About PWC® Service for Plugging of Wells

HydraWell are the inventors of PWC® (perf, wash and cement) and owns several patents regarding this technology. The PWC® method replaces section milling for annulus remediation in several well abandonment applications including, but not limited to;
P&A, Slot Recovery, Casing Shoe Repair, Annulus Pressure Remediation

The method is run as a 1-trip system where a perf device (high shot density TCP guns) is run below the PWC® assembly to the planned plug depth. Guns are fired to create access to annulus for the washing operation to commence. Fresh wash fluid is jetted into the annulus before the subsequent cement job is done, leaving a uniform 360-deg cement plug in the area.

This operation reduces the time to remediate a wellbore from 5-15 days with section milling down to 2 days with PWC®.



References and weblinks

HydraWell website

Technology readiness level (TRL) (According to API RP 17N)

0 1 2 3 4 5 6 7
Decommissioning incl. P&A

Decommissioning incl. P&A

Contact(s) for capability

Company contact

Mark Sørheim
Mob +47 488 65 261
Drilling & Well  Technology

Drilling & Well Technology

Decommissioning incl. P&A

Decommissioning incl. P&A

Bjørn Kahrs
Mob + 47 90553607

Hydrawell Intervention serves with following Capabilities

Latest approved