Offshore Foundation Drilling Services
Precision Drilling for Challenging Offshore Foundations
Tardra delivers specialist offshore drilling services for wind farm and marine foundation installations in complex seabed conditions.
Our team designs, operates, and advises on pile top and subsea drilling campaigns involving large-diameter sockets, under-reaming, and high-torque requirements. Whether working from a jack-up or a floating vessel, we ensure safe, controlled, and technically sound foundation drilling with minimal downtime.
Navigated Challenges
Refusal during pile driving in hard or mixed seabed strata
Deep socket drilling for monopile and jacket installations
Under-reaming to achieve load-bearing or grout bond requirements
Verticality and inclination management in sloped or uneven seabeds
Hole cleaning and cuttings removal in poor visibility or tight tolerances
Confidence in Delivery
Design and operation of drill rigs up to 9.5m diameter
10km+ of executed large-diameter socket drilling globally
RCD (reverse circulation) and under-reaming capabilities
Deployment from jack-up or floating vessels with heave compensation
End-to-end planning, execution, and problem-solving support
Example Projects
Gwynt y Môr (UK)
Under-reamed 6.0m socket drilling for jacket foundations
Courseulles (France)
9.5m subsea drill rig deployment for monopile sockets
Formosa 2 (Taiwan)
Jacket pin pile relief drilling using RCD
Limetree (US Virgin Islands)
Drilling from floating vessel at 270m water depth
F.A.Q s
What size piles can Tardra drill?
Our team has experience with diameters from 2.2m to 9.5m, including under-reaming.
Can Tardra drill from floating vessels?
Yes. We mobilize using Barge Master heave compensation platforms and floating assets.
How long does mobilization take?
Subject to location and equipment, typical mobilization is 4–6 months.
More of our specialised engineering and execution services.
Operational Support
Hands-on help offshore—drilling oversight, casing stability and cuttings management.
Installability & Planning
Site-specific risk analysis, vessel compatibility, and method development.
Equipment & Advisory
Impartial, expert guidance on tooling, rigs, and drilling methodologies.
Start Your Drilling Plan Today
Our engineers are ready to help you assess your foundation needs, optimize your drilling strategy, and reduce risk from day one.