Patents by Inventor John C. McClellan

John C. McClellan 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: 5469925
    Abstract: A tube turning tool allows laterals to be drilled and completed without the need for articulated bending tools, underreaming, high fluid pressure, or a separate running of completion tools. The turning tool uses a rigid bent pipe section capable of being run downhole within many standard diameter well tubulars, supported in a desired position, and bending coil tubing at an ultra short radius of curvature as it is being run into the wellbore so that it can jet drill a lateral. After jet drilling a lateral, the lateral can also be completed using the coil tubing, e.g., gravel packed by pumping a slurry through the coil tubing while withdrawing the tubing from the lateral.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: November 28, 1995
    Assignee: Union Oil Company of California
    Inventors: Mark D. Mueller, John C. McClellan