SN-MWD-48HÂ Measurement While Drilling Tool
(Measurement-While-Drilling) MWDÂ + Gamma Module
Mud-pulse l Positive pulse system l Downhole tool retrievable
SN-MWD-48H is a kind of recoverable positive pulse wireless while drilling inclinometer, ingenious design, flexible assembly and easy to use. SN-MWD-48H mud pulse while drilling inclinometer consists of Surface equipment and downhole measuring instrument.
Surface Equipment includs: Power supply box, Remote data processor, Pressure transducer, Computer and connected Cables that perform data reception, processing, display and so on.
Downhole measuring instrument includes: directional probe (directional parameter measurement part), mud pulse generator, gamma probe, Fishing head, Stabilizer, battery, centralizer, salvage head etc.
| SN-MWD-48H Mud-Pulse MWD + GAMMA Module | ||
| Features | Specs | |
| Telemetry Type | Positive Pulse | |
| Tool Outer Diameter | (1.875†) Φ47.6mm | |
| Length of Tool | (a) Directional Only | 6.8m |
| (b) Directional & Gamma | 8.8m | |
| Max Operating Temperature | -25~150℃ | |
| Max Operating Pressure (MPa) | ≤ (20000psi) 137MPa | |
| evable | Yes | |
| Measurement Accuracy | Tool Face | +/- 1.0° |
| Azimuth range | 0~360° ±1.0° | |
| Inclination range | 0~180° ±0.1° | |
| Displacement | 100-1200USGPM096.3-75.7L/S | |
| Drilling collar size | 3½â€, 4¾â€, 6½â€, 7â€, 8â€, 9½â€, 12†| |
| Drilling plugging agent | 40-50ppb | |
| Sand content | ≤1% | |
| Gamma Detector Type | APIGR | |
| Sensor | Scintillating crystal + tomultiplier tube | |
| Gamma Real time | Yes | |
| Recommended Minimum Sample Period | 10 Seconds | |
| Measurement Range | 0~500API | |
| Measurement Accuracy | ±3API (0~150API) | |
| ±10API (150~500API) | ||
| Max Data Storage Capacity | 110,000 Groups | |
| Sensitivity | Better than 1.6 CPS/API | |
| Vertical Resolution | Better than 130mm | |
| Recommended Measurement Speed | ≤30 m/h | |
| Total length of the system | 6.8m (without Gamma) | |
| 8.8m (with Gamma) | ||
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