Pore Fabric Anisotropy of the Cambrian–Ordovician Nubia Sandstone in the Onshore Gulf of Suez, Egypt: A Surface Outcrop Analog

El-Gendy, Nader; Abuamarah, Bassam A.; Nabawy, Bassem S.; Ghrefat, Habes; Kassem, Osama M. K.

doi:10.1007/s11053-019-09520-6

Cited by 34 publications

(5 citation statements)

References 51 publications

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“…By contrast, porosity (∅ in%) is a complementary component of the crystal’s volume (equal to 100–∅ in%), i.e., it has indirect effects on the studied samples [ 34 , 52 , 53 ]. Porosity is considered an additional parameter that controls the electrical polarization and conductivity of samples.…”

Section: Resultsmentioning

confidence: 99%

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Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

et al. 2022

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The utility of recycling some intensive industries’ waste materials for producing cellular porous ceramic is the leading aim of this study. To achieve this purpose, ceramic samples were prepared utilizing both arc furnace slag (AFS) and ceramic sludge, without any addition of pure chemicals, at 1100 °C. A series of nine samples was prepared via increasing AFS percentage over sludge percentage by 10 wt.% intervals, reaching 10 wt.% sludge and 90 wt.% AFS contents in the ninth and last batch. The oxide constituents of waste materials were analyzed using XRF. All synthesized samples were investigated using XRD to detect the precipitated minerals. The developed phases were β-wollastonite, quartz, gehlenite, parawollastonite and fayalite. The formed crystalline phases were changed depending on the CaO/SiO2 ratio in the batch composition. Sample morphology was investigated via scanning electron microscope to identify the porosity of the prepared ceramics. Porosity, density and electrical properties were measured; it was found that all these properties were dependent on the composition of starting materials and formed phases. When increasing CaO and Al2O3 contents, porosity values increased, while increases in MgO and Fe2O3 caused a decrease in porosity and increases in dielectric constant and electric conductivity. Sintering of selected samples at different temperatures caused formation of two polymorphic structures of wollastonite, either β-wollastonite (unstable) or parawollastonite (stable). β-wollastonite transformed into parawollastonite at elevated temperatures. When increasing the sintering temperature to 1150 °C, a small amount of fayalite phase (Fe2SiO4) was formed. It was noticed that the dielectric measurements of the selected sintered samples at 1100 °C were lower than those recorded when sintering temperatures were 1050 °C or 1150 °C.

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Section: Resultsmentioning

confidence: 99%

“…The grain density (ρ g ) of the studied samples was measured using a helium pycnometer at the ambient conditions. Then, the helium porosity (∅ He ) was estimated considering the bulk and grain densities, as follows [ 32 , 33 , 34 ]: ∅ He (%) = 100 × (ρ g − ρ b )/ρ g …”

Section: Experimental Techniquesmentioning

confidence: 99%

Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

et al. 2022

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“…Diagenetic features that characterize the Nubian sandstones in Sidki field encompasses post compaction cementation, aggrading recrystallization, pressure solution effects, corrosion and partial replacement, and development of authigenic clays, particularly kaolinite, illite and chlorite. Several regional studies have described the diagenetic processes impacting the Nubian sandstones in the Gulf of Suez, Sinai and Eastern Desert basins [76][77][78][79][80].…”

Section: Geological Characterization Of the Nubian 'C' Reservoirmentioning

confidence: 99%

Reservoir Formation Damage; Reasons and Mitigation: A Case Study of the Cambrian–Ordovician Nubian ‘C’ Sandstone Gas and Oil Reservoir from the Gulf of Suez Rift Basin

et al. 2021

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Reservoir formation damage is a major problem that the oil and gas industry has to mitigate in order to maintain the oil and gas supply. A case study is presented that identifies the impacts of formation damage and their causes in the Nubian ‘C’ hydrocarbon reservoir within Sidki field located in the Southern Gulf of Suez, Egypt. In addition, a formation damage mitigation program was designed and implemented involving an effective stimulation treatment for each well experiencing reservoir damage. The data available for this study include core analysis to provide rock mineralogy and lithology; analysis of production fluid data; water chemistry; drilling fluid composition; perforations and well completion details; workover operations; and stimulation history. The diagnosis of formation damage based on the integrated assessment of the available data is associated with several benefits, (1) The integration of the data available helps provide a robust analysis of formation damage causes and in establishing suitable remediation actions, (2) Workover fluid is confirmed as the primary cause of reservoir damage in the studied well, (3) Several reservoir damage mechanisms were identified including water blockage, solids and filtrate invasion, fluid/rock interaction (deflocculation of kaolinite clay), salinity shock and/or high-sulfate content of the invaded fluid, (4) Irrespective of the potential causes of formation damage, the primary objective of a gas production company is to mitigate its effects and the integrated dataset helps to design appropriate and effective stimulation treatments to overcome formation damage, and (5) In gas reservoirs, especially low permeability ones, extra precautions are necessary to avoid potential reservoir damage due to workover fluid invasion.

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“…In order to check anisotropy of the reservoir plug samples, permeability anisotropy (λ k ) was calculated using the horizontal and vertical permeability (k H , k V ) values as follows (Serra, 1988;Nabawy and ElHariri, 2008;Nabawy, 2018;Elgendy et al, 2020):…”

Section: Petrophysical Studiesmentioning

confidence: 99%

Implementation of a Petrographical and Petrophysical Workflow Protocol for Studying the Impact of Heterogeneity on the Rock Typing and Reservoir Quality of Reefal Limestone: A Case Study on the Nullipore Carbonates in the Gulf of Suez

Safa

Nabawy

Basal

et al. 2021

Acta Geologica Sinica (Eng)

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Pore Fabric Anisotropy of the Cambrian–Ordovician Nubia Sandstone in the Onshore Gulf of Suez, Egypt: A Surface Outcrop Analog

Cited by 34 publications

References 51 publications

Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

Reservoir Formation Damage; Reasons and Mitigation: A Case Study of the Cambrian–Ordovician Nubian ‘C’ Sandstone Gas and Oil Reservoir from the Gulf of Suez Rift Basin

Implementation of a Petrographical and Petrophysical Workflow Protocol for Studying the Impact of Heterogeneity on the Rock Typing and Reservoir Quality of Reefal Limestone: A Case Study on the Nullipore Carbonates in the Gulf of Suez

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