Schlumberger

8 1/2 in R616(215.9 mm)

Product ID: 66758A0001


Design Specifications

Total Cutters65
Rolling Cutter Count14
Cutter Size16mm (5/8 in)
Face Cutters(28) 16mm
Gauge Cutters(6) 16mm
Cone Cutters(7) 16mm
Back-Up Cutters(24) 16mm
Blade Count6
Nozzles6 Standard Series 50N
Bit Connection4 1/2 Reg
Junk Slot Area, in212.316
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 10.469 Overall: 14.657
Fishing NeckDiameter: 6 Length: 3.653

Operating Parameters

Bit SpeedRotary Steerable BHA
Weight-on-Bit4,000 To 35,000 (lbs)
1,818 To 15,908 (daN)
2 To 16 (Tonnes)
Flow Rate galUs/min325 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.

The ONYX 360 rolling cutter feature allows the PDC element to rotate enabling the full circumference of the diamond edge to be utilized. This prevents a wear flat developing in only one place thereby maintaining cutter sharpness for improved drillbit durability.

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.

Extended gauge pad length