Patents by Inventor Richard F. Stevens, Jr.

Richard F. Stevens, Jr. 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).

  • Light-weight proppant from heat-treated pumice
    Patent number: 8796188
    Abstract: A process for forming a strong, low-density proppant, which process includes heating pumice particulates, or shaped agglomerates thereof, so as to form heat-treated pumice particulates, or heat-treated, shaped pumice agglomerates, having an apparent density of 2.4 or less and a crush resistance of no more than 10% fines at 4000 psi. Proppants, and well treatment fluids comprising proppants, meeting these characteristics and processes for treating subterranean formations using fluids which include such proppants are also described.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: August 5, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Thomas J. Pisklak, Richard F. Stevens, Jr., Qi Qu, Elizabeth G. Morillo
  • LIGHT-WEIGHT PROPPANT FROM HEAT-TREATED PUMICE
    Publication number: 20110118155
    Abstract: A process for forming a strong, low-density proppant, which process includes heating pumice particulates, or shaped agglomerates thereof, so as to form heat-treated pumice particulates, or heat-treated, shaped pumice agglomerates, having an apparent density of 2.4 or less and a crush resistance of no more than 10% fines at 4000 psi. Proppants, and well treatment fluids comprising proppants, meeting these characteristics and processes for treating subterranean formations using fluids which include such proppants are also described.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 19, 2011
    Applicant: BJ SERVICES COMPANY
    Inventors: Thomas J. Pisklak, Richard F. Stevens, JR., Qi Qu, Elizabeth G. Morillo
  • Method of using solubilized transition metal oxides in well operations
    Patent number: 7837931
    Abstract: A corrosion inhibitor package containing an acetylenic amine or acetylenic alcohol enables a sulfur-free method for protecting metal tubulars and equipment. The package has particular applicability in the protection of carbon steel tubulars in high density brines at elevated temperatures. The corrosion inhibitor package may contain a transition metal oxide as a corrosion inhibitor intensifier.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: November 23, 2010
    Assignee: BJ Services Company LLC
    Inventors: Richard F. Stevens, Jr., Mingjie Ke, Qi Qu
  • Method for treating a subterranean formation with water-in-oil emulsion
    Patent number: 7712533
    Abstract: The permeability of a subterranean formation is improved by introducing into the formation a water-in-oil emulsion. Unwanted particulates deposited in the formation during the production of oil are dissolved or loosened by the outer phase of the emulsion and dispersed in the aqueous phase.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: May 11, 2010
    Assignee: BJ Services Company
    Inventors: Qi Qu, Richard F. Stevens, Jr., David Alleman
  • Compositions for Treating a Well Penetrating a Subterranean Formation and Uses Thereof
    Publication number: 20090075846
    Abstract: Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of particular applicability in the displacement of oil base drilling muds and/or residues from such muds from producing wells. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 19, 2009
    Applicant: BJ Services Company
    Inventors: Qi Qu, Richard F. Stevens, JR., David Alleman
  • Compositions for treating a well penetrating a subterranean formation and uses thereof
    Patent number: 7455111
    Abstract: Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of particular applicability in the displacement of oil base drilling muds and/or residues from such muds from producing wells. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: November 25, 2008
    Assignee: BJ Services Company
    Inventors: Qi Qu, Richard F. Stevens, Jr., David Alleman
  • Method for displacing oil base drilling muds and/or residues from oil base drilling mud using water-in-oil emulsion
    Patent number: 7188676
    Abstract: Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of particular applicability in the displacement of oil base drilling muds and/or residues from such muds from producing wells. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: March 13, 2007
    Assignee: BJ Services Company
    Inventors: Qi Qu, Richard F. Stevens, Jr., David Alleman