Rock physics diagnostic of Eocene Sokor-1 reservoir in Termit subbasin, Niger
نویسندگان
چکیده
Abstract Eocene Sokor-1 reservoir is intrinsically heterogeneous and characterized by low-contrast low-resistivity log responses in parts of the Termit subbasin. Discriminating lithology fluid properties using petrophysics alone complicated undermines characterization. Petrophysics rock physics were integrated through diagnostics (RPDs) modeling for detailed description microstructure quality Petrophysical evaluation shows that sand_5 interval has good petrophysical across wells prolific hydrocarbons. RPD analysis revealed this sand could be best described constant cement model wells_2, _3, _5 _9 friable well_4. The matrix structure varied mostly from clean well-sorted unconsolidated sands as well consolidated cemented sandstones to deteriorating poorly sorted shaly shales/mudstones. template built based on representative well_2 diagnosed hydrocarbon bearing with low V p / s medium-to-high impedance signatures. Brine shales/mudstones moderate high medium impedance, respectively. These results reveal brine cannot distinctively discriminated property, since they exhibit similar characteristics. However, sands, completely characteristic property. demonstrate robust application diagnostic quantitative characterization may quite useful undrilled locations subbasin fields geologic settings.
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ژورنال
عنوان ژورنال: Journal of Petroleum Exploration and Production Technology
سال: 2021
ISSN: ['2190-0566', '2190-0558']
DOI: https://doi.org/10.1007/s13202-021-01259-2