Reverse Circulation Drill Rigs
Reverse Circulation Drilling (RCD), also know as airlifting, is a form of hydraulic circulation drilling that uses compressed air to flush material cuttings out of the drill hole in a safe and efficient manner.
It is a non-invasive drilling process that preserves sensitive ecology both above the ground and below the surface. This methodology enables the advancement of large-diameter borings in formations ranging from unconsolidated geology to medium hard and fractured rock.
An RCD is the best solution for dealing with:
Large Diameters Holes (more than 800mm)
Deep Depth (more than 20m)
Hard Rock Drilling (~350 MPa)
Bore Piling in Marine Conditions
An RCD has three types of roller cutters in the drill bit for different soil conditions giving you options.
Drill Spread
When utilizing an RCD Rig, the following equipment is also typically required to complete the job:
Power Pack
Crane