A comparative study of oil sands preheating using electromagnetic waves, electrical heaters and steam circulation

Sadeghi, Asghar; Hassanzadeh, Hassan; Harding, Thomas G.

doi:10.1016/j.ijheatmasstransfer.2017.04.060

Cited by 41 publications

(14 citation statements)

References 28 publications

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“…However, the thermal method has some disadvantages related to economic and environmental issues. This method also couldn't be applied to the reservoir which has high and clay contents, deep formations, and heterogeneous reservoirs [11]. Electrical heating is one of the thermal methods by transferring heat into the reservoir.…”

Section: Introductionmentioning

confidence: 99%

Electrical Heating for Heavy Oil: Past, Current, and Future Prospect

Hasibuan¹,

Regina²,

Wahyu³

et al. 2020

Preprint

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This paper presents a review of the electrical heating method for heavy oil recovery based on past, current, and future prospects of electrical heating. Heavy oil is one of the potential crude oil used as a link to reduce the crisis of light oil used today. The obstacle of heavy oil is a high viscosity and density in which thermal injection is a method for heavy oil recovery, but it results in economic and environmental issues. Electrical heating is one of the thermal methods by transferring heat into the reservoir. The basic process of electrical heating is to increase the mobility of the oil. Because the temperature rises, it can reduce oil viscosity and makes it easier for heavy oil to flow. The past and current developments have been carried out to fill up the gap of electrical heating projects. The future prospects must meet energy efficiency, and the excessive heat will damage formation that must be tackled in the future prospect. the works adopt several electrical heating projects and applications in the world where the works give a brief future prospect of electrical heating.

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Section: Introductionmentioning

confidence: 99%

Electrical Heating for Heavy Oil: Past, Current, and Future Prospect

Hasibuan¹,

Regina²,

Wahyu³

et al. 2020

Preprint

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“…Formation heat treatment (FHT) is a process with great potential in enhancing gas production from unconventional oil/gas reservoirs [1,[12][13][14]. Different heating technologies, such as an electrical heater, hot water flooding, high-temperature steam, in-situ combustion, and electromagnetic heating (microwave/radio frequency) and so on, were applied to the oil and gas industry [4,6,[15][16][17]. It is asserted that the heat treatment of shale gas reservoirs can enhance permeability in a similar way for oil shales [3,13].…”

Section: Introductionmentioning

confidence: 99%

“…Microwave heating (MWH) can be a potential alternative thermal stimulation technique to FHT [1,15,27,28]. Microwave is a kind of electromagnetic wave with wavelength (1 mm-1 m) and frequency (300 MHz-300 GHz) [17,28]. It is a form of energy (not heat), but can be converted into heat in the medium.…”

Section: Introductionmentioning

confidence: 99%

“…A MWH technique based on a down-hole radiating antenna is less affected by formation geology and is able to distribute heat over a larger reservoir volume due to the propagation of electromagnetic energy in the medium [27]. MWH has been widely employed for oil shale [16,[29][30][31][32], oil sands [17], heavy oil [15,27,[33][34][35], coal-bed methane (CBM) recovery [28], tight sandstone gas [14,36], but little attention has been paid to shale gas recovery. In all these studies, the two-dimensional model for electromagnetic heating on heavy oil/CBM was solved using a simulator based on the finite element method [28,33,34].…”

Section: Introductionmentioning

confidence: 99%

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A Fully Coupled Numerical Model for Microwave Heating Enhanced Shale Gas Recovery

Liu,

Wang,

Leung

et al. 2018

Energies

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Formation heat treatment (FHT) can be achieved by converting electromagnetic energy into heat energy (that is microwave heating or MWH). Experimental evidence shows that such FHT can significantly enhance oil and gas recovery. As relatively few research studies have been reported on microwave heating enhanced shale gas recovery (MWH-EGR), a fully coupled electromagnetic-thermo-hydro-mechanical (ETHM) model is developed for the MWH-EGR in the present study. In the ETHM model, a thermal-induced gas adsorption model is firstly proposed for shale gas adsorption and fitted by experimental data. This thermal-induced adsorption model considers the increase of matrix pore space due to the desorption of the adsorbed phase. Further, a thermal-induced fracture model in shale matrix is established and fitted by experimental data. Finally, this ETHM model is applied to a fractured shale gas reservoir to simulate gas production. Numerical results indicated that the thermal-induced fracturing and gas desorption make predominant contributions to the evolution of matrix porosity. The MWH can increase cumulative gas production by 44.9% after 31.7 years through promoting gas desorption and matrix diffusion. These outcomes can provide effective insights into shale gas recovery enhancement by microwave assistance.

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“…Inductive heating (from 1 to 200 kHz) applies a coil around the heating objects and relies on the eddy current to generate heat . High‐frequency heating (from 3 kHz to 300 GHz), i.e., radio or microwave frequency heating, generates heat through dipole rotation and ion conduction under a high‐frequency alternating electric field . This study focuses on the classification of high‐frequency heating that could heat up the reservoir to a high temperature within a short time.…”

Section: Introductionmentioning

confidence: 99%

Determination of the permittivity of n‐hexane/oil sands mixtures over the frequency range of 200 MHz to 10 GHz

Ahmadloo

2018

Can J Chem Eng

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Combined electromagnetic (EM) heating and solvent injection has been recently proposed to recover bitumen from oil sands due to its great environmental friendliness. The permittivity of oil sands with the presence of solvent is a crucial property for the design, evaluation, and optimization of this process. In this study, we use the open-ended coaxial probe method to measure the permittivity of oil sands over the frequency range of 200 MHz to 10 GHz. Results of the permittivity of the constituents of oil sands reveal that water is a major dielectric contributor; no relaxation phenomenon has been found for bitumen, sand, and n-hexane over the tested frequency range. Also, the results for the oil sands mixtures show that water content is crucial for the permittivity of oil sands; both the dielectric constant and loss factor are enhanced with an increasing water content. With the addition of n-hexane, the permittivity of bitumen slightly changes and fluctuates between the dielectric values of pure bitumen and n-hexane. As for the n-hexane/oil sands mixtures, the added n-hexane induces the asphaltene aggregation/flocculation, affecting the interaction between water and asphaltene and leading to an enhanced free water content in the oil sands. Consequently, the permittivity of oil sands significantly increases after n-hexane addition. Based on the experimental data, we evaluate the prediction accuracy of commonly used mixing models. A modified Lichtenecker-Rother model considering effective water saturation is proposed to accurately characterize the permittivity of n-hexane/oil sands mixtures. The obtained data and correlations can be useful when experimental data are missing.

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A comparative study of oil sands preheating using electromagnetic waves, electrical heaters and steam circulation

Cited by 41 publications

References 28 publications

Electrical Heating for Heavy Oil: Past, Current, and Future Prospect

Electrical Heating for Heavy Oil: Past, Current, and Future Prospect

A Fully Coupled Numerical Model for Microwave Heating Enhanced Shale Gas Recovery

Determination of the permittivity of n‐hexane/oil sands mixtures over the frequency range of 200 MHz to 10 GHz

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