Mud Engineering & Wall Stabilisation
- Static Support: In unstable strata like sand and gravel layers, high-quality mud provides vital static hydraulic pressure to support the borehole wall and prevent collapse.
- Mud Cake Formation: The mud forms a dense, impermeable “mud cake” on the borehole wall to control fluid loss and stabilize the formation.
- Key Parameter Control: Operators must strictly control mud viscosity, specific gravity, and sand content. Mud that is too thin leads to hole collapse, while excessively thick mud compromises concrete pouring quality.
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