A coupled thermo-hydro-mechanical-chemical model for production performance of oil shale reservoirs during in-situ conversion process

Huang, HanWei; Yu, Hao; Xu, Wenlong; Lv, ChengSi; Micheal, Marembo; Xu, HengYu; Li, He; Wu, HengAn

doi:10.1016/j.energy.2023.126700

Cited by 18 publications

(10 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fitting results show that the porosity and pore radius were approximately positively correlated with the heat treatment temperature (Figure 4a,b), while the tortuosity was negatively correlated with the heat treatment temperature (Figure 4c). According to the characteristics of the relationship curve, porosity, pore radius, and tortuosity could be divided into three stages with the increase in heating temperature, as shown in Figure 4, corresponding to the three-stage change in the pore structure of oil shale [39][40][41]. In the three stages of <300, 300~550, and >550 degrees centigrade, the pore structure was mainly controlled through inorganic thermal stress, pyrolysis, and inorganic cracking.…”

Section: Influence Of Heating Temperature On Shale Matrix Transportmentioning

confidence: 99%

Study on the Inner Mechanisms of Gas Transport in Matrix for Shale Gas Recovery with In Situ Heating Technology

Li,

Hu,

et al. 2024

Processes

View full text Add to dashboard Cite

In order to improve the productivity of shale gas, in situ heating technology has been applied generally. However, this technology is limited by unknown properties in heated matrix, e.g., permeability. Therefore, a method for measuring the permeability of heated shale matrix particles was designed, and transport tests were conducted on the shale matrix at heating temperatures of 100~600 degrees centigrade. Through fitting the experimental data with numerical simulation results, pore structures and permeabilities at different heating temperature conditions were obtained and the corresponding transport properties were determined. The porosity and pore radius were positively correlated with the heating temperature, while the tortuosity was negatively correlated with the temperature of the heat treatment. Despite the weakening effect of Knudsen diffusion transport, slippage transport played a critical role in the transport function of the heated shale matrix, and the domination became stronger at higher heating temperatures. The study of gas transport in heated shale matrix provides a guarantee for the effective combination of in situ heating technology.

show abstract

Section: Influence Of Heating Temperature On Shale Matrix Transportmentioning

confidence: 99%

Study on the Inner Mechanisms of Gas Transport in Matrix for Shale Gas Recovery with In Situ Heating Technology

Li,

Hu,

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

“…To explore the generation process of oil and gas, the evolution of kerogen pyrolytic products in a closed system was studied in detail [7,12,14,54]. In general, pyrolytic products generated from kerogen can be described as follows [7,[10][11][12][13][14][15][16]:…”

Section: Medium-temperature Stagementioning

confidence: 99%

“…The factors affecting the efficiency of in situ conversion mainly include the final pyrolytic temperature, heating rate, and constant temperature time [7,55]. From the experimental simulation and field experiments, it can be concluded that the pyrolysis of kerogen has an initial temperature (ICT) regardless of what kind of shale-oil conversion technology is used [7,11,20,44,45,[49][50][51][55][56][57]. Therefore, only when the temperature exceeds the ICT is the increase in heat carrier energy called effective pyrolysis energy [20].…”

Section: Medium-temperature Stagementioning

confidence: 99%

“…Fan et al observed that heating well spacing significantly impacts shale formation temperature through analog computation [11,68]. The larger the spacing of the heating wells is, the earlier and sharper the peak of the oil and gas yield is.…”

Section: Distribution Pattern Of Wellsmentioning

confidence: 99%

“…Kerogen cracking to generate oil and gas is a complicated chemical process that is mainly affected by kinetic effects [8,9]. A large number of pyrolytic experiments have been conducted in closed, semiclosed, or open systems to investigate the hydrocarbon generation process and calculate the kinetic parameters [7,[10][11][12][13][14][15][16]. These studies indicated that petroleum products generated from organic-rich shale depend on the features of shale and pyrolytic conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Technical Scheme and Application Prospects of Oil Shale In Situ Conversion: A Review of Current Status

2023

View full text Add to dashboard Cite

Petroleum was the most-consumed energy source in the world during the past century. With the continuous global consumption of conventional oil, shale oil is known as a new growth point in oil production capacity. However, medium–low mature shale oil needs to be exploited after in situ conversion due to the higher viscosity of oil and the lower permeability of shale. This paper summarizes previous studies on the process of kerogen cracking to generate oil and gas, and the development of micropore structures and fractures in organic-rich shale formations during in situ conversion. The results show that the temperature of kerogen cracking to generate oil and gas is generally 300–450 °C during the oil shale in situ conversion process (ICP). In addition, a large number of microscale pores and fractures are formed in oil shale formation, which forms a connecting channel and improves the permeability of the oil shale formation. In addition, the principles and the latest technical scheme of ICP, namely, conduction heating, convection heating, reaction-heat heating, and radiation heating, are introduced in detail. Meanwhile, this paper discusses the influence of the heating mode, formation conditions, the distribution pattern of wells, and catalysts on the energy consumption of ICP technology in the process of oil shale in situ conversion. Lastly, a fine description of the hydrocarbon generation process of the target formation, the development of new and efficient catalysts, and the support of carbon capture and storage in depleted organic-rich shale formations after in situ conversion are important for improving the future engineering efficiency of ICP.

show abstract

A characterization study of Wadi Thamad oil shale: Towards a new source of energy in Jordan

Al‐Ananzeh,

Bani‐Melhem,

Khasawneh

et al. 2024

Energy Science & Engineering

View full text Add to dashboard Cite

Jordan's energy sector faces significant challenges due to rising fuel prices, making the exploration of local energy resources crucial. The abundant oil shale deposits in Wadi Thamad present a promising opportunity. Since Wadi Thamad oil shale has never been studied before, this research focuses on the Wadi Thamad basin near Madaba, Jordan, aiming to comprehensively characterize its oil shale using advanced analytical techniques. Using X‐ray diffraction, Fourier transform infrared spectroscopy, X‐ray fluorescence, scanning electron microscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry, this study assesses the mineralogical, chemical, and thermal properties of Wadi Thamad oil shale. The findings reveal calcite and quartz as the primary minerals, with significant aliphatic, CO2, hydroxyl, and carboxyl groups. Elemental analysis highlights essential oxides, such as CaO and SiO2. Fischer assay results indicate an oil content of 5.3–10.1 wt%, a gross‐calorific value of 4.56–7.69 MJ/kg, and a sulfur content of 1.77–2.10 wt%. The peak pyrolysis temperature is 432.4°C from TGA. This research's novelty lies in its comprehensive approach to characterizing the underexplored Wadi Thamad oil shale basin. The findings enhance the understanding of Wadi Thamad's geological composition and underscore its potential as a local energy resource, contributing valuable data to Jordan's energy portfolio and offering economic benefits.

show abstract

A coupled thermo-hydro-mechanical-chemical model for production performance of oil shale reservoirs during in-situ conversion process

Cited by 18 publications

References 69 publications

Study on the Inner Mechanisms of Gas Transport in Matrix for Shale Gas Recovery with In Situ Heating Technology

Study on the Inner Mechanisms of Gas Transport in Matrix for Shale Gas Recovery with In Situ Heating Technology

Technical Scheme and Application Prospects of Oil Shale In Situ Conversion: A Review of Current Status

A characterization study of Wadi Thamad oil shale: Towards a new source of energy in Jordan

Contact Info

Product

Resources

About