Patents by Inventor Dennis E. Stover

Dennis E. Stover 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).

  • Method for the renovation of an aquifer
    Patent number: 4260193
    Abstract: The present invention relates to a method for the renovation of an aquifer subsequent to the solution mining of a mineral from the aquifer. More specifically, the invention relates to the utilization of spent ion exchange resin to remove chloride ions from the aquifer.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: April 7, 1981
    Assignee: Atlantic Richfield Company
    Inventor: Dennis E. Stover
  • Process for the solution mining of a mineral
    Patent number: 4258954
    Abstract: The present invention relates to an improved method for the solution mining of a mineral from a subterranean formation. More specifically, the invention relates to an improved method which enhances significantly the recovery of the mineral from a mature subterranean formation via solution mining. The improvement comprises increasing the flow rate of leachant into the formation by at least a factor of two.
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: March 31, 1981
    Assignee: Atlantic Richfield Company
    Inventor: Dennis E. Stover
  • Process for the reduction of competitive oxidant consuming reactions in the solution mining of a mineral
    Patent number: 4223948
    Abstract: The present invention relates to an improved method for the solution mining of a mineral from a subterranean formation. More specifically, the invention relates to an improved method which enhances significantly the recovery of the mineral from a subterranean formation via solution mining by reducing the oxidant consuming reactions which compete with the mineral for the oxidant injected therein.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: September 23, 1980
    Assignee: Atlantic Richfield Company
    Inventor: Dennis E. Stover
  • Method for locating the remaining recoverable mineral reserves during solution mining
    Patent number: 4129334
    Abstract: The present invention relates to a method for the solution mining of a mineral from a subterranean formation. More specifically, the invention relates to a method which enhances significantly the recovery of a mineral from a subterranean formation via solution mining utilizing an oxidant and leach solution with an injection and production well. The method comprises ceasing oxidant injection via the injection well and measuring the change in mineral concentration in the pregnant solution recovered via the production well.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: December 12, 1978
    Assignees: Atlantic Richfield Company, NM Uranium, Inc., The United States Steel Corporation
    Inventor: Dennis E. Stover
  • Method for the restoration of an underground reservoir
    Patent number: 4108722
    Abstract: The present invention relates to a method for the restoring of an underground reservoir subsequent to the solution mining of a mineral from a subterranean formation. More specifically, the invention relates to the introduction of a sulfate reducing bacteria into a subterranean formation to decrease the total dissolved solids level of the reservoir present therein.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: August 22, 1978
    Assignee: Atlantic Richfield Company
    Inventor: Dennis E. Stover
  • Method for the solution mining of a mineral
    Patent number: 4083603
    Abstract: The present invention relates to an improved method for the solution mining of a mineral from a subterranean formation. More specifically, the invention relates to an improved method which enhances significantly the recovery of a mineral from a subterranean formation via solution mining. The improvement comprises injecting oxidant into said formation via a production well simultaneously with the injection of solvent and oxident into said formation via an injection well for a finite period of time and subsequently returning the system to its initial operating mode.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: April 11, 1978
    Assignees: Atlantic Richfield Company, NM Uranium, Inc., United States Steel Corporation
    Inventor: Dennis E. Stover