High-speed downhole motor, a novel downhole drilling tool with high speed of 400-1000RPM, is designed by Orient for drilling such formations as volcano rock, basalt and other super hard strata. It is a wise choice to reduce circular pressure consumption, increase displacement, improve pumping efficiency and accelerate machinery drilling speed through the integration with impregnated bits.
The main parameters of high-speed downhole motor are as follows:
|
The main parameters of high-speed downhole motor |
|||
|
Parameter |
2LZ127-11 |
2LZ127-11 (II) |
2LZ172-9 |
|
Output Torque (N·m) |
1200 |
1200 |
4000 |
|
Pressure Drop (MPa) |
10 |
14 |
12 |
|
Recommended Displacement (L/S) |
15 |
15 |
25 |
|
Rotary Speed (rpm) |
480 |
760 |
450 |
|
Weight on Bottom (T) |
4-6 |
4-6 |
6-7 |
Features on High-Speed Downhole Motor:
|
Specification |
2LZ-127-7 |
|
Stage |
2/3 |
|
Motor Displacement Range (l/min) |
11.6-23.3 l/s |
|
Power (HP) |
178 |
|
Motor Rotary Speed (rpm) |
298-596 |
|
Operating Torque (N·m) |
2096 |
|
Maximum Torque (N·m) |
2934 |
|
Motor Pressure Drop (MPa) |
7 |
Linshen X Well
|
Spud-in Time |
Apr 7th,2014 |
Spud-out Time |
Apr 15th,2014 |
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|
Net Drilling Time |
168h50min |
Drilling Section |
4036m~4226m |
Footage |
190m |
|
Penetration Rate |
1.13m/h |
Spud-out Diameter |
150.4mm |
Reused or Not |
Yes |
|
WOB |
40kN |
Rotary Speed |
60+downhole motor |
Pump Pressure |
17MPa |
|
Density |
1.20g/cm³ |
Viscosity |
60s |
Displacement |
17L/s |
|
Stratum lithology |
Sinian System,Liangjiashan Formation (volcanic intrusive rocks) |
POOH Reason |
Drop of Pump Pressure |
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Comparison of Usage:
|
Bit Type |
Penetration Footage |
Net Drilling Time |
Penetration Rate |
Drilling Section |
|
Impregnated Diamond Bits |
190 |
168.8 |
1.13 |
4036-4226m |
|
Cone |
11 |
29.67 |
0.37 |
4025-4036m |
|
Increasing multiples |
17.27 |
5.69 |
3.05 |
Static Temperature145°C |
Moxi X Well
|
Well Number |
Moxi X Well |
|
Drilling Team |
Chuanqing70082 |
|
Downhole Motor Type |
2LZ-172 |
|
Drilling Depth (m) |
4940.4 |
|
POOH Depth (m) |
5065.79 |
|
Footage (m) |
125.39 |
|
Net Drilling Time (H) |
91.45 |
|
Penetration Rate (m/h) |
1.36 |
|
Achievement |
Novel Application of Impregnated Diamond Bits |
Moxi X1 Well
|
Well Number |
Moxi X Well |
|
Drilling Team |
Chuanqing 7003YC |
|
Downhole Motor Type |
2LZ-172 |
|
Drilling Depth (m) |
4885.58 |
|
POOH Depth (m) |
5065.52 |
|
Footage (m) |
179.94 |
|
Net Drilling Time (H) |
120.9 |
|
Penetration Rate (m/h) |
1.49 |
|
Achievement |
Novel Application of Impregnated Diamond Bits |