Monitoring fluid flow through a filter
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United States of America Patent
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Sep 17, 2002
Grant Date -
N/A
app pub date -
Jun 19, 2000
filing date -
Mar 25, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
It is desirable to be able to monitor the condition of a filter in a fluid flow system, for example a sandscreen 3,4 in a fluid well. The invention provides monitoring apparatus including an optical fibre 6 having a pressure sensor 7. Pressure is exerted on the sensor, by fluid flowing through the sandscreen, via ports 10 and 11. The pressure sensor is responsive to a light signal, and to the exerted pressure, to produce a sensing light signal indicative of a characteristic of the fluid flow, such as pressure differential or fluid velocity. This, in turn, is indicative of the condition of the sandscreen or filter.
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