Patents by Inventor Russell Fitzgerald

Russell Fitzgerald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200190360
    Abstract: Presently described are methods for performing rosin purification. The methods described herein utilize a unique solvent precipitation process that surprisingly and unexpectedly reduces the color of rosin and the sulfur and unsaponifiable contents in the rosin. The described methods are also applicable to rosin derivatives such as rosin esters and amides. Utilizing this purified rosin as raw material, rosin derivatives with much improved characteristics (color, softening point and sulfur content) can be made that would otherwise be difficult to make.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Inventors: Bing Wang, Russell Fitzgerald
  • Patent number: 9359257
    Abstract: A dry, free-flowing cement composition that comprises dry cement particles and flow inducing particulates that comprise solid adsorbent particulates having adsorbed thereon a flow inducing chemical, ethylene glycol, and water. The water is present in an amount from 5% to 30.3% by weight of the solid adsorbent particulates, the ethylene glycol is present in an amount from 3.25 to 20% by weight of the solid adsorbent particulates, and the flow inducing particulate is present in an amount from 0.005% to 5% by weight of the cement. The dry, free-flowing cement composition is free-flowing at temperatures at least as low as 10° F.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 7, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Publication number: 20150321961
    Abstract: A dry, free-flowing cement composition that comprises dry cement particles and flow inducing particulates that comprise solid adsorbent particulates having adsorbed thereon a flow inducing chemical, ethylene glycol, and water. The water is present in an amount from 5% to 30.3% by weight of the solid adsorbent particulates, the ethylene glycol is present in an amount from 3.25 to 20% by weight of the solid adsorbent particulates, and the flow inducing particulate is present in an amount from 0.005% to 5% by weight of the cement. The dry, free-flowing cement composition is free-flowing at temperatures at least as low as 10° F.
    Type: Application
    Filed: June 24, 2015
    Publication date: November 12, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Patent number: 9096466
    Abstract: Compositions that may improve the flow properties of dry particulate cementitious and non-cementitious materials, and methods of synthesis and use, are provided. In one embodiment, the methods may comprise providing a flow enhancing additive comprising a flow inducing chemical, a solid adsorbent particulate material, ethylene glycol, and water; providing a cementitious material, a non-cementitious material, or a mixture of cementitious and non-cementitious material; and blending the flow enhancing additive with the cementitious material, the non-cementitious material, or the mixture of cementitious and non-cementitious material.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 4, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Patent number: 8586508
    Abstract: A composition comprising a carboxylated, sulfonated polysaccharide and a wellbore servicing fluid. A wellbore servicing composition comprising a hydraulic cement and a carboxylated, sulfonated polysaccharide. A wellbore servicing composition comprising a polysaccharide having carboxylate and sulfonate groups.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: November 19, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Anindya Ghosh, Russell Fitzgerald
  • Patent number: 8569214
    Abstract: A method of servicing a wellbore comprising introducing to the wellbore a wellbore servicing fluid comprising an additive composition comprising a polysaccharide having carboxylate and sulfonate groups. A method of servicing a wellbore comprising preparing at the well site an additive composition comprising a polysaccharide having carboxylate and sulfonate groups, introducing the additive composition into a wellbore servicing fluid, and placing the wellbore servicing fluid into a subterranean formation. A method of preparing a wellbore servicing fluid comprising contacting a polysaccharide composition with an oxidizing agent to form an oxidized polysaccharide, and contacting the oxidized polysaccharide with a sulfonating agent to form a carboxylated sulfonated polysaccharide, and contacting the carboxylated sulfonated polysaccharide with a wellbore servicing fluid.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: October 29, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Anindya Ghosh, Russell Fitzgerald
  • Publication number: 20120272870
    Abstract: Solid, flowable compositions comprising a dry, solid particulate material and a flow enhancing additive. The dry, solid particulate material may be cementitious, non-cementitious material, or a combination thereof. The flow enhancing additive comprises a solid, particulate absorbent material having absorbed thereon: a flow inducing chemical, ethylene glycol, and water. In some cases the flow inducing chemical comprises an organic acid, a salt of an organic acid, an acid anhydride, or a combination thereof.
    Type: Application
    Filed: June 1, 2012
    Publication date: November 1, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Publication number: 20120234540
    Abstract: Methods comprising providing a dry, solid particulate material comprising a cementitious material, a non-cementitious material, or a combination thereof and having a flow enhancing additive absorbed thereon. The flow enhancing additive comprises a flow inducing chemical, ethylene glycol, and water. The coated, dry, solid material is then mixed with a sufficient amount of water to form a pumpable slurry and then the slurry may be placed in a subterranean formation. In some cases the dry, solid particulate material comprising a cementitious material, a non-cementitious material, or a combination thereof and having a flow enhancing additive absorbed thereon may be stored for a period of time before the slurry is formed.
    Type: Application
    Filed: June 1, 2012
    Publication date: September 20, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Publication number: 20120214712
    Abstract: A method of servicing a wellbore comprising introducing to the wellbore a wellbore servicing fluid comprising an additive composition comprising a polysaccharide having carboxylate and sulfonate groups. A method of servicing a wellbore comprising preparing at the well site an additive composition comprising a polysaccharide having carboxylate and sulfonate groups, introducing the additive composition into a wellbore servicing fluid, and placing the wellbore servicing fluid into a subterranean formation. A method of preparing a wellbore servicing fluid comprising contacting a polysaccharide composition with an oxidizing agent to form an oxidized polysaccharide, and contacting the oxidized polysaccharide with a sulfonating agent to form a carboxylated sulfonated polysaccharide, and contacting the carboxylated sulfonated polysaccharide with a wellbore servicing fluid.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: B. Raghava Reddy, Anindya Ghosh, Russell Fitzgerald
  • Publication number: 20080229980
    Abstract: Compositions that may improve the flow properties of dry particulate cementitious and non-cementitious materials, and methods of synthesis and use, are provided. In one embodiment, the compositions may comprise a particulate solid adsorbent material, a flow inducing chemical, water, and ethylene glycol.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 25, 2008
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Publication number: 20080229979
    Abstract: Compositions that may improve the flow properties of dry particulate cementitious and non-cementitious materials, and methods of synthesis and use, are provided. In one embodiment, the methods may comprise providing a flow enhancing additive comprising a flow inducing chemical, a solid adsorbent particulate material, ethylene glycol, and water; providing a cementitious material, a non-cementitious material, or a mixture of cementitious and non-cementitious material; and blending the flow enhancing additive with the cementitious material, the non-cementitious material, or the mixture of cementitious and non-cementitious material.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 25, 2008
    Inventors: Sam Lewis, Rita McKinley, Russell Fitzgerald
  • Publication number: 20080011202
    Abstract: A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 17, 2008
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Ashok Santra, B. Reddy, Russell Fitzgerald
  • Publication number: 20070032388
    Abstract: Methods and compositions for wellbore treating fluids, especially drilling fluids, that comprise zeolite and a carrier fluid.
    Type: Application
    Filed: October 9, 2006
    Publication date: February 8, 2007
    Inventors: Donald Getzlaf, Karen Luke, Russell Fitzgerald
  • Publication number: 20070028811
    Abstract: Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and methods of making cement compositions containing proportioned fluid loss control additives.
    Type: Application
    Filed: October 10, 2006
    Publication date: February 8, 2007
    Inventors: Karen Luke, Russell Fitzgerald, Robert Taylor, Keith Rispler, Glen Fyten
  • Publication number: 20060289162
    Abstract: Methods of retarding the setting of a cement composition comprise including one or more secondary amines substituted with a carboxyl group or salts thereof (e.g., 3-hydroxy N,N?-iminodisuccinic acid) in the cement composition. The inclusion of such materials in cement compositions may be highly beneficial. In wellbores having BHCT's of less than or equal to about 250° F., the use of the secondary amine as the set retarder ensures that the thickening time of the cement composition is sufficient to allow the cement composition to be pumped to its desired downhole location. Further, the secondary amine may be used in combination with conventional set retarders to enhance the ability of those retarders to increase the thickening time of the cement composition at higher BHCT's, e.g., from about 250° F. to about 525° F.
    Type: Application
    Filed: June 22, 2005
    Publication date: December 28, 2006
    Inventors: Ashok Santra, Russell Fitzgerald
  • Publication number: 20060288910
    Abstract: Cement compositions may comprise one or more secondary amines substituted with a carboxyl group or salts thereof (e.g., 3-hydroxy N,N?-iminodisuccinic acid) for retarding the setting of such compositions. The inclusion of such materials in cement compositions may be highly beneficial. In wellbores having BHCT's of less than or equal to about 250° F., the use of the secondary amine as the set retarder ensures that the thickening time of the cement composition is sufficient to allow the cement composition to be pumped to its desired downhole location. Further, the secondary amine may be used in combination with conventional set retarders to enhance the ability of those retarders to increase the thickening time of the cement composition at higher BHCT's, e.g., from about 250° F. to about 525° F.
    Type: Application
    Filed: June 22, 2005
    Publication date: December 28, 2006
    Inventors: Ashok Santra, Russell Fitzgerald
  • Publication number: 20060272819
    Abstract: Base cement compositions comprising particle-size distribution-adjusting agents, and methods of using such base cement compositions in subterranean operations and surface applications are provided. An example of a method comprises: providing a base cement composition comprising water, a hydraulic cement, a set retarder, and a particle-size distribution-adjusting agent, the base cement composition having a density; adjusting the density of the base cement composition on-the-fly with a density modifying agent to provide a density-adjusted cement; activating the density-adjusted cement composition; placing the density-adjusted cement composition in a subterranean formation; and permitting the density-adjusted cement composition to set in the subterranean formation.
    Type: Application
    Filed: August 14, 2006
    Publication date: December 7, 2006
    Inventors: Ahok Santra, B. Reddy, Russell Fitzgerald
  • Publication number: 20060258547
    Abstract: Methods and compositions for wellbore treating fluids that include zeolite and at least one carrier fluid.
    Type: Application
    Filed: July 17, 2006
    Publication date: November 16, 2006
    Inventors: Karen Luke, Russell Fitzgerald, Frank Zamora
  • Publication number: 20060108150
    Abstract: Methods and compositions for cementing, especially drilling fluids that comprise zeolite and a carrier fluid, and cementing compositions made with such drilling fluids.
    Type: Application
    Filed: November 9, 2005
    Publication date: May 25, 2006
    Inventors: Karen Luke, Russell Fitzgerald, Frank Zamora
  • Publication number: 20060081373
    Abstract: A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 20, 2006
    Inventors: Ashok Santra, B. Reddy, Russell Fitzgerald