Patents by Inventor Brad Clarkson

Brad Clarkson 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: 9194222
    Abstract: Systems and methods for improved propped fracture geometry for high permeability reservoirs are provided. In one embodiment, a method of determining a pad volume and proppant volume for fracturing a subterranean formation is provided comprising selecting a proppant volume for placement in a fracture to be created in a subterranean formation; determining a desired fracture geometry for the fracture; calculating a pad volume sufficient to create the desired fracture geometry in the subterranean formation at a lower fluid efficiency value; calculating a fracture length that would result from injecting the pad volume into the subterranean formation at an upper fluid efficiency value; calculating a fracture width that corresponds to the calculated fracture length; and calculating a proppant volume sufficient to fill a fracture having the calculated length and width.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: November 24, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Brad A. Clarkson, Harvey J. Fitzpatrick
  • Publication number: 20120267104
    Abstract: Systems and methods for improved propped fracture geometry for high permeability reservoirs are provided. In one embodiment, a method of determining a pad volume and proppant volume for fracturing a subterranean formation is provided comprising selecting a proppant volume for placement in a fracture to be created in a subterranean formation; determining a desired fracture geometry for the fracture; calculating a pad volume sufficient to create the desired fracture geometry in the subterranean formation at a lower fluid efficiency value; calculating a fracture length that would result from injecting the pad volume into the subterranean formation at an upper fluid efficiency value; calculating a fracture width that corresponds to the calculated fracture length; and calculating a proppant volume sufficient to fill a fracture having the calculated length and width.
    Type: Application
    Filed: April 19, 2011
    Publication date: October 25, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brad A. Clarkson, Harvey J. Fitzpatrick
  • Patent number: 8267173
    Abstract: An open hole completion apparatus (80) includes an outer tubing string (56) disposed in an open hole portion of a wellbore (32). The outer tubing string (56) includes a sand control screen (102) and a shrouded closing sleeve (91). An inner tubing string (84) is at least partially disposed within the outer tubing string (56). The inner tubing string (84) includes a crossover assembly (114). The shrouded closing sleeve (91) has a shroud (92) that creates a channel (98) with a portion of the outer tubing string (56) by extending over a fluid port (94) of the shrouded closing sleeve (91) toward the sand control screen (102), such that when a treatment fluid is pumped through the inner tubing string (84), the crossover assembly (114) and the fluid port (94), the treatment fluid is injected into the wellbore (32) remote from the fluid port (94).
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: September 18, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Brad A. Clarkson, Ronnie Burger, Bruce Techentien
  • Publication number: 20100294495
    Abstract: An open hole completion apparatus (80) includes an outer tubing string (56) disposed in an open hole portion of a wellbore (32). The outer tubing string (56) includes a sand control screen (102) and a shrouded closing sleeve (91). An inner tubing string (84) is at least partially disposed within the outer tubing string (56). The inner tubing string (84) includes a crossover assembly (114). The shrouded closing sleeve (91) has a shroud (92) that creates a channel (98) with a portion of the outer tubing string (56) by extending over a fluid port (94) of the shrouded closing sleeve (91) toward the sand control screen (102), such that when a treatment fluid is pumped through the inner tubing string (84), the crossover assembly (114) and the fluid port (94), the treatment fluid is injected into the wellbore (32) remote from the fluid port (94).
    Type: Application
    Filed: May 20, 2009
    Publication date: November 25, 2010
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Brad A. Clarkson, Ronnie Burger, Bruce Techentien
  • Publication number: 20080002528
    Abstract: A display assembly includes a display selectively displaying human-readable indicia on a face thereof and a cover disposed over the display. The cover has a homogeneous surface over the entire face of the display. The display assembly is controllable between an inactive state and an active state. In the inactive state, the face of the display is not viewable through the cover, and in the active state, the indicia are viewable through the cover.
    Type: Application
    Filed: May 22, 2007
    Publication date: January 3, 2008
    Applicant: Nike, Inc.
    Inventors: Bo Andren, Brad Clarkson