Schlumberger

17 1/2 in Z616(444.5 mm)

Product ID: 66272B0001 ER 26522


Design Specifications

Total Cutters78
Total Stinger Element Count55
Stinger Element Size9/16 in
Cutter Size16mm (5/8 in)
Face Cutters(46) 16mm
Gauge Cutters(6) 16mm
Cone Cutters(20) 16mm
Back-Up Cutters(6) 16mm
Blade Count6
Nozzles9 Standard Series 60N
Bit Connection7 5/8 Reg
Junk Slot Area, in270.352
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 13.306 in Overall: 18.494 in
Fishing NeckDiameter: 9.38 in Length: 3.461 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit15,000 To 60,000 (lbs)
6,818 To 27,270 (daN)
7 To 27 (Tonnes)
Flow Rate galUs/min700 To 1450
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque61,850 To 79,800 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.

The center location of the Stinger conical diamond in the bit enhances its stability to mitigate whirl and other artifacts that waste energy and reduce ROP. The Stinger element also provides an efficient mechanism to drill the very center of the borehole.

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.