Patents by Inventor George B. Holman, Jr.

George B. Holman, 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).

  • Low density spacer fluid
    Patent number: 4530402
    Abstract: A method of completing a wellbore is disclosed wherein a low density spacer fluid is introduced into a wellbore and then a completion fluid, such as a cement slurry, to displace the spacer fluid. The spacer fluid comprises a nonagglomerating carrier fluid, such as water or the like, and discrete dispersible density reducing bodies, such as hollow spheres. The density reducing bodies aid in reducing the hydrostatic head of the spacer fluid, completion fluid, and existing wellbore fluids to prevent the hydrostatic head of such fluids from exceeding the fracture gradient of a highly porous, easily fractured formation.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: July 23, 1985
    Assignee: Standard Oil Company
    Inventors: Robert C. Smith, George B. Holman, Jr.