Techniques & equipment
Drilling is just the start, sampling is the goal. We apply the right technique to deliver the right sample.
Our techniques
Sonic drilling & sampling
Sonic drilling is powerful, fast, clean, and versatile, suitable for nearly all geological conditions.
It achieves excellent recovery up to ~120 meters depth and 235 mm diameter, with up to 80% less Investigation Derived Waste (IDW).
The method delivers high-quality cores, minimal borehole deviation, and maximum accuracy, even in difficult formations.
Percussion / bailer
Percussion and bailer drilling are robust methods for large diameters up to 324 mm and depths of ~120 meters.
The bailer efficiently retrieves cuttings but produces significant drill spoil, and cores require separate coring tools for quality results.
From small to heavy-duty rigs, percussion is effective in many soil conditions, but not suitable for rock formations or sites with large boulders.
Direct push / hammer
Direct push and hammer drilling are compact, efficient, and non-rotating, with up to 32 blows per second.
They are especially useful in rubble layers, tight urban spaces, and for rapid shallow to medium-depth sampling.
However, this method is not suitable for rock formations or sites with large boulders.
Core drilling & sampling
Core drilling with diamond bits provides undisturbed cores in liners for precise analysis.
It is suitable for geological, geotechnical, and environmental investigations in solid rock at greater depths.
A trusted method for accurate subsurface data and material classification.
Auger drilling & sampling
Auger drilling uses rotating flights to bring cuttings to the surface outside the casing.
It is flexible, widely applied in archaeological and soil classification projects, typically up to ~30 meters depth.
Effective in many soil conditions, but not suitable for rock formations or sites with large boulders.
Hand drilling & sampling
Hand drilling is quick, simple, and cost-effective for shallow soils up to ~8 meters depth.
It is ideal for initial investigations, small projects, or archaeological fieldwork.
Only suitable for softer soils without rubble or large stones.
Equipment fleet
Modern rigs for all drilling and sampling techniques
Specialised marine rigs for offshore projects
Transport fleet for flexible deployment across Europe