| 摘要 |
Fluid flux in a fluid injection and/or hydrocarbon fluid production well is monitored in a cost efficient and accurate manner by inducing the fluid flux to move an acoustic emission device in a longitudinal direction through the well, measuring a longitudinal velocity (v) of the acoustic emission device at various longitudinally spaced locations in the well using a fiber optical Distributed Acoustic Sensing (DAS) assembly which monitors the longitudinal position of the acoustic emission device against time along at least part of the length of the well, and monitoring the fluid flux at various locations along the length of the well on the basis on the measured velocity (v) of the acoustic emission device. |
