| 摘要 |
<p>The present invention relates to a downhole completion system comprising a production casing installed in a borehole and an annular barrier system to be expanded in an annulus between a production casing and a wall of a borehole or another well tubular structure downhole for providing zone isolation between a first zone having a first pressure and a second zone having a second pressure of the borehole, the downhole completion system comprising an annular barrier comprising a tubular metal part adapted to be mounted as part of the production casing, the tubular metal part having an outer face, an expandable metal sleeve surrounding the tubular metal part and having an inner sleeve face facing the tubular metal part and an outer sleeve face facing the wall of the borehole, each end of the expandable metal sleeve being connected with the tubular metal part, and an annular space between the inner sleeve face of the expandable metal sleeve and the tubular metal part, the annular space having a space pressure, wherein the downhole completion system further comprises a sensor device which is in communication with the first zone and/or second zone, respectively, the sensor device being adapted to measure the first pressure of the first zone and the second pressure of the second zone for verifying the zone isolation. The present invention also relates to a verification method for verifying zone isolation and to a monitoring method for monitoring a condition of a well.</p> |
