Mud Preparation Tips for Water Well Drilling in Silty Sand Layers
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Key Principles for Mud Formulation
In silty sand layers with high permeability and collapse risks, formulate high-viscosity, high-specific gravity mud to strengthen wellbore protection. Increase bentonite content to enhance viscosity, forming a thick, dense mud cake on the wellbore to prevent silty sand particle loss and quicksand.water well drilling rig -
Additives for Performance Enhancement
Add appropriate thickeners and fluid loss agents to improve mud suspension and water retention. This ensures effective suspension and discharge of silty sand cuttings. 例如, in a project, increasing bentonite by 15% and adding fluid loss agents reduced water loss to below 8ml/30min, solving wellbore collapse.water well drilling rig -
Dynamic Adjustment of Mud Parameters
Adjust mud performance parameters based on silty sand compactness and drilling depth. This dynamic adjustment is crucial for smooth drilling in silty sand layers.