Shield PCRW Wireline-Set Cement Retainer

The Model PCRW Wireline Set Sleeve Valve Cement Retainers are used for secondary cementing operations. These drillable retainers set securely in all standard hardness casing. A ratchet lock ring stores the setting force in the retainer. The one-piece packing element and metal back-up rings combine for a superior seal. The case-hardened, one-piece slips virtually eliminate premature setting, yet can be easily drilled out. Set with electric line or hydraulic setting tools. They are available for 4-1/2” through 20” casing.

What a cement retainer does

Cement retainers are drillable tools used for secondary cementing operations. They set securely in casing, allow the tubing to be tested before squeezing, hold the final squeeze pressure and keep hydrostatic pressure off the zone just squeezed. The Shield PCRW is the wireline-set version; the Shield PCRM mechanical-set cement retainer is set on tubing.

How the Shield PCRW works

A ratchet lock ring stores the setting force in the retainer, and the one-piece packing element and metal back-up rings form the seal. Picking up closes the sleeve valve so the tubing can be tested before squeezing. When the stinger is picked up or removed, the valve closes automatically and holds the squeeze under final pressure as cement is circulated out. After the job, the retainer can be drilled out.

Shield PCRW – Special Features

• Sets securely in any hardness casing
• Ratchet lock rings secure dynamic setting force for faster, safer run-in
• One-piece packing element and rocker-action metal back-up rings combine for a superior seal
• Can be converted to a PCRM Mechanical Set Cement Retainer or bridge plug
• Electric-line set – can be set directly with Baker wireline setting tools
• Shear studs are Baker style and connect directly to the Adjuster Sub
• Tests tubing – tubing can be tested before squeezing by picking up to close the valve and applying pressure
• Holds final squeeze pressure – automatic closing of the valve when picking up, or removal of the stinger, ensures the squeeze is held under final pressure as cement is circulated out
• Isolates the squeeze from hydrostatic pressure – keeping hydrostatic pressure off the zone just squeezed is important, especially for cementing low-fluid-level wells in batch-squeeze operations