Patents by Inventor Robert M. Hinkel

Robert M. Hinkel 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).

  • Coiled tubing drilling apparatus and method
    Patent number: 5291956
    Abstract: A low-cost method drilling and completing wells attaches a non-rotating jet drilling tool to coiled tubing. After drilling, the tubing portion outside the well is cut and the remaining tubing becomes the liner or casing for the well. By also using a residual bend remover, centralizers, and injecting a thermal cement slurry, very low cost steam injector wells can be drilled and completed.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: March 8, 1994
    Assignee: Union Oil Company of California
    Inventors: Mark D. Mueller, Julio M. Quintana, Robert M. Hinkel