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Oct 25

Diamond cone drilling also called exploration diamond drilling, just as its name implies, it is used in the mining industry to probe the contents of known ore deposits and potential sites.

It uses a diamond encrusted drill bit to drill through the rock. The drill produces a “core” which is photographed and split longitudinally. Holes within the bit allow water to be delivered to the cutting face. This provides three essential functions — lubrication, cooling, and removal of drill cuttings from the hole.

diamond drilling rig

diamond drilling rig

Features of Diamond core drilling

 1 Much slower than reverse circulation (RC) drilling

Due to the hardness of the ground being drilled. Drilling of 1200 to 1800 metres is common and at these depths, ground is mainly hard rock. Diamond rigs need to drill slowly to lengthen the life of drill bits and rods, which are very expensive.

2 Diamond core drilling equipments

 Multi-combination rigs are a dual setup rig capable of operating in either a reverse circulation (RC) and diamond drilling role. One of the most important part is drill bit.

A Diamond cone drilling rig should be small and portable, such as those used in mineral exploration drilling, water wells and environmental investigations. Huge, capable of drilling through thousands of meters of the crust. Large “mud pump” circulate drilling mud through the drill pit and the casing, for cooling and removing the “cuttings” while a well is drilled. Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or mineral sample; and permanent living accommodation and catering for crews which may be more than a hundred.

 How to choose diamond core drilling solids control equipments?

 Same as drilling rig, solids control equipments of diamond core drilling should be small and porable, and the processing rate is not as large as other drilling method. Sometimes you only need a small flow rate high speed centrifuge to separate large cut points from the drilling mud, together with a mud tank and other equipments.

 To get the treating capacity the end-user required, GN solids control can provide a complete solution of Diamond core drilling solids control system.

written by GN Desander Desilter \\ tags: , ,


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