Skip to main content

Marine drilling requires a deep understanding of Australian water environments and weather conditions.

J&S Drilling has a highly skilled team of marine drillers who deploy advanced equipment to maximise productivity, minimise delays and avoid environmental impact. We get the critical data you need to design resilient coastal infrastructure that shapes communities on land and over water.

The Marine Drilling Experts

Why choose J&S?

Specialist marine drillers

200+ years combined marine drilling experience with deep knowledge of Australian coastal conditions, regulatory requirements and environmental considerations. 

Seamless project management

Dedicated marine project managers coordinate logistics, including vessel scheduling, tide planning, and compliance. We ensure your project is completed on time and within budget. 

Environmental compliance

Proven track record working in environmentally sensitive areas. Our environmental management systems ensure projects meet the strictest marine conservation requirements.

Certified marine operations

DNV-GL-certified marine equipment meets international offshore regulations. Our marine operations comply with AMSA regulations and maintain the highest safety standards.

J&S is ready when you are. Get your detailed project quote today!

get a quote

Marine Drilling for WA, NT and QLD 

Our near shore drilling methods

Rotary mud drilling

Execute complex seabed investigations with environmentally approved drilling fluids that ensure enhanced borehole stability in all offshore ground conditions.

Diamond core drilling

Precision diamond core drilling at diameter capabilities of NQ, HQ, PQ with high recovery rates. This method allows seamless precision testing through the drill string in the marine sediments.

Sonic drilling

Advanced high-frequency sonic technology enables continuous sampling across diverse geological formations in challenging marine environments.

Direct push

Efficiently advance marine sampling tools through soft formations using continuous advancement techniques. Ideal for marine sediment characterisation.

Overwater Drilling Testing & Samples

Critical data collection

Determine in-situ soil and rock properties with precision and reliability. Geotechnical teams trust us to deliver reliable samples efficently.

  • Down-hole surveys: Accurate borehole positioning
  • SPTs / DCPs: Standard penetration testing and dynamic cone penetrometer
  • Push tubes / U-tubes: Collect soil samples with minimal disturbance, preserving their natural structure and composition, essential for accurate laboratory analysis
  • Sonic sampling – single / dual wall: Superior sample recovery with minimal disturbance
  • Dennison sampler: High-quality undisturbed sampling techniques
  • Vane shears: In-situ soil strength determination
  • Packer testing (NQ, HQ, PQ): Permeability and hydraulic conductivity assessment
  • Piston sampler: Premium undisturbed sampling for laboratory analysis 

Latest Projects

Drilling just delivered

J&S Drilling marine drilling project
Alkimos Seawater Desalination Plant, WA

Precision Drilling in Tough Marine Conditions
Ocean Driller II
Ocean Driller II, Pilbara WA

Shipping Bypass Channel Investigation

All projects

client reviews

Heard on site

“On behalf of KNPL, your team has done a incredible job. The level of professionalism, pride and care factor the team has shown in their work has been outstanding. It’s been a pleasure to see how consistently high standards are maintained, both in quality of work delivered and in the way the team carry themselves each day. The commitment to safety and the strong team culture you have at J&S is equally as commendable. Thank you for creating a safe and supportive work environment and delivering us a safe and successful drill program. Much appreciated.”
“I would like to take the time to thank you for the work that was completed at our home. The crew that completed the drilling were exceptional, they explained the complete process and did it without fuss. I think I’ve learnt a little about drilling myself or at least more than you thought I did. Once again thank you I will certainly be very happy to recommend you to anyone.”

Frequently Asked Questions

Answers to your marine drilling questions

We’ve supported critical marine infrastructure across Australia, including channel dredging programs, marina developments, harbour and wharf developments, and breakwater investigations. Our portfolio includes container terminals, bulk handling facilities, floating docks, fixed piers, and coastal protection structures requiring deep foundation design.

Our pre-dredge investigations determine optimal dredging depths and subsurface conditions, while post-dredge verification ensures project specifications are met.

We implement comprehensive environmental management plans, which include marine fauna monitoring, water quality assessments, and sediment disturbance protocols. We ensure compliance with marine park regulations, fisheries requirements and coastal protection guidelines.

We use differential GPS positioning systems and down-hole survey tools for accurate borehole positioning. Our marine survey protocols integrate with hydrographic surveys and provide precise coordinates essential for marine infrastructure design and regulatory submissions.

Mobilisation depends on vessel availability, equipment requirements, weather windows, and regulatory approvals. Best to get in touch and chat to us!

Get a
quote

J&S is ready when you are.
Get your detailed project quote today!

call us
get in touch
Partnerships