Welltec® AWA comprises of our industry proven WAB® for Zonal Isolation & WFV™ DP for inflow control, ran in combination, across the open hole reservoir section, facilitating full bore, cementless, zonal isolation & control.
The addition of Welltec's new DHA (Downhole Actuator) run on the upper IC tailpipe, engages with and mechanically shifts open the WFV™ DP just prior to landing off the upper completion, providing flow access to the previously isolated zones.
Thus the Welltec AWA enables safe deployment of intelligent completions in wells with losses.
Inflow from the reservoir via the WFV™ DP can then controlled by hydraulically activated inflow control devices incorporated within the upper completion.
During any potential workover, the DHA will re-engage and shift closed, multiple WFV's, re-isolating the reservoir to the wellbore during well re completion and enable safe retrieval/replacement of inner completion without reservoir damage (no LCM pumping, etc).