Horizontal Directional Drilling

This trenchless method of installing pipe and other utilities underground uses a surface launched drilling rig. It causes little impact on the surrounding area and is used in situations when trenching or excavating is impossible or impractical.



A Quick Guide to Underground HDD Steering and Tools A Quick Guide to Underground HDD Steering and Tools A Quick Guide to Underground HDD Steering and Tools A Quick Guide to Underground HDD Steering and Tools


Both gyro and magnetic systems offer benefits for HDD operators, but the tracking ability of magnetic sensors makes them the most accurate...

The Role of Hydrogeology in Trenchless Construction The Role of Hydrogeology in Trenchless Construction The Role of Hydrogeology in Trenchless Construction The Role of Hydrogeology in Trenchless Construction


Knowing the characteristics of groundwater near the drill site and understand how it can affect drilling operations is essential. Therefore...

Down-the-Hole Drilling Method Explained Down-the-Hole Drilling Method Explained Down-the-Hole Drilling Method Explained Down-the-Hole Drilling Method Explained


Discover how down-the-hole (DTH) drilling has made life easier for contractors to drill wells faster and more efficiently.

The Directional Core Drilling Method: It's Importance to Geotechnical Investigations The Directional Core Drilling Method: It's Importance to Geotechnical Investigations The Directional Core Drilling Method: It's Importance to Geotechnical Investigations The Directional Core Drilling Method: It's Importance to Geotechnical Investigations


Learn how directional core drilling helps geotechnical engineers effectively undertake trenchless projects with a good understanding of the...

Trenchless Frac-out: How Do You Prevent It? Trenchless Frac-out: How Do You Prevent It? Trenchless Frac-out: How Do You Prevent It? Trenchless Frac-out: How Do You Prevent It?


Although frac-out’s happen quite commonly during an HDD project, these 7 tips can help you prevent it from occurring right from the...

Understanding the Importance of Wellbore Stability Understanding the Importance of Wellbore Stability Understanding the Importance of Wellbore Stability Understanding the Importance of Wellbore Stability


A stable wellbore is essential to the oil and gas industry. To adequately calculate the wellbore stability, planners must take into account...

Gel Strength: Understanding Its Importance When Assessing Drilling Fluids Gel Strength: Understanding Its Importance When Assessing Drilling Fluids Gel Strength: Understanding Its Importance When Assessing Drilling Fluids Gel Strength: Understanding Its Importance When Assessing Drilling Fluids


Learn why the right gel strength balance must be struck for the specific soil conditions in order to prevent costly repairs and downtime...

Horizontal Auger Boring: The Advantages of Knowing When to Use It Horizontal Auger Boring: The Advantages of Knowing When to Use It Horizontal Auger Boring: The Advantages of Knowing When to Use It Horizontal Auger Boring: The Advantages of Knowing When to Use It


Horizontal auger boring uses a combination of jacking to push pipe casings into the soil and an auger to remove the spoil from the inside...

Pipe Ramming: 5 Methods Used in Horizontal Directional Drilling Pipe Ramming: 5 Methods Used in Horizontal Directional Drilling Pipe Ramming: 5 Methods Used in Horizontal Directional Drilling Pipe Ramming: 5 Methods Used in Horizontal Directional Drilling


Pipe ramming techniques for use during horizontal directional drilling include pullback assist and bore salvage, ending the need for...

NASTT Executive Director Michael Willmets On the Success of NASTT's Annual No-Dig Show NASTT Executive Director Michael Willmets On the Success of NASTT's Annual No-Dig Show NASTT Executive Director Michael Willmets On the Success of NASTT's Annual No-Dig Show NASTT Executive Director Michael Willmets On the Success of NASTT's Annual No-Dig Show


The annual NASTT No-Dig Show is highly regarded as one of the best events for trenchless technology, and trenchless professionals look...

An In-Depth Look at the Role of Drilling Fluid Systems in Trenchless Construction An In-Depth Look at the Role of Drilling Fluid Systems in Trenchless Construction An In-Depth Look at the Role of Drilling Fluid Systems in Trenchless Construction An In-Depth Look at the Role of Drilling Fluid Systems in Trenchless Construction


Drilling fluid selection and management should start even before bidding on a job, as the quality of drilling mud can be the difference...

Understanding Drilling Fluids Solids Control with Horizontal Directional Drilling Rigs Understanding Drilling Fluids Solids Control with Horizontal Directional Drilling Rigs Understanding Drilling Fluids Solids Control with Horizontal Directional Drilling Rigs Understanding Drilling Fluids Solids Control with Horizontal Directional Drilling Rigs


Horizontal directional drilling fluid poses environmental problems if not disposed of properly. However, through the use of solids control...

Mixing the Mud: The Science of Drilling Fluid in HDD Mixing the Mud: The Science of Drilling Fluid in HDD Mixing the Mud: The Science of Drilling Fluid in HDD Mixing the Mud: The Science of Drilling Fluid in HDD


Drilling fluid is the life fluid of a trenchless project; it can literally make or break a borehole. Therefore, managing and selecting the...

Carrying Out In-Situ Stress Measurements: Hydraulic Fracturing Vs. Overcoring Methods Carrying Out In-Situ Stress Measurements: Hydraulic Fracturing Vs. Overcoring Methods Carrying Out In-Situ Stress Measurements: Hydraulic Fracturing Vs. Overcoring Methods Carrying Out In-Situ Stress Measurements: Hydraulic Fracturing Vs. Overcoring Methods


Carrying out in-situ stress measurements can be accomplished by using either hydraulic fracturing or overcoring methods. Both offer a...

Trenchless Industry Experts Share What Innovations They See on the Horizon in 2019 Trenchless Industry Experts Share What Innovations They See on the Horizon in 2019 Trenchless Industry Experts Share What Innovations They See on the Horizon in 2019 Trenchless Industry Experts Share What Innovations They See on the Horizon in 2019


We went to NASTT’s No-Dig Show 2019 to seek out trenchless engineers and underground infrastructure professionals to find out what new...

Understanding Key Laboratory Testing Methods for Site Investigation Understanding Key Laboratory Testing Methods for Site Investigation Understanding Key Laboratory Testing Methods for Site Investigation Understanding Key Laboratory Testing Methods for Site Investigation


Soil investigation, both intrusive and laboratory testing, can be a life-saver in terms of cost and time. These tests help the contractor...

What Lies Beneath: The Top 3 Intrusive Site Investigation Methods What Lies Beneath: The Top 3 Intrusive Site Investigation Methods What Lies Beneath: The Top 3 Intrusive Site Investigation Methods What Lies Beneath: The Top 3 Intrusive Site Investigation Methods


Intrusive site investigations provide a firsthand look at what's beneath the surface, and using these methods, one can gather information...

The Importance of Continuing Education for Trenchless Professionals The Importance of Continuing Education for Trenchless Professionals The Importance of Continuing Education for Trenchless Professionals The Importance of Continuing Education for Trenchless Professionals


Continuing education is a necessary part of keeping abreast of all the new technologies and procedures affecting the trenchless industry....

Slurry Pump Capacity & Flow Rates Explained: Sizing Slurry Pump Capacity to Match Project Conditions Slurry Pump Capacity & Flow Rates Explained: Sizing Slurry Pump Capacity to Match Project Conditions Slurry Pump Capacity & Flow Rates Explained: Sizing Slurry Pump Capacity to Match Project Conditions Slurry Pump Capacity & Flow Rates Explained: Sizing Slurry Pump Capacity to Match Project Conditions


Sizing a slurry pump correctly is a critical part of the pump selection process. This ensures that it will operate within its design...