Patents Assigned to Agip Oil US L.L.C.
  • Stroke control tool for subterranean well hydraulic actuator assembly
    Patent number: 6269641
    Abstract: A stroke control tool for controlling the position of a subterranean well hydraulically actuated double acting piston and cylinder actuator assembly. The tool includes hydraulic fluid measuring means positioned adjacent the well and is connected to the actuator by relatively inelastic hydraulic lines so that the volume of fluid communicating between the measuring means and the actuator can accurately be measured for determining the position of the actuator.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 7, 2001
    Assignee: Agip Oil US L.L.C.
    Inventor: Timothy Lee Dean