Schlumberger

12 1/4 in Z619(311.15 mm)

Product ID: 66503A0001 ER 26730


Design Specifications

Total Cutters41
Total Stinger Element Count33
Stinger Element Size9/16 in
Cutter Size19mm (3/4 in)
Face Cutters(28) 19mm
Gauge Cutters(7) 19mm
Cone Cutters(6) 19mm
Blade Count6
Nozzles6 Standard Series 60N
Bit Connection6 5/8 Reg
Junk Slot Area, in239.218
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 13.257 in Overall: 18.195 in
Fishing NeckDiameter: 8 in Length: 5.131 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit15 To 35 (lbs)
7 To 16 (daN)
To (Tonnes)
Flow Rate galUs/min600 To 900
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque47,300 To 47,800 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.