Anyone who has drilled deep RC holes knows the problem (particularly in challenging ground): when the hole starts to wander, chatter increases and vibration comes up the string. Before long, you’re fighting deviation and swapping components. That combination –...
In the high-stakes world of reverse circulation (RC) drilling, efficiency isn’t just about the big-ticket items. Sometimes, it’s the overlooked components that make the biggest difference, for example the wear bend, also commonly referred to as the deflector box. Ask...
But they’re by no means new faces. If you’ve done business with Harlsan during the last 15 years, then you would have dealt with Matt Bevan. Matt started his journey with Harlsan as a Trades Assistant before moving into purchasing, drafting, despatch and...
Basics of Reverse Circulation (RC) Drilling – What is RC Drilling? Reverse Circulation, or RC, drilling uses drill rods with inner and outer tubes & is sometimes referred to as Dual wall or Dual Tube Drilling. Reverse circulation is achieved by blowing air down...
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