WAB® providing a SCP barrier and a horizontal liner hanger
WCS products1214WAB, 812WAB & 6WAB
V0 1214WAB whitin 13 3/8” casingEnabled client to verify B annulus barrier
Rapid set V0 WAB lh's added valueVia no requirement for set down weight to seal
Extensive WAB portfolio enabledExtended reservoir contact via 6WAB range
Capex effective P&AUsing V0 1214WAB as base for reduced risk P&A
The WAB was positioned close to the 13 3/8” shoe, to form part of the barrier envelope.
Exposed formations below the 13 3/8” csg shoe increased the risk of gas migrating and resulting in a gas below well head causes problems during PP&A. IS0 14310 V0 leak rate qualification of the WAB permitted installation without dispensation from the authorities. Next step was to drill out across the reservoir section to 8 1/2" open hole.
Primary & contingency liner
Plug & abandonment
1. Ensuring no SCP within the B annulus and as a base
2. As a future base for cement during well abandonment
After a successful well test, a bridge plug was installed inside the 9 5/8” casing just below the WAB depth. The 9 5/8” casing was then cut and the bridge plug and WAB were tested to 70 bar above 13 3/8” LOT. Cement was pumped to provide the necessary seal integrity to met the regulatory requirements for well abandonment.
CAPEX effective, reduced risk P&A operations.
Enhanced well integrity and extended reservoir contact via IS0 14310 V0 rated WAB portfolio.
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.