Directional Down Hole Motor
Product Description
Directional screw drilling motor has great anti-drop ability. The most outstanding aspects of directional PDM drill are large output torque, strong anti-overload ability and less jigging motion. In addition, Directional downhole motor also has reasonablely simple structure, safe and reliable quality, low failure rate and short construction period.
Principle: Downhole motor is a kind of downhole dynamic drilling tool upon the power of drilling mud. Mud stream from the outlet of mud pump flows through a by-pass valve into the
motor. This stream produces pressure loss at both inlet and outlet of the pump to push the rotor into rotating, and to transmit the torque and speed onto the bit. The downhole motor
property mainly depends upon its property parameters.
Constitution: Downhole motor is composed of five assemblies: by-pass valve, motor, anti-drop, cardan shaft and drive shaft.
The down-hole motor is a positive-displacement down-hole motor. It converts the high pressure fluid power of the mud into the mechanical energy of drill bit rotation. The motor is
widely used in the drilling, making inclination, adjusting azimuth, coring, reaming, side tracking and work over for the directional wells, horizontal wells side tracked wells and straight
wells of oilfields and coal mines. In addition, it is suitable for compound drilling and traversing and other special works.
Table for directional downhole motors' specifications and models:
Code of motor Unit 5LZ185×7.0 7LZ185.5×7.0 5LZ197×7.0 5LZ197.5×7.0 5LZ203×7.0 Recommend Hole Size mm 215-244 215-244 244-311 244-311 244-311 Recommend Hole Size in 81/8-95/8 81/8-95/8 91/8-123/6 95/8-121/8 95/8-121/4 Input flow Rate L/S 20-35 20-35 20-40 20-40 20-40 Motor Pressure Loss MPa 4 4 3.2 4 3.2 Speed of the Bit r/min 184 173 61-122 85-160 70-155 Working Torque N.m 5436 5939 8067 7223 7002 Delay Dynamic Torque N.m 8154 8908 14118 12640 12289 Output Power KW 80-140 80-140 57.6-115.2 72-144 57.6-126.7 Recommend Drilling Weight KN 120 120 120 130 150 Maxing Drilling Weight KN 240 240 240 260 240 Thread Connection Top 41/2REG 41/2REG 51/2REG 51/2REG 51/2REG 63/8REG 63/8REG 63/8REG Thread Connection Bottom 61/2REG 61/2REG 63/8REG 63/8REG 63/8REG The Drill Length mm 8120 8090 7998 8980 8100
| Code of motor | Unit | 5LZ203.5×7.0 | 5LZ216×7.0 | 5LZ216.5×7.0 | 5LZ244×7.0 | 7LZ244.5×7.0 |
| Recommend Hole Size | mm | 244-311 | 273-323 | 273-323 | 311-445 | 311-445 |
| Recommend Hole Size | in | 95/8-121/4 | 103/4-123/4 | 103/4-123/4 | 121/2-171/2 | 121/2-171/2 |
| Input flow Rate | L/S | 20-40 | 22-48 | 22-48 | 50-75 | 50-75 |
| Motor Pressure Loss | MPa | 4 | 3.2 | 4 | 3.2 | 4 |
| Speed of the Bit | r/min | 70-155 | 61-138 | 61-138 | 91-136 | 91-136 |
| Working Torque | N.m | 8778 | 8895 | 11117 | 15124 | 18905 |
| Delay Dynamic Torque | N.m | 15362 | 15567 | 19455 | 26468 | 33085 |
| Output Power | KW | 72-158.4 | 63.36-138.29 | 79.2-172.8 | 144-216 | 180-270 |
| Recommend Drilling Weight | KN | 170 | 190 | 238 | 200 | 250 |
| Maxing Drilling Weight | KN | 260 | 300 | 378 | 360 | 450 |
| Thread Connection Top |
| 51/2REG | 63/8REG | 63/8REG | 63/8REG | 63/8REG |
| 63/8REG | ||||||
| Thread Connection Bottom |
| 63/8REG | 63/8REG | 63/8REG | 73/8REG | 73/8REG |
| The Drill Length | mm | 8990 | 8100 | 8950 | 9480 | 10280 |
Product Categories : Drilling Motors > Motors For Drilling