Diamond Core Drilling

DMA offers a complete surface diamond drilling service with a full range of sizes and capabilities. Our expertise are unsurpassed in West Africa and we have an enviable reputation for delivery in hard drilling situations.

Directional Drilling

DMA utilises down hole motors and steering tools, providing the capability to drill from the surface into known underground works. Using this precise technique enables multiple secondary holes to be drilled from the original master hole. This reduces the need to move and re-drill new pilot holes to produce the same result.

Reverse Circulation Drilling

Our knowledge and experience of RC drilling is virtually unsurpassed in the industry. Using a RC drill pipe, the sample is returned uncontaminated though the inner pipe to the surface sampling equipment. By utilising this technique, DMA can maximise the geological sample recovery in adverse drilling conditions.

Grade Control Drilling

Grade control drilling is an effective tool in adding value to mineral exploration operations. This is achieved as grade control drilling is carried out in conjunction with ongoing surface and mining operations. It improves efficiencies, enhances the project management of operations and aids the verification that mined ores
contain the minerals expected.

Geotechnical Drilling

This technique is utilised to determine soil and rock characteristics for a variety of purposes including construction and soil stabilisation. DMA utilises mud rotary and diamond-coring drilling methods to support the work of civil engineers and geologists.