Shenzhen Polymer Slurry | Auger Drilling Chemical Slurry

Chemical mud is a polymer mud with excellent colloidal properties in water. After full dissolution, it exhibits good adhesion and mud-forming capabilities. By applying chemical mud in the correct proportions based on water quality to the drilling mud pits, we can achieve mud-forming and wall protection effects. How does the chemical mud in the soil-retaining wall of drilling piles protect the wellbore?

1. The primary function of chemical mud slurry: During bridge pile foundation drilling, the soil layers to be penetrated are loose (or the soil around the borehole is disturbed during drilling, or the soil is self-stabilizing), with relatively weak soil stability. Consequently, the soil around the borehole tends to collapse under the action of horizontal soil pressure. Without a chemical mud slurry retaining wall, the soil around the borehole will fall into the hole, blocking the borehole internally and leading to the consequence of buried drill collapse.

Prepare slurry, arrange slurry pond, sedimentation pond, and slurry pond layout

Between each adjacent pier, set up slurry ponds and sedimentation ponds to meet the requirements for drilling mud. The discharge of mud is centralized, with a centralized discharge pit of not less than 200 m³ excavated at the center pier of every two piers. The manufacturer of chemical mud powder for rotary drilling rigs, regularly transported to *** location by mud trucks. In Guangxi, the chemical mud powder for rotary drilling rigs must not contaminate farmland or ditches along the route. Select and stock enough clay for slurry making to ensure the mud pressure exceeds the hydrostatic pressure, forming a mud skin on the borehole wall to block pore flow and protect the borehole wall from collapse. Slurry is made using clay, with the drilling rig making the mud itself. Its specific gravity, viscosity, sand content, and other indicators all meet the specifications. During drilling, the testing personnel must regularly check the performance indicators of the mud to make timely adjustments, ensuring smooth progress of the drilling work.