A numerical study for transport phenomena of nanoscale gas flow in porous media

2012 ◽  
Author(s):  
Tomoya Oshima ◽  
Shigeru Yonemura ◽  
Takashi Tokumasu
Keyword(s):  
Porous Media ◽  
Gas Flow ◽  
Numerical Study ◽  
Transport Phenomena ◽  
Flow In Porous Media

Numerical study of the effect of inertia terms in the equation of motion on gas flow in porous media

1985 ◽  
Vol 20 (1) ◽  
pp. 161-164
Author(s):  
Yu. N. Gordeev ◽  
V. M. Kolobashkin ◽  
N. A. Kudryashov
Keyword(s):  
Porous Media ◽  
Gas Flow ◽  
Numerical Study ◽  
Equation Of Motion ◽  
Flow In Porous Media

J054022 A Numerical Study for Nanoscale Gas Flow in Porous Media

2011 ◽  
Vol 2011 (0) ◽  
pp. _J054022-1-_J054022-5
Author(s):  
Ko TOMARIKAWA ◽  
Tomoya OSHIMA ◽  
Shigeru YONEMURA ◽  
Takashi TOKUMASU
Keyword(s):  
Porous Media ◽  
Gas Flow ◽  
Numerical Study ◽  
Flow In Porous Media

Investigation of Multiphase Flow in Porous Media Around Perforation Tunnel Near Wellbore Region, Experimental and Numerical Study

2021 ◽  
Author(s):  
Abadelhalim Elsanoose ◽  
Ekhwaiter Abobaker ◽  
Faisal Khan ◽  
Aziz Rahman ◽  
Amer Aborig
Keyword(s):  
Porous Media ◽  
Multiphase Flow ◽  
Flow Rate ◽  
Gas Flow ◽  
Numerical Study ◽  
Flow In Porous Media ◽  
Dominant Factor ◽  
Porous System ◽  
Gas Flow Rate ◽  
Pressure Buildup

Abstract Understanding the behavior of the multiphase flow in the porous media near the wellbore region is essential for increasing wells’ productivity and oil recovery. In this paper, an experimental and numerical study of multiphase flow in porous media near a perforation tunnel is presented. The effect of properties on the flow, such as porosity and permeability, are crucial for increasing oil and gas production. Two-phase flow through a cylindrical porous media with a perforation tunnel samples experimentally and numerically tested. Five sandstone samples were created at Memorial university labs, the sample dimensions are 30.48 cm high, 15.54 cm diameter, and a perforation tunnel has a 25.54 cm depth and 2.54cm diameter. The air and water injected into the sample radially at different flow rates, the water flow rate ranged from 1 to 3 LPM, and the air 3 to 9 LPM. The simulation carried out using ANSYS-Fluent 18.1 commercial software simulates the Volume Of Fluid method VOF coupled with the different turbulent models used to simulate the flow. The results showed that the porous media’s pressure buildup is greatly affected by the gas flow rate and its permeability. The wellbore pressure and porosity have more negligible effect on the pressure buildup profile in the porous media. The dominant factor for the breakthrough of a fluid in a core sample is the gas flow rate. Incorporating the gas flow in a porous system will reduce hydrostatic pressure loss, and less time is required to activate the breakthrough time.

Foams as Blocking Agents in Porous Media

1970 ◽  
Vol 10 (01) ◽  
pp. 51-55 ◽  
Author(s):  
Robert A. Albrecht ◽  
Sullivan S. Marsden
Keyword(s):  
Porous Medium ◽  
Porous Media ◽  
Natural Gas ◽  
Gas Flow ◽  
Gas Storage ◽  
Flow In Porous Media ◽  
Porous Rocks ◽  
Experimental Conditions ◽  
Storage Reservoirs

Abstract Although foam usually will flow in porous media, under certain controllable conditions it can also be used to block the flow of gas, both in unconsolidated sand packs and in sandstones. After steady gas or foam flow has been established at a certain injection pressure pi, the pressure is decreased until flow pressure pi, the pressure is decreased until flow ceases at a certain blocking pressure pb. When flow is then reestablished at a second, higher pi, blocking can again occur at another pb that will usually be greater than the first pi. The relationship between pi and Pb depends on the type of porous medium and the foamer solution saturation in the porous medium. A process is suggested whereby porous medium. A process is suggested whereby this phenomenon might be used to impede or block leakage in natural gas storage projects. Introduction The practice of storing natural gas in underground porous rocks has developed rapidly, and it now is porous rocks has developed rapidly, and it now is the major way of meeting peak demands in urban areas of the U. S. Many of these storage projects have been plagued with gas leakage problems that have, in some cases, presented safety hazards and resulted in sizeable economic losses. Usually these leaks are due to such natural factors as faults and fractures, or to such engineering factors as poor cement jobs and wells that were improperly abandoned. For the latter, various remedies such as spot cementing have been tried but not always with great success. In recent years several research groups have been studying the flow properties of aqueous foams and their application to various petroleum engineering problems. Most of this work has been done under problems. Most of this work has been done under experimental conditions such that the foam would flow in either tubes or porous media. However, under some extreme or unusual experimental conditions, flow in porous media becomes very difficult or even impossible. This factor also has suggested m us as well as to others that foam can be used as a gas flow impeder or as a sealant for leaks in gas storage reservoirs. In such a process, the natural ability of porous media to process, the natural ability of porous media to generate foam would be utilized by injecting a slug of foamer solution and following this with gas to form the foam in situ. This paper presents preliminary results of a sandy on the blockage of gas flow by foam in porous media. It also describes how this approach might be applied to a field process for sealing leaks in natural gas storage reservoirs. Throughout this report, we use the term "foam" to describe any dispersed gas-liquid system in which the liquid is the continuous phase, and the gas is the discontinuous phase. APPARATUS AND PROCEDURE A schematic drawing of the apparatus is shown in Fig. 1. At least 50 PV of filtered, deaerated foamer solution were forced through the porous medium to achieve liquid saturation greater than 80 percent. Afterwards air at controlled pressures was passed into the porous medium in order to generate foam in situ. Table 1 shows the properties and dimensions of the several porous media that were used. The beach sands were washed, graded and packed into a vibrating lucite tube containing a constant liquid level to avoid Stoke's law segregation over most of the porous medium. JPT P. 51

DIDACTIC EXPERIMENT IN FLUID FLOW IN POROUS MEDIA: A PROPOSAL FOR THE PRACTICAL EDUCATION OF TRANSPORT PHENOMENA

2019 ◽  
Vol 38 (1) ◽  
Author(s):  
Larissa de Souza Noel Simas Barbosa ◽  
Patrícia Aparecida Santiago ◽  
Paulo Seleghim Junior
Keyword(s):  
Porous Media ◽  
Fluid Flow ◽  
Transport Phenomena ◽  
Flow In Porous Media ◽  
Practical Education

scholarly journals Evaluation of 3D printed microfluidic networks to study fluid flow in rocks

2021 ◽  
Vol 76 ◽  
pp. 50
Author(s):  
Seyed Mahdi Mousavi ◽  
Saeid Sadeghnejad ◽  
Mehdi Ostadhassan
Keyword(s):  
Porous Media ◽  
Fluid Flow ◽  
Transport Phenomena ◽  
Similarity Index ◽  
Flow In Porous Media ◽  
Pore Scale ◽  
Tracer Injection ◽  
Printing Technology ◽  
Digital Light Processing ◽  
3D Printed

Visualizing fluid flow in porous media can provide a better understanding of transport phenomena at the pore scale. In this regard, transparent micromodels are suitable tools to investigate fluid flow in porous media. However, using glass as the primary material makes them inappropriate for predicting the natural behavior of rocks. Moreover, constructing these micromodels is time-consuming via conventional methods. Thus, an alternative approach can be to employ 3D printing technology to fabricate representative porous media. This study investigates fluid flow processes through a transparent microfluidic device based on a complex porous geometry (natural rock) using digital-light processing printing technology. Unlike previous studies, this one has focused on manufacturing repeatability. This micromodel, like a custom-built transparent cell, is capable of modeling single and multiphase transport phenomena. First, the tomographic data of a carbonate rock sample is segmented and 3D printed by a digital-light processing printer. Two miscible and immiscible tracer injection experiments are performed on the printed microfluidic media, while the experiments are verified with the same boundary conditions using a CFD simulator. The comparison of the results is based on Structural Similarity Index Measure (SSIM), where in both miscible and immiscible experiments, more than 80% SSIM is achieved. This confirms the reliability of printing methodology for manufacturing reusable microfluidic models as a promising and reliable tool for visual investigation of fluid flow in porous media. Ultimately, this study presents a novel comprehensive framework for manufacturing 2.5D realistic microfluidic devices (micromodels) from pore-scale rock images that are validated through CFD simulations.

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