Coal and Coalbed Gas: Future Directions and Opportunities, Second Edition introduces the latest in coal geology research and the engineering of gas extraction. Importantly, the second edition examines how, over the last 10 years, research has both changed focus and where it is conducted. This shift essentially depicts "a tale of two worlds"—one half (Western Europe, North America) moving away from coal and coalbed gas research and production towards cleaner energy resources, and the other half (Asia–Pacific region, Eastern Europe, South America) increasing both research and usage of coal. These changes are marked by a precipitous fall in coalbed gas production in North America; however, at the same time there has been a significant rise in coal and coalbed gas production in Australia, China, and India. The driver for higher production and its associated research is a quest for affordable energy and economic security that a large resource base brings to any country like Australia’s first large-scale coalbed gas to liquid natural gas projects supplying the demand for cleaner burning LNG to the Asian-Pacific region. Since the last edition of this book, global climate change policies have more forcibly emphasized the impact of methane from coal mines and placed these emissions equal to, or even more harmful than, CO2 emissions from fossil fuels in general. Governmental policies have prioritized capture, use, and storage of CO2, burning coal in new highly efficient low emission power plants, and gas pre-drainage of coal mines. The Organization for Economic Cooperation and Development (OECD) countries and China are also introducing new research into alternative, non-fuel uses for coal, such as carbon fibers, nanocarbons, graphene, soil amendments, and as an unconventional ore for critical elements. New to this edition: Each chapter is substantially changed from the 1st edition including expanded and new literature citations and reviews, important new data and information, new features and materials, as well as re-organized and re-designed themes. Importantly, three new chapters cover global coal endowment and gas potential, groundwater systems related to coalbed gas production and biogenic gas generation as well as the changing landscape of coal and coalbed gas influenced by global climate change and net-zero carbon greenhouse gas emissions. FOREWORD When I reviewed the first edition of this book, my initial thought was, "Do we need another book on coal geology?" and then I read it and realised, "Yes, we need this book" and my students downloaded copies as soon as it was available. So now we come to 2023, and a lot has happened in the past decade. For a different reason we might ask if we still need this book, or even coal geoscientists and engineers, as the world aims for rapid decarbonisation of the energy sector and a reduction of coal as a feedstock for industrial resources, like steel manufacture. Natural gas is earmarked as a transition fuel to enable the shift to renewables. In some basins, the source of that gas is directly from coalbed gas production or from conventional reservoirs that were charged by coal and terrestrial organic source rocks. Although the transition is escalating, there are projections that coal will remain part of our future, even after 2050, and can also provide alternative non-fuel resources (e.g., critical elements and carbon-based nanomaterials). Between now and then, we’d best ensure that we extract and utilise coal and coalbed gas as efficiently and safely as possible, that we mitigate any environmental and social impact of the process, and that we improve our certainty of predicting the behaviour of the material and material impacts. To do this we need to understand coal as a material and the inherent variability of its quality and behaviour as a source rock and host of coalbed gas. One can change the technologies but not the geological ground conditions or coal character of the targeted resource. The authors have taken on this ambitious endeavour during their careers and have attempted to capture their knowledge gained from first-hand experience in countries around the world and comprehensive review of published material, within this book. At least three generations of knowledge are drawn upon here. Tim Moore was a student of both Romeo Flores and his supervisor John Ferm, who was the "Warrior of Gentleness" when it came to coal research, teaching, and supervision. This book also reflects the broad and multidisciplinary aspects of coal geology and coal science and provides the tenets for one to understand different disciplines and how they interact to form an integrated view of the resource—technically, economically, and politically. Each chapter takes the reader through different concepts, first setting the scene by examining the status of coal and coalbed gas in a carbon-conscious world, then looking at the science behind coal as a source of gas and as a reservoir- in its own right. Further reading leads to learning about geological settings and the processes through time that led to present-day endowments around the globe and this theme continues throughout the book with detailed examples from different countries. Personally, I like the emphasis on the depositional environments that lead to peat accumulation and preservation—it’s all about the ingredients—which leads nicely into the world of coal macerals and minerals, and why they matter. Coalification and its role in changing the chemistry and material properties of coal is covered from a reservoir perspective, as is the role of biogenic processes. These have produced some of the enormous gas resources we exploit today and could also provide a future circular economy for neo-biogenic gas. The role of groundwater in this past and potentially future endeavour is presented, along with possible adverse effects where there is unexpected communication with regional and local aquifers and surface assets that detract from environmental and social licence. In addition to describing the geology and engineering technologies required to explore for, access, and utilise these resources, the book also provides insights into geostatistical and economic modelling for reserves estimation and challenges as reservoirs become more geologically and politically complex for extraction and alternatively, for injection and carbon sequestration. The final chapters revisit and integrate concepts presented in the book in order to examine global gas production and the geographic shifts in production and research that have occurred over the past decade(s). The also show how government and the market play a role, and project future trends. The authors provide discussion points for the outlook of coal as a fuel feedstock in a carbon-constrained world and the ongoing search for options and alternative non-fuel uses of coal while highlighting the important role that coal and coalbed gas still play during the transition period and beyond. There is much to learn from this book, which is based on decades of observing and interpreting patterns and trends in coal and coal-bearing basins. There is a growing trend towards using machine learning and artificial intelligence to find patterns in data and provide solutions. I’d suggest that domain intelligence, such as that provided in this book, is critical to supervising this process and is required for understanding and validating the outputs upon which many decisions are made and will continue to be made in the future. So yes, we need this book and I invite you to read, learn, and form your own ideas. If you find any gaps—write about them. Joan S. Esterle Emeritus Professor Vale Chair of Coal Geosciences The University of Queensland, AustraliaMay 2023
Management of Coking Coal Resources provides a one-stop reference that focuses on sustainable mining practices using a four-point approach that includes the economical, governmental, societal, and environmental aspects of coal exploration, coking coal mining, and steelmaking applications. This type of approach galvanizes the excavation, processing methods, and end uses of coal as an energy and steelmaking source, thus ensuring that the supply of coking coal meets the future demands of the rapidly expanding economies in India and other developing countries. The book provides information on the strategic planning and revitalization of India's Jharia coalfield, addressing actionable plans for methods of extraction, master plans for mine fires, subsidence management, land use planning, and sustainable mining. Users will find a multidisciplinary reference that presents the broad range of applications, techniques, and methodologies used in maintaining coking coal quality from exploration through extraction.
Coal and Peat Fires: A Global Perspective, Volumes 1–4, presents a fascinating collection of research about prehistoric and historic coal and peat fires. Magnificent illustrations of fires and research findings from countries around the world are featured—a totally new contribution to science. This third of four volumes in the collection, Coal Fires – Case Studies, examines in detail specific coal fires chronicled in a number of locations around the world including Brazil, the Czech Republic, Germany, Malawi, Poland, Russia, Spain, Tajikistan, the United States, Venezuela, and others.
Coal Bed Methane: From Prospect to Pipeline is the proceedings of the 25th anniversary of the North American Coal Bed Methane Forum. It provides the latest advancements in the production of coal bed methane covering a variety of topics, from exploration to gas processing, for commercial utilization. Additionally, it presents the origin of gas in coal, reservoir engineering, control of methane in coal mines, production techniques, water management, and gas processing. The vast coal resources in the United States continue to produce tremendous amounts of natural gas, contributing to a diverse range energy assets. Following a rapid advancement and subsequent plateau in technological developments, this book captures the full life cycle of a well and offers petroleum geologists and engineers a single source of a broad range of coal bed methane applications. This book addresses crucial technical topics, including exploration and evaluation of coal bed reservoirs; hydraulic fracturing of CBM wells; coal seam degasification; and production engineering and processing, among others. It also covers legal issues, permitting, and economic analysis of CBM projects.
Bridging the gap in expertise between coal and coalbed gas, subfields in which opportunities for cross training have been nonexistent, Coal and Coalbed Gas sets the standard for publishing in these areas. This book treats coal and coalbed gas as mutually inclusive commodities in terms of their interrelated origin, accumulation, composition, distribution, generation, and development, providing a balanced understanding of this energy mix. Currently considered a non-renewable energy resource, coalbed gas, or coalbed methane, is a form of natural gas extracted from coal beds. In recent years, countries have begun to seek and exploit coal for its clean gas energy in an effort to alleviate environmental issues that come with coal use, making a book on this topic particularly timely. This volume takes into account processes of coalification, gasification, and storage and reservoir characterization and evaluation and looks at water management and environmental impacts as well.
Coal and Peat Fires: A Global Perspective is a compelling collection of research conducted by scientists andengineers around the world. The first of four volumes in the collection, Coal – Geology and Combustion, features chapters that discuss the origin of coal and coal fires; mining and use of coal; combustion and coal petrology; environmental and health impacts of coal fires; combustion by-products; geochemical, geophysical, and engineering methodologies for studying coal fires; the control, extinguishment, and political implications of coal fires; and much more.
This book is an integrated approach towards the applications of coal (organic) petrology and discusses the role of this science in the field of coal and coal-related topics. Coal petrology needs to be seen as a continuum of organic (macerals) and inorganic (minerals and trace elements) contributions to the total coal structure, with the overprint of coal rank. All this influences the behavior of coal in utilization, the coal by-products, the properties of coal as a reservoir for methane or a sequestration site for carbon dioxide, and the relationships of coal utilization with health and environmental issues. The interaction of coal properties and coal utilization begins at the mine face. The breakage of the coal in mining influences its subsequent beneficiation. Beneficiation is fundamental to the proper combustion of coal and is vital to the preparation of the feedstock for the production of metallurgical coke. An understanding of basic coal properties is important for achieving reductions in trace element emissions and improving the efficiency of combustion and combined-cycle gasification. The production of methane from coal beds is related to the properties of the in situ coal. Similarly, coal bed sequestration of carbon dioxide produced from combustion is dependent on the reservoir properties. Environmental problems accompany coal on its way from the mine to the point of utilization and beyond. Health aspects related with coal mining and coal utilization are also included because, in planning for coal use, it is impossible to separate environmental and health issues from the discussion of coal utilization. The book is aimed at a wide audience, ranging from researchers, lecturers and students to professionals in industry and discusses issues (such as the environmental, and health) that are of concern to the general public as a whole.