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Author: R.W. Zimmerman Publisher: Elsevier ISBN: 0080868878 Category : Technology & Engineering Languages : en Pages : 183
Book Description
This book is a comprehensive treatment of the elastic volumetric response of sandstones to variations in stress. The theory and data presented apply to the deformations that occur, for example, due to withdrawal of fluid from a reservoir, or due to the redistribution of stresses caused by the drilling of a borehole. Although the emphasis is on reservoir-type sandstones, results and methods discussed are also applicable to other porous rocks.Part One concerns the effect of stress on deformation and discusses porous rock compressibility coefficients. Elasticity theory is used to derive relationships between the porous rock compressibility coefficients, the porosity, and the mineral grain compressibility. Theoretical bounds on the compressibility coefficients are derived. The concept of effective stress coefficients is examined, as is the integrated form of the stress-strain relationships. Undrained compression and induced pore pressures are treated within the same general framework. Part One is concluded with a brief, elementary introduction to Biot's theory of poroelasticity. All the results in Part One are illustrated and verified with extensive references to published compressibility data.Part Two deals with the relationship between pore structure and compressibility, and presents methods that permit quantitative prediction of the compressibility coefficients. Two- and three-dimensional models of tubular pores, spheroidal pores, and crack-like "grain boundary" voids are analyzed. A critical review is made of various methods that have been proposed to relate the effective elastic moduli (bulk and shear) of a porous material to its pore structure. Methods for extracting pore aspect ratio distributions from stress-strain data or from acoustic measurements are presented, along with applications to actual sandstone data.Part Three is a brief summary of experimental techniques that are used to measure porous rock compressibilities in the laboratory.The information contained in this volume is of interest to petroleum engineers, specifically those involved with reservoir modeling, petroleum geologists, geotechnical engineers, hydrologists and geophysicists.
Author: R.W. Zimmerman Publisher: Elsevier ISBN: 0080868878 Category : Technology & Engineering Languages : en Pages : 183
Book Description
This book is a comprehensive treatment of the elastic volumetric response of sandstones to variations in stress. The theory and data presented apply to the deformations that occur, for example, due to withdrawal of fluid from a reservoir, or due to the redistribution of stresses caused by the drilling of a borehole. Although the emphasis is on reservoir-type sandstones, results and methods discussed are also applicable to other porous rocks.Part One concerns the effect of stress on deformation and discusses porous rock compressibility coefficients. Elasticity theory is used to derive relationships between the porous rock compressibility coefficients, the porosity, and the mineral grain compressibility. Theoretical bounds on the compressibility coefficients are derived. The concept of effective stress coefficients is examined, as is the integrated form of the stress-strain relationships. Undrained compression and induced pore pressures are treated within the same general framework. Part One is concluded with a brief, elementary introduction to Biot's theory of poroelasticity. All the results in Part One are illustrated and verified with extensive references to published compressibility data.Part Two deals with the relationship between pore structure and compressibility, and presents methods that permit quantitative prediction of the compressibility coefficients. Two- and three-dimensional models of tubular pores, spheroidal pores, and crack-like "grain boundary" voids are analyzed. A critical review is made of various methods that have been proposed to relate the effective elastic moduli (bulk and shear) of a porous material to its pore structure. Methods for extracting pore aspect ratio distributions from stress-strain data or from acoustic measurements are presented, along with applications to actual sandstone data.Part Three is a brief summary of experimental techniques that are used to measure porous rock compressibilities in the laboratory.The information contained in this volume is of interest to petroleum engineers, specifically those involved with reservoir modeling, petroleum geologists, geotechnical engineers, hydrologists and geophysicists.
Author: Ekwere J. Peters Publisher: Greenleaf Book Group ISBN: 1936909448 Category : Nature Languages : en Pages : 239
Book Description
A practical, fast-paced approach to teaching the concepts and problems common in petroleum engineering that will appeal to a wide range of disciplines Petrophysics is the study of rock properties and their interactions with fluids, including gases, liquid hydrocarbons, and aqueous solutions. This three-volume series from distinguished University of Texas professor Dr. Ekwere J. Peters provides a basic understanding of the physical properties of permeable geologic rocks and the interactions of the various fluids with their interstitial surfaces, with special focus on the transport properties of rocks for single-phase and multiphase flow. Based on Dr. Peters's graduate course that has been taught internationally in corporations and classrooms, the series covers core topics and includes full-color CT and NMR images, graphs, and figures to illustrate practical application of the material. Subjects addressed in volume 1 (chapters 1-4) include - Geological concepts - Porosity and water saturation - Absolute permeability - Heterogeneity and geostatistics Advanced Petrophysics features over 140 exercises designed to strengthen learning and extend concepts into practice. Additional information in the appendices covers dimensional analysis and a series of real-world projects that enable the student to apply the principles presented in the text to build a petrophysical model using well logs and core data from a major petroleum-producing province.
Author: Francois Henri Cornet Publisher: ISBN: Category : Rock mechanics Languages : en Pages : 576
Book Description
An investigation of the mechanical influence of interstitial fluids on the deformation process of saturated rocks has been conducted to determine the domain of validity of previously published theories. Equilibrium equations for fluid saturated materials in which the fluid is at rest or flows according to DARCY's law were derived. For this purpose, a new characterization of porosity has been proposed for analyzing porosity variation within a rock mass. This derivation indicates that the bulk material (solid plus fluid) can be represented by an equivalent homogeneous continuum for which the mass density and the stress tensor at any point depend upon average stresses and average densities of both the solid matrix and the saturating fluid as well as upon the surface and the volume porosity.
Author: Brian Evans Publisher: Academic Press ISBN: 008095989X Category : Business & Economics Languages : en Pages : 549
Book Description
This festschrift, compiled from the symposium held in honor of W.F. Brace, is a timely overview of fault mechanics and transport properties of rock. State-of-the-art research is presented by internationally recognized experts, who highlight developments in this contemporary area of study subsequent to Bill Brace's pioneering work.Key Features* The strength of brittle rocks* The effects of stress and stress-induced damage on physical properties of rock* Permeability and fluid flow in rocks* The strength of rocks and tectonic processes
Author: Gary Mavko Publisher: Cambridge University Press ISBN: 1108420265 Category : Business & Economics Languages : en Pages : 741
Book Description
Brings together widely scattered theoretical and laboratory rock physics relations critical for modelling and interpretation of geophysical data.
Author: Reşat Ulusay Publisher: CRC Press ISBN: 1315388499 Category : Technology & Engineering Languages : en Pages : 1371
Book Description
Rock Mechanics and Rock Engineering: From the Past to the Future contains the contributions presented at EUROCK2016, the 2016 International Symposium of the International Society for Rock Mechanics (ISRM 2016, Ürgüp, Cappadocia Region, Turkey, 29-31 August 2016). The contributions cover almost all aspects of rock mechanics and rock engineering from theories to engineering practices, emphasizing the future direction of rock engineering technologies. The 204 accepted papers and eight keynote papers, are grouped into several main sections: - Fundamental rock mechanics - Rock properties and experimental rock mechanics - Analytical and numerical methods in rock engineering - Stability of slopes in civil and mining engineering - Design methodologies and analysis - Rock dynamics, rock mechanics and rock engineering at historical sites and monuments - Underground excavations in civil and mining engineering - Coupled processes in rock mass for underground storage and waste disposal - Rock mass characterization - Petroleum geomechanics - Carbon dioxide sequestration - Instrumentation-monitoring in rock engineering and back analysis - Risk management, and - the 2016 Rocha Medal Lecture and the 2016 Franklin Lecture Rock Mechanics and Rock Engineering: From the Past to the Future will be of interest to researchers and professionals involved in the various branches of rock mechanics and rock engineering. EUROCK 2016, organized by the Turkish National Society for Rock Mechanics, is a continuation of the successful series of ISRM symposia in Europe, which began in 1992 in Chester, UK.
Author: R. Worden Publisher: John Wiley & Sons ISBN: 1444304240 Category : Science Languages : en Pages : 352
Book Description
Quartz is the major porosity-reducing cement in many sandstonesequences. Therefore, Quartz cements represent a key source ofpetrographic and geochemical information about diagenetic history.They are also the major determinant of sandstone reservoirquality. While the ultimate goal of research in this area is to makerobust predictions about the amount and distribution of quartzcements in a wide variety of depositional and burial settings,there are nevertheless large areas of the subject that are poorlyunderstood and remain the subject of controversy. The aim of this Volume, which is based partly on paperssubmitted to a 1996 workshop in Belfast, and partly on invitedcontributions, is to bring together some of the main strands ofresearch into quartz cements and provide a focus for debate anddirection for future research. This book will be welcomed by sedimentologists, petrographersand geochemists involved in sandstone digenesis, as well as bypetroleum geologists seeking a deeper understanding of the factorsinfluencing reservoir porosity and permeability. Contributors from 11 countries and 4 continents. Represents the benchmark in quartz cement research. If you are a member of the International Association ofSedimentologists, for purchasing details, please see:http://www.iasnet.org/publications/details.asp?code=SP29
Author: Frederick L. Paillet Publisher: CRC Press ISBN: 1000943305 Category : Science Languages : en Pages : 282
Book Description
Introducing the first, self-contained reference on acoustic waveform logging Acoustic measurements in boreholes were first made as a specialized logging technique in geological exploration, but recent advances have greatly expanded the potential applications of this technique. Acoustic Waves in Boreholes provides a thorough review of the theory and interpretation techniques needed to realize these applications, emphasizing the role of guided modes and critically refracted waves in determining the characteristics of recorded waveforms. Topics covered in this comprehensive volume include the seismic properties of rocks; propagation of axisymmetric waves along fluid-filled boreholes in isotropic rocks; and symmetric and nonsymmetric sources in isotropic, transversely isotropic, and porous, permeable formations in open and cased boreholes. Each chapter includes the theory of synthetic microseismogram computation, interpretation and data inversion techniques illustrated using computed seismograms, and case histories using experimental data. Appendices providing the mathematical formulation needed to compute microseismograms, with a single consistent notation used throughout, are also included in appropriate chapters. The wide range of geomechanical properties covered in this book will interest exploration geophysicists, reservoir engineers, civil engineers, geologists, and soil scientists.
Author: R.W. Zimmerman
Author: R.W. Zimmerman
Author: Ekwere J. Peters
Author: 
Author: Francois Henri Cornet
Author: Brian Evans
Author: Gary Mavko
Author: Reşat Ulusay
Author: Thiruppudaimarudhur N. Narasimhan
Author: R. Worden
Author: Frederick L. Paillet