... magnetic resonance technique and Fast Field Cycling (FFC) NMR relaxometry to more fluids and rock samples as the first stage for the above objectives. NMR dispersion (NMRD) profile by FFC NMR is a low field magnetic resonance technique, which measures the longitudinal spin relaxation over a wide range...

... hydrocarbon Upstream Oil & Gas porosity diffusion diffusivity relaxation effective porosity conventional log well logging sensitivity basic nmr analysis interpretation heavy oil activation nmr free fluid index reservoir NMR porosity society of petroleum engineers nmr fluid NMR analysis...

... compositions and temperatures the oil, water, and gas saturations can be measured independently. The decrease in oil viscosity from 220-cP to 2 cP due the temperature increase from 45°C to 247°C is within the NMR relaxation measurable range ( Fig. 6 ). NMR logs in this reservoir when cold provide reliable oil...

... Jayanth Banavar and Lawrence Schwartz [ Schwartz (1987) ] were the first to measure NMR relaxation responses at partial saturations but suggested that industry should perform NMR measurements in mixtures of oil and water to match the reality of hydrocarbon reservoirs, which frequently...

.... NMR T 2 relaxation was performed as a reference on fully brine saturated samples. Crude oil was injected into the plugs until they attained S wi . An NMR T 2 was measured on them before aging. Then one limestone and one dolomite were immersed in crude oil and placed in an oven at reservoir...