What is oilfield drilling fluids desander
Oilfield drilling fluids desander is a secondary solids control equipment for processing drilling fluid in drilling operations, usually with 8, 10, 12 cyclone groups, mainly used to separate solid particles with a particle size of 47-76 microns in the drilling fluid. The desander cleaner is mainly composed of a vibrating screen, a cyclone, a manifold, and an electric control system. The oilfield drilling fluids desander is used to separate solid particles that cannot be separated by the vibrating screen.
The oilfield drilling fluids desander can also be called a cyclone desander, which is mainly composed of a cyclone and an underflow vibrating screen (linear or elliptical motion mode). The diameter of the cyclone of the oilfield drilling fluids desander has different sizes. It is to choose the suitable cyclone desander according to the customer's actual processing capacity requirements.
The role of oilfield drilling fluids desander is to screen the solid particles in the drilling fluid when the desander rotates and integrate the swirling flow and filtering into one, so as to achieve the purpose of solid-liquid separation.
The specific principle of oilfield drilling fluids desander is that when the drilling fluid enters tangentially from the inlet of the desander under a certain pressure, it produces a strong rotational movement. Due to the different density of sand and water, it is affected by centrifugal force, centripetal force, buoyancy and gravity. Bottom, the lower density liquid is floated up and discharged by the outlet, and the dense sand particles are discharged from the bottom discharge outlet, so as to achieve the purpose of sand removal. If the sand content in the medium is high or customers who have high requirements for sand removal rate, multiple desanders can be assembled and used in parallel, and the sand removal effect will be more significant. The equipment structure of oilfield drilling fluids desander is composed of upper and lower two parts. The cyclone is distributed on the upper part of the desander, and the lower part is a small vibrating screen.