Patents by Inventor Timothy L. Quirk

Timothy L. Quirk 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: 7048054
    Abstract: Cement comprising barite, a process for preparing such cement, and methods of cementing in a subterranean formation or well bore using such cement are provided. The cement is prepared by introducing coarse barite to the cement, the course barite comprising particles having a particle size primarily greater than about 125 microns. The presence of the coarse barite in the cement causes the cement to have a relatively low viscosity. Introducing the barite to the cement also increases the density of the cement, thus rendering the cement capable of controlling high hydrostatic pressures in a well bore.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: May 23, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James F. Heathman, Timothy L. Quirk
  • Patent number: 6892814
    Abstract: Cement comprising barite, a process for preparing such cement, and methods of cementing in a subterranean formation or well bore using such cement are provided. The cement is prepared by introducing coarse barite to the cement, the course barite comprising particles having a particle size primarily greater than about 125 microns. Preferably, 90 percent of the barite particles is greater than about 125 microns in size. The presence of the coarse barite in the cement causes the cement to have a relatively low viscosity. Introducing the barite to the cement also increases the density of the cement, thus rendering the cement capable of controlling high hydrostatic pressures in a well bore.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: May 17, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James F. Heathman, Timothy L. Quirk
  • Publication number: 20040118561
    Abstract: Cement comprising barite, a process for preparing such cement, and methods of cementing in a subterranean formation or well bore using such cement are provided. The cement is prepared by introducing coarse barite to the cement, the course barite comprising particles having a particle size primarily greater than about 125 microns. Preferably, 90 percent of the barite particles is greater than about 125 microns in size. The presence of the coarse barite in the cement causes the cement to have a relatively low viscosity. Introducing the barite to the cement also increases the density of the cement, thus rendering the cement capable of controlling high hydrostatic pressures in a well bore.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: James F. Heathman, Timothy L. Quirk