Innovative Downhole Tools For The Oil & Gas Industry.
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Tubing Filler Sub.
The Tubing Filler Sub is designed to be run above a plug, or other piece of blanked off completion equipment, allowing the tubing to fill automatically when running in hole. This is achieved with differential pressure which causes the blanking sleeve to shift off seat and uncover the flow ports allowing communication between the annulus and tubing. Once the barrier device has been run to the required depth, the Tubing Filler Sub is closed by building tubing pressure, shearing the sleeve stop screws and allowing the blanking sleeve to seal off the flow ports. The blanking sleeve is positively locked in the closed position with a snap ring.
The simple design of the Tubing Filler Sub ensures reliable operation. Close tolerances between the blanking sleeve and the flow ports negate the need for an elastomeric seal. A shifting profile is included in the ID of the blanking sleeve so that it can be mechanically shifted if required.
In addition to its tubing filling function, the sub may be used to circulate the tubing contents to diesel or similar.
Features
- Simple, robust design.
- Valve automatically opens when subjected to differential pressure.
- Blanking sleeve positively locked shut after operation.
- Activation pressure can be adjusted to suit application.
- Shifting profile provided to allow
manual override.
| Technical Specifications. | |
| Tool Size | 5.500" |
| End Connections | To suit 5-1/2 Tubing Connections |
| Material | Customer Specified |
| OD | 6.25" |
| ID | 4.40" |
| Length | 33.0" |
| Pressure Rating | 5,000 psi |
| Max Operating Temp | 150°C |
| Operating Window | Activation pressure to be specified by customer. |
Other sizes and ratings are available on request.
For more information please click here to contact one of our sales team.