Borehole Orientation Survey Tool Borehole Inclination High Accuracy Wireless Remote Compass Digital Inclination Surveying Instrument Drill Hole Deviation Tool
Inclinometers are widely used in civil and geotechnical engineering to monitor the azimuth and slant angle for protecting from bore-accident, especially in directional engineering case. GDP Inclinometer is a small caliber instrument is used to measure the azimuth and slant angle in the non-magnetic bore whose diameter is larger than Ø46mm.
| 1. Measuring range of inclination: 0~45°, error ≤ 0.2°; |
| 2. Measuring range of azimuth: 0~360°, error ≤ 4° (1° ≤ inclination ≤ 45°); |
| 3. Static drift ≤ 2°, drifting nonlinearity ≤ 1°; |
| 4. Measuring mode: point measurement (frequency: 1 time / 140 s); |
| 5. Service life of the gyro > 1800 h; |
| 6. Serial port R232 for data transmission; |
| 7. Probe outer diameter of downhole instrument: φ40mm; |
| 8. Measured depth ≤ 2000m; |
| 9. Resistance to pressure of the probe ≤ 200kg/cm2; |
| 10. Working power of the instrument: AC220V±10%, 50Hz±10%; |
| 11. Working environment: |
| Temperature: -10°~60° |
| Humidity: 90% (40ºC) |
| 12. Probe overall dimension: φ40×2100mm |
| Weight: 3kg |
inclinometer consists of upper part, bottom part and an external stainless steel probe, said two instrument works independently. Each instrument consists of measuring part and measuring frame. The measuring part, which integrates all the measuring components, is supported by two needles on the measuring frame.
GDP-3D remote control digital compass inclinometer uses gravity acceleration sensor to measure the borehole Angle. The magnetoresistive sensor with giant magnetic effect is used to measure the geomagnetic field and magnetic vector of borehole direction. Through high precision digital conversion and processing, the top Angle and inclined azimuth Angle of the borehole are calculated. Because the sensor is all solid state, without any moving parts, not only high precision and reliability is very good. Its performance is much better than that of mechanical compass inclinometer. A maintenance-free rechargeable lithium battery is built into the instrument to provide power for the measurement. It does not require a power cable to run down the well, and can be connected only with a wire rope or drill tool. The use of hand-held remote control measurement, easy to use.
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