Patents by Inventor Brent Neal MARSH

Brent Neal MARSH 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).

  • Apparatus for connecting a tool string to coiled tubing in downhole operations
    Patent number: 11371308
    Abstract: A connection between a downhole tool string and axially extending coiled tubing 102 includes a compression ring 120 that in use grips the coiled tubing sufficiently to enable a slip ring to be set and provides a satisfactory seal with the coiled tubing 102. The compression ring 120 is preferably of a relatively malleable metal and includes a skirt 142 of reduced thickness to be preferentially compressible and which in use is compressed against the coiled tubing 102.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 28, 2022
    Assignee: DOWNHOLE TOOLS INTERNATIONAL LIMITED
    Inventors: Brent Neal Marsh, Aaron Andrew Liam Robertson-Bee
  • APPARATUS FOR CONNECTING A TOOL STRING TO COILED TUBING IN DOWNHOLE OPERATIONS
    Publication number: 20190284895
    Abstract: A connection between a downhole tool string and axially extending coiled tubing 102 includes a compression ring 120 that in use grips the coiled tubing sufficiently to enable a slip ring to be set and provides a satisfactory seal with the coiled tubing 102. The compression ring 120 is preferably of a relatively malleable metal and includes a skirt 142 of reduced thickness to be preferentially compressible and which in use is compressed against the coiled tubing 102.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Inventors: Brent Neal MARSH, Aaron Andrew Liam ROBERTSON-BEE