VM-NWG Vigor North-seeking Wired Gyro For Mining
Product Composition
Vigor North-seeking Wired Gyro for Mining(VM-NWG) breaks through the traditional method of azimuth measurement relying on the Earth's magnetic field. It successfully gets rid of the need for a magnetic free drilling tool protection environment. Relying on the communication and power supply of high-power long-distance directional drilling rigs through cable-passing drill pipes, it is not affected by magnetic interference.
It can be widely used in measurements in magnetically-interfered environments, enabling drilling in metal ore strata, re-measuring the trajectories of old wellbores in casings, casing window opening, and sidetracking operations.
Its north-seeking principle is to calculate the angle between the sensitive axis and the actual direction by using the projection of the angular velocity of the Earth's rotation on the horizontal direction along the gyro north-seeking sensitive axis and the algorithm corresponding to the north-seeking scheme. This angle value is the north-direction value.
Features & Benefits
- It can monitor multiple data in real time, including inclination angle, azimuth angle, tool face angle, total magnetic field, total gravitational acceleration, and signal strength.
- It is not affected by magnetic interference and does not require traditional magnetic - free protection.
- It has a short size, small volume, and light weight.
- The post-maintenance cost is low.
- It has a long service life, high measurement accuracy, and short north-seeking time.
- It has stronger resistance to temperature, vibration, and impact, and is stable and reliable in operation.
- There is no limit to the working duration, and it does not need to be calibrated regularly.
Technical Parameter
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Gyro North-seeking Wired Measurement While Drilling Probe |
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Part Name |
Quantity |
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Instrument Computer |
1unit |
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Keyboard |
1unit |
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Gyro North-seeking Wired Measurement While Drilling Probe |
1unit |
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Data Converter |
1unit |
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Computer-Probe Measurement Cable |
1piece |
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Computer-Data Converter Communication Cable |
1piece |
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Data Converter - Probe Measurement Cable |
1unit |
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Main Technical Indicators and Parameter |
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Main Technical Parameters of the Probe |
Indicators |
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Operating Voltage/Power |
DC15-55V/3W |
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Operating Temperature |
-40℃~80℃ |
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North - seeking Time |
≤3.5min |
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Inclination Angle |
Measurement Range |
-90°~+90° |
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Measurement Accuracy |
±0.1° |
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Azimuth Angle |
Measurement Range |
0°~360° |
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Measurement Accuracy |
±1.0° |
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Tool Face Angle |
Measurement Range |
0°~360° |
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Measurement Accuracy |
±1.0° |
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Overall Dimensions |
Φ40mm×1110mm |
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Weight |
5.5Kg |
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Why Accuracy is Critical in Mining
An inaccurate borehole survey can lead to missing the target ore body, resulting in significant financial loss and wasted resources.
- Financial Risk: Misplaced drill holes can cause incorrect calculation of mineral reserves. An error of just 0.3 degrees in a 1,000-meter hole can mean missing the target by 6-10 meters.
- Environmental & Safety: Accurate drilling helps minimize unnecessary excavation and ensures well structures are stable.
Main Applications in Mining Operations
Gyroscopic tools are primarily used for two key tasks:
- Exploration Drilling: To obtain an accurate 3D map of subsurface geology and verify the location of mineral deposits.
- Production & Development Drilling: For precision drilling of shafts, tunnels, or wells for resource extraction, dewatering, or ventilation
Choosing the Right Gyro System
Your choice depends on the project's requirements. This table compares key factors:
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Consideration |
True North-Seeking Gyro |
MEMS-Based System |
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Accuracy & Precision |
Very High. Unaffected by magnetic interference; accuracy doesn't drift with depth or time. |
Lower to Moderate. May be sufficient for shallower or less critical holes. Accuracy can drift. |
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Operational Environment |
Ideal inside steel casing, drill pipe, or in areas with magnetic minerals. |
Can be affected by magnetic interference from equipment or geology. |
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Typical Use Case |
Critical exploration, deep holes, projects where precise reserve calculation is essential. |
Cost-sensitive projects, shallower holes, preliminary surveys. |
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Cost Consideration |
Higher initial tool cost, but protects against the high cost of missing the target. |
Lower initial cost, but carries higher risk of costly errors. |
About VIGOR
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