Edmonton Gas Line Company

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Horizontal Directional Drilling of Gas Lines: A Safe and Efficient Solution

When it comes to installing gas pipelines, horizontal directional drilling (HDD) is quickly becoming the preferred method. HDD involves drilling a hole horizontally underground and then pulling a pipeline through the hole. This technique has many advantages over traditional methods, including improved safety, reduced environmental impact, and greater cost-effectiveness.

Why Use HDD for Gas Line Installation?

There are many reasons why HDD is an ideal method for gas line installation, including:

  1. Enhanced Safety: HDD is a safer method of gas line installation compared to traditional open-trench methods, as it reduces the risk of damage to existing utilities, structures, and the environment.
  2. Reduced Environmental Impact: HDD is a more environmentally friendly option compared to traditional methods. The drilling process causes minimal disruption to the surrounding area, reducing the risk of soil erosion, and disturbance to flora and fauna.
  3. Cost-Effective: HDD is a cost-effective method of gas line installation, as it reduces the amount of excavation and surface restoration needed.
  4. Greater Flexibility: HDD allows for the installation of gas lines in areas that would be otherwise inaccessible or prohibitively expensive with traditional open-trench methods.

How Does HDD Work?

HDD involves several steps:

  1. Site Preparation: The site is prepared, and the drilling rig is set up. The direction and depth of the borehole are determined based on a pre-survey.
  2. Drilling: A drill string is inserted into the ground, and a borehole is created using a combination of drilling fluid and rotating drill bits.
  3. Conduit Installation: Once the borehole is complete, the conduit is attached to a pulling head and pulled through the hole.