Which device is used to remove larger solids first from mud?

Which device is used to remove larger solids first from mud?

• A. Shaker screen
• B. Desander/Desilter
• C. Filter Press
• D. Centrifuge

Answer: (B)

In solids-control practice, separating solids by size happens in stages, moving from larger to smaller particles. After the mud passes through the shaker, which removes the biggest solids, a desander stage uses larger-diameter hydrocyclones to take out the next tier of larger solids. This step targets the bigger, coarser particles that still remain, preventing them from progressing to finer removal stages. The desander’s job is to do this efficiently before the finer solids are addressed by the desilter, and then by the final filtration or centrifugation steps for the tiniest particles. So, the desander/desilter stage is specifically designed to remove the larger solids first after the initial coarse screening, making it the best choice for that goal.

In solids-control practice, separating solids by size happens in stages, moving from larger to smaller particles. After the mud passes through the shaker, which removes the biggest solids, a desander stage uses larger-diameter hydrocyclones to take out the next tier of larger solids. This step targets the bigger, coarser particles that still remain, preventing them from progressing to finer removal stages. The desander’s job is to do this efficiently before the finer solids are addressed by the desilter, and then by the final filtration or centrifugation steps for the tiniest particles. So, the desander/desilter stage is specifically designed to remove the larger solids first after the initial coarse screening, making it the best choice for that goal.