Wet Electric Heating for Starting Up SAGD/VAPEX

Yuan, Jian-Min; Huang, Hua; Mintz, R.; Wang, X.; Jossy, C.; Tunney, Cathal

doi:10.2118/2004-130

Cited by 12 publications

(8 citation statements)

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“…The mechanism of electrical heating generally is divided into two types, electrical heating for vertical well and horizontal well using a thermal process either to heat steam chamber or direct heating into the near-wellbore of vertical well and horizontal well [13]- [16]. Electrical heating is also using the SAGD process heating the formation by gravity drainage [17], [18]. The amount of power is determined by the production rate and operational requirements, depending on each well and formation.…”

Section: Mechanisme Of Electrical Heatingmentioning

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: Mechanisme Of Electrical Heatingmentioning

confidence: 99%

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

Hasibuan¹,

Regina²,

Wahyu³

et al. 2020

Preprint

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“…They realized that the injection of saline water prior to heating will tend to concentrate the heating effects in low-permeability zones that would otherwise be largely bypassed by injected fluids. Yuang et al (2004) also simulated brine injection in wet electrical heating processes.…”

Section: Influence Of Saltwater Circulationmentioning

confidence: 99%

The Enhancement of a Low-Frequency Electrical Heating Method by Saltwater Circulation

Amiri

2012

Petroleum Science and Technology

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Low-frequency electrical heating is an effective method that can solve most of the problems of recover of highly viscous oil from a reservoir, such as low initial injectivity and shallow depth in launching common thermal injection processes. This technology has been recently field tested, yielding acceptable results. An associated important problem of electrical heating is the appearance of hot spots around the electrodes, which can be solved by water circulation. Furthermore, water circulation, in particular saltwater circulation, has a significant effect on the heating process due to the high electrical conductivity of the circulated water.In order to investigate the effect of saltwater circulation on process efficiency we studied the process using numerical simulation. The physical properties and operational data for Athabasca bitumen were collected from the literature. The model built using the CMG STARS simulator (Computer Modelling Group, Ltd., Calgary, Alberta, Canada) and tested with available analytical solutions was validated. The results indicate that the proper application of saltwater circulation in electrical heating methods dramatically influences the temperature propagation by increasing the electrical conductivity and extending the effective radius of the electrode, raising the heat convection and cooling the electrodes. After 3 years' simulation, a recovery factor of 40% was achieved.

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“…An economical method is necessary to reduce the time to warm up the formation and effectively establish well communication [17]. To solve these problems, Yuan et al (2004) created the study of fluid-assisted electrical heating in wellbores and simulated and forecasted the effect of electrical-heating-assisted SAGD start-up preheating through a numerical simulation [18]. The results showed that brine injection into the wellbore contributes to uniform electrical heating.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Numerical Simulation of an Electrical Preheating for SAGD Wells in Heavy Oil Reservoirs

Wang

Jiang

et al. 2022

Energies

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It is necessary to establish effective communication between two horizontal wells during the preheating period of steam-assisted gravity-drainage (SAGD). However, the preheating time is usually very long, which results in high steam consumption and CO2 emissions. There is little research on the effects of different wellbore fluids during the preheating period. The heat transfer and heating characteristics of different wellbore fluids–water, heat-conduction oil, and air–were explored by using physical experiments and numerical simulations. In this study, the results indicated that the heat-transfer performance of heat-conduction oil is the best. The numerical simulation’s results indicated that compared with the wellbore saturated with water, the heat-conduction oil reduced the viscosity of crude oil, and energy consumption was not obvious during the preheating stage. The super-heavy oil flowed into the wellbore due to the solubility of the heat-conduction oil and its own gravity. As a result, the super-heavy oil content in the wellbore gradually accumulated, increasing the risk of coking. Those experiments showed that the use of electrical heating provides good potential to improve SAGD efficiency during the preheating period, and water is the best injection fluid for wellbores during the electrical heating process.

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Wet Electric Heating for Starting Up SAGD/VAPEX

Cited by 12 publications

References 0 publications

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

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

The Enhancement of a Low-Frequency Electrical Heating Method by Saltwater Circulation

Experimental Study and Numerical Simulation of an Electrical Preheating for SAGD Wells in Heavy Oil Reservoirs

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