Patents by Inventor Michael Dale Clark

Michael Dale Clark 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).

  • Methods of preventing well fracture proppant flow-back
    Patent number: 6116342
    Abstract: Improved methods of propping a fracture in a subterranean zone whereby the subsequent flow-back of the proppant is prevented are provided. The methods basically comprise the steps of placing proppant and a magnetized material in said fracture while maintaining the fracture open and then allowing the fracture to close on the proppant and magnetized material whereby the magnetized material clusters in voids and channels in the proppant bed formed.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: September 12, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael Dale Clark, Patrick L. Walker, Kirk Lynn Schreiner, Philip D. Nguyen