Locator Seal Nipple
The Locator Seal Nipple is designed to seal the tubing string to the retainer, allowing the casing to be isolated from high pressure while testing or during pressure operations.
The tubing can be tested by circulating a test ball down the tubing. The ball will seat in the top of the seal nipple and provide positive shut-off to the tubing string. Pressure can then be applied to the tubing string.
After testing is completed the test ball can be reverse circulated out of the tubing string. After the ball is retrieved the job can be completed by lowering the tubing to sting into the retainer or by raising the tubing lo sting out of the retainer.
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Model “B” Seal Nipples
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.
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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 snapout 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.
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Bow Spring Centralizer for Cement Retainers
The Alpha Oil Tools Bow Spring Centralizer centralizes tubing string to accommodate cementing jobs through your Alpha Oil Tools Cement Retainer that has already been set by conventional method via wireline or by the Alpha Fury Hydraulic setting tool.
For one trip capability via hydraulic setting tool please inquire about the Alpha Oil Tools Full Hydraulic Setting Tool.
Features:
- Provides positive cementing control.
- Many parts are common to Model B Mechanical Setting Tool
- All sizes are common with Model B Mechanical Setting Tool
- Allows tubing torque to be transmitted to tools below.
