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European Association of Geoscientists & Engineers
European Association of Geoscientists & Engineers20 results
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2nd Conference on Geophysics for Mineral Exploration and Mining
2nd Conference on Geophysics for Mineral Exploration and Mining
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Basin Research
Basin Research is an international journal which aims to publish original, high impact research papers on sedimentary basin systems. We view integrated, interdisciplinary research as being essential for the advancement of the subject area; therefore, we do not seek manuscripts focused purely on sedimentology, structural geology, or geophysics that have a natural home in specialist journals. Rather, we seek manuscripts that treat sedimentary basins as multi-component systems that require a multi-faceted approach to advance our understanding of their development. During deposition and subsidence we are concerned with large-scale geodynamic processes, heat flow, fluid flow, strain distribution, seismic and sequence stratigraphy, modelling, burial and inversion histories.
In addition, we view the development of the source area, in terms of drainage networks, climate, erosion, denudation and sediment routing systems as vital to sedimentary basin systems. The underpinning requirement is that a contribution should be of interest to earth scientists of more than one discipline.
Basin Research is published in association with the International Association of Sedimentologists and the European Association of Geoscientists and Engineers.
Editorial Board
Editor in Chief: Atle Rotevatn
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Velocities, Imaging, and Waveform Inversion
The evolution of characterizing the Earth’s subsurface (EET 13)Velocities, Imaging, and Waveform Inversion - The evolution of characterizing the Earth’s subsurface is part of Ian Jones' EAGE Education Tour and will be a fusion of practical industrial elements, concentrating on the origin and nature of the geological complexities that give rise to imaging problems, as well as a physical (rather than mathematical) understanding of subsurface parameter estimation, and will also look at some possible future directions. The course is designed for: practising geoscientists who desire to better understand the principles and limitations of both current and emerging technologies involved in subsurface parameter estimation and imaging and geoscience students. Following this course, participants should ideally understand how contemporary velocity estimation methods work, and what approximations are involved in obtaining computationally tractable solutions.
In using sound waves to characterise the Earth’s subsurface, we can employ ray theory and/or wave theory, and both migration algorithms and parameter estimation schemes employ one or other of these theoretical descriptions. In this course, we will review the evolution of the industry’s approaches to building earth models via velocity estimation and imaging, outlining the evolution from ray tomography to full waveform inversion, and look towards the emerging possibilities for replacing imaging techniques with direct subsurface parameter inversion methods.
The approach will be mostly non-mathematical, concentrating on an intuitive understanding of the principles, demonstrating them via case histories, and will be divided into the following sections:
- Dealing with the near surface
- The effects of strong vertical velocity contrasts
- The effects of strong lateral velocity contrasts
- Waves versus rays - Model building using ray methods (tomography)
- Model building using wavefield extrapolation methods (FWI)
- Data examples and comparisons
- Future developments
The first three sections outline the nature of the problems we face when building images representing subsurface impedance contrasts, and the next three deal with the technology we deploy to address the problems. In addition, I have included three appendices to outline: the historical development of model building, anisotropy and pre-processing considerations for complex imaging. Several of the individual chapters build on a series of recent tutorial papers which I published in First Break. However, only the key points from these tutorial papers are included, so I refer readers to the original papers for more detail and/or a range of real data examples for each of their topics.
However, due to space and time constraints in the EET format, I have had to omit or limit coverage of various topics, including migration of multiples, Marchenko and inverse scattering series migration, joint migration-inversion, least-squares migration and uncertainty estimation.
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Pre-Cambrian to Paleozoic Petroleum Systems of the Arabian Plate
The Precambrium to Palaeozoic covers nearly 4 billion years of Earth’s history. In this period, the Earth evolved from a ball of condensed gas into a blue planet with oceans, mountains, and life quite similar to the planet we live on today. From the Late Precambrium to the Late Palaeozoic (the period covered by this book), the earth experienced episodes of mass extinction, glaciations, and extreme climate change. It is the period in which life truly established itself on the planet and started to become an important factor in the geological processes shaping our earth. The large variations in climate and environment of the Arabian plate during the Late Precambrium to the Palaeozoic left its imprint on the geology of this part of the world. From the Silurian Qusaiba hotshales in Saudi Arabia to the Permo-carboniferous glacigenic Al-Khlata formation of Oman, the palaeozoic of the Arabian plate encompasses a diverse geology and hence a wide variety in hydrocarbon play concepts. Wherein certain Arabian Gulf countries the Precambrium-Palaeozoic strata already contribute significantly to the production of hydrocarbons, and in other Gulf countries this is still a frontier area for exploration. Hence, in 2018 a workshop was organized in Oman on the topic of Precambrian to Palaeozoic hydrocarbon geology of the Arabian plate. This workshop brought together numerous experts on this topic. The idea behind the workshop was that it is essential to share cross-border knowledge to further establish successful future exploration campaigns in the region. This book focusses on the Late Precambrium to the Palaeozoic and contains a selection of papers that were presented during this workshop and cover a wide range of topics in the field of Precambrium-Palaeozoic exploration geology of the Arabian plate. The four chapters cover topics in the field of structural geology, sedimentology, (tectono-) stratigraphy, and unconventional targets. It provides a good overview of current developments in Precambrium-Palaeozoic geology of the Arabian plate.
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First Break
First Break is the leading publication in Europe serving the geoscience and engineering community. While the main emphasis is on the oil and gas E&P industry, reflecting the membership of the EAGE, the magazine increasingly includes coverage of important related areas, such as environmental geoscience and mining. As a result First Break has a circulation that extends well beyond the membership of EAGE and is read worldwide as an authoritative source of relevant news, features, analysis, and accessible technical information.
Editorial Board
Editor in Chief: Gwenola Michaud
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First EAGE/SBGf Workshop on Least-Squares Migration
First EAGE/SBGf Workshop on Least-Squares Migration
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Geociencias Aplicadas Latinoamericanas
Geociencias Aplicadas Latinoamericanas is an international journal for the publication of primary research in applied geoscience disciplines.
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Geoenergy
Geoenergy is a new co-owned journal of the Geological Society and the European Association of Geoscientists and Engineers (EAGE), launched in January 2023.
Continuing the mission of its sister journal, Petroleum Geoscience, Geoenergy focuses on the publication of timely and topical research in subsurface geoscience, critical for this new era of sustainable energy.
The journal considers articles on the following themes:
Energy storage: thermal energy storage, compressed air energy storage, hydrogen storage, hydroelectric storage
Subsurface disposal and storage: carbon capture and storage (CCS), bioenergy with carbon capture and storage (BECCS), radioactive waste storage
Geothermal energy: exploration, characterization and modelling of geothermal fields
Hydrogen energy: exploration, production and storage of hydrogen
Critical minerals and raw materials: minerals for the energy transition
Sustainability: surveillance and long-term assurance for management of subsurface resources
Editorial Board
Editor-in-Chief: Sebastian Geiger
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Geophysical Prospecting
Geophysical Prospecting publishes the best in primary research on the science of geophysics as it applies to the exploration, evaluation and extraction of earth resources. Drawing heavily on contributions from researchers in the oil and mineral exploration industries, the journal has a very practical slant. Although the journal provides a valuable forum for communication among workers in these fields, it is also ideally suited to researchers in academic geophysics.
Editorial Board
Editor-in-Chief: Tijmen Jan Moser
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Journal of Environmental and Engineering Geophysics
Journal of Environmental and Engineering Geophysics.
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Near Surface Geophysics
Near Surface Geophysics is an international journal for the publication of research and development in geophysics applied to near surface. It places emphasis on geological, hydrogeological, geotechnical, environmental, engineering, mining, archaeological, agricultural and other applications of geophysics as well as physical soil and rock properties. Geophysical and geoscientific case histories with innovative use of geophysical techniques are welcome, which may include improvements on instrumentation, measurements, data acquisition and processing, modelling, inversion, interpretation, project management and multidisciplinary use. The papers should also be understandable to those who use geophysical data but are not necessarily geophysicists.
Editorial Board
Editor-in-Chief: Mark Vardy
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Petroleum Geoscience
Petroleum Geoscience publishes a balanced mix of articles that drives the science to enhance sustainable development covering all aspects of the petroleum system. The journal content reflects the international nature of the research. It welcomes a range of papers on themes that include:- Exploration, exploitation, appraisal, development and monitoring of sub-surface hydrocarbon resources.
- Enhancing exploration efficiency, lowering technological and environmental risk, and improving hydrocarbon recovery.
Transferable knowledge and integration of disciplines in an applied context.
Petroleum Geoscience’s sister journal, Geoenergy, was launched in January 2023. More details can be found here: https://www.earthdoc.org/content/journals/geoenergy
Editor-in-Chief: Jonathan Redfern
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Seismic Stratigraphy and Depositional Facies Models
Seismic stratigraphic techniques are nowadays part of the standard routine for interpreting seismic datasets and it is a fundamental tool for the E and P business. Its added value has been demonstrated over the past few decennia by an impressive proven track record in green field hydrocarbon exploration. Refinement and more diligent processing techniques (e.g., PrSDM, multi-focusing, full wavefield processing) necessitate a systematic approach towards 3D seismic interpretation. Seismic stratigraphy represents a coherent method for the analysis of sedimentary basin fills. The change in scale of observation, from individual outcrops to the regional framework, has been an eye-opener to many geoscientists. The results of seismic stratigraphic analysis form solid input for integrated quantitative subsurface reservoir studies. Better reservoir management decisions are made possible, when the reservoir characterisation approach is combined with 4D monitoring of the hydrocarbon exploitation and a feedback loop is adopted in the evaluations. Optimisation of the production in existing fields augments the ultimate recovery rate and this has a significant impact on the revenues generated from proven reserves. The seismic method improves the accuracy of subsurface forecasts and in consequence reservoir simulations are better matched to the observed production history. Seismic stratigraphy provides prediction details to shared earth model that were not available before. The benefits are documented by many case histories worldwide.
The textbook summarizes basic seismic interpretation techniques for sedimentary basin fills. A basic overview of seismic processing techniques is presented. The benefits of integrated reservoir studies for hydrocarbon exploration are demonstrated. These study techniques also apply to other geoscience domains like: mineral exploration, archaeology, environmental studies, C02 sequestration. Topics are presented from a practical point of view with abundant illustrations to support various case histories. The reader (students as well as professional geophysicists, geologists and reservoir engineers) is taken from an introductory to a more advanced study level. A wide range of interpretation issues are covered, all the way from 2D to 3D and even 4D with a multi-component approach. The link with sedimentology and depositional facies models is made. Some aspects of seismic sequence stratigraphy and structural deformation basin analysis are presented, but these topics will be described in more detail in the next volume of the series.
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Velocities, Time-imaging and Depth-imaging: Principles and Methods
There are numerous textbooks and publications on seismic processing, and in particular migration. However, we do not know of any work giving an overview of the many types of 'velocities' used in Seismics and how they relate to the different methods involved in the creation of the seismic image.
This text reviews the imaging methods used in the oil and gas industry today, with a unique emphasis on this relationship between imaging and velocity. It addresses imaging in both time and depth domains, spanning the range of complexity from NMO correction to sophisticated pre-stack migrations. Recent tools, such as inversion and demigration, and new directions, e.g. accounting for anisotropy have also been tackled. The work is comprehensively illustrated with a total of more than 200 figures.
The book should therefore be of interest to students looking for a complete introduction to seismic imaging techniques and their respective theoretical and practical merits and limitations. It is equally written to serve as a reference book for industry professionals, both generalists and specialists, who wish to revise standard techniques or take a look at some of the newer developments. In particular, interpreters, who participate in more and more tasks involving seismic velocities, will find answers to many of the questions which arise when, for example, tying seismic images to wells, creating post- and pre-stack time migration velocity fields, building a velocity model for depth migration or simply converting maps from time to depth.
The book is divided into four major sections:
Chapters 1-3 are dedicated to the fundamental concepts that lie behind elastic wave propagation within the subsurface, the velocity of such propagation, and the seismic imaging process itself. They should be considered as a (long!) introduction and most of the concepts will be used subsequently.
Chapters 4-6 outline the specific imaging principles: NMO, DMO, stack and post-stack migrations. In these chapters important ideas such as ‘migration in time’ and ‘migration in depth’ are presented. We also aim to clarify the relationship between velocity and migration, going on to show how improved velocity information leads to better seismic imaging, which in turn allows a better estimation of subsurface propagation velocities.
Chapter 7 generalizes the migration concepts from ‘post-stack’ to ‘prestack’ in both the time domain and the depth domain.
Chapter 8 recapitulates practical issues in estimating depth from the seismic image and the seismic velocity, and matching these with borehole data.
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