Hughes Christensen Drill Bit Catalog

Unique Geometry
Each Chipmaster is designed with a discontinuity at the transition
between the cutters and bit body. This limits contact between the
bit face and cuttings, encouraging cuttings to move quickly into
the junk slot and up the annulus. The combination of Black Ice
ultra-low friction cutters and the unique blade design create a
natural chip flow path that is not impeded by the bit body.
Rear Impact Hydraulics
As cuttings slide up the face of the polished cutters, they move directly
into the stream of two powerful nozzles. The first nozzle impacts the
cuttings from behind, breaking them into small manageable pieces.
Fluid from the second nozzle carries the debris up the junk slot.
Black Ice/CSE
Cutters
Gold Series Features
Chipmaster bits take advantage of many Gold Series
features to increase durability and provide high penetration
rates. Fracture resistant Stress Engineered Cutters
provide longer bit life and high ROP. Engineered Cutter
Placement maximizes bit life by matching cutter load to
bore hole stress distribution. Black Ice/CSE cutters
inhibit fracture initiation while lowering friction between
the cutter and the formation. The results are lower
torque and higher ROP.
Diamond Updrill
Natural diamond stones
protect the bit in highly
inclined well bores and
reduced the incidence
of ledges.
DuraSet Gauge
Two rows of tungsten
carbide blocks and one
row of cubic diamond
lowers gauge erosion
and wear in soft abrasive
formations.
HUGHES CHRISTENSEN 39