What Are The Micro-operations of Rotary Drilling RIGS

Rotary drilling RIGS play a crucial role in construction, and their micro-operations are related to the efficiency and quality of construction. The following is a detailed introduction to six important micro-operations of rotary drilling RIGS for you.

1. Precise positioning: Before operation, based on the construction drawings, with the aid of total stations and other measuring instruments, the drilling position should be accurately determined. When positioning the drilling rig, it is necessary to adjust the levelness of the machine body and the verticality of the mast. This can be monitored by a level and a verticality meter to ensure that the error is within an extremely small range, laying a precise foundation for subsequent drilling.

2. Speed adaptation: According to different geological conditions, the speed of the power head should be reasonably adjusted. In soft soil layers, a higher rotational speed combined with a smaller torque can efficiently cut the soil. In hard rock or sand egg layers, reducing the rotational speed and increasing the torque can prevent the power head from being "pressurized", ensuring smooth drilling.

3. Pressure control: In soft soil layers, long-stroke and low-pressure continuous drilling is adopted to maintain the stability of the hole wall. In hard strata, point pressure application, short-stroke and high-pressure impact crushing of rocks, timely switching according to stratum changes, to enhance drilling efficiency and equipment lifespan.

4. Selection of drill buckets: Select drill buckets based on geological conditions. For silt and clay, double-bottom sand scoops are used for convenient soil cutting and extraction. For sand and egg layers and hard rock, use cutting teeth to enter the rock drill bucket or cylinder drill, which is suitable for the geological conditions and ensures the drilling effect.

5. Drill lifting operation: When lifting the drill, rotate the power head appropriately to reduce the friction between the drill bucket and the hole wall, lower the drill lifting resistance, and save energy consumption. The speed of lifting the drill should be stable to avoid excessive speed which may cause the hole wall to collapse.

6. Hole depth monitoring: The depth of the borehole can be monitored in real time through the built-in depth measurement system of the drilling rig or by marking scales on the drill pipe. When approaching the designed depth, slow down the drilling speed to ensure that the depth precisely meets the standard.

Mastering these micro-operations of rotary drilling RIGS can ensure the safe, efficient and high-quality completion of construction under different geological conditions, and enhance the overall benefits of the project.