Seal Bore
Seal Bore also known as PBR (Polished Bore Receptacle) is designed to accept the seal assembly. Seal bores have varied applications in liner top, permanent packer or completion string for landing a production tubing seal assembly or tie back string. This design provides the benefit of achieving containment of flow within the tubing without any leak and allowing tubing movement due to thermal expansion.
It works as an expansion joint when extreme tubing movements are expected and can also be used as separation tool, facilitating removal of production tubing. Length of seal bore assembly depends of application requirement. Seal bores allowing even 30 ft stroke are available. Seal bores are manufactured of high quality material with tight tolerance and are polished before running seal assembly in the receptacle.