Nuclear Magnetic Resonance (NMR)
Provides sample specific T2 cutoffs for wireline log calibration, clay bound water saturations, and fluid filled pore size distribution. Can be used as a non-destructive screening tool to understand as-received fluid filled porosity, saturations and mobility in unconventional reservoirs.
High Frequency NMR
Evaluate fluid properties in unconventional reservoirs, where conventional resistivity-based methods may not be effective. Acquiring NMR T1 and T2 measurements simultaneously can help quantify different NMR porosity regions and a wide range of fluid volumes, including heavy organics and bound waters, due to the 24MHz unit’s short inter-echo spacing. Additionally, including HF-HMR measurements can provide additional quantification and identification of fluid changes during EOR and other simulated production testing to gain insights without interrupting reservoir condition tests .
Use Low-Frequency NMR provides a reservoir-specific T2 cutoff for log-calibration to refine the Free Fluid Index (FFI) and Bulk Volume Irreducible (BVI) ensuring T2 cutoff estimations of producible hydrocarbon saturations are not suppressed.