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"I would like to thank SPT team for all the hard work that you have put into these tools. " - John Stringer - IDS -


Description Features and benefits Specifications Dimensions Downloads

The GyroLogic™ instrument is a highly accurate, extremely reliable downhole directional survey tool. Comprising of the latest technology, the SPT system uses Fiber-Optic based Gyro to find direction.

The SPT Fiber-Optic Gyro System with 36mm OD, operates in Wireline and Memory mode. This continuous survey instrument can accurately survey all well profiles at all inclination angles. With drop capability thanks to its rugged design can be operated even in open hole applications providing azimuth data in magnetically disturbed environments. This device is controlled using a rugged Tablet PC supplied with the system and provides directional data (azimuth and dip) at any interval from inside all types of drill rods.

This easy to use system can be run in a variety of applications from shallow borehole to deep borehole surveying, single shot/multi shot and continuous mode. Operating software to run all SPT instruments is very reliable and user friendly.

  • Unaffected by magnetic interference
  • No field calibration or roll test required before each survey
  • Measures in all directions including horizontal
  • Package includes both wireline and memory mode
  • High-Speed Continuous Survey
  • Drop Capability
  • Short length, light weight tool
  • User friendly software
  • Extremely accurate and reliable
  • Rugged construction
  • Shock resistant
  • Fully remote cableless operation in Memory Mode
  • Export all your survey data to Excel and other formats
  • Bluetooth™ Connectivity
  • Continuous Mode
  • Position accuracy NS, EW and TVD < 0.2%* of well depth
  • Inclination accuracy of ± 0.05°
  • Roll accuracy of ± 0.1°
  • Temperature rating: -20°C to 70°C (-4ºF to 158ºF)
  • Pressure rating: 70Mpa (10.000psi)
  • Fiber-Optic Gyroscope
  • Quartz technology accelerometers

* Subject to the well profile and depth accuracy

  • OD 36 mm (1.42”)
  • Gyro Probe 1100 mm (43.3")
  • Weight 3 kg (6 lbs)