Patents by Inventor Elmer E. Clear

Elmer E. Clear 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).

  • Aqueous gels
    Patent number: 4451389
    Abstract: Carboxymethylhydroxyethyl cellulose in aqueous brine solutions is gelled by the addition of an alkaline earth metal hydroxide such as calcium hydroxide. The gelled compositions have utility as water diversion agents, pusher fluids, fracturing fluids, drilling muds, work-over fluids, and completion fluids.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: May 29, 1984
    Assignee: Phillips Petroleum Company
    Inventor: Elmer E. Clear
  • Method using lost circulation material for sealing permeable formations
    Patent number: 4369844
    Abstract: A composition of matter and a method of making is provided for preparing slurries to seal permeable earth formations encountered in the drilling of wells. The composition of matter comprises finely divided paper, diatomaceous earth, and in a further embodiment, lime. Slurries of the composition of matter can be prepared using fresh water or salt water to form a water-based lost circulation fluid, or using oil to form an oil-based lost circulation fluid. A slug of the slurry is spotted at the locus of the permeable formation and defluidized to form a formation seal on which a mud sheath is then deposited.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: January 25, 1983
    Assignee: Phillips Petroleum Company
    Inventor: Elmer E. Clear
  • Methods of using aqueous gels
    Patent number: 4321968
    Abstract: Carboxymethylhydroxyethyl cellulose in aqueous brine solutions is gelled by the addition of an alkaline earth metal hydroxide such as calcium hydroxide. The gelled compositions have utility as water diversion agents, pusher fluids, fracturing fluids, drilling muds, work-over fluids, and completion fluids.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: March 30, 1982
    Assignee: Phillips Petroleum Company
    Inventor: Elmer E. Clear
  • Lost circulation material for sealing permeable formations
    Patent number: 4289632
    Abstract: A composition of matter and a method of making is provided for preparing slurries to seal permeable earth formations encountered in the drilling of wells. The composition of matter comprises finely divided paper, diatomaceous earth, and in a further embodiment, lime. Slurries of the composition of matter can be prepared using fresh water or salt water to form a water-based lost circulation fluid, or using oil to form an oil-based lost circulation fluid. A slug of the slurry is spotted at the locus of the permeable formation and defluidized to form a formation seal on which a mud sheath is then deposited.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: September 15, 1981
    Assignee: Phillips Petroleum Company
    Inventor: Elmer E. Clear