Hydraulic fracturing as unconventional production potential for the organic-rich carbonate reservoir rocks in the Abu El Gharadig Field, north western Desert (Egypt): Evidence from combined organic geochemical, petrophysical and bulk kinetics modeling results

Hakimi, Mohammed Hail; Hamed, Tamer E.; Lotfy, Naira M.; Radwan, Ahmed E.; Lashin, Aref; Rahim, Abdul

doi:10.1016/j.fuel.2022.126606

Cited by 18 publications

(10 citation statements)

References 56 publications

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“…In recent years, to enhance the permeability and compatibility of coal reservoirs, techniques, such as hydraulic fracturing 5 and hydraulic slitting, 6 have been predominantly employed for lowpermeability reservoir penetration. However, these methods are hindered by significant water consumption, environmental pollution, and limited operational scope, 7 which complicate the coexploitation of coal gas composite layers.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effects of High- and Low-Temperature Cyclic Impact on Pore and Fracture Distributions and Acoustic Emission Characteristics of Coal Measure Sandstone

Wang,

Kang,

Kang

et al. 2024

Energy Fuels

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Sandstone is a common type of rock found in coal measure reservoirs, and its pore and fracture distributions are key factors influencing the comining of coal and gas. To improve the structure of coal measure reservoirs and enhance interlayer compatibility, a method for high-and low-temperature cyclic impact on sandstone was developed in this study, and the effects of high-temperature (+200 °C) and low-temperature (−196 °C) cyclic impacts (number of cycles: 0, 1, 5, 10, and 15) on the pore and fracture distribution characteristics of sandstone were investigated. Ultrasonic testing, low-temperature nitrogen adsorption tests, micro-CT scanning, uniaxial compression tests, and acoustic emission (AE) tests were employed to analyze and characterize the distribution patterns of the pores and fractures in sandstone under different impact conditions. With the increase in the number of high-and low-temperature cyclic impacts, the peak pore and fracture diameters and porosities of the sandstone samples were found to increase logarithmically, whereas the P-wave velocity, uniaxial compressive strength, and AE b value decreased logarithmically. After the fifth high-and low-temperature cyclic impact, the relative decay rate of the P-wave velocity and the increase in the porosity of the sandstone samples reached maximum, which were 20.86% and 20.98%, respectively. The application of highand low-temperature cyclic impact could promote the development of pore fractures and the emergence of secondary fractures in sandstone, forming a pore network. The cyclic thermal impact helped improve the pore fracture distribution and increase the number of transport channels for coal gas molecules, thus enhancing the permeability and interlayer compatibility of sandstone and creating the necessary conditions for the colayering and comining of coal and gas.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effects of High- and Low-Temperature Cyclic Impact on Pore and Fracture Distributions and Acoustic Emission Characteristics of Coal Measure Sandstone

Wang,

Kang,

Kang

et al. 2024

Energy Fuels

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“…As a result, researchers in the oil industry have conducted extensive studies on the seepage mechanism of horizontal wells (Zhao et al 2021;Xia et al 2021;Zhang et al 2022). The development of unconventional oil and gas resources requires the use of hydraulic fracturing and other technologies (Li et al 2018;Singh et al 2020;Vishkai and Gates et al 2019;Hakimi et al 2023;Zhao et al 2022;Baouche et al 2022). Spencer et al (2013) reported on two horizontal tracer tests conducted on horizontal wells in the Eagle Ford Shale, providing insight into tracer response and the current Tracers with the same concentration are added to the fracturing fluid during the fracturing process, and then, the tracer concentration curve changes with time as flowback fluid is sampled, analyzed, and processed.…”

Section: Introductionmentioning

confidence: 99%

Application of micro-substance tracer test in fractured horizontal wells

Yang,

Guo,

Lin

et al. 2024

J Petrol Explor Prod Technol

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This paper delves into a novel micro-substance tracer test in fractured horizontal well C-15. The experimental results are highly encouraging as they demonstrate that the trace material tracer is capable of satisfying the testing demands, even when there are large numbers of fracturing stages involved. Data interpretation process involved dividing the test duration into two stages-fluid flowback period and stable production period. The tracer test data were employed to analyze the production profile of the well. The findings made it evident that the primary production stage underwent alterations in different production stages. Moreover, the degree of heterogeneity pertaining to each fracturing stage was characterized by employing the residence time distribution method. It was observed that the Lorentz coefficient lying between the primary production stage and the remaining fracturing stages ranged from 0.46 to 0.68. This study expands the application of the residence time distribution method for evaluating tracer testing. Through a comprehensive analysis of heterogeneity data within the fracturing stages and the production dynamics of the well, the effectiveness of the fracturing process can be assessed. This research enables reservoir operators to gain deeper insights into the dynamics of test wells, ultimately leading to increased production efficiency.

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“…Carbonate rocks are major energy resources worldwide, especially in the Middle East region, and they have wider application in other industries (e.g., Abd El Aal et al, 2023; Abdel‐Fattah et al, 2022; Abdullah et al, 2022; Balaky et al, 2023; Baouche et al, 2022; Boutaleb et al, 2022; Hakimi et al, 2023; Kassem et al, 2022; Radwan et al, 2020; Radwan et al, 2022; Ullah et al, 2023). Carbonate rocks contain the major hydrocarbon reserves in Saudi Arabia.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the influence of the degree of saturation on physical and mechanical properties of carbonate rocks in the Jurassic Tuwaiq Mountain Formation (Saudi Arabia)

et al. 2023

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Understanding the impact of saturation levels on the mechanical and physical properties of limestone and marly limestone deposits is very critical for geotechnical and mechanical studies in the energy and construction industries. This research aims to link the strength characteristics of carbonate rock (limestone and marly limestone) with physical and mechanical properties at saturation levels of 0, 0.25, 50%, 75% and 100%. To complete this work, 100 samples were collected and analysed employing an orderly research facility testing. According to experimental findings, the strength and durability of the limestone and marly limestone declined with rising saturation levels, while the P‐wave velocity Vp showed an upward trend from 0% to 100%. The uniaxial compressive strength (UCS) of the limestones employed in this research significantly decreased (up to 36%) between the dry and saturated stages for limestone samples. While marly limestone, there is a drop (up to 32%) in UCS. The findings of a straightforward regression study show that it is possible to predict the strength properties of rocks directly from various saturation levels. Additionally, a number of various estimate connections were created utilizing independent variables like Vp and saturation level. The experimental outcomes showed that Vp showed an upward tendency with an increasing degree of saturation. The deformability and strength parameters of the samples declined with increasing saturation degrees. The elastic modulus and strength both decrease as clay and water amounts increase. The quality index (QI) number for limestone is 45, which indicates that it has extremely good quality and can be used as a building material at 0% saturation. At 25%, 50%, 75% and 100% saturation, it is evaluated at 43, 40, 33 and 31, respectively. The marly limestone samples have high quality at 0% (QI = 36), but poor quality at 25%, 50%, 75% and 100% saturation (QI = 33, 30, 27 and 23). This research provides a better understanding of the relationship between saturation levels and the mechanical, physical and depositional characteristics of marly limestone and limestone, which might be helpful in industrial studies. Advance examination of distinctive sorts of carbonate rocks can be more supportive of broadening our understanding of this idea.

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Hydraulic fracturing as unconventional production potential for the organic-rich carbonate reservoir rocks in the Abu El Gharadig Field, north western Desert (Egypt): Evidence from combined organic geochemical, petrophysical and bulk kinetics modeling results

Cited by 18 publications

References 56 publications

Experimental Study on the Effects of High- and Low-Temperature Cyclic Impact on Pore and Fracture Distributions and Acoustic Emission Characteristics of Coal Measure Sandstone

Experimental Study on the Effects of High- and Low-Temperature Cyclic Impact on Pore and Fracture Distributions and Acoustic Emission Characteristics of Coal Measure Sandstone

Application of micro-substance tracer test in fractured horizontal wells

Experimental study of the influence of the degree of saturation on physical and mechanical properties of carbonate rocks in the Jurassic Tuwaiq Mountain Formation (Saudi Arabia)

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