Patents by Inventor J. Bennett Clark

J. Bennett 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).

  • Injection of dextrins for subterranean microbial processes
    Patent number: 5368099
    Abstract: The use of a dextrin as the carbon source for achieving a complete nutrient medium capable of sustaining microbial activity in subterranean formations is disclosed.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: November 29, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Mary E. Davey, Diane Gevertz, Gary E. Jenneman, Scott T. Kellogg, Willis A. Wood, J. Bennett Clark
  • Injection of organic phosphates for subterranean microbial processes
    Patent number: 5360064
    Abstract: The present invention provides a process for sustaining microbial activity in subterranean formations which comprises introducing as a microbial nutrient, an organic phosphate, This process may include the sequential injection of sources of individual nutrient components which are deficient in said subterranean formation, whereby the injected phosphorus source is an organic phosphate.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 1, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Gary E. Jenneman, J. Bennett Clark
  • Injection of scale inhibitors for subterranean microbial processes
    Patent number: 5337820
    Abstract: A novel process for sustaining microbial activity in subterranean formations which comprises introducing as a microbial nutrient, a scale inhibitor. This process may include the sequential injection of sources of individual nutrient components which are deficient in said subterranean formation, whereby the injected phosphorus source is selected from the group consisting of an organic phosphate and an organic phosphonate.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: August 16, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Gary E. Jenneman, J. Bennett Clark
  • Utilization of phosphite salts as nutrients for subterranean microbial processes
    Patent number: 5327967
    Abstract: A novel process for sustaining microbial activity in subterranean formations which comprises introducing as a microbial nutrient, a phosphite salt. This process may include the sequential injection of sources of individual nutrient components which are deficient in said subterranean formation, whereby the injected phosphorus source is selected from the group consisting of a phosphite salt and a phosphorous acid.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: July 12, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Gary E. Jenneman, J. Bennett Clark
  • Oil recovery processes
    Patent number: 4610302
    Abstract: An enhanced oil recovery process comprising injecting into an oil-bearing formation a sacrificial agent to adsorb on and occupy active sites of the formation matrix and introducing into the formation microbial cells or agents which produce metabolic products in-situ thereby enhancing oil displacement from the formation.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: September 9, 1986
    Assignee: Phillips Petroleum Company
    Inventor: J. Bennett Clark