Optimizing Drilling Performance: Pressure, Speed, and Engine Adjustments

Pressure Methods Based on Load and Vibration

1. Soft Soil Operations

   • When working with soft soil, the load is light. Utilize high-flow output to achieve high-speed pressurized drilling for optimal efficiency.

2. Clay Layer Operations

   • Continuous pressure application is crucial. Maintain high rotational speed with low load to ensure smooth drilling.

3. Challenging Sandy Layers

   • Sandy layers with high friction require constant pressure and release cycles. Failing to do so can extend work time by at least 3 hours and accelerate machine wear.

4. High-Precision Oscillating Geology

   • In dense, oscillating formations, adopt an aggressive approach—apply continuous pressure to force breakage.

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Controlling Drill Rod Speed Based on Geological Hardness and Type

1. Pebble Layer Drilling

   • Never underestimate pebble layers. Avoid direct hardness confrontation—use slow rotational speed for higher efficiency.

2. Mudstone and Hard Gravel Layers

   • Patience is key. High speeds cause slippage, while low rotational speeds deliver better results with less effort.

3. Crushed Stone Layer

   • High-speed drilling in fractured rock layers risks broken teeth and even drill rod twisting. Medium speed is the safest and most effective choice.

4. Stable Subsurface Layers

   • No concerns here—high-speed drilling performs flawlessly.

   Note: Rotary drilling rigs equipped with down-the-hole hammer tools use compressed air to deliver impact energy directly to the hammer head, efficiently breaking rock within the pile diameter for seamless concrete pouring.

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Adjusting Engine Speed for Efficiency and Fuel Savings

Every project varies in load and vibration, and each machine behaves differently. Operators must fine-tune engine speed to balance power and fuel consumption, ensuring both energy efficiency and high performance.

By mastering these techniques—pressure control, speed adjustments, and engine optimization—drilling professionals can maximize productivity while minimizing downtime and equipment wear.

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