Designed for medium to high mud flow drilling operations, the SMKST-MWD (P Series) offers two models—P350 and P650—that adapt to different borehole sizes and hydraulic conditions. The system integrates key downhole sensors for accurate real-time measurements of inclination, azimuth, and toolface angle, and uses positive pulse telemetry for efficient signal transmission up to 5000 meters. The rugged design ensures operation under 150°C and 120MPa, with excellent shock and vibration resistance.
Downhole Operating Conditions
| Specification | MWD(P350) | MWD(P650) |
|---|---|---|
| Recommended Mud Flow Rate | 9.5–22.1 L/s | 14.2–41.0 L/s |
| Mud Type Compatibility | Water-based / Oil-based | Water-based / Oil-based |
| Max Drilling Fluid Density | 2.2 g/cm³ | 2.2 g/cm³ |
| Max Sand Content | < 1% | < 1% |
| Max Drilling Fluid Viscosity | < 50 cp | < 50 cp |
| Max Operating Temperature | 150°C | 150°C |
Technical Specifications
| Parameter | Specification |
|---|---|
| Inclination Measurement Range | 0–180°, Accuracy ±0.1° |
| Toolface Angle Range | 0–360°, Accuracy ±1.0° |
| Azimuth Range | 0–360°, Accuracy ±1.0° |
| Operating Temperature Range | –20°C to 150°C |
| System Software Compatibility | Windows-based systems |
| Pulser Working Life | ≥ 400 hours |
| MTBF | ≥ 1000 hours |
| Telemetry Signal Depth | ≥ 5000 meters |
| Gamma System Accuracy | ±5% |
| Gamma Sensitivity | 1 count per API |
| Vertical Resolution | 6” (236 mm) |
| Max Shock Tolerance | 10000 m/s² (0.2 ms, ½ sine wave) |
| Max Vibration Tolerance | 200 m/s² (10–200 Hz) |
| Power Supply | Downhole turbine generator |
| Tool Outer Diameter | Φ45 mm |
| Pressure Rating | 120 MPa |
| Tool Length | 6 m (8 m with GAMMA module) |
Pulser Performance Specifications
| Parameter | Specification |
|---|---|
| Max Working Pressure | 120 MPa |
| Maintenance-Free Operating Time | 400 hours |
| Max Working Temperature | 150°C |
| Max Transmission Depth | > 5000 meters |
In addition to supplying MWD tools, SMKST also provides directional drilling services, along with a wide range of oilfield equipment and consumables. These include but are not limited to mud pump liners, shale shaker screens, and other essential downhole tools and components for efficient oil and gas drilling operations.