North Seeking Gyroscope Surveys

What Is a North Seeking Gyroscope?

A North Seeking Gyroscope (NSG) is a downhole survey instrument that tells you the exact path your wellbore takes underground — its direction (azimuth), angle (inclination), and orientation (tool-face) at every depth. Unlike magnetic survey tools, it finds true north by sensing Earth's rotation, not its magnetic field. That means it works perfectly inside steel casing, near other wells, and in magnetic rock formations where compass-based tools fail.

If you need to know exactly where your well goes — and you need that data to be right — this is the tool.

Why Magnetic Tools Are Not Always Enough

Traditional magnetic survey instruments (including MWD and single-shot magnetic tools) rely on Earth's magnetic field for azimuth reference. They work well in open-hole, nonmagnetic environments, but become unreliable in many common conditions:

• Inside steel casing — the casing's magnetic signature overwhelms Earth's field.
• Near other wellbores — adjacent casing strings shift azimuth readings by tens of degrees.
• In magnetic formations — iron-rich minerals and volcanic rocks create false readings.
• Near surface infrastructure — pipelines, power lines, and metal structures disturb the signal.

Using inaccurate directional data for well planning can lead to regulatory violations or even wellbore collisions.

Our Technology

GeoCam deploys the latest generation of solid-state North Seeking Gyroscope technology. Key specifications:

• Technology: Solid-state MEMS nanotechnology — no spinning mass, no mechanical components.
• Accuracy: ±0.1 degrees for azimuth, inclination, and tool-face.
• Speed: Achieves north-seeking lock in under one minute per station.
• Battery: Over 30 hours of continuous operation.
• Modes: Continuous survey, station-based survey, and real-time surface readout.
• Well types: Vertical, deviated, and horizontal wells.

Applications

• Oil & gas drilling — wellbore trajectory surveys for regulatory compliance, well planning, and collision avoidance on multi-well pads.
• Directional drilling — real-time gyro steering for horizontal and deviated wells.
• Well abandonment — accurate trajectory documentation for plug and abandonment programs.
• Mining — precise borehole positioning for mineral exploration and blast hole verification.
• Geotechnical — deviation surveys for foundation boreholes and slope stability investigations.
• Water wells — verification of well verticality and detection of unwanted deviation.

Available 24/7

Our gyroscope survey teams are available around the clock for both planned surveys and emergency mobilizations. The solid-state technology requires no warm-up time and delivers consistent accuracy in extreme conditions. Call 1-877-495-9121 to schedule your gyroscope survey.