Petrophysical evaluation of Lower Bahariya Reservoir using integrated well-logs and core data analysis in Yasser field, North Western Desert, Egypt. | ||||
| Frontiers in Scientific Research and Technology | ||||
| Volume 9, Issue 1, September 2024 PDF (1.46 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/fsrt.2024.296095.1130 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Emad-eldin Eysa Abd-elrazek  1; Shehta Abu-Fandod Eweda2; Fatma Elsayed Ramadan3; Elham Abdelhay Elsobky4
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| 1Associate Prof. Dr. of petrophysics and well logging Zagazig University, Faculty of Science, Geology Department, 44519, Zagazig, Egypt emad_eysa@zu.ed.eg | ||||
| 2Ass. Prof. Dr. of stratigraphy Zagazig University, Faculty of Science, Geology Department, 44519, Zagazig, Egypt | ||||
| 3Prof. Dr. of sedimentary rocks Zagazig University, Faculty of Science, Geology Department, 44519, Zagazig, Egypt | ||||
| 4Geology Department, Faculty of science, Zagazig University, Egypt | ||||
| Abstract | ||||
| The northern part of the Western Desert represents one of Egypt's most prolific and prospective oil and gas provinces. Yasser oil field is considered as one of the main oil fields in the north Western Desert region due to its high production from many reservoirs. The aim of this study is directed to evaluate the reservoir characteristics of Lower Bahariya using logging data for five wells and core data for three wells. Core data analysis in this work involves the construction of histograms, relations, and statistical analysis for the porosity and the permeability of Lower Bahariya reservoir. Petrophysical data are illustrated in iso-parametric maps for total gross thickness, net pay thickness, effective porosity (e %), shale volume (Vsh %), water saturation (Sw %), hydrocarbon saturation (Sh %), bulk pore volume (BPV) and oil in place indicator (OIPI). The obtained high porosity and permeability values indicate that the Lower Bahariya is described as good to very good reservoir. The average of porosity values (helium and fluid) in the three wells range from 16.75% to 22.63%. The porosity values give homogeneity whereas the permeability values were heterogeneous. The positive trends with strong correlation coefficients in the relation between porosity types (fluid and helium) and porosity-permeability indicate homogeneity of pore spaces types and high percentages of effective porosity. The distribution maps reflect that the north and northeastern directions of the studied area is the most favorable part for accumulation and production. These directions are recommended for future exploration and drilling new wells. | ||||
| Keywords | ||||
| Northwestern Desert; Lower-Bahariya Reservoir; Statistical analysis; Isoparametric maps; Petrophysical parameters. | ||||
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