Patents by Inventor John A. Toups

John A. Toups 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).

  • Hydrophobe associative polymers and compositions and methods employing them
    Patent number: 7056868
    Abstract: Water soluble associative polymers and compositions comprising them together with alkali metal salts of carboxylic acid are disclosed. Methods comprise introducing into a wellbore a fluid comprising such associative polymers and alkali metal salts of carboxylic acid, e.g., cesium formate. Disclosed water soluble associative polymers have functionality including at least sulfonate groups, carboxylate groups and hydrophobes associative with one another in a saturated aqueous solution of an alkali metal salt of a carboxylic acid.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: June 6, 2006
    Assignees: Cabot Corporation, Fritz Industries, Inc.
    Inventors: William J. Benton, Edward E. Miller, Neil Magri, John Toups
  • Drilling fluids containing an alkali metal formate
    Patent number: 6818595
    Abstract: A drilling fluid or mud is described wherein the drilling fluid contains at least one alkali metal formate or monovalent carboxylic acid salt. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The drilling fluids of the present invention can contain other conventional ingredients. The present invention permits drilling fluids to be essentially solids free due to the use of the alkali metal formate.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 16, 2004
    Assignee: Cabot Specialty Fluids, Inc.
    Inventors: William J. Benton, John A. Toups, U. Roger Weems
  • Drilling fluids containing an alkali metal formate
    Publication number: 20030162669
    Abstract: A drilling fluid or mud is described wherein the drilling fluid contains at least one alkali metal formate or monovalent carboxylic acid salt. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The drilling fluids of the present invention can contain other conventional ingredients. The present invention permits drilling fluids to be essentially solids free due to the use of the alkali metal formate.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 28, 2003
    Inventors: William J. Benton, John A. Toups, U. Roger Weems
  • Hydrophobe associative polymers and compositions and methods employing them
    Publication number: 20030114317
    Abstract: Water soluble associative polymers and compositions comprising them together with alkali metal salts of carboxylic acid are disclosed. Methods comprise introducing into a wellbore a fluid comprising such associative polymers and alkali metal salts of carboxylic acid, e.g., cesium formate. Disclosed water soluble associative polymers have functionality including at least sulfonate groups, carboxylate groups and hydrophobes associative with one another in a saturated aqueous solution of an alkali metal salt of a carboxylic acid.
    Type: Application
    Filed: July 30, 2001
    Publication date: June 19, 2003
    Inventors: William J. Benton, Edward E. Miller, Neil Magri, John Toups
  • Environmentally safe annular fluid
    Patent number: 5607901
    Abstract: An environmentally acceptable, thermally insulating annular fluid comprised of a liquid which is non-aqueous, non-corrosive, and thermally insulating, a clay gellant, and a clay dispersant. A preferred packer fluid includes an ester originated from a vegetable or animal oil as at least a major portion of the liquid phase.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: March 4, 1997
    Assignee: BP Exploration & Oil, Inc.
    Inventors: John A. Toups, Jr., David B. Young, Majeed H. Yousif, B. C. Smolen, Jonathan Holt