A reduced‐order model for chemical species transport in a tube with a constant wall concentration

Dejam, Morteza; Chen, Zhangxin

doi:10.1002/cjce.22863

Cited by 27 publications

(7 citation statements)

References 23 publications

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“…where m a � 1/(G × c ti ) and b a,pss � (μ × z) i /(2 × J × p i ). Equation (33) in water influx reservoirs is consistent with the one in dry gas reservoirs. erefore, the model proposed above can be extended to water influx reservoirs.…”

Section: Blasingame Production Decline Analysis Eorysupporting

confidence: 64%

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Production Decline Behavior Analysis of a Vertical Well with a Natural Water Influx/Waterflood

Wei

Ren

Duan

et al. 2019

Mathematical Problems in Engineering

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The production decline type curves are considered as a robust technique to interpret the production data and obtain the flow parameters, the original gas in place, etc. However, most of the previous models have focused on the primary depletion with a closed boundary, rather than on the secondary depletion with a water influx/waterflood. Therefore, in this study, a transient flow model considering the water influx/waterflood is developed. Subsequently, the functions of the production decline type curves for a vertical well with a water influx/waterflood are derived based on the material balance equation. In other words, the theory of Blasingame production decline analysis is extended to the water influx/waterflood reservoir. Further advanced Blasingame production decline type curves for a vertical well in water influx/waterflood reservoirs are generated. Compared with Blasingame type curves without a water influx/waterflood, the behavior of the ones presented in this study is quite different at the boundary. Thereafter, the effects of the relevant parameters, including the dimensionless maximum water influx, the dimensionless beginning time of the water influx, and the dimensionless external boundary radius, are studied on type curves. Finally, Blasingame type curves for a vertical well in water influx/waterflood reservoirs are verified through a field case study. This work provides very meaningful references for reservoir engineers working on the evaluation of the water influx and the estimation of the beginning time of the water influx by matching the developed type curves with the actual field data.

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Section: Blasingame Production Decline Analysis Eorysupporting

confidence: 64%

“…According to the above production decline analysis theory, the Blasingame type curves can be obtained by using one of the numerical Laplace inversion methods, including Stehfest, Zakian, Fourier series, and Schapery methods [31][32][33]. Here, the Stehfest method is applied [34].…”

Section: Model Validation and Comparisonmentioning

confidence: 99%

Production Decline Behavior Analysis of a Vertical Well with a Natural Water Influx/Waterflood

Wei

Ren

Duan

et al. 2019

Mathematical Problems in Engineering

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“…One major challenge often encountered during the production and transportation of crude oil in petroleum industries is the formation of complex and extremely stable emulsions with saline water [1][2][3][4]. These emulsions are droplets of water or brine dispersed in a continuous phase of crude oil: hence, they are known as water-in-oil (W/O) emulsions [5].…”

Section: Introductionmentioning

confidence: 99%

An Overview of Recent Advances in State-of-the-Art Techniques in the Demulsification of Crude Oil Emulsions

et al. 2019

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The processing of crude oil often requires the extraction of a large amount of water. Frequently, crude oil is mixed with water to form water-in-crude oil emulsions as the result of factors such as high shear at the production wellhead and surface-active substances that are naturally present in crude oil. These emulsions are undesirable and require demulsification to remove the dispersed water and associated inorganic salts in order to meet production and transportation specifications. Additionally, the demulsification of these crude oil emulsions mitigates corrosion and catalyst poisoning and invariably maximizes the overall profitability of crude oil production. Recently, there has been growing research interest in developing workable solutions to the difficulties associated with transporting and refining crude oil emulsions and the restrictions on produced water discharge. Therefore, this paper reviews the recent research efforts on state-of-the-art demulsification techniques. First, an overview of crude oil emulsion types, formation, and stability is presented. Then, the parameters and mechanisms of emulsification formation and different demulsification techniques are extensively examined. It is worth noting that the efficiency of each of these techniques is dependent on the operating parameters and their interplay. Moreover, a more effective demulsification process could be attained by leveraging synergistic effects by combining one or more of these techniques. Finally, this literature review then culminates with propositions for future research. Therefore, the findings of this study can help for a better understanding of the formation and mechanisms of the various demulsification methods of crude oil to work on the development of green demulsifiers by different sources.

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“…The EOF is extensively employed for mass transfer and sample separation in lab-on-a-chip technologies, capillary zone electrophoresis, and generally in conduits. Compared to the mass transfer in pressure-driven flow (PDF) [1][2][3][4], EOF under the condition of a thin EDL is associated with generating weaker shear dispersion (SD) of mass species, resulting in a more desirable separation. This can be explained as follows.…”

Section: Introductionmentioning

confidence: 99%

Control of Shear Dispersion by the Permeable Porous Wall of a Capillary Tube

Kou

Dejam

2020

Chem Eng & Technol

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The transfer of a neutral nonreacting mass species was studied in a capillary tube with a permeable porous wall, under the effect of combined pressure-driven and electro-osmotic flows or simply combined flows (CF). An exact expression for the shear dispersion coefficient in a tube under the influence of CF is derived, which remains constant when l D , inversely propotional to the permeability of the porous medium, is smaller than 1 or larger than 100 for a constant Péclet number. In addition, the equivalent one-dimensional governing equations for the concentrations of species in the tube and the permeable porous medium under the influence of CF are obtained. The proposed model is compared and verified with several existing models in the literature.

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A reduced‐order model for chemical species transport in a tube with a constant wall concentration

Cited by 27 publications

References 23 publications

Production Decline Behavior Analysis of a Vertical Well with a Natural Water Influx/Waterflood

Production Decline Behavior Analysis of a Vertical Well with a Natural Water Influx/Waterflood

An Overview of Recent Advances in State-of-the-Art Techniques in the Demulsification of Crude Oil Emulsions

Control of Shear Dispersion by the Permeable Porous Wall of a Capillary Tube

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