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static filtration

1. n. [Drilling Fluids]

A filtration process in which the slurry being filtered remains static. Filter cake continues to grow thicker as filtration continues. Under static conditions, no cake erosion occurs. In theory, the filtrate volume increases as the square root of elapsed time, ignoring spurt loss.

Antonyms: dynamic filtration

Alternate Form: static filter press

See: capillary suction time testfiltercakefilter mediumfilter-cake qualityfilter-cake thicknessfiltrate tracerfiltrate volumefluid-loss controlfluid-loss-control materialhigh-pressure, high-temperature filtration testhydroxypropyl starchlow-pressure, low-temperature filtration testrelative filtrate volumespotting fluidspurt loss

X-Y plot of filtrate volume versus time.

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