Patents by Inventor Keith H. Hollenbeck

Keith H. Hollenbeck 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 dissolving organic filter cake
    Patent number: 4809783
    Abstract: A method of increasing the production of hydrocarbons from a subterranean formation wherein an undesirable filter cake is present, resulting from the introduction of gelled polysaccharide containing fluids into the formation, comprising contacting the formation with an effective amount of a treatment fluid comprising a soluble source of fluoride ions present in an amount sufficient to provide a molar concentration of from about 0.01 about 0.5, having a pH in the range of from about 2 to about 4, whereby at least a portion of the filter cake is caused to dissolve.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: March 7, 1989
    Assignee: Halliburton Services
    Inventors: Keith H. Hollenbeck, Lewis R. Norman