Patents by Inventor James A. Hazel

James A. Hazel 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).

  • Patent number: 4512398
    Abstract: A pump-out plug catcher is disclosed for use within a wellbore to contain a released pump-out plug. The catcher includes a body, pump-out plug retention devices, and an extension member which extends into the body. The body is provided with an axial bore extending therethrough and an enlarged hollow portion in communication with the bore. Pump-out plug retention devices are provided in an upper portion of the body and retain a pump-out plug across the bore until subjected to a predetermined pressure. The extension member is provided with an axial bore extending therethrough which is of a diameter less than pump-out plug. The released pump-out plug catcher apparatus is lowered into a wellbore and set below a retrievable packer assembly. A pump-out plug is connected to the catcher and fluid is introduced down the tubing to force the pump-out plug from its position.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: April 23, 1985
    Assignee: Standard Oil Company
    Inventor: James A. Hazel