Patents by Inventor Porter Underwood

Porter Underwood 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).

  • Well perforating and fracturing
    Patent number: 7703525
    Abstract: A system and method for perforating and fracturing enables sealing device on a working string to be actuated to substantially block passage of fluids through the wellbore. Without removing the working string from the wellbore, the working string is released from the sealing device, the wellbore is perforated, and the wellbore pressurized up-hole of the sealing device to fracture the wellbore.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: April 27, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gary A. Wilcox, Porter Underwood, Scott Harvey
  • Well perforating and fractuing
    Publication number: 20080128132
    Abstract: A system and method for perforating and fracturing enables sealing device on a working string to be actuated to substantially block passage of fluids through the wellbore. Without removing the working string from the wellbore, the working string is released from the sealing device, the wellbore is perforated, and the wellbore pressurized up-hole of the sealing device to fracture the wellbore.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 5, 2008
    Inventors: Gary A. Wilcox, Porter Underwood, Scott Harvey
  • Limited entry multiple fracture and frac-pack placement in liner completions using liner fracturing tool
    Patent number: 7287592
    Abstract: The present invention is directed to a method and apparatus for fracturing a subterranean formation which use a liner fracturing tool. The liner fracturing tool consists of a liner, with at least one jet extending through the liner. During fracturing operations, fracturing fluid is pressured through the jet to form microfractures. Fractures are formed by the stagnation pressure of the fracturing fluid. The jets may be mounted within a jet holder that may be dissolved following fracturing operations to allow reservoir hydrocarbons to flow into the liner more readily.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: October 30, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jim B. Surjaatmadja, Billy W. McDaniel, Porter Underwood
  • Limited entry multiple fracture and frac-pack placement in liner completions using liner fracturing tool
    Publication number: 20050274522
    Abstract: The present invention is directed to a method and apparatus for fracturing a subterranean formation which use a liner fracturing tool. The liner fracturing tool consists of a liner, with at least one jet extending through the liner. During fracturing operations, fracturing fluid is pressured through the jet to form microfractures. Fractures are formed by the stagnation pressure of the fracturing fluid. The jets may be mounted within a jet holder that may be dissolved following fracturing operations to allow reservoir hydrocarbons to flow into the liner more readily.
    Type: Application
    Filed: June 11, 2004
    Publication date: December 15, 2005
    Inventors: Jim Surjaatmadja, Billy McDaniel, Porter Underwood