Gyroscopic Surveying


  • Gyro Single-shot Service
  • Gyro Multi-shot Service
  • SRG Whipstock Orientations
  • SRG Multi-shot Service
  • SRG Motor Orientations
  • Magnetic Single Shot Rental
  • Magnetic Multi-shot Service

Stryker’s SRG (Surface recording gyroscope) provides gyro-surveys which are the fastest, most accurate means of locating the exact location of your bore hole from surface to TD.

  • Faster -– Our expedient survey times correlates to less rig time required per survey.
  • More Accurate -– You receive a computer digital reading which is translated to a printed computerized report.
  • Cost Effective -– Savings are realized by eliminating possible costly drilling mistakes.



    • Ranges: 0-6° to 0-180°
    • Resolution: .01° to .04°
    • Accuracy: .03° to .05°
    • Gyroscope Resolution: .02°
    • Accuracy: .15° Over Temperature Range
    • High Side Alignment: -.20° Typical
    • Offset Center: Less than .06° (approximately .02° after software correction)
    • Temperature Range: -55°C to +125°C
    • Temperature Variation: Compensated Over Temperature Range (typically less than .03°)

*Power Source: Powered by electric wireline, monoconductor wireline 5/16” preferable.

  • Magnetic Single-shot/Multi-shot Survey System
  • SlingShot – Wireless Trajectory Data

Stryker has joined with Digital Data Drilling Systems (Digidrill) to offer the SlingShot survey system. The SlingShot survey tools deliver digital wellbore surveying capability at a low cost with the latest technology.

  • Built-in menu-driven user interface with simple two button operation
  • Fully digital low-power circuitry for long battery life
  • 3-axis accelerometers and magnetometers
  • Temperature sensor
  • 1-in. O.D. x 30-in. length
  • Operating temperature 125 deg. C (257 deg. F)
  • Built-in diagnostics
  • Accuracy: Azimuth/MTF: +/- 0.5 degrees
  • Accuracy: Inclination/GTF: +/- 0.1 degrees

The tool is available in two configurations, single-shot with timer or monel sensor and a multi-shot. Single-shot features:

  • Optional non-magnetic (monel) collar sensor
  • Timer-based trigger
  • On-device display for recorded survey values (time, inc., azm., temperature)
  • No need for PC software for Inclination, Azimuth, Temp, GTF or MTF

Multi-shot features:

  • Initial time trigger with secondary interval timer
  • Memory support for approx. 1500 surveys
  • Complete telemetry data recorded (including g/h-totals)
  • Plug-and-play USB interface to PC for data downloads
  • Software includes: editing, printing, auto depth and reverse depth features
  • Survey settings can be done on the tool or through the PC software
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