Patents by Inventor Wilburn J. Butler

Wilburn J. Butler 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).

  • Storage or disposal cavern leak detection and loss prevention
    Patent number: 4474053
    Abstract: An environmentally acceptable gas is provided, under pressure, in the annulus of a casing arrangement which connects a wellhead to an underground storage zone containing stored product. Monitoring of the gas permits detection of leaks that might occur through casing leakage to an unsealed overburden. Leak detection and product loss prevention can be conducted without deleterious environmental impact.
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: October 2, 1984
    Assignee: Diamond Shamrock Chemicals Company
    Inventor: Wilburn J. Butler