Helpful tips

What is horizontal directional drilling method?

What is horizontal directional drilling method?

Horizontal Directional Drilling (HDD) is a method of installing underground pipelines, cables and service conduit through trenchless methods. It involves the use of a directional drilling machine, and associated attachments, to accurately drill along the chosen bore path and back ream the required pipe.

What are the different types of horizontal directional drilling?

Horizontal directional drilling machines are divided into three categories large-diameter HDD (maxi-HDD), medium-diameter HDD (midi-HDD), and small-diameter HDD (mini-HDD). There is no significant difference in the operation of these systems.

What is the difference between directional and horizontal drilling?

A more complex way of directional drilling utilizes a bend near the bit, as well as a downhole steerable mud motor. Horizontal drilling is any wellbore that exceeds 80 degrees, and it can even include more than a 90-degree angle (drilling upward).

How much does horizontal directional drilling cost?

3.1 Construction Cost

Service/Product Price-Low Price-High
Directional Boring – Rural $6.00 $7.00
Directional Boring – Urban $8.00 $10.00
Directional Boring – Rock $42.50 $271.00
Conduit (2” HDPE) $0.75 $0.80

How accurate is horizontal directional drilling?

Highly accurate The accuracy of the tool is 0.01° in pitch and 0.04° in azimuth. At the same time the tool is not affected by magnetic fields from for example railways and cables.

How is horizontal drilling done?

Horizontal drilling is the process of drilling a well from the surface to a subsurface location just above the target oil or gas reservoir called the “kickoff point”, then deviating the well bore from the vertical plane around a curve to intersect the reservoir at the “entry point” with a near-horizontal inclination.

How far can directional drilling go?

These technologies are capable of reaching 10,000–15,000 ft (3000–4500 m) and may reach 25,000 ft (7500 m) when used under favorable conditions.

What is horizontal directional drilling used for?

Horizontal directional drilling (also called HDD) is a method that is used for trenchless drilling. Horizontal drilling is used for the placement of underground infrastructure like: water pipelines. telecommunication cables.

Why is horizontal drilling bad?

Horizontal drilling in the Marcellus shale involves large volume hydraulic fracturing, which poses a number of risks to aquatic species and habitats. This type of hydraulic fracturing requires about five million gallons of water per well, with 1-3 wells per pad.

How long does horizontal directional drilling take?

How long will HDD construction take? Completion of each siphon will take approximately 4-6 weeks. This includes about 3-4 weeks of drilling and 1-2 weeks to pull the pipe back.

How far can horizontal drilling reach?

As operators and the drilling and service contractors have devised, tested, and refined their procedures, and as improved equipment has been designed and implemented, routinely achievable horizontal displacements rapidly climbed from 400 to over 8,000 feet.