How do geoscientists see rock kilometres down, or know which layer holds water, oil or gas? Learn it the way they work: with sound waves, well logs and real data.
Eight modules stacked like the rocks they describe. Start at the top for the foundations, or drill straight down to the professional skills.
Crust, mantle and core, and how moving plates build mountains and basins.
Igneous, sedimentary and metamorphic rocks, and what minerals reveal about their history.
P- and S-waves, velocity, reflection, and why sound can see underground.
Wavelets, resolution and tuning, and picking horizons on a seismic section.
Gamma ray, resistivity, density and neutron logs, and how to read them together.
Shale volume, porosity and water saturation from logs.
Loading LAS and SEG-Y files, and plotting and quality-checking real datasets.
Classifying rock types from logs, and how to tell when a model is fooling you.
Two simulations built on the same physics geoscientists use every day.
A sand layer thins from left to right inside shale. Each wiggly line is a recording of the echo above one point.
Shale is naturally more radioactive than clean sand, so a gamma-ray log reads high in shale and low in sand. Geologists pick a cutoff value: below it is sand, above it is shale.
Short, practical modules for geoscientists, petrophysicists and engineers who want to work faster with their own data. Built and taught by a geophysicist.
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