Abstract
ABSTRACTDeposit bitumen is a highly viscous, asphaltene-rich hydrocarbon that can fill in the pores as the cement reduce the porosity in the deposit. The authors comparatively analyzed the experimental data of the nuclear magnetic resonance before and after the dissolving of bitumen-rich core samples. The short transverse relaxation times (T2) and consequently lower NMR porosity are characteristics of bitumen-rich zones. An NMR method was used to reconcile core data as well as to calculate the saturation of bitumen in the deposit.
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