How Horizontal Directional Drilling Contributes to a Greener Environment
As industries around the world work towards reducing their environmental footprint, traditional methods used to install underground infrastructure are coming under greater scrutiny. With a 7.0% CAGR projected by 2030, horizontal directional drilling (HDD) has become an increasingly important part of that conversation.
Where conventional open-cut excavation causes significant surface disruption, HDD offers a trenchless alternative that is inherently more sympathetic to the environment around it.
Here is how Prime Horizontal is playing its part.
Protecting Ecosystems and Natural Habitats
One of the most visible environmental benefits of horizontal directional drilling is its ability to cross rivers, wetlands, and ecologically sensitive land without disturbing the surface. Rather than excavating across a riverbank or through protected ground, HDD allows pipelines, cables, and utility conduits to be installed underground along a carefully steered bore path. The land above remains largely undisturbed, wildlife habitats are left intact, and watercourses are not disrupted during installation.
This matters particularly in environmentally regulated environments. Projects crossing or near protected sites are subject to Habitats Regulations Assessment requirements, rooted in EU Directive 92/43/EEC, which require developers to demonstrate no adverse effect on Special Areas of Conservation, Special Protection Areas, and internationally important Ramsar wetland sites.
For many of Prime Horizontal's clients working on renewable energy and pipeline infrastructure, HDD is the method that makes it possible to satisfy those requirements in the first place, keeping the surface above protected habitats entirely undisturbed.
Prime Horizontal's engineers understand these environments well. With locally based teams operating across Europe, North America, Australia, and Southeast Asia, they bring practical, on-the-ground knowledge to projects.
Reducing Construction Footprint
Open-cut trenching requires significant surface works over long distances. That means heavy machinery working across wide corridors of land, soil removal, reinstatement, and all the associated carbon output from extended site operations. Horizontal directional drilling concentrates activity at entry and exit points, leaving the ground in between untouched.
Prime Horizontal's approach to project planning reflects this. Pollution control is another area where the regulatory framework is tightening. Under the Offshore Petroleum Activities (Oil Pollution Prevention and Control) Regulations 2005 and the Offshore Chemical Regulations 2002, operators are required to report all releases of oil and offshore chemicals, with permits required for the use of drilling fluids and chemicals on site. Getting the bore right first time is therefore a direct compliance requirement, and one that demands precise guidance technology and experienced engineers from the outset.
The result is a smaller construction footprint, less soil disturbance, and a reduction in the time and resources needed on site.
Supporting the Energy Transition
Horizontal directional drilling plays a role in the infrastructure that the energy transition depends on.
The UK government's Clean Power 2030 Action Plan sets out that demand for electricity could more than double by 2050, requiring a fourfold increase in low carbon electricity generation, with most expected to come from renewables. Wind and solar installations require cable routes that often crossroads, rivers, and areas of environmental sensitivity. The National Policy Statement for Renewable Energy Infrastructure (EN-3) sets the planning framework within which those projects must be delivered. HDD is well suited to meeting those requirements, allowing necessary connections to be made with minimal disruption.
Prime Horizontal has been working in this space for decades, providing guidance services for a wide range of infrastructure projects across Europe, North America, Australia, and Southeast Asia. We’re proud to stock Original V-Series Jumbo Rock Reamers, which have been in service since 2014 and are capable of opening bores from 4.5 inches to 72 inches across a wide range of ground conditions.
Fully field-replaceable and site-changeable, they are designed to keep projects on track and reduce downtime, minimising the time heavy equipment needs to be on site.
Romsdalsgondolen Mountain Project
Our team of experts installed a record-breaking project in the breathtaking Romsdalsgondolen mountains of Norway. Installing a steel pipe for gas, water and electricity required a blend of skill, precision and experience.
The terrain was granite, and so required use of our Gyro Module, combined with Mud motor, and At Bit Inclination Assembly (ABIA). Our specialists entered at a 90-degree inclination, and exited at 141 degrees. The ABIA ensured we were notified of any change in inclination on its course. The drill covered a depth of 690m, at a curve of 1300m, and covering a distance of 1340m.
This project achieved an impressive World Record of 690m HDD drilling elevation - an incredible feat!
Precision as an Environmental Safeguard
Prime Horizontal's approach has always been to develop solutions that work in the field, not just in theory. With over 500 combined years of field experience across engineering teams, we bring a depth of practical knowledge that sets us apart. When ground conditions shift, or a project doesn’t go to plan, that experience is what makes the difference.
A Method That Makes Environmental Sense
Horizontal directional drilling will not solve every environmental challenge in infrastructure construction, but it is a method that consistently reduces the impact of the work being done. Less surface disruption, smaller construction footprints, and the ability to protect sensitive habitats all contribute to a more responsible approach to underground installation.
In a rapidly evolving environmental and energy landscape, Prime Horizontal delivers the guidance technology the industry needs next.
Ready to discuss your next HDD project? Get in touch with the Prime Horizontal team today.