HP 534WAB® for zonal isolation in a slim hole design
Full bore id wab allows forOptimised production
High temp WAB providedAbility to deploy in + 160°C
HPHT WAB enablesClient to complete well
Robust wab design provides ability toRotate & work reaching TD slim hole
10,000 PSI RATED rated wab can seal against expectDepletion pressures up to 8,000 psi over well life
Zonal isolation required to seal against expected depletion pressures of up to 8,000 psi over life of well. The operator was unable to design a cement program to achieve required sealing given the slim well construction, HPHT environment and small cement volumes.
Liner landed 4 m shallow. Rig pumps used to pressure liner to 5,500 psi and all WABs expanded quickly under surface control achieving the full Delta P capability of 10,000 psi out to 6 ½” washed out hole.
Liner pressure tested for 10 mins and inflow test completed for sealing verification.
Cementless, HPHT zonal isolation provided by slim OD WAB.
Our ISO 14310 rated, metal expandable WAB (Welltec Annular Barrier) for open hole zonal isolation, facilitates the ability to deploy ‘cementless’ extended reach, multi zone, horizontal, lower completions.