Key Components of Packers

Slips:

The slip is a wedge-shaped device with wickers (or teeth) on its face, which penetrate and grip the casing wall when the packer is set. There are different types of slips designs are available in packers like dovetail slips, rocker type slips bidirectional slips depending upon packer assembly requirements.

Cone:

The cone is beveled to match the back of the slip and forms a ramp that drives the slip outward and into the casing wall when setting force is applied to the packer.

Packing-element system

Packing element is the most important part of any packer and it provides the primary sealing purpose. Once the slips have anchored into the casing wall, additional applied setting force energizes the packing-element system and creates a seal between the packer body and the inside diameter of the casing. The primarily used element materials are NBR, HNBR or HSN, Viton, AFLAS, EPDM etc. Most popular element system are permanent single element system with expansion ring, three piece element system with spacer ring, ECNER element system, Spring loaded element system, Fold back ring element system.

Lock ring:

Lock ring play a vital role in packer’s function. The purpose of a lock ring is to transmit axial loads and allow unidirectional motion of packer components. The lock ring is installed into the lock ring housing and both move together over the lock ring mandrel. All setting force generated due to tubing pressure is locked into packer by lock ring.

The reliability of Vigor's packers has been proven in various oil fields around the world and has been recognized by customers.If you are interested in Vigor's packer or other tools for oil and gas downholes, please do not hesitate to contact us.