising specified following formula and optionally salts thereof.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: August 2, 2011
    Assignee: Nalco Company
    Inventors: Erick J. Acosta, Peter A. Webber, Keith A. Monk
  • Publication number: 20110160099
    Abstract: A method for reducing the toxicity of an invert emulsion wellbore fluid is disclosed. The method comprises forming an invert emulsion wellbore fluid comprising an oleaginous continuous phase, an aqueous discontinuous phase, and an emulsifying fluid, wherein the emulsifying fluid comprises a nitrogen-containing emulsifying agent and an alkalinity agent, and wherein the invert emulsion wellbore fluid produces an LC50 (SSP) of at least 30,000 parts per million at 3000° F.
    Type: Application
    Filed: September 11, 2008
    Publication date: June 30, 2011
    Applicant: M-I L.L.C.
    Inventors: Arvind D. Patel, Maribella Irving
  • Publication number: 20110152137
    Abstract: Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine of the formula: wherein R is selected from the group consisting of a C1 to C10 saturated or unsaturated hydrocarbyl group or a C1 to C10 ?-hydroxy saturated or unsaturated hydrocarbyl group. The dithiazine may be isolated from a whole spent fluid formed by reaction of hydrogen sulfide and a triazine. Alternately, the whole spent fluid containing the dithiazine may be introduced into the well. In addition, the dithiazine or whole spent fluid may be formulated with at least one component selected from alkyl, alkylaryl or arylamine quaternary salts; mono or polycyclic aromatic amine salts; imidazoline derivative or a quaternary salt thereof; a mono-, di- or trialkyl or alkylaryl phosphate ester; or a monomeric or oligomeric fatty acid.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Inventor: Grahame Nigel Taylor
  • Patent number: 7960316
    Abstract: At least in aspect, the invention provides methods that include a method comprising: contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: June 14, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Patent number: 7943555
    Abstract: Wellbore treatment kits are provide that include a polymeric solution for placement in a wellbore that penetrates a subterranean formation and an activator for causing a polymer to precipitate out of the polymeric solution when it contacts the polymeric solution, wherein the resulting precipitate is capable of at least partially blocking a flow of a wellbore servicing fluid into the subterranean formation. The wellbore servicing fluid may be, for example, a drilling fluid, a cement composition, a workover fluid, or combinations thereof. The polymeric solution may comprise, for example, a poly vinyl pyrrolidone aqueous solution, and the activator may comprise, for example, a formate brine. When desirable, the precipitate may be easily and quickly removed from the subterranean formation by dissolving it in fresh water.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: May 17, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventors: Kenneth W. Oyler, Carl J. Thaemlitz
  • Publication number: 20110077174
    Abstract: At least in aspect, the invention provides methods that include a method comprising: contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Publication number: 20110071059
    Abstract: The present invention relates to a method for introducing a foaming composition including an imidazoline-based compound to a fluid. The foaming composition comprises at least one quaternized compound having an imidazoline moiety. An example of the quaternized compound is a quaternized imidazoline.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Inventors: Duy T. Nguyen, G. Richard Meyer
  • Patent number: 7854277
    Abstract: Wellbore fluid containing a base fluid and a particulate bridging agent comprised of melamine. A method is also described of forming a removable filter cake on the walls of a wellbore that penetrates a porous and permeable rock formation by placing in the wellbore a wellbore fluid containing a base fluid and melamine, and permitting the melamine to deposit from the wellbore fluid onto or into the walls of the wellbore to form the filter cake, whereby fluid loss to the formation through the removable filter cake is reduced.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: December 21, 2010
    Assignee: BP Exploration Operating Company Limited
    Inventors: Simon Neil Duncum, Christopher Alan Sawdon