Desanders and Desilters in Oil & Gas Drilling Rigs
Desanders and desilters (Figure 1) are secondary solids control equipment used in oil and gas drilling rigs (check also: types of drilling rigs) that use hydrocyclones. They operate using the centrifugal force created by injecting fluid tangentially at high speed, these exaggerate the differences in settling speed of different size particles of the same density.

This allows the different size particles to be separated from each other. In particular sand, silt and clay can be separated.
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