Downhole Drilling
We deliver expert downhole drilling solutions for mining, geotechnical and environmental applications—designed for accuracy, stability and performance in Australia’s most challenging geological formations.
Precision Where It Matters.
Performance When It Counts.
Download Our Capability Statement: Want a full overview of our expertise, track record and capabilities in HDD and downhole drilling? Download our Capability Statement to see why leading contractors and asset owners trust Eco Drilling.
Reverse Circulation (RC) Drilling
RC drilling is a cost-efficient exploration technique used for resource definition in hard and soft rock. It uses a dual-walled rod system to return uncontaminated samples from depth, making it ideal for coal, metals and mineral sands. Its speed and reliability help reduce exploration timelines while delivering clean, high-quality data essential for pit modelling and planning.
Fast, Cost-Effective Sampling
Provides rapid data across large tenements with reduced mobilisation cost.
Contamination Control
Reverse air flow ensures sample purity for improved confidence.
Ideal for Resource Projects
Suited to exploration in coal, iron ore and mineral-rich basins.
Air Core Drilling
Air core drilling is ideal for first-pass geochemical exploration in weathered or soft rock environments. It produces cleaner samples than RAB, allowing for more accurate interpretation in shallow, early-stage programs. Air core is particularly effective in regolith and sedimentary settings and often forms the foundation for follow-up RC or diamond programs.
Geochemically Reliable Samples
Cleaner returns than RAB drilling enable more accurate surface analysis.
Low Impact, High Return
Lightweight equipment leaves minimal environmental footprint.
Perfect for First Pass
Used to delineate anomalies ahead of deeper investigation.
Mud Rotary Drilling
Mud rotary drilling is used for unconsolidated formations like sands, gravels and silts. Drilling fluid stabilises the borehole while cooling the bit and lifting cuttings. This method is highly effective in water bore construction, hydrogeological studies and environmental well installations where ground stability is critical during operations.
Safe in Loose Formations
Drilling fluid supports hole integrity in soft, unstable strata.
Hydro Focused Delivery
Ideal for rural, agricultural and environmental bores.
Efficient in Groundwater Zones
Enables bore completion in aquifers and alluvial targets.
Diamond Coring
Diamond coring provides continuous core recovery for geological mapping, geotechnical analysis and metallurgical sampling. It’s essential in hard rock conditions where sample integrity matters. We offer multiple core sizes tailored to data resolution needs and use expert handling techniques to protect fragile lithologies during extraction.
High-Resolution Data
Delivers continuous core samples for lab testing and structure.
Multiple Core Sizes
PQ3, HQ3 and NQ3 options for diverse project needs.
Accurate Geological Logging
Preserves structure for mapping and interpretation.
Geotechnical & Monitoring Wells
We install advanced monitoring systems including piezometers, inclinometers, VWPs and TDR cables. These instruments help manage risk in mines, quarries and civil construction projects. Our team ensures safe, stable installation and seamless integration with geotechnical engineering programs.
Ground Movement Detection
TDR cables and inclinometers track deformation in slopes and pits.
Water Table Analysis
VWPs and piezometers capture hydrostatic data across depths.
Compliance-Driven Reporting
Output supports engineering plans and regulatory standards.
Pressure Grouting
Pressure grouting involves injecting cementitious or chemical grout to fill voids, seal fractures, or stabilise ground. It’s widely used in mining, dam construction and infrastructure reinforcement where consolidation and water control are critical. Our team assesses grout mixes, volumes and injection pressures to suit each site.
Void and Fracture Sealing
Prevents water ingress and ground movement.
Improved Bearing Capacity
Enhances foundation strength in civil and mining zones.
Tailored Injection Control
Mixes are adjusted based on real-time ground response.
Specialised Capabilities
Our specialised capabilities are what set us apart in the field. From complex geology and angled bore paths to sampling precision and deep experience, we know what’s required to drill safely, accurately and reliably. We’ve tackled extreme terrain, operated in coal and mineral zones with flipped stratigraphy and delivered where others couldn’t. Our crews are highly trained, our equipment is purpose-fit and our mindset is one of problem-solving. We bring depth and flexibility to every project we take on.
Angled Drilling Expertise
We deliver angled drilling at inclinations of 45 degrees plus or minus—ideal for sampling, monitoring, and precision drilling in confined or complex sites where vertical access isn’t practical.
Sample Integrity & Tolerance
We operate with precision where millimetres matter, delivering clean, lab-ready samples and reliable data to inform pit designs and extraction strategies.
Hard Ground Problem-Solving
With decades of field experience, we know how to read ground, adapt quickly and overcome conditions that routinely defeat less experienced drillers.