Exploration / Rods and Casing
XQ® Coring Rods
THE NEXT GENERATION OF DEEP HOLE ROD
Launched in 2018, Patented XQ wireline coring rods feature a combination of exclusive heat treatments and innovative engineering to provide the ultimate in performance and longevity.
STRONGER
XQ has an increased negative flank angle of -20 degrees compared to -10 degrees in RQ™ rods. The increased negative flank angle, combined with double-start threads, nearly eliminates box bulging and provides greater strength in high torque applications.
The unique combination of -20 degree self-locking reverse flank angle on the threads and symmetrical load distribution makes XQ™ wireline coring rods some of the deepest-rated coring rods in the market.
Self-Locking Reverse Flank Angle
XQ has an increased negative flank angle from of -20 degrees compared to -10 degrees in RQ™ rods. The increased negative flank angle combined with the double-start threads, nearly eliminate box bulging and provides greater strength in high torque applications.
EASIER MAKE/BREAK AND AUTOMATION
The patented XQ rods feature a unique thread entry, self-aligning, double-start threads so mating engages smoothly, nearly eliminating jams for the best make-and-break around.
Automation compatible for hands-free rod handling, where making and breaking of rods is mechanized; the ultimate safety upgrade.
Ergonomics are improved by eliminating back-turning and featuring a coarser pitch with less rotation, for faster hand make-up. Generating less fatigue, lower stress on the wrist, and less potential for repetitive use injuries.
LASTS LONGER
Longer-lasting rods mean getting more meters per rod and replacing rods less often, directly adding value to the bottom line.
Pin Case Hardening: Other drill rods are typically hardened to 38 HRC. Boart Longyear coring rods are pin case hardened to maximum hardness – 60 HRC, creating a significant difference between pin and box and minimizing rapid galling that other threads experience. In repeated “make and break” field testing, other non-case-hardened rods were shown to fail at between 12 and 100 cycles, whereas XQ joints withstood more than 600 cycles.
oart Longyear’s W-Wall™ feature patent-pending, double-upset tubing, up to 30 percent lighter, thanks to its thin-walled mid-body. The lighter drill string increases the drill rig’s depth capacity and reduces fatigue during manual tripping. The enlarged inner diameter also increases wireline tripping speed by 50%, improving productivity. On an 800-meter hole, simply changing from a straight wall to a W-Wall rod can save 2 shifts or put 20% more core in the box
W-Wall coring rods with the standard wall thickness in the middle of the rod eliminate premature mid-body wear and resist bending, performing like straight-wall tubing.
