Patents by Inventor Keith Lant

Keith Lant 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).

  • Method of measuring shear bond strength of cement
    Patent number: 9228993
    Abstract: An apparatus for determining shear bond strength of a cement to be set within a wellbore penetrating a subterranean formation consists of a housing, a vertical rod which extends from the uppermost portion of the housing through the lowermost portion of the housing, a base plate for positioning onto the bottom of the housing and for supporting the lowermost portion of the vertical rod, and a test plate for positioning onto the top of the housing through which the uppermost portion of the vertical rod extends. The apparatus may further contain a push rod. Shear bond strength is determined by introducing into the housing a sample core of the formation prior to introduction of a slurry containing the cement. The force required to break the bond between the vertical rod and the set cement may be used to determine the shear strength between the casing within the wellbore and the set cement when the cement is hardened within the wellbore.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: January 5, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Joseph Michael Shine, Jr., Virgilio C. Go Boncan, Robert Martin, Keith Lant, Charles C. Buford, Jr.
  • APPARATUS FOR MEASURING SHEAR BOND STRENGTH OF SET CEMENT AND METHOD OF USING SAME
    Publication number: 20140174192
    Abstract: An apparatus for determining shear bond strength of a cement to be set within a wellbore penetrating a subterranean formation consists of a housing, a vertical rod which extends from the uppermost portion of the housing through the lowermost portion of the housing, a base plate for positioning onto the bottom of the housing and for supporting the lowermost portion of the vertical rod, and a test plate for positioning onto the top of the housing through which the uppermost portion of the vertical rod extends. The apparatus may further contain a push rod. Shear bond strength is determined by introducing into the housing a sample core of the formation prior to introduction of a slurry containing the cement. The force required to break the bond between the vertical rod and the set cement may be used to determine the shear strength between the casing within the wellbore and the set cement when the cement is hardened within the wellbore.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Joseph Michael Shine, JR., Virgilio C. Go Boncan, Robert Martin, Keith Lant, Charles C. Buford, JR.