201 Orientation Tool

The 201 Orientation Tool is designed to measure the orientation angles:

• AZIMUTH (Heading)
• INCLINATION (Pitch)
• RELATIVE BEARING (Roll)

in borehole logging and directional drilling applications.

201 determines the inclination and Relative bearing angles by using a 3-axis accelerometer to measure the direction of earth's gravity. The azimuth angle is determined by measuring the earth's magnetic field using a 3-axis magnetometer. The 201 can operate in either a command (polled) mode when used in string tools, or an autosend (continuos) mode when data is automatically sent repeatedly after power-up.

TECHNICAL DESCRIPTION:

General:

• Tool Diameter: 43mm
• Tool length: 100 cm
• Measuring point: 20 cm from the tool bottom
• Weight: 8kg.
• Max. pressure: 20MPa
• Temperature range: 85 °C
• Power: 90V DC/60mA
• Output signal: digital
• Cable: Designed for single conductor cable
• Borehole type : Open/cased hole, In metal case hole logging, azimuth is not available.)

Detector type:

• 3-axis accelerometer for inclination and Relative bearing
• 3-axis magnetometer for azimuth

Angular range:

• Inclination 0-90°
• Toolface 0-360°
• Azimuth 0-360°

Resolution:

• Inclination 0.1°
• Toolface 0.1°
• Azimuth 0.1°

Output:

• Orientation angles
• Raw sensor readings (AX, AY, MX, MY, MZ)

Communication interface:

• CAN (requires an additional section)
• Line driver (for autonomous operation)

Optional:

• Extended working temperature: up to 125°C
• Custom output signal
• Custom tool head and diameter (min. 30mm)