Mems Orientation Module To Replace Fluxgate

MEMS Gyro Directional Module(Can replace fluxgate directional module)

ER-Gyro-19
1.Adopt the latest three-axis MEMS gyro, three-axis MEMS accelerometer strapdown inertial measurement technology, replace the fluxgate sensor in situ;
2.The azimuth and tool face angle can be output normally at small well inclination, with the accuracy kept within 3°;
3.Subverting the size of traditional gyro tools, extremely small, width 19mm, length 136.8mm, which can be easily embedded in narrow front-end spaces such as probes.

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Introduction

MEMS Gyro Directional Module(Can replace fluxgate directional module)

Introduction
ER-Gyro-19 uses an electrical interface and mechanical structure compatible with the fluxgate orientation module. It can be directly replaced in situ without modifying the hardware architecture of the probe or logging equipment, greatly reducing the equipment modification cost and installation complexity.

Traditional magnetic sensitive element inclinometers cannot guarantee the azimuth measurement accuracy in casing, tubing, drill pipe and well sections affected by magnetic interference. For such abnormal magnetic field environments, gyro orientation technology based on the earth's rotation angular velocity sensing is required.

ER-Gyro-19 is equipped with a high-precision MEMS gyroscope with self-seeking function. By integrating the real-time data of the three-axis MEMS gyroscope and the three-axis accelerometer, it can perform high-precision tracking and holding measurements of azimuth, well inclination and tool face angle in real time under large random vibration conditions, which is especially suitable for measurement while drilling scenarios.

The azimuth and tool face angle can be output normally at small well inclination, with the accuracy kept within 3°, which solves the technical defect that most gyro logging tools cannot output effective azimuth at small well inclination.

The device supports measurement while drilling, point measurement and continuous measurement, can quickly collect drilling data, control drilling trajectory, greatly shorten measurement time, and significantly improve operation efficiency. It is an ideal equipment in the fields of oil and gas logging.

Features

Adopt the latest three-axis MEMS gyro, three-axis MEMS accelerometer strapdown inertial measurement technology, replace the fluxgate sensor in situ;
The azimuth and tool face angle can be output normally at small well inclination, with the accuracy kept within 3°;
Subverting the size of traditional gyro tools, extremely small, width 19mm, length 136.8mm, which can be easily embedded in narrow front-end spaces such as probes;
All-solid-state design, excellent impact and vibration resistance
Dynamically maintain the accuracy of azimuth, well inclination and tool face angle under vibration environment (random);
30s fast alignment, azimuth accuracy 1°, 90s precise alignment, azimuth accuracy 0.5°;
The well inclination measurement angle is up to 0.1°; the gyro tool face angle accuracy can reach 1°/secL (L represents latitude);
It can measure while drilling and can also measure continuously;
Not affected by magnetic field, with self-seeking north function;
5~125°C full temperature calibration compensation, adapt to extreme environments;

Applications
1) North-seeking logging tools/gyroscopes;
2) Pointing and guidance of advanced mining/drilling equipment;
3) Oil inclination north-seeking;
4) Pipeline measurement.

Er Gyro 19 Gyro Tool Orientation Module Coordinate Polarity Definition (top View)

Figure 1. ER-Gyro-19 gyro tool orientation module coordinate polarity definition (top view)

Performance parameters

Model	ER-Gyro-19		ER-Gyro-19H
Performance Indicators	Parameter
Azimuth accuracy(1σ,°secψ)	1	0.5	1	0.5
Gyro tool face angle accuracy(°,1σ)	1/secL(L stands for latitude)		1/secL(L stands for latitude)
Well inclination alignment accuracy(°,1σ)	0.1		0.1
Azimuth hold accuracy	20min		20min
Attitude maintenance accuracy	20min		20min
Azimuth measurement range(°)	0~360		0~360
Gravity tool face angle measurement range(°)	-180~180		-180~180
Gyro tool face angle measurement range(°)	0~360°		0~360°
Well inclination measurement range(°)	0~180		0~180
Update rate (Hz)	100		100
Power supply and working environment
Operating temperature(℃)	5~+85		5~125
Storage temperature (℃)	0~+90		0~130
Wide voltage (V)	6~12V
Power (W)	2		3
Communication interface	RS-422
Appearance characteristics
Size (mm×mm)	136.8mm x 20.3mm x 19mm
Weight (g)	≤150g