Expanding, Foaming Or Porosity Producing Additive Patents (Class 106/820)
  • Patent number: 10870605
    Abstract: The present invention relates to a compound for making high-temperature-resistant or refractory molded bodies, made up of a mixture of: a refractory or high-temperature-resistant inorganic powder, granules and/or granulate, including a free-flowing compound or a powder made of carbon or also without carbon, a binder, the binder being made of a combination of tannin, lactose, fine-grained silica and aluminum powder, as well as the binder itself, and molded bodies produced from the compound including the binder, and a method of making same.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 22, 2020
    Assignee: REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Erwan Gueguen, Christos G. Aneziris, Christiane Biermann, Antoine Ducastel
  • Patent number: 10399901
    Abstract: The invention relates to a method for the expansion of sand grain-shaped raw material (1) in which the raw material (1) drops downwards through a substantially vertical heated shaft (4) provided with means (2) for forming a temperature profile (3), in which a shaft flow (5) prevails wherein the raw material (1) expands as a result of heat transfer in the shaft (4) to form expanded granulate (6) and the granulate formed (6) is passed into a pneumatic conveying line (7) with a conveying flow (8) for further transport. In order to continuously check the quality of the expansion process, the bulk density of the expanded granulate (6) is measured continuously, wherein upon detecting a deviation from at least one defined bulk density, the temperature profile (3) in the shaft (4) is adapted automatically or manually and/or the feeding of raw material (1) into the shaft (4) is reduced automatically or manually.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 3, 2019
    Assignee: Binder + Co AG
    Inventors: Harald Tschernko, Markus Alfred Pusch, Bernhard Neukam, Ernst Erwin Brunnmair
  • Publication number: 20150087521
    Abstract: Sulfate and sulfonate derivatives of unsaturated fatty alcohols, processes for making them, and methods of using them are disclosed. In one aspect, a monounsaturated fatty alcohol composition is made by reducing a metathesis-derived monounsaturated alkyl ester. The fatty alcohol composition is then converted to a sulfate or sulfonate derivative by one or more of alkoxylation, sulfation, sulfonation, and sulfitation. Of particular interest are the sulfate and ether sulfate derivatives.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 26, 2015
    Applicant: Stepan Company
    Inventors: David R. Allen, Marcos Alonso, Mary Beddaoui, Randal J. Bernhardt, Aaron Brown, Scott Dillavou, Xue Min Dong, Wilma Gorman, John C. Hutchison, Gary Luebke, Renee Luka, Franz Luxem, Andrew D Malec, Ronald A. Masters, Dennis S. Murphy, Nicholas Pendleton, Irma Ryklin, Patti Skelton, Brian Sook, Chris Spaulding, Krista Turpin, Gregory Wallace, Michael Wiester, Patrick Shane Wolfe
  • Publication number: 20130153222
    Abstract: A lightweight composite having an activated surface contains a lightweight hollow core particle having cement grains which may be adhered to the hollow core or embedded in the surface of the hollow core. The hollow core particle may be prepared from calcium carbonate and a mixture of clay, such as bentonite, and a glassy inorganic material, such as glass spheres, glass beads, glass bubbles, borosilicate glass and fiberglass.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Inventors: Thomas J. Pisklak, Elizabeth G. Morillo, Qi Qu
  • Patent number: 8454742
    Abstract: A lightweight artificial stone system comprises a plurality of artificial stones, each of the artificial stones formed of at least some portion of cement, expanded glass, and styrene, the lightweight artificial stones having a density in the range of between about 30 and 70 pounds per cubic foot, each of the stones having six sides and including a first height dimension and a second width dimension, each of the height and width dimensions having a length unit being substantially a multiple of two, each of the stones having four ninety degrees corners and four of the six sides having a smooth surface to provide tight, cement-free seams between adjacent stones, the tight, cement-free seams inhibiting viewing of structure behind said plurality of artificial stones, each of the stones being of such a light weight so as to be held in position in the system by a lath-less and cement-free adhesive.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: June 4, 2013
    Inventor: Tom Scanlan
  • Patent number: 8435345
    Abstract: A method of curing cementitious material comprising added a carboxylated bleached wood pulp fiber to the material during mixing. The fiber has a carboxyl content of from 10 to 70 meq/100 g cellulose fiber. The fibers are 0.1 to 5% by weight of the dry weight of the cementitious material. The structure produced by the method. The autogenous shrinkage of the cementitious material is reduced.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: May 7, 2013
    Assignee: Weyerhaeuser NR Company
    Inventors: John A. Westland, David J. O'Callaghan
  • Publication number: 20120067251
    Abstract: The invention provides an expansive material that allows for large expansion of concrete at a material age of 2 to 7 days after pouring and permits concrete to have higher initial compressive strength and makes sure good storage stability, and a process for preparing that expansive material. The invention provides an expansive material and a process for preparing that expansive material, characterized in that clinker or pulverized clinker containing free lime, a hydraulic compound and calcium sulfate anhydrite is heat treated in a carbon dioxide gas atmosphere to form calcium carbonate in it. Preferably, the expansive material contains a particle in which the free lime, hydraulic compound, calcium sulfate anhydrite and calcium carbonate are all present; the content of calcium carbonate is 0.5 to 10% by mass; and the expansive material has a Blaine's specific surface area of 1,500 to 90,000 cm2/g. The expansive material is blended with cement into a cement composition.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 22, 2012
    Inventors: Takayuki Higuchi, Taiichiro Mori, Hideaki Ishida, Ryoetsu Yoshino, Minoru Morioka
  • Publication number: 20110297048
    Abstract: A foaming agent solution, cement material and concrete replacement product are described which include blood hydrolysates. The blood hydrolysates may be present in the foaming agent solution in the range 5-30% by volume of the solution.
    Type: Application
    Filed: December 30, 2009
    Publication date: December 8, 2011
    Applicant: GENESIS GLOBAL LIMITED
    Inventor: Anthony S.M. George
  • Patent number: 8030253
    Abstract: Of the many compositions provided herein, an embodiment includes a foamed cement composition comprising a cementitious component, an oil-swellable particle comprising at least one swellable elastomer selected from the group consisting of acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, choloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene block copolymer, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene vinyl acetate copolymer, fluorosilicone rubber, silicone rubber, and combinations thereof, a foaming and stabilizing surfactant, gas, and water. Another embodiment includes a foamed cement composition comprising a cementitious component, an oil-swellable particle comprising a block copolymer of styrene butadiene rubber, a foaming and stabilizing surfactant, and gas.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: October 4, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Craig W. Roddy, Jiten Chatterji, Bobby J. King, D. Chad Brenneis
  • Publication number: 20100310846
    Abstract: Lightweight cementitious foams of the invention have excellent dynamic and dimensional stability due to use of foaming system comprising polycarboxylate surfactant foam generating agent, foam stabilizer (e.g., PVOH), and shrinkage reducing admixture to inhibit plastic shrinkage and micro-cracking of cement. The foaming system can be used in conventional cement mortars or concretes as well as with exemplary cementitious slurry systems of the invention, which include an expansive agent, a cross-linking agent for the foam stabilizer. Microfibers can be used in the foam, slurry, or both, to prevent micro-cracking. Cementitious foams can be made without use of autoclave or lightweight aggregates to achieve enhanced compressive strength and thermal insulation properties that compare favorably with conventional foams and insulation materials at comparable densities.
    Type: Application
    Filed: June 5, 2009
    Publication date: December 9, 2010
    Inventors: Neal S. Berke, Jordan S. Merritt, Lianfang Li, Antonio J. Aldykiewicz, JR., Robert A. Wiercinski, Michael D. Morgan
  • Publication number: 20100132594
    Abstract: A method is provided for reducing the density of a well cement composition for cementing in a subterranean formation. The method comprises providing a cement composition that comprises water and a cement, and then adding an additive comprising an anionic foam stabilizer and an anionic foaming agent or a Zwitterionic foam booster. A gas is added to this mixture to reduce the density. Further, foamed cement compositions and additives for foaming and stabilizing a well cement composition are provided.
    Type: Application
    Filed: February 8, 2010
    Publication date: June 3, 2010
    Inventors: Samuel J. Lewis, Michael J. Szymanski, Kristi D. Thacker
  • Publication number: 20100025040
    Abstract: A variety of methods and compositions are disclosed, including, in one embodiment, a cement composition comprising: cement; a surfactant composition comprising: an ethoxylated alcohol ether sulfate in an amount in the range of about 60 to about 64 parts by weight, a first alkyl or alkene amidopropyl betaine in an amount in the range of about 30 to about 33 parts by weight, and a second alkyl or alkene amidopropyl betaine in an amount in the range of about 1 to about 5 parts by weight; a gas; and water.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Inventors: Jiten Chatteri, D. Chad Brenneis, Bobby J. King
  • Patent number: 7608566
    Abstract: Particulate compositions that comprise macro-particulates, and degradable particulates in an amount sufficient to reduce friction between the macro-particulates, the degradable particulates having a mean particle diameter of at least about 20 times smaller than the mean particle diameter of the macro-particulates are disclosed herein. Also disclosed are fluids that comprise a liquid component, and a particulate composition, the particulate composition comprising macro-particulates and degradable particulates having a mean particle diameter of at least about 20 times smaller than the mean particle diameter of the macro-particulates, wherein the degradable particulates are present in the particulate composition in an amount sufficient to reduce friction between the macro-particulates. Methods of using the particulate compositions and fluids are also disclosed.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: October 27, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rajes K. Saini, Michael J. R. Segura
  • Publication number: 20090249975
    Abstract: The invention relates to molecular de-airentrainer compositions comprising at least one ethoxylated ether amine and at least one acetylenic alkoxylate. The molecular de-airentrainer compositions are useful in controlling the air content of a superplasticizing mixture. The molecular de-airentrainer of the invention are useful in a variety of applications, including the preparation of cementitious mixtures, coatings and pressure sensitive adhesives.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 8, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventor: Laurent Jacques Robert Herschke
  • Publication number: 20090031925
    Abstract: [Problem to be Solved] To provide a gas-forming agent which exhibits no hydrogen embrittlement and allows gas generation to achieve a desired amount of inflation even in the presence of nitrite, and a cement composition utilizing the agent which offers improved shrinkage compensation. [Solution] The gas-forming agent for a cement composition containing nitrite comprises a substance which produces nitrogen gas through a reaction in the cement composition.
    Type: Application
    Filed: June 6, 2006
    Publication date: February 5, 2009
    Inventors: Takao Furusawa, Takashi Ishii, Takeo Ozawa
  • Publication number: 20080099200
    Abstract: A system for preventing the migration of unconsolidated and/or loosely consolidated material into a wellbore. Such prevention is accomplished by introducing a well treatment medium comprising an expandable fluid and a bonding agent into an unconsolidated zone proximate the wellbore. The expandable fluid is allowed to expand and flow through the unconsolidated zone while the bonding agent cures, thereby forming a consolidated zone having sufficient porosity to allow fluid flow therethrough.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 1, 2008
    Applicant: CONOCOPHILLIPS COMPANY
    Inventor: Dennis R. Wilson
  • Patent number: 7303014
    Abstract: Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of a set retarder. An example of a method is a method of cementing in a subterranean formation. Other examples of methods are methods of cementing in a subterranean formation comprising a well bore.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: December 4, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul, Michael G Crowder, Henry E. Rogers, James E. Griffith
  • Patent number: 7270183
    Abstract: A method of cementing at least two casing strings in a well bore, the method having steps as follows: filling the well bore and the inner diameters of the at least two casing strings with a cement composition, wherein at least a portion of the cement composition is a compressible cement composition; pumping the cement composition from the inner diameters of the at least two casing strings into the annulus, wherein the compressible portion of the cement composition is compressed by the pumping; and permitting the cement composition to set within the annulus.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: September 18, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Daniel L. Bour, Michael D. McMillion
  • Patent number: 7191834
    Abstract: A method of cementing in a subterranean formation that comprises providing a foamed cement composition that comprises water, a cement, a gas, and an additive, the additive comprising an anionic foaming agent and at least one of an anionic foam stabilizer or a Zwitterionic foam booster; placing the cement composition into the subterranean formation; and allowing the cement composition to set therein is provided. Foamed cement compositions, additives for foaming and stabilizing a cement composition, and methods of reducing the density of a cement composition, also are provided.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: March 20, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Samuel J. Lewis, Michael J. Szymanski, Kristi D. Thacker
  • Patent number: 7172022
    Abstract: The present invention provides cement compositions that include degradable materials, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention includes: providing a cement composition that includes a hydraulic cement, and a degradable material; placing the cement composition in a subterranean formation; allowing the cement composition to set therein; and allowing the degradable material to degrade. Another example of a method of the present invention is a method of enhancing the mechanical properties of a cement composition including adding a degradable material to the cement composition and allowing the degradable material to degrade.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: February 6, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Frank Zamora, Philip D. Nguyen, Trinidad Munoz, Jr., Anthony V. Palmer
  • Patent number: 6893496
    Abstract: Blended cement compositions for mixture with aggregate and water to prepare cementitious products. Such blended cement compositions contain cement, calcined diatomaceous earth, calcined kaolin, fiberous material and reactive vinyl acetate co-polymers, with or without talc and/or bentonite or their functional equivalents. Admixtures for blending into cement to create such blended cements or their read-mix equivalents contain calcined kaolin, calcined diatomaceous earth, fiberous material and reactive vinyl acetate co-polymers, with or without talc and/or bentonite or their functional equivalents.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 17, 2005
    Assignee: Universal White Cement Company, Inc.
    Inventor: Vaughn R. Liljenquist
  • Patent number: 6855201
    Abstract: A cement composition is basically comprised of a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer additive comprised of 69 weight % of the calcium salt of 2-acrylamido-2-methyl propane sulfonic acid, 14 weight % of the calcium salt of maleic acid, 14 weight % of N-vinyl caprolactam and 3 weight % of 4-hydroxybutyl vinyl ether.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: February 15, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry S. Eoff, Krista L. Keener
  • Publication number: 20040177963
    Abstract: The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed well composition. The process utilizes air to foam the composition after the air has been treated to lower the oxygen content below that concentration necessary to support combustion. Additionally, the current invention provides a process for completing and/or treating a well bore using a foamed composition wherein the foam is generated with reduced oxygen content air. Finally, a preferred embodiment of the invention provides a foamed cement composition wherein the gaseous portion of the composition is air having a reduced oxygen content.
    Type: Application
    Filed: July 9, 2003
    Publication date: September 16, 2004
    Inventors: Jiten Chatterji, Richard L. Middaugh, James E. Griffith
  • Publication number: 20030234102
    Abstract: The present invention provides methods and compressible foamed sealing compositions for sealing expandable pipe in well bores. The compressible sealant compositions for sealing expandable pipe are basically comprised of a hydraulic cement, a rubber latex, a rubber latex stabilizer, a gas and a mixture of foaming and foam stabilizing surfactants.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Inventors: Lance E. Brothers, Anthony V. Palmer
  • Patent number: 6663851
    Abstract: A product obtained by treating surface-modified, pyrogenically produced titanium dioxide with at least one ammonium-functional silane, such as by spraying the pyrogenically produced titanium dioxide with the at least one silane, alone or in ethanol solution, and tempering, and useful in the field of cosmetics in sunblocks, in toner powders, in paints and varnishes, in silicone rubber, as abrasives and polishes, for example, in the field of CMP.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: December 16, 2003
    Assignee: Degussa AG
    Inventors: Klaus Deller, Dieter Kerner, Juergen Meyer
  • Patent number: 6656265
    Abstract: The present invention provides a cementing composition for an oil well or the like with porosity of less than 50%, and with a solid phase constituted by 35% to 65% (by volume) hollow microspheres, 20% to 45% Class G Portland cement, and 5% to 25% of Class G Portland micro-cement. The invention is used to cement conductor pipes in arctic zones or in deep water holes.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: December 2, 2003
    Assignee: Schlumberger Technology Corp.
    Inventors: André Garnier, Michel Michaux, Philippe Revil
  • Patent number: 6645289
    Abstract: The present invention relates to admixtures production and to a method of application of the admixtures in cement and concrete technology. The method allows production of high-strength and high durable cement based systems, as well as cement systems with specially designed properties of cheap high-volume mineral admixture cements.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: November 11, 2003
    Assignee: Sci Con Technologies, Inc.
    Inventors: Konstantin Sobolev, Svetlana Soboleva
  • Patent number: 6619399
    Abstract: The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed cement composition. The process utilizes air to foam the cement after the air has been treated to lower the oxygen content below that concentration necessary to support combustion. Additionally, the current invention provides a process for completing a well bore using foamed cement wherein the foam is generated with reduced oxygen content air. Finally, the current invention provides a foamed cement composition wherein the gaseous portion of the composition is air having a reduced oxygen content.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: September 16, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Richard L. Middaugh, James E. Griffith
  • Patent number: 6547871
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: April 15, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora
  • Publication number: 20030006038
    Abstract: The present invention provides improved compositions and methods for cementing casing strings in deep water offshore formations penetrated by well bores. The cement composition basically comprises hydraulic cement, water, an environmentally degradable water reducing and dispersing additive, an environmentally degradable set retarding additive and an environmentally degradable compressive strength and set accelerating additive.
    Type: Application
    Filed: August 7, 2002
    Publication date: January 9, 2003
    Inventors: B. Raghava Reddy, Russell M. Fitzgerald
  • Publication number: 20030000428
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Application
    Filed: August 13, 2002
    Publication date: January 2, 2003
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora
  • Patent number: 6500252
    Abstract: High strength foamed well cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. The foamed well cement compositions are basically comprised of a hydraulic cement, hydrophilic fibers, water sufficient to form a pumpable slurry, a mixture of foaming and foam stabilizing surfactants and sufficient gas to foam the slurry.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: December 31, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Bobby J. King, Frank Zamora, Clyde R. Anderson, Billy J. Bennett, Roger S. Cromwell
  • Patent number: 6478868
    Abstract: The present invention provides improved early-enhanced strength cement compositions and methods. The cement compositions can be utilized in surface construction projects as well as in the construction of oil, gas and water wells. The improved cement compositions of this invention are basically comprised of a hydraulic cement, water present in an amount sufficient to form a slurry and hydrophobic silica powder.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: November 12, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Baireddy R. Reddy, Ronald J. Crook, Bryan K. Waugh, Russell M. Fitzgerald, Dennis W. Gray, Brent E. Traxel
  • Patent number: 6454004
    Abstract: The present invention provides improved compositions and methods for cementing casing strings in deep water offshore formations penetrated by well bores. The methods are basically comprised of the steps of preparing a cement composition comprised of hydraulic cement, water, an environmentally degradable water reducing and dispersing additive, an environmentally degradable set retarding additive and an environmentally degradable compressive strength and set accelerating additive.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: September 24, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Russell M. Fitzgerald
  • Patent number: 6425950
    Abstract: The invention relates to a method for producing foaming substances, especially foaming cement substances, consisting essentially of a starting product, especially cement paste, and a foaming agent. The inventive substances are produced in a mixing reactor which is connected to a supply container for the starting product by a feed pump. A product flow taken from the mixing reactor is conveyed to the supply container in a circuit, the foaming agent and atmospheric air being added and the supply container being kept at a minimum level. After a mixing phase, a sub-flow is taken from the product flow for processing.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: July 30, 2002
    Inventor: Ferdinand Leitsch
  • Patent number: 6372037
    Abstract: An improved non-dispersing set retarder additive for foamed cements, cement compositions containing the additive, and methods of cementing in a subterranean zone penetrated by a well bore are provided. The set retarder additive includes a blend of a sulfonated lignin, preferably a lignosulfonate, with an alkali lignin, preferably a kraft lignin, having an organic sulfur content of 0-3.5% by weight in a ratio of about 6:4 to 8:2. The methods are basically comprised of the steps of preparing a foamed cement composition comprised of hydraulic cement, a non-dispersing set retarder, sufficient water to form a slurry, sufficient gas to foam the slurry and a foaming and foam stabilizing surfactant present in an amount sufficient to facilitate the formation of the foam and stabilize the foamed cement composition.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: April 16, 2002
    Assignee: LignoTech USA, Inc.
    Inventors: Stuart E. Lebo, Jr., Shane L. Resch
  • Patent number: 6350309
    Abstract: The present invention provides improved methods and compositions for cementing pipe strings in well bores. The methods of the invention are basically comprised of preparing a cement composition comprised of a hydraulic cement, an epoxy resin, a hardening agent for the epoxy resin and sufficient water to form a pumpable slurry. Thereafter, the cement composition is introduced into the annulus between a pipe string and a well bore and the cement composition is allowed to set into a resilient impermeable solid mass.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: February 26, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Robert D. Kuhlman, Bobby J. King
  • Patent number: 6336505
    Abstract: The present invention provides improved methods of cementing casing strings in deep water offshore formations penetrated by well bores. The methods are basically comprised of the steps of preparing a cement composition comprised of hydraulic cement, water, gas, a mixture of foaming and foam stabilizing surfactants, a cement early strength accelerator and a mildly set retarding cement dispersing agent, placing the cement composition in the annulus between the casing string and the well bore and allowing the cement composition to set into a hard impermeable mass.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: January 8, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Baireddy R. Reddy
  • Patent number: 6273191
    Abstract: The present invention provides improved methods of cementing casing strings in deep water offshore formations penetrated by well bores. The methods are basically comprised of the steps of preparing a cement composition having a short transition time comprised of hydraulic cement, a water reducing additive, a dispersing additive, a compressive strength enhancing and set retarding additive, a set accelerating additive and water, placing the cement composition in the annulus between the casing string and the well bore and allowing the cement composition to set into a hard impermeable mass.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: August 14, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Baireddy R. Reddy, Ronald J. Crook, Bryan R. Waugh
  • Patent number: 6264739
    Abstract: An dispersant for plaster comprising a copolymer prepared by copolymerizing (a) a polyalkylene glycol monoester monomer having 2 to 300 mols of an oxyalkylene group(s) each having 2 to 3 carbon atoms, with (b) at least one monomer selected from among acrylic monomers, unsaturated dicarboxylic monomers and allylsulfonic monomers. When the dispersant of the present invention is used in preparing a plaster board, the foam stability is maintained so that the quality of the plaster board composition can be easily controlled.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: July 24, 2001
    Assignee: Kao Corporation
    Inventors: Fujio Yamato, Kazushige Kitagawa, Yoshinao Kohno
  • Patent number: 6244343
    Abstract: An improved method of cementing casing in a deep water offshore formation penetrated by a well bore comprising the steps of preparing a foamed cement composition comprised of calcium aluminate cement, a set accelerating additive, a thickening time increasing additive, water, a gas, and a mixture of foam forming and foam stabilizing surfactants; placing the cement composition in the annulus between the casing and well bore; and allowing the cement composition to set into a hard impermeable mass therein.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: June 12, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lance E. Brothers, Anthony V. Palmer
  • Patent number: 6227294
    Abstract: Improved methods of cementing in a subterranean zone penetrated by a well bore are provided. The methods are basically comprised of the steps of preparing a foamed cement composition comprised of hydraulic cement, a non-dispersing set retarder, sufficient water to form a slurry, sufficient gas to foam the slurry and a foaming and foam stabilizing surfactant mixture present in an amount sufficient to facilitate the formation of the foam and stabilize the foamed cement composition.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: May 8, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King, Dennis W. Gray, Darrell C. Brenneis
  • Patent number: 6220354
    Abstract: High strength foamed well cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. The foamed well cement compositions are basically comprised of a hydraulic cement, hydrophilic fibers, water sufficient to form a pumpable slurry, a mixture of foaming and foam stabilizing surfactants and sufficient gas to foam the slurry.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: April 24, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Bobby J. King, Frank Zamora, Clyde R. Anderson, Billy J. Bennett, Roger S. Cromwell
  • Patent number: 6202751
    Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid, water present in an amount sufficient to form a slurry, a gas present in an amount sufficient to form a foam and a mixture of foaming and foamed stabilizing surfactants.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: March 20, 2001
    Assignee: Halliburton Energy Sevices, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King, Philip D. Nguyen, David L. Brown
  • Patent number: 6143069
    Abstract: The present invention provides light weight high temperature well cement compositions and methods. The compositions are basically comprised of calcium aluminate, ASTM class F fly ash and water.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: November 7, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lance E. Brothers, Susan M. Turkett, Barry B. Ekstrand, D. Chad Brenneis, Jerry D. Childs
  • Patent number: 6039800
    Abstract: Disclosed is a process of making foamed compositions of water, gypsum, and either or both of alpha-olefin sulfonates and/or amphoteric surfactants of formula (a) or (b)R.sup.4 --(OC.sub.3 H.sub.6).sub.0-1 --(C(O)NH(CH.sub.2).sub.1-3).sub.0-1 --N(Z.sup.1) (Z.sup.2).sub.0-1 --ZCOOX (a)R.sup.4 --(OC.sub.3 H.sub.6).sub.0-1 --(C(O)NH(CH.sub.2).sub.1-3).sub.0-1 --N(Z.sup.1) (Z.sup.2).sub.0-1 --ZSO.sub.3 X (b)wherein X is --H, a sodium, calcium, potassium, lithium or ammonium cation, or an amine of the formula --N.sup.+ H(C.sub.1-20 alkyl).sub.2 or --N.sup.+ H.sub.2 (C.sub.1-20 alkyl); or when a Z.sup.2 group is present there is no X group on --ZCOOX; R.sup.4 is straight or branched alkyl or alkylene, or cyclic or heterocyclic aromatic which is optionally substituted with alkyl, and contains 4 to 40 carbon atoms and 0-5 carbon-carbon double bonds; Z.sup.1 and Z.sup.2 are independently of each other H, C.sub.f H.sub.2f+1 or C.sub.f H.sub.2f OH wherein f is 1 to 6 and preferably 1, 2 or 3 or, in formula (a), one of Z.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 21, 2000
    Assignee: Witco Corporation
    Inventor: Mojahedul Islam
  • Patent number: 5996693
    Abstract: Methods and compositions for cementing pipe strings in well bores are provided. The compositions are basically comprised of a hydraulic cement, water, an in situ foam generating additive and a water-wetting foam stabilizing surfactant.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: December 7, 1999
    Assignee: Halliburton Energy Services, Inc.
    Inventor: James F. Heathman
  • Patent number: 5942031
    Abstract: Deadburned magnesium oxides (calcined at a temperature of above about 4000.degree. F.) can be advantageously utilized as an expanding additive in cements utilized to seal a metallic casing into the bore hole of a well. The deadburned magnesium oxide additives are particularly effective when used in cements having a curing temperature of about 120-200.degree. C. and particularly at temperatures greater than about 150.degree. C.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: August 24, 1999
    Assignee: Nalco/Exxon Energy Chemicals, L.P.
    Inventor: Ping-Sun Cheung
  • Patent number: 5900053
    Abstract: The present invention provides light weight high temperature well cement compositions and methods. The compositions are basically comprised of calcium phosphate cement, water, a foaming agent, a foam stabilizer and a gas present in an amount sufficient to form a foam having a density in the range from about 11.5 to about 15 pounds per gallon.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: May 4, 1999
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lance E. Brothers, D. Chad Brenneis, Jerry D. Childs
  • Patent number: 5897699
    Abstract: The present invention relates to improved foamed well cement compositions, additives and methods. The additives, which foam and stabilize a cement slurry containing freshwater or saltwater, are basically comprised of an aqueous solution of an alpha-olefinic sulfonate surfactant and a betaine surfactant.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: April 27, 1999
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, David D. Onan, Roger S. Cromwell, Bobby J. King