Electromagnetics (EM)
EM methods span from borehole‑scale resistivity tools used in geosteering to airborne and ground‑based systems for exploration. This section introduces core concepts and depth‑of‑investigation (DOI) principles across frequencies and acquisition geometries.
EM DOI Modules:
• Skin‑Depth DOI (FDEM) — general attenuation concepts.
• Frequency‑Domain DOI — explicit sinusoidal attenuation (interactive).
• Time‑Domain DOI (TDEM) — transient decay and late‑time sensitivity (coming soon).
• Skin‑Depth DOI (FDEM) — general attenuation concepts.
• Frequency‑Domain DOI — explicit sinusoidal attenuation (interactive).
• Time‑Domain DOI (TDEM) — transient decay and late‑time sensitivity (coming soon).
DOI – Skin Depth (FDEM)
General concepts of EM penetration, skin depth, and system sensitivity.
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DOI – Frequency Domain (Interactive)
Interactive visualization of sinusoidal field attenuation and parameter sensitivity.
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DOI – Time Domain (TDEM)
Transient decay, late‑time sensitivity, and depth of investigation in time‑domain EM.
Coming Soon →