Comparison and evaluation of several models in prediction of asphaltene deposition profile along an oil well: a case study

Kor, Peyman; Kharrat, Riyaz; Ayoubi, Abdoljalal

doi:10.1007/s13202-016-0269-z

Cited by 19 publications

(6 citation statements)

References 39 publications

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“…, where K j is a shape factor (1.84 and 0.9 for L a and L c , respectively), β is the line broadening, and θ j the position corresponding to the (10) and (002) bands, respectively, for the L a and L c lattice parameters [183][184][185].…”

Section: Scattering Techniques and Fractal Nature Of Bitumen Microsct...mentioning

confidence: 99%

“…From the analysis of the XRD pattern, a lamellar configuration stabilized by π-π interactions was derived, as sketched in Figure 9, characterized by the interlayer distance (dM) and the distance between the saturated portions of the cluster (dγ). The thickness (Lc) and diameter (La) of the aromatic sheets can be estimated from the Scherrer equation 𝐿 , where Kj is a shape factor (1.84 and 0.9 for La and Lc, respectively), β is the line broadening, and θj the position corresponding to the (10) and (002) bands, respectively, for the La and Lc lattice parameters [183][184][185]. Interestingly, both the γ and graphene (002) bands were also observed in liquid phase in the WAXS spectra [130].…”

Section: Scattering Techniques and Fractal Nature Of Bitumen Microsct...mentioning

confidence: 99%

“…ASPs are often referred to as the "cholesterol of petroleum" [9], a term borrowed from medical terminology to define the clogging effect occurring in wellbores and transportation pipelines caused by the precipitation, deposition and dense flocculation of ASPs subjected to certain physicochemical conditions [10]. Each year, the damage caused by the deposition of ASPs results in the loss of billions of dollars in the oil industry, which also is reflected in reduced production capacity, wells prematurely shutting-in, and implications for management techniques [11].…”

Section: Introductionmentioning

confidence: 99%

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The Structure of Bitumen: Conceptual Models and Experimental Evidences

et al. 2022

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Bitumen, one of the by-products of petroleum industry processes, is the most common binder used in road pavements and in the construction industry in general. It is a complex organic mixture of a broad range of hydrocarbons classified into four chemical families, collectively known with the acronym SARA fractions, which include saturates, aromatics, resins and asphaltenes. Since the 1940s, researchers working on bitumen and the science behind its existence, nature and application have investigated the spatial organization and arrangement of several molecular species present in the binder. Therefore, several models have been proposed in the literature, and they are more or less corroborated by experimental studies, although most of them are model-dependent; for example, the structural investigations based on scattering techniques. One of the most popular models that has met with a wide consensus (both experimentally and of the modeling/computational type) is the one aiming at the colloidal description of bitumen’s microstructure. Other types of models have appeared in the literature that propose alternative views to the colloidal scheme, equally valid and capable of providing results that comply with experimental and theoretical evidence. Spurred by the constant advancement of research in the field of bitumen science, this literature review is aimed at providing a thorough, continuous and adept state of knowledge on the modeling efforts herein elaborated, in order to more precisely describe the intricacy of the bituminous microstructure. In this body of work, experimental evidence, along with details of bitumen’s microstructure (depicting the colloidal state of bitumen), is particularly emphasized. We will also try to shed light on the evolution of the experimental and theoretical results that have focused on the aspect of the association and aggregation properties of asphaltenes in various models and real systems.

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Section: Scattering Techniques and Fractal Nature Of Bitumen Microsct...mentioning

confidence: 99%

Section: Scattering Techniques and Fractal Nature Of Bitumen Microsct...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Structure of Bitumen: Conceptual Models and Experimental Evidences

et al. 2022

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“…Because of thermodynamic equilibrium between the crude oil components, asphaltene is naturally suspended in crude oil; however, any disturbance such as pressure or composition changes results in accumulation and precipitation of asphaltene. Hydrocarbon production from oil reservoirs as well as fluids injection for secondary or tertiary oil recovery would affect the thermodynamic equilibrium which result in asphaltene precipitation and deposition in the reservoir and production facilities (Escobedo and Mansoori 2010;Kor et al 2017;Mansoori 2009;Rabbani et al 2018). Different remedial methods for removing asphaltene deposits have been proposed and implemented from which application of aromatic solvent including toluene and xylene is among the most widely used (Mansoori and Elmi 2010).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on asphaltene biodegradability using microorganism: cell surface properties’ approach

Iraji

Ayatollahi

2018

J Petrol Explor Prod Technol

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Asphaltene precipitation is known to be responsible for serious challenges in oil industry such as wellbore damage, oil flow reduction, and plugging of transportation lines. The traditional methods to remove asphaltene deposition are mostly based on chemical solvent. One of the recent proposed green and cost-effect remedial methods is the application of microorganisms capable of consuming the heavy hydrocarbon chains. The cell surface hydrophobicity among others effectively manipulates the efficiency of the microorganism for asphaltene degradation. Besides, surface active agents would affect the microorganism adhesion and cell surface properties, and alters its hydrophobicity. Investigating the effect of these parameters on biodegradability of asphaltene leads to a better understanding of the microorganism effects on asphaltenic oil. In the current investigation, different asphaltenic solutions with the concentration of 2, 4, and 10 g/l are prepared using different southern Iranian crude oil sources, namely Ahwaz-Bangestan and Kuh-e-Mond oil fields. To estimate asphaltene biodegradability, the solutions were used as a carbon source for three different microorganisms namely Enterobacter cloacae, Enterobacter cloacae, and Pseudomonas aeruginosa for a period of 10 days, while the temperature and rotational speed were kept constant under 40 °C and 150 rpm, respectively. The tests were also repeated using sodium dodecyl benzene sulfonate as surface active agent to evaluate the effect of surfactant on microorganism adhesion and cell surface hydrophobicity. The results pointed to the direct effects of the initial concentration of asphaltene in the solution as well as the presence of surfactant which alters the cells hydrophobicity and leads to more asphaltene biodegradability up to 49%.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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“…Today, asphaltene is defined as "the heaviest component of petroleum fluids that is insoluble in light n-alkanes such as n-pentane or n-heptane, but soluble in aromatics such as toluene" (Goual 2012). Asphaltene is therefore a solid component of crude oil with an extremely high molecular weight (Mozaffari et al , 2017a(Mozaffari et al , b, 2018Struchkov et al 2019;Kor et al 2017;Nwadinigwe et al 2015). This is the main reason causing it to be extremely problematic, since it can form dense flocculations and deposits in reservoir, wellbores, and transportation pipelines and thus can cause severe operational and production problems.…”

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

181

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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Comparison and evaluation of several models in prediction of asphaltene deposition profile along an oil well: a case study

Cited by 19 publications

References 39 publications

The Structure of Bitumen: Conceptual Models and Experimental Evidences

The Structure of Bitumen: Conceptual Models and Experimental Evidences

Experimental investigation on asphaltene biodegradability using microorganism: cell surface properties’ approach

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

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