Patents by Inventor Christopher J. Stephenson

Christopher J. Stephenson 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).

  • Lightweight methods and compositions for well treating
    Patent number: 6364018
    Abstract: Methods and compositions useful for hydraulic fracturing of subterranean formations that utilize relatively lightweight and/or substantially neutrally buoyant particles as particulate proppant material.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: April 2, 2002
    Assignee: BJ Services Company
    Inventors: Harold D. Brannon, Allan R. Rickards, Christopher J. Stephenson
  • Formation treatment method using deformable particles
    Patent number: 6330916
    Abstract: A subterranean formation is treated by injecting a blend of fracture proppant material and deformable particulate material into the formation. The deformable particulate material may combine with the fracture proppant material to increase fracture conductivity, reduce fines generation, and/or reduce proppant flowback. The fracture proppant material may be a material such as sand, and the deformable particulate material may be a material such as polystyrene divinylbenzene beads.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: December 18, 2001
    Assignee: BJ Services Company
    Inventors: Allan R. Rickards, Harold D. Brannon, Philip J. Rae, Gino A. DiLullo, Christopher J. Stephenson
  • Formation treatment method using deformable particles
    Patent number: 6059034
    Abstract: A subterranean formation is treated by injecting a blend of fracture proppant material and deformable particulate material into the formation. The deformable particulate material may combine with the fracture proppant material to increase fracture conductivity, reduce fines generation, and/or reduce proppant flowback. The fracture proppant material may be a material such as sand, and the deformable particulate material may be a material such as polystyrene divinylbenzene beads.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: May 9, 2000
    Assignee: BJ Services Company
    Inventors: Allan R. Rickards, Harold D. Brannon, Philip J. Rae, Gino A. DiLullo, Christopher J. Stephenson