Schlumberger

9 7/8 in Z619(250.825 mm)

Product ID: 66542A0001 ER 26746


Design Specifications

Total Cutters35
Total Stinger Element Count27
Stinger Element Size9/16 in
Cutter Size19mm (3/4 in)
Face Cutters(24) 19mm
Gauge Cutters(6) 19mm
Cone Cutters(5) 19mm
Blade Count6
Nozzles6 Standard Series 60N
Bit Connection6 5/8 Reg
Junk Slot Area, in217.561
GaugeLength: 4" Protection: Options Available
LengthMake-Up: 13.112 Overall: 18.05
Fishing NeckDiameter: 7.5 in Length: 4.632 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit5,000 To 55,000 (lbs)
2,272 To 24,998 (daN)
2 To 25 (Tonnes)
Flow Rate galUs/min450 To 850
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque47300 To 47800 pound ft
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.

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Bit design and performance have been certified through the validation process prescribed by IDEAS simulation technology.

The Stinger's unique conical geometry delivers high point loading to fracture tough-to-drill formations more efficiently.

Placed on the blade, Stinger conical diamond elements offer improved impact resistance when drilling through inter-bedded formations or when hard inclusions such as chert or conglomerates are encountered.

Bit design is available with RockStorm PDC technology. These all-in-one cutters break the paradigm and provide ultimate wear resistance and ultimate impact resistance in the same PDC cutter. As a result, faster drilling rates are delivered while increasing overall run length.

Placing thermally stable diamond inserts (TSP) on the gauge maximizes gauge retention and extends bit life.