Which Types of Soil Are Easier To Operate with Rotary Drilling RIGS

The difficulty of rotary drilling rig operation is closely related to the soil quality. The physical and mechanical properties of different soil types vary greatly, which has a significant impact on drilling efficiency and equipment wear and tear. Understanding which soil types are easier to apply can help plan the operation reasonably and improve the construction efficiency.

1. Clayey soil: Clayey soil has fine particles and good adhesiveness. It is less likely to collapse during drilling and the drill cuttings are easy to discharge. Moreover, it causes little wear to the drill bit and can maintain a stable drilling speed.

2. Silt: Silt particles are fine and evenly distributed, resulting in low drilling resistance. As long as the drilling speed is well controlled, the hole wall is less likely to collapse and the construction will be relatively smooth.

3. Sand (medium and coarse sand) : Medium and coarse sand particles have certain gaps between them but the adhesion is still acceptable, and the slag discharge during drilling is smooth. When combined with appropriate mud wall protection, the construction can be completed efficiently.

4. Plain fill soil: Plain fill soil composed of loose soil, sand, etc. If its composition is single and there are no large impurities, the drilling resistance is small and it is easy to form a hole.

5. Light silty clay: Light silty clay has both viscosity and a certain degree of water permeability. During drilling, the hole wall is stable, the resistance to the drill tool's lifting is small, and the construction difficulty is relatively low.

6. Weathered rock strata (strongly weathered) : Strongly weathered rock strata have a loose structure and relatively low hardness. Rotary drilling RIGS equipped with suitable drill bits can easily break them, resulting in high drilling efficiency.

In conclusion, rotary drilling RIGS are easier to operate in soil types such as clayey soil, silt, and medium to coarse sand, which have relatively stable structures, low drilling resistance, and are less prone to collapse. These soil types can reduce equipment wear and tear and ensure construction efficiency, but during construction, measures such as wall protection still need to be taken according to specific circumstances.