| 摘要 |
The present invention relates to an annular barrier system (1) for proving a testable annular barrier arranged between a first metal casing (2) or borehole and a second metal casing (3), the second metal casing having an outer face. The annular barrier system comprises a first annular barrier (4) and a second annular barrier (5), each barrier comprising a tubular part (6) made of metal extending in a longitudinal direction for mounting as part of the second metal casing, an expandable metal sleeve (7) surrounding and connected with the tubular part and defining an annular barrier space (13), and a first fluid passage (11) in the tubular part for letting fluid into the annular barrier space to expand the sleeve. The annular barrier system further comprises a sensor (9), and when the expandable sleeves are expanded to abut the first metal casing or borehole, a first annular space (12) is defined between the annular barriers, wherein the sensor is arranged to determine a condition of the annular space in order to test the isolation ability of at least one of the annular barriers. The present invention also relates to a method of testing pressure integrity of a well using an annular barrier system as described above. |
