Patents Assigned to Merip Oil Tools International S.A.
  • Cell for testing the sealing quality of an oil-well safety-valve, a testing process and valve for use therein
    Patent number: 4771633
    Abstract: A cell for testing the sealing of an oil-well safety valve with a tubular valve body comprising at its lower part a balancing gate (13) and a shutter (11), the test cell including a tubular enclosure (22) designed to be fixed around the lower valve part by a fastening ring (212) and keys (213, 214), a first conduit (209) associated with seals (205, 206) and capable of being pressurized for testing the sealing of the gate (13), and a second conduit (211) capable of being pressurized for separately testing the sealing of the shutter (11).
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: September 20, 1988
    Assignee: Merip Oil Tools International S.A.
    Inventor: Jean-Luc Jacob