Comparison of Applicability of Different Types of Drilling Rigs: Choosing the Optimal Solution Based on Geological Conditions

Comparison of Applicability of Different Types of Drilling Rigs: Choosing the Optimal Solution Based on Geological Conditions

The most crucial point in selecting a drilling rig is understanding the predominant geological conditions underground, as different machines vary significantly in efficiency depending on the strata. If drilling primarily involves soft soil, sand, or clay layers, a rotary drilling rig that operates through rotation and mud flushing is usually the best choice. It drills quickly in these soft strata and is relatively easy to operate, making it a common model for drilling ordinary water wells or engineering pile holes.

However, if there is a large amount of hard rock underground, such as granite or hard sandstone, ordinary rotary drilling rigs will struggle, drilling slowly and experiencing rapid drill bit wear. In this case, it is necessary to consider percussion or multi-functional composite drilling rigs. Percussion drilling rigs work on the principle of repeatedly striking rock with a heavy hammer, effectively breaking up hard rock layers; while composite drilling rigs combine rotation and percussion functions, offering greater adaptability and maintaining good efficiency in complex strata with varying degrees of hardness.

Therefore, obtaining accurate geological information is crucial before making a decision. You can refer to existing drilling records in the vicinity or have a professional conduct a small-scale survey. Combining this information with your budget, drilling depth, and borehole diameter requirements will allow you to make a more informed choice. For example, for general soil layers with occasional rocky sections, a powerful multi-purpose drilling rig might be the most cost-effective option; while if you know it's continuous hard rock, investing in a specialized percussion drill might be more efficient and economical. The best practice is to inform a reputable equipment supplier of your geological conditions and specific needs; they can usually provide the most practical and professional advice.