Thermodynamic modelling of asphaltene precipitation and related phenomena

Forte, Esther; Taylor, Spencer E.

doi:10.1016/j.cis.2014.12.002

Cited by 41 publications

(35 citation statements)

References 220 publications

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“…This model describes the asphaltene structure based on size and behavior as a function of the crude oil that contains the asphaltene. In light oils, with high API gravity, the asphaltene will be present as small polyaromatic hydrocarbon molecules with an average diameter of 1.5 nm (Forte and Taylor 2014;Mishra et al 2012;Seifert et al 2012;Mullins et al 2013). In this case, the asphaltene concentration will be relatively low, and thus, the asphaltene size will not grow.…”

Section: Yen-mullins Modelmentioning

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

144

103

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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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Section: Yen-mullins Modelmentioning

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

144

103

View full text Add to dashboard Cite

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“…It is for example practically impossible to fully specify crude oil and the same holds for many mixtures in biotechnological and polymer processes. Methods have been developed to handle this challenge, the most prominent of which is to use pseudo components (e.g., ). In some cases, also continuous thermodynamics can be applied (e.g., , ).…”

Section: Handling the Unknownmentioning

confidence: 99%

Digitalization in Thermodynamics

Forte

Jirasek

Bortz

et al. 2019

Chemie Ingenieur Technik

Self Cite

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Digitalization is about data and how they are used. This has always been a key topic in applied thermodynamics. In the present work, the influence of the current wave of digitalization on thermodynamics is analyzed. Thermodynamic modeling and simulation is changing as large amounts of data of different nature and quality become easily available. The power and complexity of thermodynamic models and simulation techniques is rapidly increasing, and new routes become viable to link them to the data. Machine learning opens new perspectives, when it is suitably combined with classical thermodynamic theory. Illustrated by examples, different aspects of digitalization in thermodynamics are discussed: strengths and weaknesses as well as opportunities and threats.

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“…To simulate the process of oil degassing in the bottom-hole formation zone, pumping of oil at a constant pressure, which is less than saturation pressure of the oil saturated by gas. As a result of this, asphaltenes contained in the oil, will be precipitated mainly within the pore space of the core sample [8,14,17,22,25,27,31,43]. 6.…”

Section: Description and Application Of Equipment And Processesmentioning

confidence: 99%

The Application of X-ray Micro Computed Tomography (Micro-CT) of Core Sample for Estimation of Physicochemical Treatment Efficiency

et al. 2015

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Today, the oil industry faces a number of problems encountered in exploration and exploitation of oil and gas fields. At the same time, thanks to the joint efforts of experts in various fields of science and technology, there are new kinds of specialized research, which in combination with other methods of laboratory and field testing can improve the efficiency of existing technologies through an integrated approach to data acquisition and analysis. At present, increasing attention of researchers is drawn to a variety of nondestructive testing methods (research) associated with the use of various types of computer tomography (X-ray, magnetic resonance and others.). Application of research of this type in combination with other methods is wide enough and is only limited by the scientific training and applied knowledge as well as the scientists' ability to invent. Particular attention is paid by the authors of this work to the following core areas of laboratory research: the study of the structure of the pore space of rock samples in order to evaluate the reservoir properties of the productive formation, complex filtration and tomographic studies to assess the extent of damage to the reservoir (as a result of the acid treatment, alkali treatment, hydraulic fracturing, killing operations on production and injection wells, evaluation of the depth of penetration of drilling mud filtrate into the formation, precipitation of resins, asphaltenes and paraffin in the bottomhole formation zone). Simulation of this process in a specially equipped laboratory allows for the assessment of the depth of penetration of the gelling agent into the formation or will help to establish the effectiveness of other ways to reduce water production, change the injectivity profile of injection wells, etc.This article presents the results of several types of special studies and a series of data to draw conclusions about the high significance of the research. The paper describes the standard type of study to assess the porosity of productive stratum rock (for example, collectors with hard to recover reserves of the Bazhenov Formation of Western Siberia), the method of evaluation of formation damage resulting from asphaltene deposits in the operation of wells with bottomhole pressure below the gas saturation pressure, and the results of the application of computer tomography in the evaluation of the results of classic acid treatment of bottom-hole zone of wells in carbonate hydrocarbon (oil and gas) bearing reservoirs. Studies have shown that the application of computer tomography in some cases, allows to obtain data on the processes of reduction or increase in permeability taking place in a core due to the introduction of any of compositions in the bottomhole formation zone. Construction of three-dimensional models can improve the degree of comprehensibility and effectively visualize data of models built (for example, models of porous space and the rock matrix). Ultimately, the results of X-ray computer tomography are very easy to understand, ...

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Thermodynamic modelling of asphaltene precipitation and related phenomena

Cited by 41 publications

References 220 publications

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

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

Digitalization in Thermodynamics

The Application of X-ray Micro Computed Tomography (Micro-CT) of Core Sample for Estimation of Physicochemical Treatment Efficiency

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