Borehole Geophysics
Wireline logging measures physical properties along a borehole wall, trading the spatial coverage of surface methods for depth-registered detail. Combining logs (gamma, resistivity, sonic, neutron, density, caliper) turns a single hole into a calibrated column of lithology, porosity, and fluid content.
Learning Objectives
Undergraduate Core: By the end of this module, you will be able to:
- Match common environmental logging tools to their measured signal and investigation volume.
- Interpret gamma, induction, neutron, televiewer, nuclear magnetic resonance, fluorescence, and flowmeter responses jointly.
- Recognize borehole-fluid, casing, diameter, invasion, and tool-position effects.
- Separate a measured log response from a calibrated formation-property estimate.
Graduate Extension
Evaluate vertical resolution, environmental corrections, response-function mixing, petrophysical calibration, and joint interpretation with surface geophysics.
Practice this module Teach with active-learning slides
Interactive Lecture
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🖥️ Borehole Geophysics: Principle & Data Dashboard
The major logging tools and how their curves respond to the formation.
Demo
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⚡ Wireline Log Response Explorer
Stack lithology layers in a synthetic borehole and see how each standard log responds across the column.