Locator Type:
This unit provides positive control of the sleeve valve and seals the tubing to the retainer during pressuring operations when the need for anchoring is not warranted.The tubing can be tested by stinging into the retainer, then raising the tubing approximately 4″ at the retainer, which allows the valve to be closed and the stinger to remain sealed off in the retainer bore. Pressure can then be applied to the tubing string for testing.To remove the stinger from the retainer, simply raise the tubing to free the stinger from the retainer bore.A centralizing unit should be run above to assure the seal nipple stings in accurately.
Latching Type:
This unit provides positive control of the sleeve valve and seals the tubing to the retainer during pressuring operations while effectively anchoring the tubing in the retainer.The tubing can be tested by stinging into the retainer, then raising the tubing approximately 4″ at the retainer, which allows the valve to be closed and the stinger to remain sealed off in the retainer bore. Pressure can then be applied to the tubing string for testing.Release is accomplished by taking an upward pull of approximately 8,000 lbs. which will collapse the snap latch and free the seal unit from the retainer. After repeated usage the snap-in and snap-out values will decrease to 2,500 lbs. snap-in and 5,000 lbs. snap-out force.A centralizing unit should be run above to assure the seal nipple stings in accurately.
