The General Recommendations When Installing the Desilter for Drilling Fluids Recycling System

Nov 20, 2013

Desilter is the third class equipment in solids control system, it is used to separate the solid particles whose diameter is 15-45μm in drilling fluids.

A desilter usually uses 5” hydrocyclones or even smaller ones. The smaller cones enable desilters to make the finest particle size separation of any full flow solids control equipment. Removing particles of 15μm and larger ones. Multiple cones are normally used in this application to obtain the required GPM you need for your solids control system.
 

Desilter
 

When installing a desilter, follow these general recommendations:

1. Size the desilter to process 100-125% of the total mud circulation rate.

2. Take the desilter suction from the compartment receiving fluid processed by the desander.

3. Keep all lines as short & straight as possible.

4. Do not use the same centrifugal pump to feed both the desander & desilter. If both pieces of equipment are to be operated at the same time, they should be installed in series and each should have its own pump.

5. Direct the overflow line downward into the next downstream compartment at an angle of approximately 45%.

6. Keep the end of discharge line above the surface of mud to avoid creating a vacuum in the line.

7. Install a low equalizer line to permit backflow into the desander section.

8. Install a guard screen over the suction with ½” slots to prevent large trash from entering the unit and plugging the cones.

KOSUN is a professional in China oil drilling solids control industry, we have been providing solids control equipment and system for so many oilfields all over the world, such as, All-Russia Region, East Asia and South Asia, the Middle East and North Africa, U.S.A., Australia and Germany in Europe. KOSUN solids control equipment, including shale shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump, mud agitator, mud gun, drilling fluids mud cleaner, jet mud mixer, mud tank, diesel tank, water tank, complete solids control system, etc.