Boart Longyear’s dual rotary services deliver casing penetration by maintaining borehole stability. This allows advancement in the most challenging ground conditions where traditional overburden drilling systems may be unsuccessful.
- Lose Overburden – Dock, wharf and other structural foundation elements in high water table conditions can be drilled where heaving formations exist.
- Obstruction Fill and Rock – Drills through man-made and natural obstructions (fill, overburden, boulders and rock).
- General Construction Sites – Truck, track or crane mounted options with battered drilling capability to provide flexibility and increased penetration.
- Structural Support – Penetrates through overburden to seat piles or anchors in bearing stratum or bond zone to substantial depths.
- Shaft Drilling – Accurate, straight, tight tolerance holes are achieved by advancing casing directly with independent rotary drives for elevator, tunnel and many other types of shafts.
- Dewatering Wells – Casing advancement without drilling additives produces superior well construction in difficult overburden and rock formations.
