In RC drilling, keeping your drill string clear and your rig running is the name of the game. When blockages occur – and they do – every minute spent troubleshooting adds to your downtime, costs, and frustration. The solution? A blow down system that...
One of the common problems associated with Reverse Circulation Inner Tubes was the premature wear and grooving caused by the traditional O-ring sealing system. Inner Tubes with O-rings were also prone to bouncing and spinning that further reduced the overall life of...
Back in 2011, Harley Hollier at Harlsan was approached by a customer regarding a problem they had drilling 360m deep Reverse Circulation holes. Some of the holes had deviated more than 5 degrees off the intended azimuth when measured at the bottom of the hole. As the...
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