Informative guides on different drilling methods, their applications, and answers to frequently asked questions about geotechnical drilling in South Africa.
Odex drilling is a specialist overburden drilling system that simultaneously advances a casing through unstable ground while drilling. Learn how Odex works, when to use it, and why Geo Drill SA offers it nationally across all 9 provinces.
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Understanding the difference between auger and diamond core drilling is essential for selecting the right investigation method. This guide explains when to use each technique, cost considerations, and typical applications across South Africa.
Reverse Circulation (RC) drilling is the preferred method for mineral resource definition in South Africa. Learn how RC drilling works, its advantages over RAB and diamond core, and typical applications in the Bushveld Complex and Witwatersrand Basin.
Any development on dolomitic land in South Africa requires a specialist dolomite investigation. This guide explains SANS 1936 requirements, the dolomite risk zoning process, and why choosing a CIDB-registered contractor like Geo Drill SA matters.
Sonic drilling uses high-frequency resonance to advance a core barrel through unconsolidated materials with near-continuous core recovery. Discover why sonic drilling is the preferred method for brownfield investigations, contaminated land assessments, and urban geotechnical projects.
Sinkholes are a serious risk in South Africa's dolomitic regions. This guide explains what causes sinkholes, how to identify warning signs, what to do in an emergency, and how Geo Drill SA's 24/7 response team can help.
HDD allows pipelines, cables, and conduits to be installed beneath roads, rivers, and railways without excavation. Learn how HDD works, its advantages for urban infrastructure projects, and typical applications across South Africa.
Standard Penetration Testing (SPT) and Cone Penetration Testing (CPT) are the two most common in-situ tests in South Africa. This guide explains the differences, advantages, and when to use each method for foundation design and geotechnical investigations.
Get a free, no-obligation quote from Geo Drill SA — part of the Raphetha Group. We respond within 2 business hours.
Geotechnical drilling is the process of drilling boreholes into the ground to collect soil and rock samples, install monitoring equipment, or perform in-situ tests. It is used to understand ground conditions for construction, mining, and environmental projects across South Africa.
Odex drilling is an overburden drilling system that simultaneously advances a casing through unstable or collapsing ground while drilling. It is used for water wells, monitoring boreholes, and foundation investigations in loose sands, gravels, and boulder-rich soils. Geo Drill SA offers Odex drilling nationally across all 9 South African provinces.
Drilling costs vary based on the method, depth, ground conditions, and location. Contact Geo Drill SA for a free, no-obligation quote tailored to your project. Call +27 10 017 8845 or email quotes@geodrillsa.co.za.
Auger drilling is used for shallow soil investigation (up to 30m) in soft to medium ground. Diamond core drilling recovers intact rock core for detailed analysis and can reach depths of 500m+. Auger is faster and more cost-effective for surface investigations; diamond core is used when intact rock samples are required.
Yes. Geo Drill SA operates across all 9 South African provinces and neighbouring countries including Lesotho, Botswana, Zimbabwe, Eswatini, Mozambique, and Zambia. Our Gauteng head office at Block A, Hertford Office Park, 90 Berker Road enables rapid nationwide mobilisation.
Dolomite drilling is a specialist investigation required for any development on dolomitic land in South Africa (mainly Gauteng, North West, and Limpopo). It assesses the risk of sinkhole formation and is required by the NHBRC and local authorities. Geo Drill SA is SANS 1936 compliant for dolomite investigations.
Geo Drill SA can mobilise an emergency response rig to any Gauteng site within 24 hours and to other provinces within 48 hours. Call our 24/7 emergency line: 079 555 7453.
Yes. Geo Drill SA is CIDB registered and SANS 1936 compliant. We operate as part of the Raphetha Group and adhere to all relevant South African construction and mining health and safety regulations.
The Raphetha Group is a diversified South African business group. Geo Drill SA operates as a specialist geotechnical drilling entity within the Raphetha Group portfolio, bringing the group's resources and governance standards to every drilling project.
You can request a free quote by calling +27 10 017 8845, emailing quotes@geodrillsa.co.za, or completing the contact form on our website. We respond to all enquiries within 2 business hours.
Contact our team directly — we're happy to help with any drilling enquiry.