Application of Electrokinetics for Enhanced Oil Recovery

Hill, Donald G.

doi:10.1002/9781118842805.ch3

Cited by 4 publications

(6 citation statements)

References 33 publications

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“…1 Gas condensate phase envelope Fig. 2 Schematics of gas condensate banking (Ikpeka et al 2020) have shown significant improvement in oil recovery when direct current is passed through the core samples (Ansari et al 2015b;Ghosh et al 2012;Hill 2014;Yim et al 2017;Wentong Zhang et al 2019a, b). Numerical investigation conducted by Peraki et al (2018) reported an increase in oil recovery when electric current is combined with waterflooding.…”

Section: Introductionmentioning

confidence: 99%

Effect of direct current on gas condensate droplet immersed in brine solution

Ikpeka

Ugwu

Pillai

et al. 2021

J Petrol Explor Prod Technol

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Environmentally sustainable methods of extracting hydrocarbons from the reservoir are increasingly becoming an important area of research. Several methods are being applied to mitigate condensate banking effect which occurs in gas condensate reservoirs; some of which have significant impact on the environment (subsurface and surface). Electrokinetic enhanced oil recovery (EEOR) increases oil displacement efficiency in conventional oil reservoirs while retaining beneficial properties to the environment. To successfully apply this technology on gas condensate reservoirs, the behavior of condensate droplets immersed in brine under the influence of electric current need to be understood. A laboratory experiment was designed to capture the effect of electrical current on interfacial tension and droplet movement. Pendant drop tensiometry was used to obtain the interfacial tension, while force analysis was used to analyze the effect of the electrical current on droplet trajectory. Salinity (0–23 ppt) and electric voltage (0–46.5 V) were the main variables during the entire experiment. Results from the experiment reveal an increase in IFT as the voltage is increased, while the droplet trajectory was significantly altered with an increase in voltage. This study concludes that the interfacial tension increases progressively with an increase in DC current, until its effect counteracts the benefit obtained from the preferential movement of condensate droplet.

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Section: Introductionmentioning

confidence: 99%

Effect of direct current on gas condensate droplet immersed in brine solution

Ikpeka

Ugwu

Pillai

et al. 2021

J Petrol Explor Prod Technol

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“…The improved recoveries observed in these studies were attributed to electrical double layer expansion of oil-brine-rock interface, movement of charged ions from the anode to the cathode, drag-force transfer of water molecules associated with charged ion movement, disintegration of water molecules into constituent gaseous and ionic phases, movement of colloid particles, viscosity reduction, and thermal mobility of reservoir fluid [32,34,49,62]. Hill [36], while using the concept of coupled flow, identifies 5 mechanisms that occur when electric current is introduced to the reservoir: Joule heating, electromigration, electrophoresis, electroosmosis, and electrochemically enhanced reactions.…”

Section: Ek-eor Mechanismmentioning

confidence: 89%

“…The introduction of electric current into the reservoir, has shown significant improvement in hydrocarbon recovery based on laboratory studies [18,64,65] and preliminary field deployment [36,37,46]. The improved recoveries observed in these studies were attributed to electrical double layer expansion of oil-brine-rock interface, movement of charged ions from the anode to the cathode, drag-force transfer of water molecules associated with charged ion movement, disintegration of water molecules into constituent gaseous and ionic phases, movement of colloid particles, viscosity reduction, and thermal mobility of reservoir fluid [32,34,49,62].…”

Section: Ek-eor Mechanismmentioning

confidence: 99%

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Effectiveness of electrokinetic-enhanced oil recovery (EK-EOR): a systematic review

et al. 2022

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Hydrocarbons continue to play an important role in providing affordable energy to meet rising energy demand. Amidst growing concerns on the environmental impact of oil and gas production processes, many researchers are increasingly exploring environmentally sustainable methods of extracting hydrocarbons from the reservoir. The introduction of direct current into the pore space activates mechanisms that enhance fluid flow, reduces produced water, decreases associated hydrogen sulfide production, and leaves no material footprint on the environment. Previous laboratory studies and field applications have reported varying degrees of success of the EK-EOR mechanism. However, the mechanism and effectiveness of this technique remain unclear. This systematic literature review provides an opportunity to critically evaluate laboratory results, establish a basis for the effectiveness of the EK-EOR mechanism and identify possible future research directions. In this study, 52 articles were identified and reviewed in a selection process that adhered to the PRISMA protocol. Data extracted from these articles were fed into the EK-EOR model, and Monte Carlo simulation (10,000 iterations) was used to determine the success rate of the EK-EOR process. Insights obtained from the simulation indicate that EK-EOR alone is not effective (with a success rate of 45%). Insights from published laboratory experiments indicate that interstitial clay affects the electro-osmotic permeability of reservoir rocks which determines the effectiveness of the EK-EOR mechanism. Salt deposition on the cathode and generation of gases (oxygen and chlorine at the anode) are significant limitations of the EK-EOR. The review concludes by identifying future areas of application of EK-EOR.

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“…Most of the heavy oil comes from conventional oil that is deposited in deep formations, but it migrates to areas that are affected by bacteria and weathering [8]. Therefore, a conventional method can't be applied in low API (<20) reservoir [9], heavy oil/bitumen can be produced using both thermal and steam injection that can help to reduce the viscosity of heavy oil [10]. There are two methods of reservoir heating which most of them are electrical heating and thermal injection.…”

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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Application of Electrokinetics for Enhanced Oil Recovery

Cited by 4 publications

References 33 publications

Effect of direct current on gas condensate droplet immersed in brine solution

Effect of direct current on gas condensate droplet immersed in brine solution

Effectiveness of electrokinetic-enhanced oil recovery (EK-EOR): a systematic review

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

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