NEWSCO 8" 7/8 Lobes 4.0 Stage Motor
Torque Slope
15.82 ft-lb/psi
REV / Gal
0.170 rev/gal
0.045 rev/lpm
RPM
60-140 rpm
Flow range
300-900 gpm
1136-3407 lpm
Max Differential
944 psi
6509 kPa
Max Torque
14934 ft. lbs
20248 N-m
Stall Differential
1481 psi
10211 kPa
Stall Torque
23432 lb-ft
31770 N-m
Max Weight on Bit
142000 lbs
631 kN
Weight
3800 pounds
1724 kilos
Bit to Stab
30.00 in
Bit to bend
68.00 in
Slick OD
8.00 in
Wear Pad OD
8.50 in
Overall length
349.00 in
Top Connection
As Requested
Bottom Connection
6 ⅝" Reg
Predicted Build Rates (Degrees per 100 ft/30 m)
| Deg. | Slick | Single Stabilizer | Double Stabilizer | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Bend | Hole Size | Hole Size | Hole Size | ||||||
| Setting | 9 ⅞ | 10 ⅝ | 12 ¼ | 9 ⅞ | 10 ⅝ | 12 ¼ | 9 ⅞ | 10 ⅝ | 12 ¼ |
| 1.50 | 7.14 | 6.99 | 5.49 | 8.88 | 9.14 | 9.88 | 8.58 | 8.83 | 9.54 |
| 1.76 | 8.85 | 8.67 | 6.81 | 10.41 | 10.72 | 11.58 | 10.24 | 10.55 | 11.39 |
| 2.00 | 10.43 | 10.22 | 8.03 | 11.82 | 12.18 | 13.15 | 11.78 | 12.13 | 13.10 |
| 2.15 | 11.22 | 10.99 | 8.64 | 12.71 | 13.09 | 14.14 | 12.66 | 13.04 | 14.08 |
| 2.25 | 11.95 | 11.71 | 9.20 | 13.17 | 13.57 | 14.66 | 13.25 | 13.64 | 14.74 |
| 2.38 | 13.20 | 12.94 | 10.17 | 14.29 | 14.72 | 15.90 | 14.46 | 14.90 | 16.09 |
| 2.50 | 13.81 | 13.54 | 10.64 | 14.74 | 15.18 | 16.40 | 14.99 | 15.44 | 16.67 |
| 2.74 | 15.31 | 15.01 | 11.79 | 16.18 | 16.66 | 18.00 | 16.51 | 17.01 | 18.37 |
| 3.00 | 17.03 | 16.69 | 13.11 | 17.71 | 18.24 | 19.70 | 18.17 | 18.72 | 20.22 |
Suggested Max RPM Straight Well Sections
| Motor Size | Bit size | 0.00 | 0.38 | 0.75 | 1.15 | 1.50 | 1.75 | 1.83 | 2.00 | 2.15 | 2.25 | 2.38 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8" | 12 ¼ | 100 | 100 | 100 | 80 | 80 | 60 | 60 | 60 | 40 | 40 | 20 |
| 8" | 10 ⅝ | 100 | 100 | 100 | 80 | 80 | 50 | 50 | 50 | 40 | 40 | 20 |
| 8" | 9 ⅞ | 100 | 80 | 80 | 70 | 60 | 40 | 40 | 40 | 20 | 20 |
Suggested Max RPM Well Bore Build Sections
| Motor Size | Bit size | 0.00 | 0.38 | 0.75 | 1.15 | 1.50 | 1.75 | 1.83 | 2.00 | 2.15 | 2.25 | 2.38 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8" | 12 ¼ | 80 | 80 | 80 | 60 | 60 | 60 | 60 | 40 | 40 | 40 | 20 |
| 8" | 10 ⅝ | 80 | 80 | 50 | 50 | 40 | 40 | 40 | 40 | 40 | 40 | 20 |
| 8" | 9 ⅞ | 80 | 60 | 50 | 50 | 40 | 30 | 30 | 30 | 20 | 20 |
*The charts above display the maximum theoretical allowable rotation for optimal hole conditions. The RPM limits above are for optimal hole
conditions and normal drilling conditions and parameters. These should be reduced further when operating with high vibration, high rotary
torque, poor hole quality, high WOB, stick slip, hard stall events and other abnormal conditions.