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Pore Scale Study Of The Impact Of Fracture And Wettability On Two Phase Flow Properties Of Rock
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Book Synopsis Pore-Scale Study of the Impact of Fracture and Wettability on Two-Phase Flow Properties of Rock by :
Download or read book Pore-Scale Study of the Impact of Fracture and Wettability on Two-Phase Flow Properties of Rock written by and published by . This book was released on 2012 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fractures and wettability are among other factors that can strongly affect the twophase flow properties of porous media. Maximal-inscribed spheres (MIS) and finite-difference flow simulations on computer-generated structures mimicking micro-CT images of fractured rock suggest the character of the capillary pressure and relative permeability curves modification by natural or induced fracture and wettability alteration.
Book Synopsis Fluid Flow in Fractured Rocks by : Robert W. Zimmerman
Download or read book Fluid Flow in Fractured Rocks written by Robert W. Zimmerman and published by John Wiley & Sons. This book was released on 2023-12-19 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: FLUID FLOW IN FRACTURED ROCKS "The definitive treatise on the subject for many years to come" (Prof. Ruben Juanes, MIT) Authoritative textbook that provides a comprehensive and up-to-date introduction to fluid flow in fractured rocks Fluid Flow in Fractured Rocks provides an authoritative introduction to the topic of fluid flow through single rock fractures and fractured rock masses. This book is intended for readers with interests in hydrogeology, hydrology, water resources, structural geology, reservoir engineering, underground waste disposal, or other fields that involve the flow of fluids through fractured rock masses. Classical and established models and data are presented and carefully explained, and recent computational methodologies and results are also covered. Each chapter includes numerous graphs, schematic diagrams and field photographs, an extensive reference list, and a set of problems, thus providing a comprehensive learning experience that is both mathematically rigorous and accessible. Written by two internationally recognized leaders in the field, Fluid Flow in Fractured Rocks includes information on: Nucleation and growth of fractures in rock, with a multiscale characterization of their geometric traits Effect of normal and shear stresses on the transmissivity of a rock fracture and mathematics of fluid flow through a single rock fracture Solute transport in rocks, with quantitative descriptions of advection, molecular diffusion, and dispersion Fluid Flow in Fractured Rocks is an essential resource for researchers and postgraduate students who are interested in the field of fluid flow through fractured rocks. The text is also highly suitable for professionals working in civil, environmental, and petroleum engineering.
Book Synopsis Flows in Porous Media and Fractured Rock by : Muhammad Sahimi
Download or read book Flows in Porous Media and Fractured Rock written by Muhammad Sahimi and published by Wiley-VCH. This book was released on 1995-02-22 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive discussion of porous media problems, experimental methods for characterizing porous structures, classical approaches and modern methods and a comparison of both, and fractured rock and porous media.
Book Synopsis Pore-scale Investigation of Wettability Effects on Two-phase Flow in Porous Media by : Harris Rabbani
Download or read book Pore-scale Investigation of Wettability Effects on Two-phase Flow in Porous Media written by Harris Rabbani and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow and Transport in Porous Media and Fractured Rock by : Muhammad Sahimi
Download or read book Flow and Transport in Porous Media and Fractured Rock written by Muhammad Sahimi and published by John Wiley & Sons. This book was released on 2011-05-09 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this standard reference of the field, theoretical and experimental approaches to flow, hydrodynamic dispersion, and miscible displacements in porous media and fractured rock are considered. Two different approaches are discussed and contrasted with each other. The first approach is based on the classical equations of flow and transport, called 'continuum models'. The second approach is based on modern methods of statistical physics of disordered media; that is, on 'discrete models', which have become increasingly popular over the past 15 years. The book is unique in its scope, since (1) there is currently no book that compares the two approaches, and covers all important aspects of porous media problems; and (2) includes discussion of fractured rocks, which so far has been treated as a separate subject. Portions of the book would be suitable for an advanced undergraduate course. The book will be ideal for graduate courses on the subject, and can be used by chemical, petroleum, civil, environmental engineers, and geologists, as well as physicists, applied physicist and allied scientists that deal with various porous media problems.
Book Synopsis Micro-scale Experimental Investigations of Multi-phase Flow Through Fractured Porous Media by : Maziar Arshadi
Download or read book Micro-scale Experimental Investigations of Multi-phase Flow Through Fractured Porous Media written by Maziar Arshadi and published by . This book was released on 2017 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of systematic micro-scale experimental investigations of multi-phase flow through fractured rock samples under a wide range of flow conditions. The results of the study have direct applications in fluid flow through fractures in conventional reservoirs and hydraulically-induced fractures in ultra-tight unconventional reservoirs. We generate high-resolution, three-dimensional maps of fluid distribution within a rough-walled fracture and its neighboring matrix using a miniature water-wet, fractured sandstone core sample. These maps along with steady-state pressure drop data are then used to shed light on the dominant flow mechanisms and preferential flow paths through the matrix and fracture domains as well as fluid transfer between them during numerous drainage and imbibition displacement cycles. Due to the topology of the fracture in the medium and the magnitude of the local capillary pressures that are established under varying flow conditions, different flow mechanisms govern the transport of the wetting phase through the fracture and matrix, i.e., fracture layer flow, fracture bulk flow, and advancement through matrix pores. The competition between these transport mechanisms is regulated by the medium as it identifies the flow path with minimum pressure drop from the inlet to the outlet of the hybrid matrix-fracture system. The resulting balance determines the magnitude of fluid transfer experienced by the neighboring matrix and ultimate recovery as a result. In the second category of the experiments, we probe two- and three-phase flow displacement processes in proppant-packed fractured shale samples under varying stress conditions. Three sets of experiments are performed to represent the fluid flow behavior through hydraulic fractures in shale oil, shale gas, and shale gas-condensate reservoirs, respectively. In each set of experiments, we study geomechanical deformation and consequent multi-phase flow factors that reduce effective hydrocarbon permeability that in turn results in early production loss in the above-mentioned unconventional reservoirs. We examine various types of proppants including regular sand, white sand, resin-coated sand, and ISP ceramic. Different packings of the proppants including multi-layer, uniform mono-layer, and non-uniform mono-layer, are also tested under severe closure stress conditions. For the first time, wettability alteration of proppant packs due to severe embedment and deposition of shale organic matter is reported at the pore scale. Significantly improved insight developed in this work can be used to design new proppants to effectively maintain hydraulic conductivity of the fractures for extended period of time.
Book Synopsis Multiphase Lattice Boltzmann Methods by : Haibo Huang
Download or read book Multiphase Lattice Boltzmann Methods written by Haibo Huang and published by John Wiley & Sons. This book was released on 2015-06-08 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory and Application of Multiphase Lattice Boltzmann Methods presents a comprehensive review of all popular multiphase Lattice Boltzmann Methods developed thus far and is aimed at researchers and practitioners within relevant Earth Science disciplines as well as Petroleum, Chemical, Mechanical and Geological Engineering. Clearly structured throughout, this book will be an invaluable reference on the current state of all popular multiphase Lattice Boltzmann Methods (LBMs). The advantages and disadvantages of each model are presented in an accessible manner to enable the reader to choose the model most suitable for the problems they are interested in. The book is targeted at graduate students and researchers who plan to investigate multiphase flows using LBMs. Throughout the text most of the popular multiphase LBMs are analyzed both theoretically and through numerical simulation. The authors present many of the mathematical derivations of the models in greater detail than is currently found in the existing literature. The approach to understanding and classifying the various models is principally based on simulation compared against analytical and observational results and discovery of undesirable terms in the derived macroscopic equations and sometimes their correction. A repository of FORTRAN codes for multiphase LBM models is also provided.
Book Synopsis Estimating Wettability of Rock Fracture Surfaces from Contact Angle and Roughness Measurements by : Christopher H. Gates
Download or read book Estimating Wettability of Rock Fracture Surfaces from Contact Angle and Roughness Measurements written by Christopher H. Gates and published by . This book was released on 2018 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimates of wettability are important for modeling multi-phase flow and transport in the subsurface. This study investigates the wettability of rock fracture surfaces through contact angle measurements and surface roughness characterization. Droplet diameter and advancing contact angle were determined at 0.5s intervals for ~90s on flat polished disks of Burlington Limestone, Crossville Sandstone, Mancos Shale, Sierra White Granite, Vermilion Bay Granite (2 types), and Westerly Granite using a Krüss DSA 30 Drop Shape Analyzer. The droplet diameter and advancing contact angle data sets were nonlinearly regressed against time using two different two-parameter models. The resulting parameter estimates were used to compute the apparent equilibrium contact angle, [theta]e̳, for each disk following droplet diameter stabilization. Estimates of [theta]e̳ ranged from 37.2° for Mancos Shale to 75.6° for Burlington Limestone. Analysis of variance indicated statistically significant differences in [theta]e̳ between the rock types at the 95% confidence level. Height maps for fractured surfaces of these rocks were made using a Phenom Pro X SEM and analyzed for Wenzel roughness factor and fractal dimension using multi-image variography. The Mancos Shale and Crossville Sandstone were found to be fractal, both having a mean fractal dimension of 2.16. The Wenzel roughness factor was found to increase with increasing length scale. Mean Wenzel roughness factors for the 200 to 600 [mu]m fields were found to have significant differences between rock types. Using the Wenzel roughness factor and contact angle results in the Wenzel model, four of the rock types were found to have a rough surface contact angle of 0°, indicating complete wettability; the Burlington Limestone, Mancos Shale, and Westerly Granite had contact angles greater than zero but less than their contact angles for flat polished surfaces. This is, to the best of our knowledge, the first time the Wenzel model has been used to quantify rough surface contact angles for rocks. The transient analysis employed in this study also permits a more meaningful estimate of the equilibrium contact angle for polished rock surfaces, rather than taking the initial value or averaging over time as is frequently done.
Book Synopsis Pore Space Deformation and Its Implications for Multiphase Flow Through Porous Media Under Various Wettability Conditions by : Rui Wang
Download or read book Pore Space Deformation and Its Implications for Multiphase Flow Through Porous Media Under Various Wettability Conditions written by Rui Wang and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pore space deformation significantly affects multiphase flow behavior in porous media. It alters the distribution of fluids at the pore scale which in turn leads to changes in the effective permeability, relative permeability, capillary pressure, etc. However, due to the lack of fundamental studies on the mechanisms correlating the pore-level fluid displacements with the pore space deformation, no compelling conclusions have been reached to account for the observed effects. To explore this correlation, a series of carefully characterized unsteady- and steady-state two-phase core-flooding experiments were performed on miniature sandpack samples under varying stress conditions while the pore space was being imaged using high-resolution x-ray microtomography techniques to acquire three-dimensional pore fluid configuration maps. In these studies, the deformation of the sandpack samples was characterized at both macro and micro scales. The impact of deformation on the frequency of various pore-scale fluid displacement mechanisms as well as fluid saturations and volumes during different flow processes (drainage and imbibition) were also investigated. Changes in the multiphase flow behavior, such as fluid velocity and pressure, were evaluated through direct simulations, which used a finite volume method to solve Navier-Stoke equations. Moreover, the variations in the in-situ capillary pressure caused by the pore space deformation were explored through interfacial curvature analysis. The relationship between relative permeabilities and effective stress was probed. Finally, in connection to the geological storage of carbon dioxide in deep saline aquifers, the impact of pore space deformation on residual trapping and dissolution of supercritical CO2 in brine saturated sandpacks was carefully examined through micro-scale flow experiments conducted under varying stress conditions. It was observed that in a water-wet porous medium, unsteady-state drainage can be both strengthened due to the higher fluid velocity and weakened by the increase in the threshold capillary pressure after the pore space contraction. By contrast, unsteady imbibition was affected solely by variations in the threshold capillary pressure and, consequently, was facilitated as the pore sizes reduced. During the steady-state core-flooding tests, additional drainage and imbibition displacements were triggered by the pore space expansion and contraction, respectively. Furthermore, it was found that wettability was one of the key properties that governed the impact of pore space deformation on the multiphase flow behavior in porous media. The wetting phase hydraulic conductivity was more sensitive to the pore space deformation than that of the non-wetting phase, because of their topologically different distributions in the pore space. Consequently, the relative permeability of the wetting phase decreased with the increase in the effective stress, while that of the non-wetting phase increased. However, this behavior changed as the wettability of the porous medium was altered to a weakly oil-wet state through a dynamic aging process. These studies provided novel insights into the fluid flow behavior in unconsolidated porous media under varying stress conditions, which are of ever-increasing importance to many subsurface applications, including hydrocarbon recovery, water management, CO2 sequestration, and hydrogen storage.
Book Synopsis Design and Construction of an Experiment for Two-phase Flow in Fractured Porou [i.e. Porous] Media by : Rafael E. G. Ayala
Download or read book Design and Construction of an Experiment for Two-phase Flow in Fractured Porou [i.e. Porous] Media written by Rafael E. G. Ayala and published by . This book was released on 1993 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Two-Phase Relative Permeability and Capillary Pressure OfRough-Walled Rock Fractures by :
Download or read book On Two-Phase Relative Permeability and Capillary Pressure OfRough-Walled Rock Fractures written by and published by . This book was released on 1989 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a conceptual and numerical model of multiphase flow in fractures. The void space of real rough-walled rock fractures is conceptualized as a two-dimensional heterogeneous porous medium, characterized by aperture as a function of position in the fracture plane. Portions of a fracture are occupied by wetting and nonwetting phase, respectively, according to local capillary pressure and accessibility criteria. Phase occupancy and permeability are derived by assuming a parallel-plate approximation for suitably small subregions in the fracture plane. For log-normal aperture distributions, a simple approximation to fracture capillary pressure is obtained in closed form; it is found to resemble the typical shape of Leverett's j-function. Wetting and non-wetting phase relative permeabilities are calculated by numerically simulating single phase flows separately in the wetted and non-wetted pore spaces. Illustrative examples indicate that relative permeabilities depend sensitively on the nature and range of spatial correlation between apertures. It is also observed that interference between fluid phases flowing in a fracture tends to be strong, with the sum of wetting and nonwetting phase relative permeabilities being considerably less than 1 at intermediate saturations.
Book Synopsis Flow in Porous Rocks by : Andrew W. Woods
Download or read book Flow in Porous Rocks written by Andrew W. Woods and published by Cambridge University Press. This book was released on 2015 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides simplified models explaining flows in heterogeneous rocks, their physics and energy production processes, for researchers, energy industry professionals and graduate students.
Book Synopsis Effects of deep fluids in hydrocarbon accumulations in sedimentary basins by : Chen Zhang
Download or read book Effects of deep fluids in hydrocarbon accumulations in sedimentary basins written by Chen Zhang and published by Frontiers Media SA. This book was released on 2023-03-13 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unconventional Reservoir Geomechanics by : Mark D. Zoback
Download or read book Unconventional Reservoir Geomechanics written by Mark D. Zoback and published by Cambridge University Press. This book was released on 2019-05-16 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the key geologic, geomechanical and engineering principles that govern the development of unconventional oil and gas reservoirs. Covering hydrocarbon-bearing formations, horizontal drilling, reservoir seismology and environmental impacts, this is an invaluable resource for geologists, geophysicists and reservoir engineers.
Book Synopsis Advancements of Phase Behavior and Fluid Transport in Petroleum Reservoirs by : Xiaohu Dong
Download or read book Advancements of Phase Behavior and Fluid Transport in Petroleum Reservoirs written by Xiaohu Dong and published by Frontiers Media SA. This book was released on 2022-06-30 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiphase Flow in Permeable Media by : Martin J. Blunt
Download or read book Multiphase Flow in Permeable Media written by Martin J. Blunt and published by Cambridge University Press. This book was released on 2017-02-16 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a fundamental description of multiphase fluid flow through porous rock, based on understanding movement at the pore, or microscopic, scale.
Book Synopsis Multiphase flow behavior in complex and critical environments by : Zhiyuan Wang
Download or read book Multiphase flow behavior in complex and critical environments written by Zhiyuan Wang and published by Frontiers Media SA. This book was released on 2022-12-29 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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