European Geophysical Services and NMR Services Australia give the readers of GDI an introduction to the use of a borehole magnetic resonance (BMR) log, showing how it can provide standard deliverable and enhanced value as part of a geophysics logging suite.
Image of a clastic lithology pore size (T2) distribution from a single NMR measurement. Two Cut-off times on the x-axis divide the distribution into clay, capillary and free water components. The sum of the amplitudes of each component are equivalent to the porosity in the respective T2 time range. The sum of the 3 components is equivalent to total porosity in fully saturated conditions.
Near-surface geotechnical applications such as tunnelling, bridges or infrastructure projects require detailed ground investigation (GI) in the early stages for decision making. GI often combines many...
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