Open Hole Drilling is an effective method of borehole drilling which is carried out using air mist or water/mud flush. It’s commonly used for tasks like detecting coal, or even historically mined coal. It’s also a method used for dewatering/soakaways, water wells and geothermal drilling.
Symmatrex overburden systems used are:
Open hole drilling is used as a quick and efficient method of gathering important information from a borehole survey. Specific drill bits are used depending on the geology and rock formation. The drill string and is rotated mostly vertically but sometimes horizontally, depending on the specific needs of the job.
Drill bits (drag bit, Polycrystalline Diamond (PCD), Tri-cone/Rock Rollers) or down the hole hammers (DTH hammer) have to be removed and swapped around the end of the drill string occasionally when different strata is encounter in the borehole.
Each specific drill bit has its own strengths and is suited to specific tasks. A drag bit is used for cutting soft materials, such as soil, clay and sand. A tri-cone/rock roller is used for drilling medium strength materials, such as boulders and gravels. A PCD bit or DTH hammer is used to drill hard materials, such as rock formation.
This is by far our most common method of drilling. This can be carried out using either air mist or water/mud flush.
This is an increasingly popular technique of drilling for obtaining windowless samples in soil, over burden and made up ground.
This is an effective method of drilling which can be carried out using air mist or water/mud flush and is commonly used for tasks such as detecting coal or even historically mined coal.
Our Putzmeister SP11 mixer is a single axle, road towable, stand alone high pressure grouter.
A typical water well can vary from 30m to 80m but can go much deeper depending on water tables.
An integrated system, offering an innovative solution to undisturbed soil core sampling, groundwater sampling and monitoring.
Site investigation is the initial process we carry out to collect and assess data.
Drilling is required to the suitable depth of the specific site. Typically raging from 100m – 150m.
Our diamond drilling services cut holes quickly and cleanly from 50mm to 300mm diameter and to various depths using barrel extensions. We can core through reinforced concrete, brickwork, stonework, block and asphalt. We use Xcalibre core machines and also hand held which are also ideal for confined spaces, all with a water feed to ensure a clean, dust-free environment.
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