| 摘要 |
<p>A system is described for controlling production shut down of an underwater fluid production well. The well has a sensor 9, 10, 11 for producing an output signal indicative of the state of the well and a valve 2, 3, 4 which is actuable to shut down production activity of the well. When the output signal is received it is processed by a processor 18 to determine if a shut down is required and whether to output a shut down signal to the valve 2, 3, 4. The signal receiving means and processor 18 are located at the well and the sensor 2, 3, 4 may also be disposed at the well. A control signal may also be received at the well from the surface and may be combined with the output signal from the processor.</p> |
