Patents Assigned to Deepwater Oil Services Limited of Unit Ten
  • Cutting and recovery tool
    Patent number: 4703802
    Abstract: A cutting and recovery tool for a well-head, having a housing which is adapted to engage with a side wall of the well-head to lock them together, and a mandrel extending through the housing and rotatable relative to the housing and adapted to carry a radially-acting cutter which severs the well-head below the area of engagement of the housing. This allows the well-head to be severed and withdrawn in a single operation.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: November 3, 1987
    Assignee: Deepwater Oil Services Limited of Unit Ten
    Inventors: Leonard B. Bryan, Geoffrey O. Rouse, Hector McDonald