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fluid-loss control

1. n. [Drilling Fluids]

The act or means of controlling (usually lowering) the volume of filtrate that passes through a filter medium. Control of fluid loss for a mud is achieved by several means, one of which is by addition of fluid-loss-control materials to the mud system. Another is to change the mud chemistry to make the materials already present work better. Adding a clay deflocculant to freshwater mud typically improves fluid-loss control.

See: carboxymethyl starchcarboxymethylcellulosefilter mediumfiltrate volumefluid-loss-control materialgilsonitegyp mudhigh-pressure, high-temperature filtration testlow-pressure, low-temperature filtration testplugging materialsaltwater mudspurt lossstatic filtration

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