Well repair via high-temperature WAB® to revive geothermal producer
WELL TYPEGeothermal producer
RENEWABLESWelltec pilot success in renewables market segment
ENGINEERED WORKOVERCost savings of USD 8 mm vs drilling of new well
HIGH TEMPERATURE APPLICATIONTo sustain up to 550°F at full production
The 1214WAB would also offer anchoring support to the casing string in the event of thermal contraction or expansion of the casing string during production or shut-down operations.
During deployment, water flooded the well to keep temperatures ≤ 212°F—full production temperatures will be 600°F. The 1214WAB supported the cement column during curing and prevented free-water/acid from contaminating the cement or reaching the surface.
Welltec’s solution enabled the client to execute life-of-well, CAPEX-effective well-rejuvenation measures, proving the value of engineered well remediation.
WAB assembly was adapted to incorporate high temp sealing system, non elastomeric isolation valves and incorporated burst discs to bleed off high-pressure steam within application that will reach 600°F at full production.
Incorporating the high temperature WAB simplified the installation process when compared to alternative products with far more complex setting procedures.
Our ISO 14310 rated, steel expandable WAB® (Welltec Annular Barrier) is expanded between the base pipe and the casing or the borehole by applying pressure in the casing. It conforms to the actual well bore geometry.