Patents by Inventor John Burkhalter

John Burkhalter 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).

  • Patent number: 5265247
    Abstract: A method for maintaining in a computer memory laboratory test records for a plurality of projects, particularly adapted to projects for cementing oil or gas wells, are disclosed. Records of data identifying the plurality of projects and records of test data for the plurality of projects are entered within the computer memory. Data from selected records are compiled in a predetermined report format. More particularly disclosed is a method of designing a cement job for an oil or gas well. This includes receiving into a computer, programmed with records of data in predetermined categories for a plurality of previous cement jobs, a field of search for a selected predetermined category of data pertinent to a cement job being designed. Automatic searching within the computer finds records which contain data within the field of search. These are displayed. Design data are selected in response to the displayed records and the design data are stored in the computer in a record for the cement job being designed.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: November 23, 1993
    Assignee: Halliburton Company
    Inventors: Lynn K. Wienck, Gordon A. Turner, Jim B. Surjaatmadja, Allen F. Strange, John Burkhalter, Stephen R. Henry, Stephen W. Almond
  • Patent number: 5151131
    Abstract: Oil field cement liquid fluid loss control additives and methods of field preparing such additives prior to preparing a cement composition containing the additive are provided. The method of field preparing the liquid fluid loss control additive comprises admixing an organophilic clay suspending agent with a liquid hydrocarbon, combining a surfactant with the mixture and then combining at least one hydrophilic polymer with the mixture to form the additive.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 29, 1992
    Assignee: Halliburton Company
    Inventors: John Burkhalter, Jolinda K. Suson