Comacchio GEO205, GEO300 & GEO305

The Comacchio GEO205 is a compact multi-purpose hydraulic rig, capable of drilling using rotary augers (solid or hollow stem), rotary drilling through rock (open hole or coring), rotary percussive drilling (using various Overburden Drilling Systems) and window/dynamic sampling. We run five in our fleet.

The most common technique is dynamic sampling with either hollow stem augers or rotary casing - allowing rapid, high quality soil sampling with the capacity to case the borehole as sampling proceeds. Monitoring or remedial wells can then be installed through the centre of the hollow stem or within the casing.

The Comacchio GEO300 is a larger model in our rotary fleet, providing the capacity for deeper and larger diameter drilling than the GEO205. We run two.

Across the GEO fleet we can drill using rotary augers (solid or hollow stem), open hole rotary and rotary coring (conventional or wireline systems such as Geobor S), and ODS/Symmetrix cased rotary percussive systems to advance boreholes through dense, compacted granular overburden. On reaching target depth, boreholes can be installed with gas/groundwater monitoring and remediation wells - routinely up to 125mm diameter using our standard rotary techniques, with larger diameters possible depending on the geology.

The Comacchio GEO305 is a larger model in our rotary fleet, providing the capacity for deeper and larger diameter drilling than the GEO205. We run two.

Across the GEO fleet we can drill using rotary augers (solid or hollow stem), open hole rotary and rotary coring (conventional or wireline systems such as Geobor S), and ODS/Symmetrix cased rotary percussive systems to advance boreholes through dense, compacted granular overburden. On reaching target depth, boreholes can be installed with gas/groundwater monitoring and remediation wells - routinely up to 125mm diameter using our standard rotary techniques, with larger diameters possible depending on the geology.