Bottom Set Tie Back Packer - DEW GmbH
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Bottom Set Tie Back Packer
The Bottom Set Tie Back Packer is used as a tie back system to provide optimal sealing above the Liner Hanger system in the event of a leak. It consists of a high performance elastomeric packer element and several seal assemblies. The packer element is an elastomeric sheath which is designed to resist high pressures combined with high temperatures and high circulation. The seal assembly has special Molyglass chevron rings and an o-ring in the center to ensure high seal integrity. Its material can be changed to meet all reservoir demands.
After setting the Liner Hanger system and finishing the cementing job the seal assemblies of the Bottom Set Tie Back Packer are stabbed into the top PBR. The Packer element is located above the PBR and is activated by a Packer Actuator or by the Setting Tool, in order to seal the casing annulus. In addition, the Bottom Set Tie Back Packer can be equipped with a hold down anchor system above the packer element to ensure minimum packer movement.
Features/Benefits:
- Available for all PBR sizes and lengths
- Provides sealing between the middle – lower completion and the upper completion
- Standard packing: PTFE and FKM (Viton™) (special sealing on request according to well condition)
- The half mule shoe provides easy stabbing into the PBR even in horizontal wells
- Standard HNBR packing element cover material compatible for most wellbore requirements (other materials on request)
- Hold down slips available to avoid upward movement and element decompression
- Set mechanically by slack off weight with the Packer Actuator or the Setting Tool.
- Mechanical lock avoid premature setting during RIH-operations