Patents Assigned to DOWNHOLE TOOLS INTERNATIONAL LIMITED
  • 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