Pile Top Drill Rigs

The pile top drill rigs (PBA) provide the most efficient solution for foundation drilling in mixed ground, boulders and hard rock. The diameter ranges from 0.6 to 8.0 m and can also be used to drill inclined, battered or raker piles. PBA work on the reverse circulation drilling (RCD) method – a highly efficient drilling procedure.

RCD SYSTEM

Reverse Circulation Drilling System, also known as air-lift system is that compressed air is injected into the drill pipe below water level just above the drill bit. This reduces the density of the internal water column and starts the circulation. The mixture of water, air and cuttings are then flushed out through the drill pipe into setting tanks.
Working with R.C.D System is highly efficient, safe and environmentally friendly solution for drilling large diameter and depth.

RCD method

Reverse Circulation Drilling Method, also referred to as airlift drilling, is well-established as a robust and straightforward means of operation, which is highly effective for large diameters and great depths, both in onshore and offshore applications.

Main Applications (Onshore and Offshore Foundation)

★Superstructures and buildings.

★Anchoring of oil and gas platforms.

★Marine structures, such as harbors, quay extensions, piers, jetties, berths and dry docks.

★Bridges, piers and causeways.

★Marine sewerage diffusers.

★Offshore wind farms.

★Dam rehabilitation.

★Decommissioning of oil and gas platforms.