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VM-NWG Vigor North-seeking Wired Gyro For Mining

The operational efficiency of a gyroscope is fundamentally linked to its spinning mass. As this mass spins, it produces angular momentum that counteracts any external torque attempting to modify its orientation. By analyzing these resistance forces, the gyro can accurately gauge both the rate and direction of rotation. Gyroscopes have applications in many fields due to their ability to determine orientation without being affected by external references.
Vigor North-seeking Wired Gyro for Mining offer higher accuracy because they utilize gyroscopic technology to measure true north, thereby avoiding errors caused by magnetic interference. MWD tools often rely on magnetic sensors, which can be inaccurate near cased holes or other wellbores where magnetic fields are distorted. MWD tools utilize magnetometers for azimuth and require correction for magnetic declination, whereas gyro surveying tools do not.

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Description

VM-NWG Vigor North-seeking Wired Gyro For Mining 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.

Vigor North-seeking Wired Gyro for MiningVM-NWG

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

Gyro North - seeking Wired Measurement While Drilling Probe
Part Name	Quantity
Instrument Computer	1unit
Keyboard	1unit
Gyro North - seeking Wired Measurement While Drilling Probe	1unit
Data Converter	1unit
Computer - Probe Measurement Cable	1piece
Computer - Data Converter Communication Cable	1piece
Data Converter - Probe Measurement Cable	1unit

Main Technical Indicators and Parameter
Main Technical Parameters of the Probe		Indicators
Operating Voltage/Power		DC15-55V/3W
Operating Temperature		-40℃~80℃
North-seeking Time		≤3.5min
Inclination Angle	Measurement Range	-90°~+90°
	Measurement Accuracy	±0.1°
Azimuth Angle	Measurement Range	0°~360°
	Measurement Accuracy	±1.0°
Tool Face Angle	Measurement Range	0°~360°
	Measurement Accuracy	±1.0°
Overall Dimensions		Φ40mm×1110mm
Weight		5.5Kg

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:

	True North-Seeking Gyro	MEMS-Based System
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.
Operational Environment	Ideal inside steel casing, drill pipe, or in areas with magnetic minerals.	Can be affected by magnetic interference from equipment or geology.
Typical Use Case	Critical exploration, deep holes, projects where precise reserve calculation is essential.	Cost-sensitive projects, shallower holes, preliminary surveys.
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.

Overall, gyro survey technology is a critical investment for ensuring the success and financial viability of mining exploration projects. If you want to obtain the world-class Gyro for Mining, please don't hesitate to contact Vigor's technical engineering team.

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