ZITN 85℃ GDS900-A Gyroscopic Directional Sensor is a new-generation orientation sensor designed for Measurement While Drilling (MWD) to accurately measure wellbore inclination and azimuth.
By utilizing a built-in high-precision gyroscope and accelerometer, it directly determines the borehole's inclination and azimuth angles. This innovative solution fundamentally addresses the industry challenge of conventional magnetic orientation sensors failing in strong magnetic interference environments, providing reliable and true inclination and azimuth data under various complex geological and operational conditions.
Application
MWD (Measurement While Drilling)
Logging operations in oil, coal, and geological exploration
Operations in strong magnetic interference environments, such as:
- Exploration and development in magnetic mining areas
- Dense vertical well clusters
- Surveying inside casing or steel pipes
Features
Absolute Immunity to Magnetic Interference: Azimuth measurement is based on the gyroscopic north-seeking principle, completely independent of the Earth's magnetic field and unaffected by any magnetic environment.
High-Precision Measurement: Integrates a high-precision gyroscope and accelerometer to ensure accurate inclination and azimuth data.
Rugged and Durable: Offers excellent resistance to vibration and shock, suitable for harsh drilling environments.
Compact Structure: Features a small, miniaturized design for easy integration into various MWD tools.
Specification Parameters
|
No. |
Item |
Specification Value |
|
1 |
Azimuth Range |
0°~360° |
|
2 |
Azimuth Accuracy |
±1°(0.5°≤Inclination≤50°); ±1.5°(50°≤Inclination≤80°) |
|
3 |
Inclination Range |
0°~180° |
|
4 |
Inclination Accuracy |
±0.1°(0°~180°) |
|
5 |
Gravity Tool Face Angle Accuracy |
±2°(Inclination > 3°) |
|
6 |
North Tool Face Angle Accuracy |
±3°(Inclination ≤ 3°) |
|
7 |
Gravity Sum |
0.997G~1.003G(-40℃~+85℃) |
|
8 |
Operating Temperature Range |
-40℃~+85℃ |
|
9 |
Storage Temperature Range |
-40℃~+85℃ |
|
10 |
Input Voltage Range |
12V~36V |
|
11 |
North-Seeking Time |
<3min |
|
12 |
Power Consumption During North-Seeking |
<7W |
|
13 |
Power Consumption Without North-Seeking |
<1W |
|
14 |
Insulation Resistance |
50MΩ(50V) |
|
15 |
Communication Interface |
RS485 |
|
16 |
Baud Rate |
9600~460800bps (Default 9600bps) |
|
17 |
Vibration Resistance |
12g, 20~2000Hz |
|
18 |
Shock Resistance |
1000g, 0.5ms, Half-Sine Wave |
|
19 |
Dimension |
φ41mm×574.5mm |
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