Track mounted Reverse Circulation rig (RC) drilling is similar to air core drilling, in that the drill cuttings are returned to surface inside the rods. The drilling mechanism is a pneumatic reciprocating piston known as a "hammer" driving a tungsten-steel drill bit. RC drilling utilizes much larger rigs and machinery and depths of up to 500 meters are routinely achieved. RC drilling ideally produces dry rock chips, as large air compressors dry the rock out ahead of the advancing drill bit. RC drilling is slower and costlier but achieves better penetration than RAB or air core drilling; it is cheaper than diamond coring and is thus preferred for most mineral exploration work.

Why Choose Us?

WE REALLY LOVE WHAT WE DO & OUR WORK ON EVERY PROJECT TRULY REFLECTS THAT..

With years of experience and knowledge behind our team, BDECL Services are experts in the application of dual wall reverse circulation methods. In extreme drilling conditions of this technique, our experience will offer the maximum sample recovery achievable. Major advantages of this include:

  • Recovery of uncontaminated samples in high water bearing formation
  • Faster penetration than standard rotary or core drilling
  • Lower costs due to increased production
  • Reduced bit and mud consumable costs
  • No lost circulation even through fractures, voids and joints
  • No surface casing as the outer pipe supports the bore hole while circulation is maintained internally.
  • Straighter holes with flush joint pipe while drilling with RC.