| 摘要 |
A safety apparatus and method are disclosed. The apparatus and method are for monitoring integrity and/or blowout risk of a production phase well. The apparatus comprises: an inlet port for receiving fluid from a wellhead annulus bleed port; an analyser for receiving fluid from the inlet port and analysing physical and/or chemical properties of the fluid, wherein the analyser is configured to determine well-integrity based on the physical and/or chemical analysis. The inlet port is configured for external connection to a well-head annulus bleed port. The wellhead is preferably a surface wellhead, such as an onshore land well or an offshore fixed platform well having bleed ports for a plurality of well annuli. The analysis may comprise a comparison of measured properties of well annulus fluids before and after bleed down to determine if the annulus is in communication with a sustained flow source which may be indicative of a well integrity failure. The analysis may determine critical pressure thresholds and compare them to existing annulus pressure values for safe operation of the well. |
