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How does a desander work in a solid control system?

 A desander is a key component of a solid control system in drilling operations. It is used to remove finer solids, such as sand and silt, from the drilling mud. Here’s how a desander works:


Inlet: The drilling mud, along with the solids, enters the desander through its inlet.

Tangential entry: The drilling mud enters the desander tangentially, creating a centrifugal force that causes the heavier solids to move towards the wall of the desander.

Spiral flow: The drilling mud flows in a spiral manner inside the desander, with the heavier solids settling on the wall due to the centrifugal force.

Solids separation: As the drilling mud continues to flow, the settled solids accumulate at the bottom of the desander cone. The separated solids are then discharged through an outlet at the bottom of the cone.

Overflow: The clean drilling mud, with reduced solids content, exits the desander through an overflow outlet located at the top of the cone.

Adjustment: The effectiveness of the solids separation in the desander can be adjusted by altering the pressure and flow rate of the drilling mud.

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It’s important to note that a desander is typically used in conjunction with other solid control equipment, such as shale shakers and desilters, to achieve a comprehensive solids control process. The combination of these components helps ensure efficient separation and removal of solids from the drilling mud, maintaining its quality and optimizing drilling performance.

KOSUN desander can separate solid particles between 47 and 74μm during mud treatment.

Sand cyclone is 100% polyurethane or high chromium cast iron, long service life;

Clamp type, easy to maintain;

Compact design, small space;

1, 2 or 3 10" or 12" sand cyclone can be flexibly selected according to different processing capacity;

When the user assembles, it can be connected quickly and flexibly.


Xi’an KOSUN, as a professional manufacturer of solids control equipment, mud-zero discharge equipment, and oily sludge treatment equipment, adheres to the principle of "quality first and reputation foremost".  We are dedicated to serving every customer wholeheartedly.  We welcome visits and inspections of our company and factory.  Please contact us at +8613379250593 (WhatsApp).

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