Environmental Drilling Contractors

Environmental Drilling Contractors



Site Investigation

Terratest is a leading provider of environmental drilling for almost any type of site or condition from difficult access and restricted headroom, to overwater projects.

We provide push tube, dual tube, solid and hollow flight augering, sonic drilling and rotary air drilling. We can conduct continuous soil sampling, install a variety of groundwater and soil vapour monitoring well sizes including nested and specialised instrumentation. Our groundwater profiling tooling can provide discrete soil and water sampling in the one drive.

Drilling is supported by dedicated Non Destructive Drilling crews who can safely concrete core and air/water vacuum excavate boreholes in advance of drill crews. On many sites this combined approach is an efficient and smarter way to complete an incident free investigation on time and on budget.

Drilling Contractors  



Chemical Injection / ISCO

Terratest is experienced in the safe application of various chemical oxidants including permanganate and persulfate through both direct push (bottom up/ top down) and through purpose built injection wells. We maintain a variety of specialist pumps, multi well manifolds, tooling and purpose built mix and batch tanks including flow rate and pressure monitoring.

Safety is paramount during these operations and our experienced crew utilise various safeguards, bunding, shields and PPE as the site requirements dictate.

Diamond Drilling  



Extraction Wells

Our Sonic drill capability allows Terratest to install extraction or pump and treat wells as large as 150mm in various formations. The ability to rapidly set surface casing and telescope to depth provides many advantages ensuring the well is installed as designed and to the required zone.

Exploration Drilling