G - Physics – 01 – N
Patent
G - Physics
01
N
73/71, 324/29.6
G01N 27/02 (2006.01) B01D 17/00 (2006.01) B01D 33/073 (2006.01) B01D 37/04 (2006.01) G01N 27/22 (2006.01) G01N 33/28 (2006.01)
Patent
CA 1276080
A B S T R A C T BS&W MEASUREMENT APPARATUS AND METHOD The basic water and sediment (BS&W) system compares a wet stream to a dry stream of the same oil in two electrical capa- citance cells. A numerical zero offset is employed in the comparison to compensate for voltage output differences between the cells. The dry cell builds a small increase in its inherent offset from the wet cell because of its lower flow rate, which buildup is swept away when the wet fluid is run through both cells at a higher flow rate to determine the zero offset. To cancel the zero offset, the present invention alternates the flow to the two cells so that each cell experiences the same sequence of events alternately.
516254
Demny Florian C.
Stewart Thomas L.
Demny Florian C.
Shell Canada Limited
Smart & Biggar
Stewart Thomas L.
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