How does oilfield drilling fluids desander work
Oilfield drilling fluids desander, also known as cyclone desander, is mainly composed of a cyclone and an underflow vibrating screen (linear or elliptical motion mode). The diameter of the cyclone of the drilling fluid desander has different sizes. It is mainly to choose the appropriate cyclone desander according to the actual processing capacity of the customer.
The function of the oilfield drilling fluids desander is to screen the solid phase particles in the drilling fluid when the desander rotates and integrate the cyclone flow and filtration, so as to achieve the purpose of solid-liquid separation.
The principle is that when the oilfield drilling fluid desander enters tangentially from the inlet of the desander under a certain pressure, a strong rotational motion is generated. Due to the different densities of sand and water, under the action of centrifugal force, centripetal force, buoyancy and gravity, the The liquid with lower density floats up and is discharged from the outlet, and the sand with high density is discharged from the discharge outlet at the bottom, so as to achieve the purpose of sand removal. If the sand content in the medium is high or the customer has high requirements for sand removal rate, multiple sand removers can be assembled and used in parallel, and the sand removal effect will be more significant. The equipment structure of the drilling fluid desander is composed of upper and lower parts. The cyclone is distributed on the upper part of the desander, and the lower part is a small vibrating screen.