B-annulus PT monitoring system
Continuous well integrity monitoring behind the production casing (in the B-annulus) in subsea wells.
Reliable electrical connectivity across junctions in multistage and multilateral completions
Complex completions installed in two parts consist of
Connecting electrical cables between the upper and lower completions was not previously possible in multitrip completions. Therefore, traditionally, sensors have not been deployed across the formation face in these wells.
By establishing electrical connectivity between the upper and lower completion, the inductive coupler addresses the challenge of acquiring reservoir data in real time without zonal production logging interventions. High tolerance for debris and vibration makes the system particularly suitable for deepwater multistage completions.
Permanent monitoring system with inductive coupler provides wireless communication from sandface to office.Read case study
When the coupler is used as part of the Manara production and reservoir management system, it enables in-lateral monitoring and control of individual zones in real time—for the first time, even in multilateral wells.
In extended-reach single laterals—where it may be necessary to push, pull, and rotate the completion to overcome friction and reach target depth—the inductive coupler enables the lower completion to be run on rotating drillpipe.
The reduced friction eliminates the risk of control line damage and tubing buckling, removing the limitations on wellbore length that confront single-trip completions.
After the lower completion is in place, the drillpipe can be removed and replaced with the upper completion to bring the well online.
Later in the life of the well, remedial operations in the upper completion are greatly simplified. Replacement of an ESP or a safety valve, for example, can be accomplished without having to retrieve the lower completion and its array of sensors and valves because the coupler can be reliably disconnected and reconnected multiple times.