Dynamic asphaltene deposition control in pipe flow through the application of DC potential

Hashmi, Muhammad Ihtsham; Ghosh, Bisweswar

doi:10.1007/s13202-014-0113-2

Cited by 15 publications

(10 citation statements)

References 28 publications

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“…The authors destabilized crude oil by the application of an electric field and found that asphaltenes can be deposited on a positive electrode as they possess negative charges . The electrodeposition on the positive electrode and the negative charge of asphaltenes is in line with the findings reported later by many authors. ,− Many other authors reported, however, deposition on the negative electrode and a positive charge of asphaltenes. ,,− ,− A comprehensive overview of scientific work reporting the negative and positive charge is given in Table along with the information about the conditions (medium/solution and electric field type) at which electrodeposition was achieved. There are several factors that govern the asphaltene electrodeposition process and determine on which electrode the deposition will take place.…”

Section: Electrodeposition Of Asphaltenessupporting

confidence: 63%

“…63 Later, Hashmi and Ghosh (2015) used crude oil and heptane-diluted crude oil in their experiments and investigated the possibility of controlling asphaltene deposition in metal pipes by applying a direct current. 118 The observations suggested that asphaltenes had a negative surface charge. The application of DC current resulted in quick and excessive asphaltene deposition on the anode.…”

Section: Electrodeposition Of Asphaltenesmentioning

confidence: 99%

“…On the basis of the experimental results, it was proposed that the asphaltene deposition in a flow system can be controlled by the optimal cathodic polarization. 118 In another investigation, Asaadian et al ( 2017) studied the stability of a crude oil in a direct current electric field and upon dilution of oil with n-hexane and water. 129 It was suggested that asphaltenes possessed positive charge in the pure crude oil; however, the precipitation on both electrodes in crude oil indicated that the positively charged asphaltene particles are surrounded by negatively charged resins and a dipole charge system exists between the asphaltenes and resins.…”

Section: Electrodeposition Of Asphaltenesmentioning

confidence: 99%

“…Higher dilution was found to increase the effect of DC potential in terms of the deposition rate and quantity of the deposited material. On the basis of the experimental results, it was proposed that the asphaltene deposition in a flow system can be controlled by the optimal cathodic polarization …”

Section: Electrodeposition Of Asphaltenesmentioning

confidence: 99%

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Review of Asphaltenes in an Electric Field

2021

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Asphaltenes are regarded as troublesome components of crude oils as their precipitation and deposition inside production wells and downstream infrastructure often result in a reduction of production capacity and, in critical cases, production shut-in. It has been shown that asphaltene deposition on conductive surfaces can be controlled by the application of an electric field. The electric field has been used to either inhibit or accelerate asphaltene deposition. This paper reviews asphaltene behavior in an electric field. It describes the structure and electric properties of asphaltenes as well as their electrokinetic behavior. State-of-the-art asphaltene electrodeposition and separation from both model and crude oils using electric fields are also discussed. The influence of parameters such as asphaltene chemistry, crude oil composition, pH, electric field strength, and flow conditions on the asphaltene electrodeposition process is addressed, and the effect of asphaltene interactions with themselves and other crude oil components is evaluated. A comprehensive literature survey reported the electrodeposition on both positive and negative electrodes, which suggests the complexity of the process. It has been shown that asphaltene charges can be tailored by changing the process parameters. Because of the high energy efficiency and relatively simple process, asphaltene electrodeposition is currently a key solution for removal of asphaltenes from crude oils. This review also highlights the main challenges and knowledge gaps associated with the asphaltene electrodeposition process.

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Section: Electrodeposition Of Asphaltenessupporting

confidence: 63%

Section: Electrodeposition Of Asphaltenesmentioning

confidence: 99%

Section: Electrodeposition Of Asphaltenesmentioning

confidence: 99%

Section: Electrodeposition Of Asphaltenesmentioning

confidence: 99%

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Review of Asphaltenes in an Electric Field

2021

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“…Asphaltene also forms dense clusters referred to as flocculations (Leandra et al 2018;Liu et al 2017;Fakher et al 2019). The flocculations have a high density and thus tend to deposit and plug the pore throats in the reservoir (Monger and Fu 1987;Kim et al 1990;Rassamdana et al 1996;Khamehchi et al 2018;Ihtsham and Ghosh 2015). The most severe of all the high molecular weight components is asphaltene (Thawer et al 1990).…”

mentioning

confidence: 99%

Critical review of asphaltene properties and factors impacting its stability in crude oil

Fakher

Ahdaya

Elturki

et al. 2019

J Petrol Explor Prod Technol

160

111

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Asphaltene is a component of crude oil that has been reported to cause severe problems during production and transportation of the oil from the reservoir. It is a solid component of the oil that has different structures and molecular makeup which makes it one of the most complex components of the oil. This research provides a detailed review of asphaltene properties, characteristics, and previous studies to construct a guideline to asphaltene and its impact on oil recovery. The research begins with an explanation of the main components of crude oil and their relation to asphaltene. The method by which asphaltene is quantified in the crude oil is then explained. Due to its different structures, asphaltene has been modeled using different models all of which are then discussed. All chemical analysis methods that have been used to characterize and study asphaltene are then mentioned and the most commonly used method is shown. Asphaltene will pass through several phases in the reservoir beginning from its stability phase up to its deposition in the pores, wellbore, and facilities. All these phases are explained, and the reason they may occur is mentioned. Following this, the methods by which asphaltene can damage oil recovery are presented. Asphaltene rheology and flow mechanism in the reservoir are then explained in detail including asphaltene onset pressure determination and significance and the use of micro-and nanofluidics to model asphaltene. Finally, the mathematical models, previous laboratory, and oilfield studies conducted to evaluate asphaltene are discussed. This research will help increase the understanding of asphaltene and provide a guideline to properly study and model asphaltene in future studies.

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Numerical investigation of two-phase flow encountered in electrically enhanced oil recovery

Peraki

Ghazanfari

Pinder

2018

J Petrol Explor Prod Technol

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The study of two-phase immiscible flow in porous media using electrokinetics is important in different fields including the remediation of hydrocarbon contaminated soils and enhanced oil recovery. While electrokinetic technology has been traditionally used for treatment and decontamination of hydrocarbon polluted sites, electrically enhanced oil recovery (EEOR) is relatively new. Although a few laboratory and field experiments have investigated the potential promise of the EEOR method, further investigation is necessary to better understand the fundamentals and the importance of different parameters/ processes that affect the oil production in this method. This study presents a numerical investigation of two-phase flow in EEOR method in an attempt to provide insight into the feasibility of, and the important parameters involved in this method. A sensitivity analysis is performed on important parameters involved in EEOR combined with water flooding. Most of the investigated reservoir and operational parameters were found to be significant and critical to the transport phenomena controlling the oil production. In addition, the results showed that the applied electrical gradient involved in EEOR combined with water flooding contributes to a small increase in oil production.

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Dynamic asphaltene deposition control in pipe flow through the application of DC potential

Cited by 15 publications

References 28 publications

Review of Asphaltenes in an Electric Field

Review of Asphaltenes in an Electric Field

Critical review of asphaltene properties and factors impacting its stability in crude oil

Numerical investigation of two-phase flow encountered in electrically enhanced oil recovery

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