Pulsed neutron logging responses of gas-bearing tight sandstone reservoir-numerical analysis and quantitative evaluation

AbstractUsing the Monte Carlo method, we conducted a comprehensive numerical simulation to investigate the response of the pulsed neutron logging in gas-bearing tight sandstone reservoir. We developed the saturation evaluation method based on the relative variation of the epithermal neutron count rates (denoted byDe). Moreover, influential factors including the reservoir property, the fluid compositions, the gas saturation, as well as the solid components are investigated. The relationship between the gas saturation andDe was established. The study provided a theoretical support for the quantitative characterization of gas-bearing tight sandstone reservoirs and is potential generalized to similar unconventional resources.
Source: Journal of Radioanalytical and Nuclear Chemistry - Category: Nuclear Medicine Source Type: research