Directional dependence of subsurface electrical resistivity. Critical for interpreting EM data because vertical and horizontal resistivity influence fluid movement differently. Full anisotropy not only includes horizontal and vertical directions but also in arbitratry direction to account for dipping beds.
A structured commercial mechanism where ETI takes a small equity or royalty position in a CCUS, EOR, or geothermal project in exchange for monitoring and technical support.
The initial EM/CSEM measurements taken before injection or production activity begins, thus establishing a reference for time-lapse comparisons. If the injection has already started, Baseline can be established at any stage thereafter.
Electromagnetic measurements acquired inside a wellbore. Provides high-fidelity resistivity and anisotropy data that calibrate larger 3D EM models.
A geophysical method using an active EM source to image subsurface resistivity variations, enabling detection of fluids like CO₂, hydrocarbons, or geothermal brines.
Capturing CO₂ from industrial sources and storing it underground in a secure geological formation.
Same as CCS, but includes utilization of CO₂, often in EOR operations.
U.S. Environmental Protection Agency well classification for CO₂ geologic storage. Requires robust MMV (Monitoring, Modeling, and Verification).
Baker Hughes’ monitoring and reporting platform for CO₂ storage, integrating EM, seismic, and borehole data into a unified MRV-ready dashboard.
The degree to which injected fluids move through the reservoir as intended. Poor conformance leads to bypassed oil and wasted CO₂.
Demonstration that injected CO₂ remains within the permitted storage reservoir and does not migrate into unauthorized zones.
A process that uses brines to extract lithium for batteries. EM imaging identifies brine structure and conductivity.
A geophysical technique measuring subsurface resistivity to detect fluids and map reservoir behavior.
Electromagnetic Geo Services. A global leader in marine CSEM acquisition. ETI collaborates with EMGS to extend its EM solutions offshore.
The global shift toward low-carbon energy systems, including CCUS, geothermal, hydrogen, and renewable energy technologies.
Techniques that increase oil extraction from mature fields. CO₂-EOR injects CO₂ to improve sweep and recovery.
The process of visualizing subsurface fluid movement—CO₂, oil, water, or brine—through EM and borehole-calibrated inversion.
A naturally occurring underground system containing hot water or steam that can be used for electricity generation or heating.
Mathematical reconstruction of subsurface resistivity from measured EM data. ETI uses 3D anisotropic inversion calibrated to borehole logs.
Combining multiple data types—EM, borehole logs, seismic—into a single subsurface model for improved accuracy.
Subsurface saltwater enriched with lithium. EM imaging helps map brine structure and potential extraction zones.
Offshore EM surveying performed using vessels and seafloor receivers. Allows imaging of deepwater reservoirs or offshore CO₂ storage sites.
Documentation process for regulatory compliance and carbon credit validation, often including third-party verification.
Subsurface pathways where fluids move more easily. Identified through EM and used to optimize geothermal or EOR well placement.
Visualization of injected CO₂ distribution and movement over time using EM imaging and time-lapse comparisons.
Data-driven understanding of fluid behavior, reservoir heterogeneity, and conformance, enabling operators to optimize performance.
Quantifying the amount of CO₂, oil, water, or brine in a reservoir using resistivity changes interpreted from EM data.
Geophysical imaging using acoustic waves. 4D seismic tracks changes over time; integrated with EM to create a full picture of the reservoir.
ETI’s method for tying high-fidelity borehole resistivity logs to broad-area EM data, dramatically improving interpretation accuracy.
Measurement of how effectively injected fluids push hydrocarbons toward production wells.
Repeated EM surveys comparing baseline and subsequent measurements to detect reservoir changes over time.
The revenue opportunity available to ETI across CCUS, EOR, geothermal, and mineral imaging markets.
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