Composition For Plugging Pores In Wells Or Other Subterranean Formations; Consolidating Formations In Wells Or Cementing A Well Or Process Of Preparing Patents (Class 523/130)
  • Patent number: 10501372
    Abstract: A two-component mortar mass comprises a resin component (A), which contains at least one radically curable resin as a curable constituent, and a curing component (B), which contains a curing agent for the radically curable resin of the resin component (A). The radically curable resin can be obtained by reaction of an at least difunctional isocyanate with a hydroxy-functional silane and a hydroxy-functional, ethylenically unsaturated compound. The hydroxy-functional silane is the reaction product of a cyclic compound from the group of cyclic carbonates, lactones, and carbamates with a silane compound selected from the group of amino-functional, hydroxy-functional or mercapto-functional silanes.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 10, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventors: Anna Sharmak, Armin Pfeil, Beate Gnass, Memet-Emin Kumru, Jens Bunzen
  • Patent number: 10301533
    Abstract: Methods and compositions for treatment fluids that include carbonate and bicarbonate to control pH for use in subterranean treatments are provided. In one embodiment, the methods comprise providing a treatment fluid comprising an aqueous base fluid; a crosslinkable polymer; a crosslinking agent; and an amount of carbonate and an amount of bicarbonate, wherein the molar ratio of the amount of carbonate to the amount of bicarbonate is in the range of from about 1:2.3 to about 1:2.7; and introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: May 28, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Mahesh Vijaykumar Biyani, Loan Vo, Jeremy Holtsclaw, Raed Rahal, Monica Rajendra Dandawate
  • Patent number: 10059627
    Abstract: A multi-component composition is described that includes: A) a binder component (A) including at least one epoxy resin, B) a hardener component (B) including at least one amine compound as an amine hardener, and C) a solid component (C) including a hydraulic inorganic binder, wherein the hydraulic inorganic binder is a ternary binder composed of aluminous cement, calcium sulfate, and optionally Portland cement, wherein the solid component (C) includes 2 to 30 wt % aluminous cement, 1 to 16 wt % calcium sulfate, and 0 to 20 wt % Portland cement. The multi-component composition is suitable in particular as a self-leveling floor-leveling compound for a floor covering or as a mortar.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: August 28, 2018
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Fabio Würmli, Thomas Moser, Kurt Roth, Daniela Hesselbarth
  • Patent number: 9611419
    Abstract: A hydraulic well cementing composition is disclosed. The well cementing composition contains a hydraulic cement and a fluid loss additive. The fluid loss additive is the polymerization reaction product of a two vinylamide monomers, wherein the polymerization reaction is conducted in the presence of a molecular weight control agent. One of the vinylamide monomers includes a sulfonic acid function, the second vinylamide monomer does not include a sulfonic acid function. The fluid loss additive controls fluid loss at temperatures up to 350° F.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 4, 2017
    Assignee: FRITZ INDUSTRIES, INC. A CORPORATION OF TEXAS
    Inventors: James C. Ferrell, Jr., Lauren T. Gallagher, Bilal H. Bazzi
  • Patent number: 9593552
    Abstract: A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: March 14, 2017
    Assignees: Lawrence Livermore National Security, LLC, Apache Corporation
    Inventors: Roger D. Aines, William L. Bourcier, Eric B. Duoss, William C. Floyd, III, Christopher M. Spadaccini, John J. Vericella, Kenneth Michael Cowan
  • Patent number: 9523029
    Abstract: A description is given of a two-component mortar composition having a curable resin component having a content of at least one free-radically polymerizable resin, fillers, accelerators, stabilizers and optionally further conventional mortar constituents and a hardener component which is arranged separately therefrom to inhibit reaction and has a content of at least one peroxide for chemical fastening of anchoring means in boreholes, which is characterized in that the resin component contains from 0.1 to 0.5% by weight of at least one accelerator and from 0.003 to 0.03% by weight of at least one stabilizer and the hardener component contains from 0.1 to 0.35% by weight of organic peroxide, in each case based on the total weight of resin component and hardener component, and also the use of this two-component mortar composition for chemical fastening of anchoring means in boreholes.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: December 20, 2016
    Assignee: Hilti Aktiengesellschaft
    Inventor: Thomas Buergel
  • Patent number: 9464193
    Abstract: Modified polyphenol binder compositions and methods for making and using same are provided. In at least one specific embodiment, the binder composition can include at least one unsaturated monomer and at least one polyphenolic compound. The polyphenolic compound can include a lignin, a tannin, a novolac resin, a modified phenol formaldehyde resin, bis-phenol A, humic acid, or any mixture thereof.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: October 11, 2016
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Cornel Hagiopol, Derek L. Atkinson
  • Patent number: 9321954
    Abstract: Methods comprising providing a consolidation composition comprising the reaction product of a liquid curable resin and a liquid curing agent, wherein the liquid curable resin is an epoxy-functionalized alkoxysilane and wherein the liquid curing agent is selected from the group consisting of: a polyamine; a hydrophobically modified polyamine; a polyimine; a hydrophobically modified polyimine; a polyalcohol; hydrophobically modified polyacrylamide; a hydrophobically modified polyacrylate; and any combination thereof; coating proppant particulates with the consolidation composition, thereby creating coated proppant particulates; introducing the coated proppant particulates into a subterranean formation and placing the coated proppant particulates into a fracture therein; and curing the consolidation composition so as to consolidate the coated proppant particulates in the fracture and form a proppant pack therein.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: April 26, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Loan K. Vo, Philip D. Nguyen, James William Ogle, Feng Liang
  • Patent number: 9027930
    Abstract: A method of sealing a passage in a body with a sealing composition comprising (a) a major proportion of a latex emulsion or colloid; and (b) a minor proportion of lauric acid or a laurate compound; and (c) at least one further selected additive, ideally a latex coagulation inhibitor, wherein said composition is pumped into said passage where it is set or coagulated to form a seal. Advantageously, the laurate compound is ammonium laurate and coagulation is conveniently induced by adjusting pH of the sealing composition from alkaline to acidic pH range. The method is particularly well suited to sealing in faulty formations or sealing sites and may be used in sealing within salt mines which contain brines.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: May 12, 2015
    Assignee: Relborgn Pty Ltd
    Inventors: Nico Johan Grobler, Deon Van Dyk
  • Publication number: 20150101810
    Abstract: A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Inventors: Roger D. Aines, William L. Bourcier, Eric B. Duoss, William C. Floyd, III, Christopher M. Spadaccini, John J. Vericella, Kenneth Michael Cowan
  • Publication number: 20150099674
    Abstract: The invention provides a composition made of fibers and a material able to exhibit reverse solubility. The invention preferably is used in a well and as a method to cure lost circulation.
    Type: Application
    Filed: December 14, 2014
    Publication date: April 9, 2015
    Inventors: Jesse C. Lee, Nikhil Shindgikar
  • Publication number: 20150068428
    Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 12, 2015
    Inventors: Simon Gareth James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 8967254
    Abstract: A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 3, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 8962710
    Abstract: It is proposed a new fluid loss control agent useful for the cementation of oil or gas wells. This fluid loss control agent consists of a mixture of a styrene-butadiene latex and a high molecular weight water-soluble polymer such as a copolymer AMPS-Am. The addition of the water-soluble polymer allows drastic reduction of the quantity of latex required to achieve fluid loss control performance and even gas migration control.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: February 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Michel Michaux, Bruno Drochon, Sylwia Komocki
  • Publication number: 20150051311
    Abstract: Epoxy-based zonal isolation compositions are capable of being adjusted by varying the epoxy-based compositions for isolating zones in borehole of oil and gas wells under high-temperature, mid-temperature and low-temperature conditions.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Inventors: Frank Zamora, Sarkis R. Kakadjian, Tina Garza
  • Patent number: 8946133
    Abstract: A composition made of fibers and a material able to exhibit reverse solubility has utility for treating subterranean wells. The composition may used to cure lost circulation. The composition may be added to drilling fluids, spacer fluids or cement slurries. As the fluid temperature increases in a well, the reverse solubility material may precipitate and migrate to the fibers, causing the fibers to stick to each other and form a network, thereby forming a barrier that reduces further egress of treatment fluid from the wellbore.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: February 3, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Jesse Lee, Nikhil Shindgikar
  • Patent number: 8940669
    Abstract: Of the many compositions and methods provided herein, an example method includes a method of treating a subterranean formation that comprises combining components comprising water and a density-matched suspension to prepare a treatment fluid, wherein the density-matched suspension comprises a suspending liquid and a solid particle suspended in the suspending liquid, and introducing the treatment fluid into a well bore. An example composition includes a suspension that comprises a suspending liquid comprising a hydrophobic liquid, wherein the hydrophobic liquid hydrolyzes when placed in contact with an aqueous fluid to form hydrophilic products, and a solid particle suspended in the suspending liquid, wherein the suspension is a density-matched suspension.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: January 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Michael Szymanski, Christopher Gordon
  • Publication number: 20140364535
    Abstract: Methods and cement compositions are provided that utilize treated polyolefin fibers for lost circulation and/or mechanical property enhancement. Disclosed is a method comprising: providing a cement composition comprising: a hydraulic cement; water; and treated polyolefin fibers that are rod-shaped and have a length in a range from about 0.0625 inches to about 0.25 inches, wherein the treated polyolefin fibers have been treated with a surfactant to make the treated polyolefin fibers hydrophilic; placing the cement composition in a selected location; and allowing the cement composition to set.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: Jiten Chatterji, James Robert Benkley, Gregory Robert Hundt, Darrell Chad Brenneis, John Lewis Dennis, JR.
  • Patent number: 8877831
    Abstract: Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: November 4, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Craig W. Roddy, Jeffery D. Karcher, Rickey L. Morgan, D. Chad Brenneis
  • Patent number: 8876437
    Abstract: A method of treating an earth formation that includes introducing at least one blocked isocyanate in a liquid phase into the earthen formation; introducing at least one active hydrogen compound into the earthen formation; and contacting the blocked isocyante and the active hydrogen compound form an elastomeric gel is disclosed.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: November 4, 2014
    Assignee: M-I L.L.C.
    Inventor: David Antony Ballard
  • Publication number: 20140318786
    Abstract: Subterreanean formations penetrated by a wellbore may be stimulated by injecting a well-treatment fluid at a rate and pressure sufficient to create and propagate a fracture in the formation. The treatment fluid comprises a first slurry comprising at least one inorganic cement, water and at least one disruptive agent that may cause the formation of open channels in the fracture through which hydrocarbons in the formation may flow into the wellbore. The disruptive agent may comprise (but would not be limited to) water-soluble polymers that cause flocculation and agglomeration of cement solids, expansive agents, explosive agents, degradable materials, or a combination thereof.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 30, 2014
    Inventors: Konstantin Viktorovich Vidma, Sergey Mikhailovich Makarychev-Mikhailo, Anna Sergeyevna Mezdrokhina, Vadim Kamil'evich Khlestkin
  • 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
  • Patent number: 8869895
    Abstract: Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, fumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition maintained under a temperature condition of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition maintained under a temperature condition of 217° F.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: October 28, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Girish Dinkar Sarap, Sandip Prabhakar Patil, Dibyadarshani Senapati, Abhijit Tarafdar
  • Publication number: 20140316026
    Abstract: A self-adaptive cement formulation includes cement, water, block copolymer and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Inventors: Sylvaine Le Roy-Delage, Laure Martin
  • Publication number: 20140311742
    Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Clara Carelli, Loic Regnault de la Mothe, Sylvaine Le Roy-Delage
  • Publication number: 20140284052
    Abstract: Cement compositions comprising an inorganic cement, water, polymer particles and a water immiscible fluid are useful for reducing the torque necessary to rotate casing during a cementing operation. Such casing movement promotes efficient removal of drilling fluid from the annulus between the casing and the formation or the casing and another casing string. The compositions are particularly useful for cementing operations involving deviated and horizontal wells.
    Type: Application
    Filed: December 10, 2012
    Publication date: September 25, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Simon Gareth James, Lidia Gorokhova
  • Publication number: 20140262228
    Abstract: A composition including a wellbore work fluid and a polymer having mechanically labile chemical bonds is injected downhole, and combines with fluid present downhole to yield a composite fluid. Mechanical energy (e.g., ultrasonic energy) is provided to the composite fluid downhole to cleave the mechanically labile chemical bonds in the polymer. The polymer may be used as a viscosifier, friction reducer, or fluid loss additive. Cleaving the mechanically labile chemical bonds with mechanical energy allows precise degradation downhole.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jay Paul Deville, Hui Zhou
  • Patent number: 8813842
    Abstract: A plurality of solid particles including a thermoplastic composition having a softening temperature in a range from 50° C. to 180° C. and a blocked isocyanate resin; optionally at least some of the particles in the plurality of solid particles comprise both the thermoplastic composition and the blocked isocyanate resin. A composition comprising the plurality of particles dispersed in a fluid is also disclosed. A method of modifying a wellbore within a geological formation is also disclosed. The method includes introducing the fluid composition into the wellbore. A method of making a plurality of particles, for example, to use in the fluid composition, is also disclosed.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: August 26, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Michael D. Crandall, Ignatius A. Kadoma, Clara E. Mata, Yong K. Wu
  • Patent number: 8802748
    Abstract: A graft polymer mixture comprising a grafting base based on brown coal and/or polyphenol is proposed, which has, as a graft component, a copolymer consisting of one or more ethylenically unsaturated monomers different from one another and one or more polyamides different from one another. Typical grafting bases are brown coal, brown coal coke, lignite and brown coal derivatives and tannins. Suitable graft components are in particular vinyl-containing components and styrenes, which may also be present in sulphonated form. Natural polyamides, such as, for example, casein, gelatin and collagen, are suitable polyamide components. These graft polymers having a preferred molar mass Mn>5000 g/mol are suitable as a mixture, in particular in construction chemistry applications, and in the development, exploitation and completion of underground mineral oil and natural gas deposits, and in deep wells, since they have excellent salt and temperature stabilities and are simultaneously water-soluble and/or biodegradable.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: August 12, 2014
    Assignee: BASF Construction Solutions GmbH
    Inventors: Andrea Assmann, Roland Reichenbach-Klinke
  • Publication number: 20140174724
    Abstract: The present invention relates to hollow hydrogel capsules. In various embodiments, the present invention provides a method of treating a subterranean formation with a hollow hydrogel capsule including a hydrogel shell including a hydrolyzed and crosslinked polymerized composition. The hollow hydrogel capsule also includes a hollow interior including at least one component of a downhole composition for subterranean petroleum or water well drilling, stimulation, clean-up, production, completion, abandonment, or a combination thereof. In various embodiments, the present invention provides compositions comprising the hollow hydrogel capsules and methods of making the hollow hydrogel capsules.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip Wayne Livanec, Scott Anthony Klasner
  • Patent number: 8728231
    Abstract: Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, fumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: May 20, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Girish Dinkar Sarap, Sandip Prabhakar Patil, Dibyadarshani Senapati, Abhijit Tarafdar
  • Publication number: 20140123879
    Abstract: Methods and compositions are disclosed that comprise interground perlite and hydraulic cement. An embodiment provides a composition comprising interground perlite and hydraulic cement. Another embodiment provides a composition comprising: interground unexpanded perlite and Portland cement, the interground having a mean particle size of about 0.5 microns to about 10 microns; and water.
    Type: Application
    Filed: December 30, 2013
    Publication date: May 8, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jeffery Dwane Karcher, D. Chad Brenneis, Craig W. Roddy, James R. Benkley
  • Publication number: 20140107252
    Abstract: Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method comprising providing a fluid that comprises a weighted elastomer, wherein the weighted elastomer comprises an elastomer and a weighting agent attached to an outer surface of the elastomer; and introducing the fluid into a subterranean formation.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 17, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Craig W. Roddy, Jeffery D. Karcher, Rickey L. Morgan
  • Publication number: 20140107253
    Abstract: Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a weighted elastomer comprising an elastomer, and a weighting agent attached to an outer surface of the elastomer. The weighted elastomer may have a specific gravity of at least about 1.1.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 17, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Craig W. Roddy, Jeffery D. Karcher, Rickey L. Morgan
  • Publication number: 20140100304
    Abstract: A process allowing the encapsulation of a polymerization accelerator comprising the steps of: a) providing an reverse emulsion containing, in an oil phase, a water solution/dispersion containing the polymerisation activator, the oil phase including a heat curable mixture of an isocyanate and a polyalkyldiene hydroxylated or polyol, b) pouring the reverse emulsion in a water phase to make a multiple emulsion water/oil/water, containing drops of activators as the internal water phase, and then, c) heating the multiple emulsion obtained in step b) at a temperature of between 50 and 95° C., in order to cure the polyisocyanate in polyurethane and obtain drops of activator enclosed in shells of polyurethane dispersed in water. The invention also relates to aqueous gelling systems comprising the encapsulated polymerization accelerator with water soluble or dispersable monomers and a polymerization initiator dispersed in said monomers, useful i.a.
    Type: Application
    Filed: March 8, 2012
    Publication date: April 10, 2014
    Applicant: RHODIA OPERATIONS
    Inventors: Arnaud Cadix, Rabih Rached, Pierre Ardaud
  • Publication number: 20140087977
    Abstract: Swellable compositions including at least one curable elastomer, a least one cure system, at least one high molecular weight (HMW) swelling agent and at least one low molecular weight (LMW) swelling agent. Methods for making swellable compositions including at least one curable elastomer, a least one cure system, at least one high molecular weight (HMW) swelling agent and at least one low molecular weight (LMW) swelling agent. Methods for using swellable compositions including at least one curable elastomer, a least one cure system, at least one high molecular weight (HMW) swelling agent and at least one low molecular weight (LMW) swelling agent.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 27, 2014
    Inventors: Byong Jun Kim, Deborah Lynn Banta, William David Breach
  • Publication number: 20140087974
    Abstract: Additives used in treatment fluids include particulate weighting agents comprising removable coatings which can be used in methods such as drilling and cementing operations; a method includes providing a treatment fluid for use in a subterranean formation, the treatment fluid including a coated particulate weighting agent including a core weighting agent having a first specific gravity and a removable polymer coating having a second specific gravity, the first specific gravity and the second specific gravity are not the same, introducing the treatment fluid into the subterranean formation, and allowing a portion of the removable polymer coating to be removed to alter the specific gravity of the coated particulate weighting agent down hole.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Alfredo Villarreal, William Walter Shumway
  • Publication number: 20140051606
    Abstract: The invention provides concentrates for reducing the fluid loss on an oil base well drilling or servicing fluid, the concentrates comprising an oleagineous liquid and (1) a polymer which is solublized in the oleagineous liquid, or (2) a polymer which is solublized in the oleaginous liquid together with an organophilic polyphenolic material which is solublized and/or dispersed in the oleagineous liquid. The method of preparing the concentrate and the method of reducing the fluid loss of an oil base well drilling or servicing fluid utilizing the concentrates is also disclosed. The preferred oil soluble polymer is a styrene-butadiene rubber crumb. The preferred oleagineous liquid is an aromatic-free hydrogenated oil essentially containing only saturated hydrocarbons. The preferred polyphenolic material is a source of humic acid, such as mined lignite.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 20, 2014
    Applicant: TUCC Technology, LLC
    Inventors: James W. Dobson, JR., Kim O. Tresco
  • Publication number: 20140034314
    Abstract: Methods and compositions for cementing are disclosed. Embodiments include a method of cementing comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, a primary set retarder, a secondary set retarder; activating the set-delayed cement composition to produce an activated cement composition; introducing the activated cement composition into a subterranean formation; and allowing the activated cement composition to set in the subterranean formation.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Samuel J. Lewis, Kyriacos Agapiou, Peter James Boul, Pauline Akinyi Otieno, Thomas Jason Pisklak, Lance Everett Brothers
  • Publication number: 20140011908
    Abstract: A cement composition for use in an oil or gas well, the cement composition comprises: cement; water; and a polymer, wherein the polymer: (i) comprises a monomer or monomers capable of forming a polyester; and (ii) is capable of providing a thickening time of at least 2 hours at a temperature of 400° F. (204.4° C.) and a pressure of greater than about 500 psi (3.4 MPa) for a test composition consisting essentially of: the cement; the water; and the polymer, and in the same proportions as in the cement composition. A method of cementing in a subterranean formation comprises: introducing the cement composition into the subterranean formation; and allowing the cement composition to set.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: B. Raghava REDDY, Russel FITZGERALD, Drew GAUGLER
  • Patent number: 8623936
    Abstract: Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: January 7, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Craig W. Roddy, Jeffery D. Karcher, Rickey L. Morgan
  • Publication number: 20130319295
    Abstract: A stable non-settling slurry of water and manganomanganic oxide particles having a particle size below 10 ?m. The slurry comprises water and up to 92 wt % manganomanganic oxide particles bade on the weight of the slurry. The slurry has a pH between 9 and 11 and contains 0.05 to 0.5 wt % of a dispersant based on the weight of dry manganomanganic oxide particles. The dispersant can be an ethoxylated polycarboxylate or a polyacrylic acid salt and has a molecular weight between 500 and 50 000 g/mol.
    Type: Application
    Filed: September 14, 2011
    Publication date: December 5, 2013
    Applicant: ELKEM AS
    Inventors: Mohamed Al-Bagoury, Vidar Frank Rostol
  • Patent number: 8598252
    Abstract: A compressible and highly flexible plugging agent comprises the following components in parts by weight: 70-80 parts of natural rubber, 0.5-1 part of polyacrylamide (PAM), 1.5-3 parts of polyanionic cellulose (PAC), 0.5-1 part of biopolymer XC and 10-15 parts of ultrafine calcium carbonate; and the preparation method thereof comprises the following steps: adding the components in the weight parts into the natural rubber in order according to the common preparing method at normal temperature and pressure, mixing and stirring evenly, drying and then grinding into particles of 0.05-50 mm. The plugging agent is characterized by wide raw material sources, simple process, safe application, high plugging ratio and high compressibility, which is suitable for oil recovering and geological drilling applications.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: December 3, 2013
    Assignee: Dongying Taier Petrol Technology Co., Ltd.
    Inventors: Yuehua Sui, Fang Guan, Aizhao Zhou, Xiaoping Zhao, Shuai Zhang, Genyu Cui, Yuanqiang Cui, Yongquan Sui, Shuwei Wang, Lei Ge, Zhanfu Chi, Chunyu Wang, Zhijie Liu
  • Publication number: 20130312641
    Abstract: Embodiments relate to cementing operations and, more particularly, in certain embodiments, to settable compositions that comprise kiln dust and wollastonite and methods of use in subterranean formations. An embodiment discloses a method of cementing comprising: providing a settable composition comprising kiln dust, wollastonite, and water; and allowing the settable composition to set.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 28, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Darrell Chad Brenneis, Baya Adams, Craig Wayne Roddy
  • Publication number: 20130317135
    Abstract: Water Shut-off (WSO) system comprising organic products with relatively low viscosity, which are pumped to into a well in liquid state, and after a certain period of time, reach the desired consistence that may vary from a rigid gel, to produce a complete water flow blockage, up to deformable gels, which produce only a partial blockage effect, reducing significantly the water passage and still allowing the oil passage.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Inventor: Isabel Natalia VEGA
  • Publication number: 20130306306
    Abstract: A polymer composition includes a base polymer comprising a hydrocarbon rubber, an acrylic copolymer, and a refined oil in which the acrylic polymer is dispersed. The polymer composition is swellable when treated with an aqueous medium, non-aqueous medium, or both. A sealing element for a flow channel includes an expandable section filled with a swellable composition that swells when treated with a swelling material. The swellable composition includes the polymer composition, and the swelling material may be aqueous, non-aqueous, or both.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 21, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: James R. Korte, John Thurston
  • Publication number: 20130284439
    Abstract: According to an embodiment, a composition is provided that can be used in a cementing. The composition includes at least: (i) a hydraulic cement; and (ii) a copolymer comprising at least the monomeric units (a) through (d) of the following formula: wherein the monomeric units (a) through (d) can be any sequence and any proportion in the copolymer. With water, the composition of the hydraulic cement and such a copolymer becomes a cement composition. According to the method, the cement composition is introduced into a well and allowed to set in the well.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 31, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Tushar Sureshgir Gosavi, Ramesh Muthusamy, Rahul Chandrakant Patil, Sandip Prabhakar Patil
  • Publication number: 20130255949
    Abstract: A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing in a subterranean formation comprising: introducing a cement composition comprising cement, water, and a lignite-based copolymer into a subterranean formation, wherein the lignite-based copolymer comprises a lignite backbone, a first grafted monomer selected from the group consisting of -acrylamido-2-methylpropanesulfonic acid, a salt of 2-acrylamido-2-methylpropanesulfonic acid, and a second grafted monomer comprising N,N-dimethylacrylamide; and allowing the cement composition to set in the subterranean formation, wherein cement composition has a transition time of less than or equal to about 150 minutes.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Matthew G. Kellum, Lance E. Brothers
  • Publication number: 20130261220
    Abstract: The present invention relates to a synthetic cement that comprises a low viscosity monofunctional monomer, a dicyclopentadienyl moiety having a pendant free radical reactive species, 1,3-butyleneglycol dimethacrylate, unsaturated styrenic block copolymer, and a peroxide curing agent. Additionally it may include weighting agents depending on the circumstances of the well, as is well known to those skilled in the art. Other additional components such as oil based mud, suspending agents, Portland cement, acrylates and methacrylates, retardant curing additives, and clays may optionally be incorporated into the synthetic cement. The synthetic cement is activated by heat, for example, and can be crafted to set within a certain time frame, for example in 4 hours, so that it pumpable for as long as need be, and then be set to seal the well in the manner desired.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Applicant: KRATON POLYMERS US LLC
    Inventor: Erin Murphy
  • Publication number: 20130255948
    Abstract: Well-cementing compositions for use in high-pressure, high-temperature (HPHT) wells are often densified, and contain weighting agents such as hematite, ilmenite, barite and hausmannite. The weighting agents are usually finely divided to help keep them suspended in the cement slurry. At high temperatures, finely divided weighting agents based on metal oxides react with the calcium-silicate-hydrate binder in set Portland, cement, leading to cement deterioration. Finely divided weighting agents based on metal sulfates are inert with respect to calcium silicate hydrate; consequently, set-cement stability is preserved.
    Type: Application
    Filed: December 7, 2011
    Publication date: October 3, 2013
    Inventors: Michel Michaux, Laurent Gabilly