| 摘要 |
The present invention relates to a downhole system for monitoring an expansion of one or more metal sleeve annular barriers. The downhole system comprises a well tubular structure comprising a side pocket and one or more metal sleeve annular barriers for mounting as part of the well tubular structure, the metal sleeve annular barriers being adapted to be expanded in an annulus between the well tubular structure and an inside wall of a borehole. The metal sleeve annular barriers comprise a tubular part having a longitudinal extension and an expandable metal sleeve surrounding the tubular part, thereby forming an annular barrier space. The downhole system further comprises a downhole detection system comprising one or more detection devices provided in connection with the metal sleeve annular barrier(s) for detecting a condition of the expandable metal sleeve and generating signals representative thereof, the detection device(s) being connected via wiring to an electrical connection means arranged in the side pocket, and a data collection unit for being connected to the downhole detection system via the electrical connection means, the data collection unit being provided in the side pocket, whereby signals from the detection devices may be recorded by the data collection unit. Furthermore, the invention relates to a completion method for detecting sufficient expansion of metal sleeve annular barriers when completing a well. |
