Schlumberger

8 1/2 in MDSiZ616(215.9 mm)

Product ID: 66800A0002 ER 26938


Design Specifications

Total Cutters54
Cutter Size16mm (5/8 in)
Face Cutters(23) 16mm
Gauge Cutters(6) 16mm
Cone Cutters(7) 16mm
Back-Up Cutters(18) 16mm
Total Stinger Element Count1
Blade Count6
Nozzles6 Standard Series 60N
Bit Connection4 1/2 Reg
Junk Slot Area, in212.909
GaugeLength: 2" Protection: Options Available
LengthMake-Up: 9.35 Overall: 13.538
Fishing NeckDiameter: 6.38 Length: 3.725

Operating Parameters

Bit SpeedSuitable for Rotary & PDM
Weight-on-Bit4,000 To 40,000 (lbs)
1,818 To 18,180 (daN)
2 To 18 (Tonnes)
Flow Rate galUs/min300 To 800
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque16,600 To 21,600 pound ft
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.

style

style

The PX feature places thermally stable diamond inserts (TSP) on the gauge to maximize gauge retention and extend bit life.

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.

Low Exposure (MDOC – Managed Depth Of Cut) Cutter backing raised to minimize excessive depth of cut because of formation heterogeneity to reduce cutter loading and minimize torque in transitional drilling. Minimizes cutter breakage and extends bit life.

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.