Boretrak 2

Borehole-deviation Surveying System

Measure Boreholes at any Inclination

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The Boretrak2 borehole deviation measurement system is a simple-to-use, gyro-based system for measuring the deviation of boreholes drilled in underground mines or on the surface in quarries or open-pit mines.

As a successor to the widely used Cabled and Rodded Boretrak systems, the fundamental capabilities of the Boretrak2 are backed by over 35 years of in-the-field history. The features of both units have been combined into a single all-purpose unit capable of measuring boreholes in any inclination: down, up or horizontal.

Together with Carlson Boretrak software, the Boretrak2 provides a simple-to-use system for checking the accuracy of drilled holes and their deviation from design.

Gyro-based Solution

The Boretrak2 utilizes a miniature inertial measurement unit (IMU) which contains a triaxial accelerometer, magnetometer, and gyro. Prior to deployment, the probe is calibrated against a known orientation on a supplied jig. This establishes a starting reference azimuth for the gyro. The gyro provides the Boretrak2 with an accurate, live heading which is tracked as the probe is deployed along the borehole.

Why borehole deviation happens and why it matters

Borehole deviation isn’t a rare occurrence. Whether it’s the experience of the driller, the quality of the equipment, the angle drilled or the local geology, boreholes frequently deviate from their intended path.

In the past, there was no easy way to measure deviation. Mechanical methods lacked accuracy, and produced too little data to be mapped against the drilling plan to enable a comparison.

As a result, even today some mine and quarry managers will proceed to blast on the basis of the drilling plan, rather than the drilling results. And those responsible for engineering and geotechnical works will proceed on the assumption that holes are straight, encountering costly delays later in the project.

The benefits of Boretrak 2

Carlson’s Boretrak 2 is designed to help you complete a range of drilling-related projects more quickly and efficiently, by giving you the data you need to make on-site decisions quickly and without the need to employ surveyors or other costly personnel.

Accurate data on site

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An Android mobile device or Windows-based tablet are used to run the Carlson Boretrak software which controls the Boretrak2 operation.

The Carlson Boretrak software can be used to set up the project, import hole coordinates, setup design holes, and import third-party data to form a background to the collected Boretrak2 data.

Results can the be issued to drillers on site if needed. Your on-site drilling operation becomes data led, responsive and better integrated.

Work efficiently

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Optimizes blasting and engineering works by easily creating detailed maps of drilling activity

Reduces the need for large teams with entire drilling sites able to be measured and modelled in hours

Portable, lightweight, and hand-deployable, the system is designed to be used by a single operator

Checks drilled holes and produces in-the-field reports in minutes

On-site drilling operations become data-led with no guesswork and knowledge gaps

Work safely

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Accurately measure borehole deviation and effectively use the data to plan projects safely and in compliance with auditing requirements

Record and visualize 3D data on drilling activity from ground level or underground site

Comply with quarrying legislation

Avoid the potential risks and costs associated with blasting from deviated or un-surveyed boreholes

Work reliably

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Designed for the rugged mining and quarrying environments – harsh weather, muddy holes, extreme temperatures, and ruggedized treatment

Have confidence that the system will last for years, giving accurate and reliable data in the toughest conditions

Capable of operating in areas of magnetic interference and in flooded holes

Carlson Boretrak Software

An Android mobile device or Windows-based tablet are used to run the Carlson Boretrak software which controls the Boretrak2 operation.

The Carlson Boretrak software can be used to set up the project, import hole coordinates, setup design holes, and import third-party data to form a background to the collected Boretrak2 data.

A Bluetooth connection between the probe and mobile device allows setup and calibration prior to the deployment and also synchs the clocks on the probe and the mobile device.

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