PACK-OFF ASSEMBLY

INTRODUCTION

1. Locator Tubing Seal Assembly

Locator Tubing Seal Assembly is the most basic sealing method of sealbore packers. It is run in the wellbore with production string. Its “locator” is set on the top of the packer, which is achieved by no-go shoulder itself. The locator of sealbore packer can be achieved by one or multi group seals, which make up the seal between packer and tubing. Tubing is ordinarily in the state of compress after locator tubing seal is set on the packer, which can compensate for the tubing distortion, but it is impossible and not necessary to provide enough downward weight, especially in deep deviated well. Under this condition, it is needed to increase the length of seal bore packer by using the seal bore extension.

2. Tubing Anchor Seal Assembly

Tubing Anchor Seal Assembly is run into the well with the production string. While locating , the anchor’s threaded latch is engaged into the thread correspondingly at the top of the packer. Once engaged, the anchor and tubing are securely locked in place. Any tubing contraction will cause a tensile load which applied to the tubing string. Ensure tensile forces development, which do not snap the tubing whenever Tubing Anchor Seal Assembly is used. To release the anchor, it must be rotated by right -hand 10 to 12 turns.

Note: Other specification products are available.