In water well drilling rig operations, optimizing mud circulation boosts bit efficiency greatly.
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For pure clay,
use low-solids mud (
under 3%
solids)
to reduce bit adhesion.
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Match pump capacity to bit’s debris removal—keep at 20-30m³/h for timely cuttings transport.
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Install desilters and shakers to remove particles over 0.074mm, maintaining flow.

Add small PAM in clay-sand layers to enhance sand carrying. Monitor viscosity; water well drilling rigs perform better with fine circulation control.