Drilling Mud Desander and Desilter

Desanderand Desilter: Desander desilter are made with a hydrocyclone and a cyclone underflow handling and recycling of drilling fluids shale shaker small fine mesh composed. Drilling desander 30-90μm used to remove solid particles; desilter used to remove the 10-30μm solid particles. Carve cyclone and the cyclone particle size D50 is not only related to the size of the structure, but also with the drilling fluid density, density and pressure of the liquid inlet.Drilling desander shale shaker should be used as the second stage solid phase after removal of some equipment, and desilter should be used as the third stage solid-phase removal equipment.

In order to meet the requirements of handling all of the drilling fluid , drilling fluid and desilter desander must be made ​​up of several components cyclone cone . In order to ensure normal operation cyclone . Inlet pressure must be maintained at 0.25 --- 0.35MPa this range. Desilter swirl cone because many long pipeline , the inlet pressure should be whichever is greater ; drilling desander less due to cyclone cones , pipe sections, the inlet pressure is due , whichever is smaller . Inlet pressure depends on the size drilling sand pump matching is reasonable, therefore drilling sand pump selection is critical, usually 40mH2O drilling sand pump head around with the drilling fluid displacement and division desander mud is equal to the amount of the calibration process , you can meet the requirements. 

Meanwhile, in the selection of drilling fluids and desilter desander must take into consideration the maximum displacement of drilling pump , with its reach a reasonable match . Both devices use the time , no strict restrictions , usually in shallow stratigraphic drilling and soft formations , drilling cuttings large particles content is high, the two must be used simultaneously ; at drilling depth strata and hard strata , if with fine mesh shaker can be used directly in addition to handle drilling mud , which have little impact on the quality of drilling fluid purification , and very 
economical.

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