Horizontal Directional Drilling

Horizontal Directional Drilling

Southeast Directional Drilling specializes in horizontal directional drilling techniques. These techniques are useful on many different types of projects, including those aimed at establishing gas, oil, water, sewer, communications, or fiber optic lines. That may explain why the services of companies like Southeast are frequently required by governments, gas companies, pipeline contractors, water contractors, and municipalities. Anywhere there is need for directional drilling, Southeast is there.

The reason horizontal directional drilling has become the industry standard is because it is less damaging to the environment than other drilling techniques. Horizontal drilling enables contractors to run pipelines under rivers, highways, mountains, lakes, crowded urban areas, and runways without disturbing the surface area. For those concerned with environmental impact, there is no other way to install pipeline.

Here is how horizontal directional drilling works. The first step is to dig a pilot hole. A 9 7/8 pilot hole is standard for most large rigs. Different soil types will impact the speed at which a pilot hole can be dug: harder soil will require more time to pilot hole completion. Second, the pilot hole is enlarged in a process called reaming. Increasing the size of the machinery with each successive pass, the pilot hole is gradually enlarged until it reaches the required size for the pipeline. Pipelines as large as 56 inches in diameter have been successfully pulled.

A mud pass clears debris from the reamed hole, and finally the pipeline is pulled into the hole. Southeast Directional Drilling currently holds the record for a massive 56 inch pipeline installed in the country of Trinidad. For more information on the major projects completed by Southeast or for a service estimate, please contact our estimating team on our contact us page.

Our Latest Blog Posts

Overcoming the Obstacles
July 13, 2020

Southeast Directional Drilling Prepared for All Soil Conditions

SEDD-article After years of preparation, work on the Northern Natural Gas (NNG) Cedar Station Upgrade in Dakota County, Minnesota (US), was completed in the autumn of 2019. Approximately eight miles (12.9 km) of 20 in. (50.8 cm) steel pipeline was installed around the Twin Cities suburb of Eagan. The new pipeline loops NNG’s Rosemount Junction to the Minneapolis No. 1 branch line, and is part of a 14 700 mile (23 657.4 km) pipeline connecting from Texas through Minnesota to upper Michigan.

The bulk of the work on the Cedar Station Upgrade project …

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SEDD Awarded Arthur T. Everham Award for Outstanding Safety Performance
April 1, 2019

Southeast Directional Drilling (SEDD) was awarded the Arthur T. Everham Award for Outstanding Safety Performance at the Distribution Contractor’s Association (DCA) 56th annual convention in Nassau, Bahamas on March 6, 2019.

The DCA has been recognizing top-quality safety with this award since 1986 and is judges companies based on number of man hours worked within the judging period. SEDD was in the 200,000 to 599,000 hours division and this was their first time winning the award.

“This has been one of the best safety years we’ve had in the history of SEDD,” says Director of Safety and Transportation Dana …

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