Theoretical And Numerical Investigation Of The Rheology Of Heavy Crude Oil

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Theoretical and Numerical Investigation of the Rheology of Heavy Crude Oil

Author : Fatema Akter Happy
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (132 download)

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Book Synopsis Theoretical and Numerical Investigation of the Rheology of Heavy Crude Oil by : Fatema Akter Happy

Download or read book Theoretical and Numerical Investigation of the Rheology of Heavy Crude Oil written by Fatema Akter Happy and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The rheological study of heavy crude oil is important in the field of petroleum engineering. The rheological properties of heavy oil (e.g., shear stress, shear rate, viscosity, etc.) depend on several factors including temperature, pressure, surface tension, diluent type and diluent composition, pH, shear stress and thermal histories, memory, and shear conditions during the analysis. The investigation of the rheology of heavy crude oil flow is a critical issue for both upstream and downstream operations. The objective of this study is to perform an investigation on the rheological properties of heavy crude oil to show the effect of shear rate, temperature, and pressure on the viscosity and the shear stress. The aim of this work was to broaden current knowledge of the rheological behavior and flow characterization of heavy crude oil. This paper takes a new look at the shear stress-strain relationship by considering the memory effect along with temperature effect on the shear rate. It is considered that the viscosity of the heavy crude oil is a function of pressure, temperature, and shear rate. As the heavy crude oil is considered as a Bingham fluid, Bingham model is employed here for the analysis. The experimental data from previous studies are used to complete the analysis. To develop the model, a modified Darcy's law that employs the effect of memory on the Bingham model is considered. The effect of temperature has been incorporated by the Arrhenius equation for the development of a new model to study the heavy crude oil rheological behaviors. The relationship between shear stress and viscosity has been shown at different fractional derivative order and time. The validation and the simulation of the model are performed by using the experimental and the field data from the literature. The numerical simulation of this model is conducted by using the MATLAB simulation software. From the sensitivity analysis, it is found that the temperature has the highest impact on the viscosity over the pressure and the shear rate. On the other hand, the pressure shows a strong effect on the shear stress-shear rate relationship over the temperature. In the model analysis, it is found that the fluid memory affects in the Bingham model due to nonlinear behavior of heavy crude oil. The shear stress increases with decreasing viscosity at different fractional derivative order and time. The change in shear stress is high at large fractional derivative. The range of fractional derivative order is from 0.2 to 0.8. When fractional derivative order,

Theoretical and Experimental Studies of Selected Topics in the Rheology of Fluids

Author : Daniel D. Joseph
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Theoretical and Experimental Studies of Selected Topics in the Rheology of Fluids by : Daniel D. Joseph

Download or read book Theoretical and Experimental Studies of Selected Topics in the Rheology of Fluids written by Daniel D. Joseph and published by . This book was released on 1988 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical and experimental studies of the consequences of short-term elastic response in liquids. Theoretical studies include analysis of the origins of viscosity in relaxing elasticity, the analysis of equations of motions according to type; e.g., hyperbolic or elliptic, with particular attention to problems of identification of physical phenomena and numerical analysis of flow associated with (1) change of type from subcritical to supercritical conditions in steady flow (transonic problems), (2) loss of well-posedness or short wave length instabilities in unsteady flow, (3) regularization of short wave instabilities with viscosity. A wave speed meter enables us to measure the effective shear modulus in liquids. The wave are developing an instrument to measure the speed of shear waves into a sheared media. We discovered delayed die swell and demonstrated experimentally that it is a critical phenomenon which appears to be like a hydraulic jump with speed greater than the shear. The fluidization of particles at finite, but even small Reynold numbers was dominated by local mechanisms associated with wakes and turning couples on long bodies. One sphere falls in the wake of another, they kiss, then tumble by the action of the turning couple which turns long bodies broadside onto the stream. These mechanisms lead to a stable arrays of spheres aligned perpendicular to the stream giving a physical foundation to the mathematical assumption that there are regimes of flow governed by one dimensional equations. A complete linearized analysis of the stability of water lubricated pipelining of viscous oils includes all of the main physical mechanisms underway, except gravity. The theory appears to be in good agreement with experiments. (jhd).

Petroleum Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1752 pages
Book Rating : 4.F/5 ( download)

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Download or read book Petroleum Abstracts written by and published by . This book was released on 1993 with total page 1752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied Mechanics Reviews

Author :
Publisher :
ISBN 13 :
Total Pages : 1066 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1986 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rheology of Heavy Crude Oil and Viscosity Reduction for Pipeline Transportation

Author : Shadi Hasan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Rheology of Heavy Crude Oil and Viscosity Reduction for Pipeline Transportation by : Shadi Hasan

Download or read book Rheology of Heavy Crude Oil and Viscosity Reduction for Pipeline Transportation written by Shadi Hasan and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Theoretical Rheology

Author : British Society of Rheology
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Theoretical Rheology by : British Society of Rheology

Download or read book Theoretical Rheology written by British Society of Rheology and published by . This book was released on 1975 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Topics in the Transport and Rheology of Heavy Crude Oils

Author : Geraldo Spinelli Ribeiro
Publisher :
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Topics in the Transport and Rheology of Heavy Crude Oils by : Geraldo Spinelli Ribeiro

Download or read book Topics in the Transport and Rheology of Heavy Crude Oils written by Geraldo Spinelli Ribeiro and published by . This book was released on 1994 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis of Non-Newtonian Behavior of Crude Oil

Author : Amirabbas Mohammadi
Publisher :
ISBN 13 :
Total Pages : 129 pages
Book Rating : 4.:/5 (122 download)

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Book Synopsis Analysis of Non-Newtonian Behavior of Crude Oil by : Amirabbas Mohammadi

Download or read book Analysis of Non-Newtonian Behavior of Crude Oil written by Amirabbas Mohammadi and published by . This book was released on 2020 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Petroleum Abstracts. Literature and Patents

Author :
Publisher :
ISBN 13 :
Total Pages : 1416 pages
Book Rating : 4.F/5 ( download)

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Download or read book Petroleum Abstracts. Literature and Patents written by and published by . This book was released on 1990 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Processing of Heavy Crude Oils

Author : Ramasamy Marappa Gounder
Publisher :
ISBN 13 : 1839684097
Total Pages : 274 pages
Book Rating : 4.8/5 (396 download)

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Download or read book Processing of Heavy Crude Oils written by Ramasamy Marappa Gounder and published by . This book was released on 2019-12-18 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Rheological Complexity of Waxy Crude Oils

Author : Christopher J. Dimitriou
Publisher :
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4.:/5 (86 download)

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Download or read book The Rheological Complexity of Waxy Crude Oils written by Christopher J. Dimitriou and published by . This book was released on 2013 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precipitate-containing crude oils are of increasing economic importance, due to diminishing oil reserves and the increased need to extract hydrate and wax-containing crude oil from ultra deep-water resources. Despite this need, the rheological behavior of these types of crude oil is often poorly understood. In this thesis, we investigate some of the underlying complexities associated with the rheology of waxy crude oils. These complex phenomena are often difficult to both quantify experimentally and capture with existing constitutive models. The contribution of this thesis is therefore to develop a detailed understanding of three of these particular phenomena, through the development and use of several new experimental and theoretical tools. A better understanding of waxy crude oil rheology is critical for developing flow assurance strategies, which can in turn ensure continuous production of precipitate-containing crude oils under adverse conditions. The three phenomena studied are, first: shear heterogeneities, i.e. the manifestation of wall slip, shear banding or other shear-localization events under imposed deformations that are assumed to be homogenous. For these purposes, flow visualization techniques capable of "Rheo-PIV" measurements are developed to detect these heterogeneities. Second: elasto-viscoplasticity, or the presence of an elastic response and a yield-like behavior in a non-Newtonian fluid. Constitutive modeling of this type of behavior is difficult to achieve using standard linear viscoelastic techniques, where the viscoelastic response is decomposed into a finite number of linear elements with a spectrum of relaxation times. For these reasons, additional concepts are adopted from plasticity models in order to describe this behavior. Finally: thixotropy, which refers to the ability of a fluid to continuously evolve, or age at rest and shear rejuvenate under a constant applied shear rate. A rigorous set of experimental tests is constructed which allow for the appropriate constitutive model parameters to be determined for a thixotropic fluid. Through quantitative study of these phenomena, we reach several conclusions about how to characterize and model the rheology of a precipitate-containing crude oil. First, measurements of shear heterogeneities are important in these fluids, so that rheological characterization may proceed with a knowledge of when these may arise and introduce artifacts into data. Second, new nonlinear rheometric techniques are necessary to develop quantitative data sets that describe the inherently nonlinear rheology of these fluids. The specific technique developed in this work is termed stress-controlled large amplitude oscillatory shear, or LAOStress. Finally, we show that the constitutive behavior of these materials is best prescribed using a framework which utilizes yielding and hardening mechanisms from plasticity theory. The resulting constitutive model for this nonlinear elasto-viscoplastic and thixotropic class of materials is expressed in a closed form that can be used in existing flow assurance simulation tools. The most relevant applications for this work are in the flow assurance challenges associated with crude oil production. Consequently, a large portion of the experimental work is carried out on a model waxy crude oil, containing a total wax content ranging from 5 to 10% by weight. However the phenomena studied here occur ubiquitously in a number of complex fluids. For this reason, the same rheological complexities are studied in the context of several other fluids, including a swollen microgel paste (Carbopol) and a shear-banding wormlike micellar solution.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.F/5 ( download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992-06 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rheology of Heavy Oils

Author : Manaf Rizvan Manafov
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Rheology of Heavy Oils by : Manaf Rizvan Manafov

Download or read book Rheology of Heavy Oils written by Manaf Rizvan Manafov and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problems of heavy oil rheology, accompanied by physical phenomena of the formation and destruction of coagulation disordered structures and aggregates as a result of the hydrodynamic interaction of particles (asphaltenes, paraffins, resins, and solid-phase particles) contained in the oil, which significantly affect its properties and flow, are considered and analyzed. Rheological models of viscous-plastic heavy oils are considered and developed, consistent with a variety of experimental data. New rheological models for viscous-plastic heavy oils are proposed, which make it possible to generalize many existing models. It is noted that the variety of rheological models for heavy oils is determined by the conditions for the formation of disordered structures in the bulk of the oil flow. For heavy oils, a nonlinear equation for filtration in porous media is proposed, depending on the shear stress, pressure gradient, effective viscosity of the oil, and a number of other parameters. An analytical solution to this equation is proposed, which is consistent with the experimental data. Models for the settling rate and drag coefficient of particles in heavy oils are proposed. Applied problems of rheology aimed at improving the rheological properties of heavy oil during their processing as a result of creating a recirculation scheme at an operating oil refining unit are considered.

Advanced Petroleum Reservoir Simulation

Author : M. R. Islam
Publisher : John Wiley & Sons
ISBN 13 : 1119038782
Total Pages : 592 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Advanced Petroleum Reservoir Simulation by : M. R. Islam

Download or read book Advanced Petroleum Reservoir Simulation written by M. R. Islam and published by John Wiley & Sons. This book was released on 2016-07-20 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of the original volume adds significant new innovations for revolutionizing the processes and methods used in petroleum reservoir simulations. With the advent of shale drilling, hydraulic fracturing, and underbalanced drilling has come a virtual renaissance of scientific methodologies in the oil and gas industry. New ways of thinking are being pioneered, and Dr. Islam and his team have, for years now, been at the forefront of these important changes. This book clarifies the underlying mathematics and physics behind reservoir simulation and makes it easy to have a range of simulation results along with their respective probability. This makes the risk analysis based on knowledge rather than guess work. The book offers by far the strongest tool for engineers and managers to back up reservoir simulation predictions with real science. The book adds transparency and ease to the process of reservoir simulation in way never witnessed before. Finally, No other book provides readers complete access to the 3D, 3-phase reservoir simulation software that is available with this text. A must-have for any reservoir engineer or petroleum engineer working upstream, whether in exploration, drilling, or production, this text is also a valuable textbook for advanced students and graduate students in petroleum or chemical engineering departments.

Heavy Oils

Author : Satinder Chopra
Publisher : SEG Books
ISBN 13 : 1560802227
Total Pages : 339 pages
Book Rating : 4.5/5 (68 download)

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Book Synopsis Heavy Oils by : Satinder Chopra

Download or read book Heavy Oils written by Satinder Chopra and published by SEG Books. This book was released on 2010 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir characterization requires integration of engineering, geology, and geophysics, with rock physics supplying a key link. In this volume, geophysical methods, especially time-lapse 3D seismic, are emphasized, and a range of enhanced oil-recovery methods (EOR) are discussed, showing the need to accurately describe a reservoir before and after production.

Impact of Pressure and Added Diluents on Rheological Properties of Heavy Oils

Author : Sepideh Mortazavi Manesh
Publisher :
ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (959 download)

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Book Synopsis Impact of Pressure and Added Diluents on Rheological Properties of Heavy Oils by : Sepideh Mortazavi Manesh

Download or read book Impact of Pressure and Added Diluents on Rheological Properties of Heavy Oils written by Sepideh Mortazavi Manesh and published by . This book was released on 2015 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rheological properties of heavy oil and bitumen depend on factors such as temperature, pressure, diluent type and diluent composition, as well as sample shear and thermal histories and shear conditions during measurements. Each of these factors can affect the value of apparent viscosity significantly. Uncertainties in the available literature data arise when one or more of these factors have not been considered and have not been reported. Heavy oil and bitumen exhibit non-Newtonian rheological behaviors at lower temperatures. Methods for detecting and quantifying non-Newtonian behaviors are developed, presented and explored in this work using a well-characterized heavy crude oil. The methods and results presented for Maya crude oil provide a reliable database for rheological model development and evaluation, and a template for assessing the rheological behavior of other heavy crude oils. The thixotropic behavior of Maya crude oil was explored systematically using a stress-controlled rheometer. Thixotropy affects the efficiency and length scale of mixing during blending operations, and flow behaviors in pipes and pipelines following flow disruption where it affects the pressure required to reinitiate flow. Maya crude oil is shown to be a shear thinning fluid below 313 K. The thixotropic behaviors are explored using transient stress techniques (hysteresis loops, step-wise change in shear rate, start-up experiments). The magnitude of the thixotropy effect is larger at lower temperatures. Relationships are identified between rest times and other thixotropic parameters such as hysteresis loop area and stress decay in start-up experiments. Stress growth, which occurs as a result of a step-down in shear rate, is shown to correlate with temperature. The interrelation between rheological behavior of Maya crude oil and its phase behavior is discussed. The effect of pressure on the non-Newtonian rheological properties of Maya crude oil is also investigated over broad ranges of temperature from (258 to 333) K and at pressures up to 150 bar. At fixed temperature, the magnitude of the non-Newtonian behaviors of Maya crude oil appears to increase with increasing the pressure and shear thinning is shown to persist to higher pressures below 313 K. Boundaries of the non-Newtonian region with respect to temperature, pressure and viscosity are identified and discussed. The thixotropic behavior of Maya crude oil is also shown to persist at higher pressure and the recovery of the moduli at rest appears to be faster at elevated pressures than at atmospheric pressure. Understanding the rheological properties of mixtures of heavy oil or bitumen and diluents, specifically at low temperatures, is key in designing different processes employed in production or transportation of these resources reliably and efficiently. The effect of diluents (n-heptane, toluene and toluene + butanone (50/50 vol. %)) on the non-Newtonian behavior of Maya crude oil including shear thinning and thixotropy at temperatures from (258 to 333) K are discussed. Toluene + butanone (50/50 vol.%) addition to Maya crude oil induces the greatest reduction in shear thinning behavior irrespective of temperature. Thixotropic properties of mixtures of Maya crude oil and diluent were studied through start-up experiments. It was shown that toluene + butanone (50/50 vol.%) is the best diluent in moderating the thixotropic effect, while n-heptane showed the most pronounced thixotropic effect. It was shown that toluene + butanone (50/50 vol. %) is more promising in decreasing oil viscosity in comparison to two other diluents tested. Less of this diluent is required to decrease the viscosity to a certain value, which confirms its potential application to be used in the industry as a diluent.

Wax Deposition

Author : Zhenyu Huang
Publisher : CRC Press
ISBN 13 : 1466567678
Total Pages : 182 pages
Book Rating : 4.4/5 (665 download)

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Download or read book Wax Deposition written by Zhenyu Huang and published by CRC Press. This book was released on 2016-03-09 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wax Deposition: Experimental Characterizations, Theoretical Modeling, and Field Practices covers the entire spectrum of knowledge on wax deposition. The book delivers a detailed description of the thermodynamic and transport theories for wax deposition modeling as well as a comprehensive review of laboratory testing for the establishment of appropr