Petrophysical and acoustic assessment of carbonate rocks, Zahle area, central Lebanon

Salah, Mohamеd K.; Alqudah, Mohammad; David, Christian

doi:10.1007/s10064-020-01900-0

Cited by 7 publications

(5 citation statements)

References 78 publications

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“…The measured permeability, porosity, and formation resistivity factor of 316 carbonate rock samples were collected from the reports of Ragland, Verwer et al, Regnet et al, Norbisrath et al, Salah et al, and Tian et al All the samples are either limestone or dolomite with a variety of textures and pore types. This dataset covers a wide range of petrophysical data, with permeability ranging from 0.001 to 25,775 mD, porosity ranging from 0.01 to 0.40, and formation resistivity factor ranging from 6.23 to 5961.84, as shown in Table .…”

Section: Data Materialsmentioning

confidence: 99%

“…The NST dataset is further used to verify the accuracy of the F−ϕ correlations in Table 6 and the m−ϕ correlations in Table 7. Since sample ST36A (EQI = 2) in Norbisrath et al 6 and sample M3 (EQI = 2) in Salah et al 36 are not within the range shown in Table 6, they are not considered during verification. As shown in Figure7, the formation resistivity factor and cementation exponent calculated by the EQI method have a good match with the measured values, and the R 2 values are 0.981 and 0.954, respectively.…”

Section: Current Zone Indicatormentioning

confidence: 99%

“…To evaluate the performance of different methods, the collected 316 carbonate rock samples are divided into two groups, one named RVR dataset for model establishment and the other named NST dataset for model validation. The samples in the RVR dataset (269 samples) are from Ragland, 34 Verwer et al, 4 and Regnet et al, 35 and the samples in the NST dataset (47 samples) are from Norbisrath et al, 6 Salah et al, 36 and Tian et al 37 (Table 2).…”

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Comparative Study on Hydraulic and Electrical Transport Properties of Carbonate Rocks Based on Rock Typing

et al. 2023

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The permeability (k) and electrical resistivity of carbonate rocks with similar porosity (ϕ) may exhibit multiple orders of magnitude differences due to the diversity of pore types and the multiscale characteristics of pore size. As a result, traditional permeability-porosity and resistivity-porosity models usually have strong limitations when applied to carbonate reservoirs, let alone evaluate permeability from electrical resistivity. In this study, a new rock typing parameter named relative transport quality index (RTQI) is proposed to categorize rock samples using permeability and formation resistivity factor (F). Samples with similar RTQI values tend to have similar relative capacities of hydraulic and electrical transport. Subsequently, the classification performance and microscopic differences between RTQI and other rock typing indices including flow zone indicator (FZI), current zone indicator (CZI), and electrical quality index (EQI) were compared and discussed based on the reported petrophysical data of 316 carbonate rock samples. The results indicate that the RTQI method significantly reduces the scattering of k and F by dividing the samples into distinct groups, and each RTQI group corresponds to a special k−F correlation with a high determination coefficient. However, the number of rock types identified by different rock typing indices is different, meaning that samples belonging to the same rock type in the k−F plot of the RTQI method may be classified into different rock types in the k−ϕ plot of the FZI method and the F−ϕ plots of the CZI and EQI methods, which may be caused by the microscopic differences of rock typing parameters. Different from the strong dependence of FZI on hydraulic tortuosity and CZI/EQI on electrical tortuosity, RTQI is mainly dominated by the ratio of electrical tortuosity to hydraulic tortuosity. Additionally, in view of the good correlation between petrophysical data after rock typing, two workflows are proposed to estimate the hydraulic and electrical parameters of carbonate rocks from log data.

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Section: Data Materialsmentioning

confidence: 99%

Section: Current Zone Indicatormentioning

confidence: 99%

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confidence: 99%

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Comparative Study on Hydraulic and Electrical Transport Properties of Carbonate Rocks Based on Rock Typing

et al. 2023

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“…Local geomorphological landforms in Lebanon are influenced by the distribution of the associated physical characteristics of rocks which includes porosity, density, pore type and size, textural parameters, elastic characteristics (Salah et al, 2020). In such a way they mirror lithological structure of the region.…”

Section: Introductionmentioning

confidence: 99%

Geomorphology of the Beqaa Valley, Lebanon and Anti-Lebanon Mountains

Lemenkova

2022

Acta Scientifica Naturalis

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Geomorphology of Lebanon presents a unique pattern of contrasting landforms. These include two notable mountain ranges, the Lebanon and Anti-Lebanon Mountains, the Beqaa Valley, the elongated coastal area and a significant amount of karst relief forms. This study focuses on the investigation of the topographic and geologic setting of Lebanon by visualizing datasets covering Lebanon and Anti-Lebanon mountains and the Beqaa Valley. Data were collected using the open source repositories of the high-resolution data (GEBCO, ETOPO1, DEM embedded in R). Three 3D models of the relief of the country are presented based on the ‘grdview’ package of GMT with azimuth rotations of the view point at 205°/30° and 165°/30°. The geologic map is based on the compiled datasets of the USGS. The R based modelling allowed division of the raster grid into several geomorphological zones according to the slope steepness and aspect orientation. The extreme elevations of the study area range from -2007 m and 2973 m. The key contribution of this work is the topographic and geologic data synthesis for 2D and 3D modelling of Lebanon. Another aspect concerns technical integration of GMT and R scripting approaches with QGIS mapping into the cartographic framework for visualizing of the Lebanese topography as a multi-tool approach. For the future similar studies on Lebanon this paper can serve as a guide for completing a project on the multi-source 2D and 3D data mapping as a conceptual foundation for research on Lebanese environment.

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“…Several studies investigated the influence of microstructures (sedimentary and/or diagenetic), analysed from rock samples, on the acoustic and petrophysical properties of rocks Baechle et al 2008;Brigaud et al 2010;Soete. et al 2015;Reijmer et al 2021) including work on carbonates from central and northern Lebanon (Salah et al 2020a;Salah et al 2020b). Nonetheless, acoustic velocities vary with upscaling in response to different geological heterogeneities .…”

Section: Introductionmentioning

confidence: 99%

Geophysical Characterization of a Carbonate Platform Reservoir Based on Outcrop Analogue Study (Onshore, Lebanon)

Abbani

Adelinet²,

Inati

et al. 2022

83rd EAGE Annual Conference &Amp; Exhibition

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The end of thesis is a privileged moment to thank all the people who encouraged me and supported me to achieve this work. I would like to express my thanks to my supervisors, Ms.Mathilde Adelinet and Ms. Lama Inati. Thank you for your guidance and advice throughout this thesis project. Your efforts have been essential in guiding me and providing me with the knowledge and skills needed to complete this research, as well as to mitigating the difficulties tackled during my project. I sincerely thank you for your support that made these years enjoyable and successful. I would like to thank Mr. François Fournier and Mr. Yves Géraud as well for the time devoted to evaluating this thesis work as reviewers. I wish also to thank Mr. Jérôme Fortin, Mr. Ludovic Bodet, and Ms. Laetitia Le Pourhiet for having accepted to be the examiners of this thesis.I would like to express special thanks for Mr. Fadi Nader for contributing to this work, especially during the field work conducted at the beginning of this thesis project. The knowledge and experience he shared, as well as his comments throughout this project have indeed contributed to making this work successful. I would also like to thank Mr. Cédric Bailly for his contribution to this project, especially in the field work and the petrophysical laboratory measurements.My thanks also go to the Lebanese Petroleum Administration (LPA), for Mr. Wissam Chbat -

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Petrophysical and acoustic assessment of carbonate rocks, Zahle area, central Lebanon

Cited by 7 publications

References 78 publications

Comparative Study on Hydraulic and Electrical Transport Properties of Carbonate Rocks Based on Rock Typing

Comparative Study on Hydraulic and Electrical Transport Properties of Carbonate Rocks Based on Rock Typing

Geomorphology of the Beqaa Valley, Lebanon and Anti-Lebanon Mountains

Geophysical Characterization of a Carbonate Platform Reservoir Based on Outcrop Analogue Study (Onshore, Lebanon)

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