Invented in the 1920s, directional drilling or Horizontal Directional Drilling (HDD), as it is now known, is a trenchless technology that was originally used in oil fields to increase oil production. In the 1990’s, the horizontal technology was adapted for utility conduit installations. Horizontal Directional Drilling is also referred to as horizontal drilling, rotary drilling and sideways drilling. Directional Technologies, Inc. specializes in environmental directional drilling, but we also complete utility directional drilling projects. For more information, contact us.
HDD allows for conduit placements underneath obstacles and provides maximum protection while, at the same time, minimizing maintenance costs. HDD is used in three major industries: the oil field, the utility industry, and the environmental remediation industry.
When HDD is used to install a utility, the size and length of the conduit and the soil conditions will determine the size and push/pull capacity of the directional drilling machine that is needed. Smaller directional drill rigs can be used to efficiently install service connections to homes without the need to dig up lawns and driveways. The larger directional drill rigs can be used to cross rivers and canals. Mid-sized rigs are used to efficiently install underground utilities without disrupting traffic and open cutting roads/highways, wetlands, and streams. Conduit and soil conditions will determine the size and push/pull capacity of the horizontal directional drill rig needed. Horizontal directional drilling project sites that include rock and cobble are evaluated individually. A crew experienced in these conditions would request boring logs and visit the site to determine the appropriate equipment.
Horizontal drilling can be used to install the following:
During the installation of a horizontal directional bore, normal business operations, as well as traffic can continue, uninterrupted. Additionally, a directional boring has a predictable and short construction schedule, as well as the least environmental impact of any construction method. Site restoration is minimal and can be used in sensitive environmental areas without disturbing wetlands and wildlife.
This is a horizontal directional drilling project that required Directional Technologies, Inc. to drill out 600’ into the Mount Hope Bay in Rhode Island. The bottom hole drilling assembly was cut off and drill pipe was used as a conduit for the submarine fiber optic cable.
Visit our other pages in this directional drilling section to learn about Benefits, Installation Methods, Directional Drilling Equipment, Design, and Performance.
77 N. Plains Industrial Road
Wallingford, CT 06492
Over 5,000 Horizontal Remediation Wells Installed Worldwide
NAICS Codes: 237990 Heavy Equipment & Horizontal Drilling • 237110 Water & Sewer Line and Related • 541620 Environmental Consulting Services for HRW Screen Design • 237130 Underground Cable Lying & Utility Line Construction
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