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Directional Drilling (DD)

(Sometimes referred to as Horizontal Directional Drilling)

Maxi to Mini Drill Rigs. Allen Watson own and operate the most technologically-advanced equipment with pullback forces from 300te down to 10te. Our extensive range of mud mixing, pumping and recycling systems, motors, jet heads, reamers and special tooling combined with our knowledge and experience allows us to successfully complete small, medium and major pipeline projects.

What is Directional Drilling?

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Directional Drilling provides a safe system of installing pipes, ducts and cables where conventional open cut methods are not permitted, practical, environmentally or economically viable.

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Advantages include:

• Short, medium or long lengths of pipe can be installed without intermediate pits.
• Pipes can be installed either straight or curved to steer clear of obstacles.
• By boring underground the working area is confined to points of entry and exit only.
• No Disruption to road, river or rail traffic and no scarring of the landscape.
• Equipment works from surface with no need for deep excavations.
• HDD is relatively quick and in many cases has lower overall costs.
• HDD is unaffected by surface obstacles.
• Can be used to install pipes in changeable ground conditions.
• Sea outfalls can be drilled with minimal marine works.

Typical Applications

Steel or Polyethylene pipes from 60mmØ up to 1,200mmØ in distances from 25 metres up to 2,000 metres have been successfully drilled under areas such as Rivers, Estuaries, Roads, Railways, Airports, contaminated landfill sites and Sites of Special Scientific Interest.

Crossings can be for: Water, Oil, Gas, Electric, Sewage, Chemicals, Communication Ducts and Outfalls.