Subsurface 3D Trajectory Mappers Digital Inclination and Azimuth Sensors Automated Borehole Deviation Monitors
The Strategic Asset Integrity Sentinel
Subsurface wells and boreholes represent long-term capital assets whose value and safety must be protected over decades. The JTG-1 and GDY-2GW systems are deployed as Strategic Asset Integrity Sentinels, providing continuous, accurate monitoring of wellbore geometry as a key indicator of asset health. Their role shifts from surveying for construction to sentinelship for stewardship, establishing a precise baseline survey upon completion and then enabling periodic re-surveys to detect any changes over time.
The high-accuracy, magnetically-immune gyro sensor is perfect for this role, as it can return to the exact same well, even through steel casing, and provide a comparable measurement years later, free from the variables that affect other tools. This allows for the detection of minute, gradual wellbore movement or deformation that could indicate subsidence, caprock integrity issues, or casing strain.
The sentinel system operates through a regimen of planned observational campaigns. It utilizes its proven, repeatable point measurement method to ensure data consistency across surveys separated by years. The automated functions minimize operator-dependent variables, guaranteeing that observed changes are geomechanical, not instrumental. Data from each surveillance run is archived with precise metadata and compared against the baseline and previous runs using specialized software, generating trend analyses and deviation alerts.
This transforms raw survey data into a time-lapse narrative of the wellbore's structural life, providing early warning of potential integrity issues long before they become visible at the surface or cause operational problems.
The strategic value of this sentinel capability is immense for risk management and regulatory compliance. For subsurface storage projects (CO2, hydrogen, natural gas), it provides the regulatory body-required proof of containment by demonstrating no significant change in the injector/monitor well geometry. For aging offshore platforms or wells in subsiding regions, it offers a proactive tool for managing asset life extension and decommissioning planning.
It directly protects environmental and safety margins by identifying wells at risk of subsurface failure. By implementing a permanent, accurate monitoring regimen, asset managers shift from reactive maintenance to predictive integrity management, safeguarding not only the physical asset but also the corporate reputation, environmental standing, and long-term financial viability tied to it.
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