CATALOG
July 2026 — Insights: Core Analysis, PVT and Lab Equipment | Coretest
5 Safety Essentials for HPHT Laboratory Testing
RCAL vs SCAL: What's the Difference and When Do You Need Each?
Porosity Measurement: Methods, Formulas, and Ranges
How the pore fraction of a core is measured, the equations behind each method, and the porosity ranges you should expect by rock type.
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Gas Permeability Measurement: Methods, Formulas, and Ranges
Five laboratory methods measure gas permeability across ten orders of magnitude, from steady-state Darcy flow to pulse decay on nanodarcy shale. None covers the whole range, and the physics that limits each is worth knowing before you choose an instrument.
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