Tie Back Seal Nipple
Tie Back Seal Nipple
Description & Application:
Tieback liners provide a new casing string to reinforce intermediate casing damaged by drilling or corrosion, protect a weakened casing string from shut-in or excessive production pressure, or isolate a leaking liner top. A typical tieback liner system consists of a Tieback Seal Nipple (TBN), Orifice Float Collar (OFC), and the existing liner Polished Bore Receptacle (PBR). The TBN assembly includes a locator, seal mandrel, seals or seal units, and a half-mule shoe bottom. It is run as part of the tieback string and landed into the existing PBR.
Features And Advantages
- Body threaded to match tieback liner or casing connections.
- Multiple seal material options available to ensure compatibility with anticipated well conditions.
- Mule shoe configuration facilitates stabbing and re-entry using wireline equipment.
- Cementing ports provided to support effective cementing operations.
Options
- Standard Lengths: 10 ft, 15 ft, 20 ft, and 25 ft
- Compatibility: Seal assembly can be used in conjunction with a liner-top tieback packer.
Technical Parameter
- Pressure Rating: up to 10,000 psi (maximum).
- Temperature rating: up to 600°F
Material
- L-80, P110, 13% Cr 1 Moly, INCONEL-825, AISI 4140 80/110 KSI
Elastomer
- Nitrile, Viton, HNBR, Aflas, Silicon
Size
- Up to liner 3-1/2 x 5 in to 16 x 20.0 in
| TECH UNIT No. | 016 |
|---|---|
| MODEL | VE-TBN |
