Continuous high speed non- magnetic survey

DeviGyro is a driller operated survey instrument supporting high speed continuous surveying, overshot mode and even core orientation.

It is a miniature non-magnetic, memory, reference survey tool based on MEMS gyroscope technology. The gyroscope technology detects and quantifies any deviation the instrument is subjected to as it traverses down the borehole.

A DeviGyro survey may be performed continuously on the wireline or as a standard survey with quick stops according to a set depth interval. The running gear can be connected directly to the wire or to a standard overshot, and may be lowered or pumped into the borehole at high speed while surveying. Survey data can be recorded both during the in and out for comparison and additional quality control.


Enjoy the best design and functions combined together.

Continuous High Speed Non-Magnetic Survey

DeviGyro is a driller operated survey instrument supporting high speed continuous surveying, overshot mode and even core orientation.

It is a miniature non-magnetic, memory, reference survey tool based on MEMS gyroscope technology. The gyroscope technology detects and quantifies any deviation the instrument is subjected to as it traverses down the borehole.

No matter the survey mode the data always passes through an automatic and instant go/no-go quality check ensuring the results are always of the highest quality.

Depth Measurement

DeviCounter

DeviCounter digital wire counter is used to control depth during wireline DeviGyro surveys.

DeviCounter connects wirelessly to the operating handheld device and stays connected through the survey run, continuously updating the display with high accuracy depth data.

Small and simple size

DeviGyro’s small size is the perfect choice for all survey applications where efficiency and accuracy are required, independent of hole direction, inclination and location

Easy-fitted tool

DeviGyro can be fitted in a variety of running gear assemblies suitable for core drilling, RC, geotechnical drilling and open holes

Long duration? We’re on to it

With its low drift sensors and long life battery package, DeviGyro may be used over long durations, in inclined, horizontal or up-holes without affecting accuracy.

Why DeviGyro is a revolutionary, perfect choice

Find out how its revolutionary small size and proprietary algorithms, DeviGyro is the perfect choice for all surveys 

High speed and quality

Surveys can be completed in continuous mode at speed up to 100m/ min(successfully tested up to 185 m/ min) or in standard mode with short stops at set intervals. 

Intuitive and user friendly Software

DeviGyro is operated by an intuitive and easy to navigate Android application that connects to both DeviGyro and DeviCounter, combining the data automatically and accurately

Very little maintenance

With its miniature size and robust sensors, DeviGyro requires very little maintenance and repair

Running Gear Options for DeviGyro

Adjusting to your operations, we provide a wide range of running gear for your best need

DeviGyro RG40 Standard

Ultra-versatile survey solution for most types of in-rod applications

Optimal for a wide range of drilling applications.

DeviGyro RG40 Standard Survey Mode running gear makes the DeviGyro an excellent choice for most types of in-rod surveying. The adjustable centralizers cover a wide range of diameters and rod profiles while still supporting the high speed continuous survey operation the DeviGyro has become known for.

The Standard 40mm RG40 running gear includes our custom designed and built asymmetrical centralizers for surveying within a range of BQ to PQ sizes, with no loss of accuracy.

Your versatile surveying option, covering Coring, RC, Geotechnical, and more

DeviGyro Overshot Xpress (“THE OX”)

Compact Overshot surveying solution 

When assembled in the overshot gear DeviGyro becomes a powerful tool for core drilling surveying, allowing surveys to be performed while retrieving the inner tube. Surveying becomes an integrated part of the drilling process without affecting drilling production.

With its short length, it’s always safe and easy to handle, and well suited for both surface and underground applications.

Due to the miniature size of the DeviGyro, Overshot system is similar length of a standard overshot.

Overshot running gear for NQ, HQ and PQ coring.


Lightweight, quick and strong as on ox, the DeviGyro Overshot is the drillers’ choice for maximizing productivity

DeviGyro RG30 Slimline

Multipurpose survey solution for slim drill hole applications

The RG30 is the preferred option for short-slim holes, e.g. production holes or blast and injection holes. The titanium barrel, light-weight and small size makes it sturdy and easy to handle

NORTH SEEKING PACKAGE

Combined with the DeviAligner (surface & underground) or DeviSight (surface), the DeviGyro becomes a very powerful north seeking package that secures superior accuracy even in high latitude locations

DeviAligner

DeviAligner is a portable battery operated north seeking gyro alignment system designed to make and record highly accurate measurements of True North, inclination and roll angles both at surface and underground drill sites

DeviGyro

DeviGyro is a driller operated survey instrument supporting high speed continuous surveying, overshot mode and even core orientation

DeviSight

DeviSight is a portable battery operated system designed to make and record highly accurate measurements of True North azimuth and coordinates at drill sites

DeviGyro

Continuous High Speed Non-Magnetic Survey

applications
  • Underground Diamond Drilling; Wireline, Pump down or conventional
  • Surface Diamond Drilling
  • Overshot Mode
  • Pilot holes
  • Reverse Circulation
  • Blast & injection holes
  • Production holes
  • Geotehnical invetigations
  • Core orientation
benefits
  • Continuous survey operation
  • In-rod surveying – not affected by magnetics
  • No angle restrictions
  • Automatic and instant quality assurance
  • Some high accuracy in any inclination, direction and location
  • Extremely low weight & size and easy to handle
  • Automatic multi-survey processing
  • Highly robust and reliable
  • Simple and intuitive software
specifications
  • Running gear: Overshot Xpress, RG40 or RG30
  • Weight: 0.2kg/ 0.5lbs
  • Length: 140mm/ 5.5″
  • Diameter: 25mm/ 1″
  • Pressure: Running gear dependent
  • Temperature range: -20° to +/-60°C
  • Typical positioning accuracy: 0.2%
  • Inclination accuracy: +/- 0.1° (calibrated for temperature range -10° to 60°C)
  • Tool face accuracy: +/- 0.2° (calibrated for temperature range -10° to 60°C)
  • Azimuth range: 0° – 360°
  • Inclination range: -90° – +90°
  • Temperature: Recorded
  • Survey speed, up to: 100m/min
  • Effected by magnetics: No
  • Memory: 6h 40min
  • Data communication: Wireless
  • Battery type: 1 x CR 123a
  • Battery capacity, continuous use: 24 hours

Frequently asked questions

What is the maximum operating speed for the DeviGyro?

Although DeviGyro has been successfully tested at speed of 180m/ min, the maximum recommended operating speed is 100m/min

How long does it take to survey a 100m drill hole with the DeviGyro?

Assuming a moderate survey speed of approx. 60m/ min, a 100m survey takes about 4 minutes. In addition, if you are conducting core drilling and running the OX assembly surveying becomes part of the drilling cycle and therefore survey time does not interrupt drilling productivity.

Can the DeviGyro be used without the DeviCounter?

Yes, it can. In that case you have to take stationary readings at specified depths. Whenever possible, however, continuous surveys are recommended. They give better accuracy because they have the benefit of precise depth information from the DeviCounter.

Is the DeviGyro RG40 Standard North Seeking?

No, DeviGyro is not north seeking. It is a high precision, continuous rate gyro using north seeking principles and proprietary algorithms to determine the drill hole path from a known direction. Most continuous north seeking gyros operate in the same way. They determine a start direction and then measure the “rate” of change from the initial reference.