In gravel layers, strong permeability causes common mud to loss,failing to wall protection and
discharge slag effectively, thus affecting well construction quality and progress.water well drilling rig
To optimize mud performance, improve mud viscosity and water loss control. Add water loss reducers like CMC to bentonite mud to reduce mud infiltration into strata. Use PAM to enhance mud suspension, preventing cuttings from settling easily.

- Adjust mud specific gravity based on gravel particle gradation. For coarse gravel, increase specific gravity to 1.2–1.3g/cm³ to strengthen hole wall support.
- Regularly test mud performance indicators and timely supplement/adjust additives.
- Ensure stable mud performance by maintaining proper additive ratios and monitoring changes in gravel layers.water well drilling rig