Download or read book Fracture Scaling and Diagenesis written by John Noel Hooker and published by . This book was released on 2012 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sets of natural opening-mode fractures in sedimentary rocks may show a variety of types of aperture-size distributions. A frequently documented size distribution type, in the literature and in data presented here, is the power law. The emergence of power-law distributions of fracture aperture and length sizes has been simulated using various quasi-mechanical fracture-growth routines but models based on linear-elastic fracture mechanics rarely produce such patterns. I collected a fracture-size dataset of unprecedented size and resolution using core and field methods and scanning electron microscope-based cathodoluminescence (SEM-CL) images. This dataset confirms the prevalence of power laws with a narrow range of power-law exponents among fractures that contain synkinematic cement. Organized microfractures are ubiquitous in sandstones. A fracture-growth simulation I devised reproduces observed size-scaling patterns by distributing fracture-opening increments among actively growing fractures. The simulated opening increments have a uniform size, which can be specified; uniform opening size is consistent with observations of narrow ranges of micron-scale widths of opening increments within crack-seal texture in natural fractures. Thus power-law size scaling of natural fractures can be explained using non-power-law (uniform-sized) opening increments, arranged using rules designed to simulate the effects of cement precipitation during fracture opening. A fundamental shortcoming of previous models of fracture-set evolution is the absence of a test because only natural fracture end states, not growth histories, could be measured. Using a technique to constrain fracture timing based on fluid inclusion microthermometry and thermal history modeling, I tested growth models by reconstructing the opening history of a set of natural fractures in the Triassic El Alamar Formation in northeast Mexico. The natural-fracture data show that, consistent with simulations, new microscopic fractures are continually introduced during natural fracture pattern evolution. As well, larger fractures represent sites of concentrated reactivation, although smaller fractures may be reactivated after long periods of quiescence. The pattern likely arises through feedback between fracture growth and the mechanically adhesive effects of contemporaneous fracture cement deposition. The narrow range in power-law exponents documented among fractures can help improve estimates of meter-scale large-fracture spacing where limited fracture samples are available.
Download or read book Multi scale Quantitative Diagenesis and Impacts on Heterogeneity of Carbonate Reservoir Rocks written by Fadi Henri Nader and published by Springer. This book was released on 2016-09-30 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is both a review and a look to the future, highlighting challenges for better predicting quantitatively the impact of diagenesis on reservoir rocks. Classical diagenesis studies make use of a wide range of descriptive analytical techniques to explain specific, relatively time-framed fluid-rock interaction processes, and deduce their impacts on reservoir rocks. Future operational workflows will consist of constructing a conceptual diagenesis model, quantifying the related diagenetic phases, and modelling the diagenetic processes. Innovative approaches are emerging for applied quantitative diagenesis, providing numerical data that can be used by reservoir engineers as entry (input) data, and for validating results of numerical simulations. Geometry-based, geostatistical and geochemical modelling do not necessarily mimic natural processes, they rather provide reasonable solutions to specific problems.
Download or read book Fracture Scaling written by Zdenek P. Bazant and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a collection of the papers given at the workshop on Fracture Scaling, held at the University of Maryland, USA, 10-12 June 1999, under the sponsorship of the Office of Naval Research, Arlington, VA, USA. These papers can be grouped under five major themes: Micromechanical analysis Size effects in fiber composites Scaling and heterogeneity Computational aspects and nonlocal or gradient models Size effects in concrete, ice and soils . This workshop is the result of a significant research effort, supported by the Office of Naval Research, into the problems of scaling of fracture in fiber composites, and generally into the problems of scaling in solid mechanics. These problems, which are of interest for many materials, especially all quasibrittle materials, share similar characteristics. Thus, progress in the understanding of scaling problems for one material may help progress for another material. This makes it clear that a dialogue between researchers in various fields of mechanics is highly desirable and should be promoted. In view of this, this volume should be of interest to researchers and advanced graduate students in materials science, solid mechanics and civil engineering.
Download or read book Quantitative Characterization and Engineering Application of Pores and Fractures of Different Scales in Unconventional Reservoirs Volume III written by Hu Li and published by Frontiers Media SA. This book was released on 2023-10-26 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Characterization and Engineering Application of Pores and Fractures of Different Scales in Unconventional Reservoirs written by Wenlong Ding and published by Frontiers Media SA. This book was released on 2023-02-16 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Characterization and Engineering Application of Pores and Fractures of Different Scales in Unconventional Reservoirs Volume II written by Wenlong Ding and published by Frontiers Media SA. This book was released on 2023-04-05 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Linking Diagenesis to Sequence Stratigraphy written by Sadoon Morad and published by John Wiley & Sons. This book was released on 2012-11-05 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequence stratigraphy is a powerful tool for the prediction of depositional porosity and permeability, but does not account for the impact of diagenesis on these reservoir parameters. Therefore, integrating diagenesis and sequence stratigraphy can provide a better way of predicting reservoir quality. This special publication consists of 19 papers (reviews and case studies) exploring different aspects of the integration of diagenesis and sequence stratigraphy in carbonate, siliciclastic, and mixed carbonate-siliciclastic successions from various geological settings. This book will be of interest to sedimentary petrologists aiming to understand the distribution of diagenesis in siliciclastic and carbonate successions, to sequence stratigraphers who can use diagenetic features to recognize and verify interpreted key stratigraphic surfaces, and to petroleum geologists who wish to develop more realistic conceptual models for the spatial and temporal distribution of reservoir quality. This book is part of the International Association of Sedimentologists (IAS) Special Publications. The Special Publications from the IAS are a set of thematic volumes edited by specialists on subjects of central interest to sedimentologists. Papers are reviewed and printed to the same high standards as those published in the journal Sedimentology and several of these volumes have become standard works of reference.
Download or read book Structure and Diagenesis in Upper Carboniferous Tight Gas Reservoirs in NW Germany written by Wuestefeld, Patrick and published by KIT Scientific Publishing. This book was released on 2018-03-02 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Upper Carboniferous sandstones are important tight gas reservoirs in Central Europe. This field-based study, conducted in a km-scale reservoir outcrop analog (Piesberg quarry, Lower Saxony Basin, NW Germany), focused on the diagenetic control on spatial reservoir quality distribution. Geothermometers were used to characterize a fault-related thermal anomaly. A prototype workflow based on terrestrial laser scanning is presented, which allowed for the automated detection and analysis of fractures.
Download or read book Advances in Carbonate Exploration and Reservoir Analysis written by Joanna Garland and published by Geological Society of London. This book was released on 2012 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbonate reservoirs contain an increasingly important percentage of the worlds hydrocarbon reserves. This volume presents key recent advances in carbonate exploration and reservoir analysis.
Download or read book Understanding the Micro to Macro Behaviour of Rock fluid Systems written by Richard Paul Shaw and published by Geological Society of London. This book was released on 2005 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding how fluids flow through though rocks is very important in a number of fields. Almost all of the world's oil and gas are produced from underground reservoirs. Knowledge of how they got where they are, what keeps them there and how they migrate through the rock is very important in the search for new resources, as well as for maximising the extraction of as much of the contained oil/gas as possible. Some contributors to this volume have been trying to understand real rocks in real situations and others have been working on computer models and laboratory simulations. Put together, these approaches have yielded very useful results, many of which are discussed in this volume.
Download or read book Alkalies Advances in Research and Application 2012 Edition written by and published by ScholarlyEditions. This book was released on 2012-12-26 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alkalies—Advances in Research and Application: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Alkalies. The editors have built Alkalies—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Alkalies in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Alkalies—Advances in Research and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Geology of Carbonate Reservoirs written by Wayne M. Ahr and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible resource, covering the fundamentals of carbonate reservoir engineering Includes discussions on how, where and why carbonate are formed, plus reviews of basic sedimentological and stratigraphic principles to explain carbonate platform characteristics and stratigraphic relationships Offers a new, genetic classification of carbonate porosity that is especially useful in predicting spatial distribution of pore networks.
Download or read book Rock Fractures and Fluid Flow written by National Research Council and published by National Academies Press. This book was released on 1996-08-27 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific understanding of fluid flow in rock fracturesâ€"a process underlying contemporary earth science problems from the search for petroleum to the controversy over nuclear waste storageâ€"has grown significantly in the past 20 years. This volume presents a comprehensive report on the state of the field, with an interdisciplinary viewpoint, case studies of fracture sites, illustrations, conclusions, and research recommendations. The book addresses these questions: How can fractures that are significant hydraulic conductors be identified, located, and characterized? How do flow and transport occur in fracture systems? How can changes in fracture systems be predicted and controlled? Among other topics, the committee provides a geomechanical understanding of fracture formation, reviews methods for detecting subsurface fractures, and looks at the use of hydraulic and tracer tests to investigate fluid flow. The volume examines the state of conceptual and mathematical modeling, and it provides a useful framework for understanding the complexity of fracture changes that occur during fluid pumping and other engineering practices. With a practical and multidisciplinary outlook, this volume will be welcomed by geologists, petroleum geologists, geoengineers, geophysicists, hydrologists, researchers, educators and students in these fields, and public officials involved in geological projects.
Download or read book Fracture Development and Diagenesis of the Torridonian Applecross Formation Northwest Scotland written by Magdalena Alyssa Ellis and published by . This book was released on 2009 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Late Proterozoic Torridonian Applecross Sandstone, exposed west of the Paleozoic Moine Thrust Zone (MTZ) in the Northwest Highlands of Scotland, preserves fractures sets that reflect a 900 m.y. structural history. The Applecross Sandstone contains at least three systematically developed sets of fractures, A, B and L. Relative timing was determined by crosscutting relations. The oldest fractures, Set A, strikes north-south and is completely filled with quartz cement. These formed as opening-mode fractures, indicated by crack-seal texture along fracture walls, and later experienced reactivation as strike slip faults, as indicated by brecciated fracture fill. Set B has a trimodal distribution in orientation and contains clear, unbrecciated quartz. Set B reflects distributed MTZ-related deformation in the foreland; the three subsets, [BX], [BY], [BZ], are oriented as conjugates, front-normal, and front-parallel fractures to the Paleozoic Moine Thrust Zone. The youngest fractures, Set L, displays strikes ranging from NE to ESE. Although Set L fractures appear barren at the outcrop scale microscopy reveals they have a thin veneer of quartz. This fracture set is spatially and kinematically related to many small-displacement faults in the region that offset the Applecross, the overlying Cambrian Eriboll Formation, and the MTZ. Set L fractures increase in intensity by as much as an order of magnitude as faults are approached. Moreover, Set L is arranged into hierarchies of splay fractures. The sense of movement implied by splay fracture patterns is the same as that of the small faults. The growth and evolution of this fault and fracture system involves producing splay fractures at a range of orientations and scales in a 2 to 10 m wide halo of damage around the faults. The style of fault-related deformation in the Applecross Sandstone contrasts markedly with that of the overlying Cambrian Eriboll Formation (a quartzose marine sandstone), which is more fractured and displays patchy patterns with respect to the faultrelated fractures (Set L), rather than the halo-like patterns observed in the Applecross. The Applecross and Eriboll differ in composition (subarkose vs. quartzarenite), mechanical layer thickness (>tens of meters vs. centimeters), mechanical properties, and propensity for fractures to seal readily in the quartzose Eriboll compared to the lithic and feldspar-rich Applecross, where quartz cement growth is impaired by the widespread presence of non-quartz substrate on fracture walls. I used point counting methods and rock mechanical property tests to characterize the rock mass and diagenetic history of the Applecross. The feldspar and clay mineral rich Applecross may represent a lithology that is resistant to fracturing. I also used high resolution scanning electron microscopy with cathodoluminescence (CL), scanline methodologies, and field fracture mapping to characterize the fracture cement textures and size scaling attributes of the fracture sets.
Download or read book The Geometry and Petrogenesis of Dolomite Hydrocarbon Reservoirs written by Colin J. R. Braithwaite and published by Geological Society of London. This book was released on 2004 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wide distribution of dolomite rocks in North American, Middle- and Far-Eastern hydrocarbon reservoirs is reason enough for their intensive study. In this volume dolomite enthusiasts review progress and define the current boundaries of dolomite research, related particularly to the importance of these rocks as reservoirs.
Download or read book Fundamental Controls on Fluid Flow in Carbonates written by S.M. Agar and published by Geological Society of London. This book was released on 2015-02-02 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights key challenges for fluid-flow prediction in carbonate reservoirs, the approaches currently employed to address these challenges and developments in fundamental science and technology. The papers span methods and case studies that highlight workflows and emerging technologies in the fields of geology, geophysics, petrophysics, reservoir modelling and computer science. Topics include: detailed pore-scale studies that explore fundamental processes and applications of imaging and flow modelling at the pore scale; case studies of diagenetic processes with complementary perspectives from reactive transport modelling; novel methods for rock typing; petrophysical studies that investigate the impact of diagenesis and fault-rock properties on acoustic signatures; mechanical modelling and seismic imaging of faults in carbonate rocks; modelling geological influences on seismic anisotropy; novel approaches to geological modelling; methods to represent key geological details in reservoir simulations and advances in computer visualization, analytics and interactions for geoscience and engineering.
Download or read book Atlas of Natural and Induced Fractures in Core written by John C. Lorenz and published by John Wiley & Sons. This book was released on 2017-11-29 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: An invaluable reference that helps geologists recognize and differentiate the many types of natural fractures, induced fractures and artefacts found in cores Atlas of Natural and Induced Fractures in Core offers a reference for the interpretation of natural and induced fractures in cores. The natural and induced fracture data contained in cores provides a wealth of information once they are recognized and properly interpreted. Written by two experts in the field, this resource provides a much-needed tool to help with the accurate interpretation of these cores. The authorsinclude the information needed to identify different fracture types as well as the criteria for distinguishing between the types of fractures. The atlas shows how to recognize non-fracture artefacts in a core since many of them provide other types of useful information. In addition, the text’s illustrated structures combined with their basic interpretations are designed to be primary building blocks of a complete fracture assessment and analysis. The authors show how to recognize and correctly interpret these building blocks to ensure that subsequent analyses, interpretations, and modeling efforts regarding fracture-controlled reservoir permeability are valid. Presented in full color throughout, this comprehensive reference is written for geologists charged with interpreting fracture-controlled permeability systems in reservoirs as well as for students or other scientists who need to develop the skills to accurately interpret the natural and induced fractures in cores.
