Rotary Drilling Rig Fleet

Comacchio GEO405HT

The Comacchio GEO405HT Multipurpose Rotary Rig.

The GEO405HT’s are compact, yet very powerful and hugely capable rotary rigs, equally as capable of both SI work, Geobor-S wireline coring or open hole drilling to depths in the order of 150m bgl.

With a rotary head capable of low speed, high torque; as well as high speed with less torque, the Comacchio GEO405HT is a formidable force capable of progressing boreholes in any geology to depths in excess of 150m using either DTH Hammer, rock roller, drag or PCD bits.. or to diameters of 300mm using hollow and solid stem augers.

Making it more specific to the geotechnical industry, ADP Group’s GEO405HT variant is also fitted with a rig mounted SPT hammer, not only making the process more efficient but also eliminating the requirement to lift the hammer manually – reducing manual handling onsite!

Other systems include overburden casing and wireline coring. Flushing mediums include mud/water re-circulation via the on board 200l/min mud pump, or air flush via an auxiliary compressor.

Rig Dimensions (when working)

Width: 1.70m Length: 5.00m Height: 5.50m Weight: 6.50 tonne Working

Area: 4m wide x 10m long

Rig Feed: 4.50 tonne Rig Pull Back: 6.50 tonne Engine Power: 95hp

Noise Levels: Engine Idle @ 1m = 88dB / DS Hammer @ 1m = 115dB

Rigs in fleet: DR9

Rig Capabilities (guide only, subject to geology)

Dynamic sampling – 30m

Conventional coring (T6-H, 116, 131 & 146) – 120m / Geobor-S wireline – 120m

Rotary open hole – 150m

Hollow stem augering (8″ & 10″) – 25m

Casing (PW, SW, 8″ & 10″) – 50m

In-situ testing (rig mounted SPT hammer) – SPT, CPT, U70, U100 & UT100

Other drilling services

  • Industry Sectors

  • Window Sampling

  • Borehole Grouting

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