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Author: Jürgen Mienert Publisher: Springer Nature ISBN: 3030811867 Category : Science Languages : en Pages : 515
Book Description
This world atlas presents a comprehensive overview of the gas-hydrate systems of our planet with contributions from esteemed international researchers from academia, governmental institutions and hydrocarbon industries. The book illustrates, describes and discusses gas hydrate systems, their geophysical evidence and their future prospects for climate change and continental margin geohazards from passive to active margins. This includes passive volcanic to non-volcanic margins including glaciated and non-glaciated margins from high to low latitudes. Shallow submarine gas hydrates allow a glimpse into the past from the Last Glacial Maximum (LGM) to modern environmental conditions to predict potential changes in future stability conditions while deep submarine gas hydrates remained more stable. This demonstrates their potential for rapid reactions for some gas hydrate provinces to a warming world, as well as helping to identify future prospects for environmental research. Three-dimensional and high-resolution seismic imaging technologies provide new insights into fluid flow systems in continental margins, enabling the identification of gas and gas escape routes to the seabed within gas hydrate environments, where seabed habitats may flourish. The volume contains a method section detailing the seismic imaging and logging while drilling techniques used to characterize gas hydrates and related dynamic processes in the sub seabed. This book is unique, as it goes well beyond the geophysical monograph series of natural gas hydrates and textbooks on marine geophysics. It also emphasizes the potential for gas hydrate research across a variety of disciplines. Observations of bottom simulating reflectors (BSRs) in 2D and 3D seismic reflection data combined with velocity analysis, electromagnetic investigations and gas-hydrate stability zone (GHSZ) modelling, provide the necessary insights for academic interests and hydrocarbon industries to understand the potential extent and volume of gas hydrates in a wide range of tectonic settings of continental margins. Gas hydrates control the largest and most dynamic reservoir of global carbon. Especially 4D, 3D seismic but also 2D seismic data provide compelling sub-seabed images of their dynamical behavior. Sub-seabed imaging techniques increase our understanding of the controlling mechanisms for the distribution and migration of gas before it enters the gas-hydrate stability zone. As methane hydrate stability depends mainly on pressure, temperature, gas composition and pore water chemistry, gas hydrates are usually found in ocean margin settings where water depth is more than 300 m and gas migrates upward from deeper geological formations. This highly dynamic environment may precondition the stability of continental slopes as evidenced by geohazards and gas expelled from the sea floor. This book provides new insights into variations in the character and existence of gas hydrates and BSRs in various geological environments, as well as their dynamics. The potentially dynamic behavior of this natural carbon system in a warming world, its current and future impacts on a variety of Earth environments can now be adequately evaluated by using the information provided in the world atlas. This book is relevant for students, researchers, governmental agencies and oil and gas professionals. Some familiarity with seismic data and some basic understanding of geology and tectonics are recommended.
Author: Jürgen Mienert Publisher: Springer Nature ISBN: 3030811867 Category : Science Languages : en Pages : 515
Book Description
This world atlas presents a comprehensive overview of the gas-hydrate systems of our planet with contributions from esteemed international researchers from academia, governmental institutions and hydrocarbon industries. The book illustrates, describes and discusses gas hydrate systems, their geophysical evidence and their future prospects for climate change and continental margin geohazards from passive to active margins. This includes passive volcanic to non-volcanic margins including glaciated and non-glaciated margins from high to low latitudes. Shallow submarine gas hydrates allow a glimpse into the past from the Last Glacial Maximum (LGM) to modern environmental conditions to predict potential changes in future stability conditions while deep submarine gas hydrates remained more stable. This demonstrates their potential for rapid reactions for some gas hydrate provinces to a warming world, as well as helping to identify future prospects for environmental research. Three-dimensional and high-resolution seismic imaging technologies provide new insights into fluid flow systems in continental margins, enabling the identification of gas and gas escape routes to the seabed within gas hydrate environments, where seabed habitats may flourish. The volume contains a method section detailing the seismic imaging and logging while drilling techniques used to characterize gas hydrates and related dynamic processes in the sub seabed. This book is unique, as it goes well beyond the geophysical monograph series of natural gas hydrates and textbooks on marine geophysics. It also emphasizes the potential for gas hydrate research across a variety of disciplines. Observations of bottom simulating reflectors (BSRs) in 2D and 3D seismic reflection data combined with velocity analysis, electromagnetic investigations and gas-hydrate stability zone (GHSZ) modelling, provide the necessary insights for academic interests and hydrocarbon industries to understand the potential extent and volume of gas hydrates in a wide range of tectonic settings of continental margins. Gas hydrates control the largest and most dynamic reservoir of global carbon. Especially 4D, 3D seismic but also 2D seismic data provide compelling sub-seabed images of their dynamical behavior. Sub-seabed imaging techniques increase our understanding of the controlling mechanisms for the distribution and migration of gas before it enters the gas-hydrate stability zone. As methane hydrate stability depends mainly on pressure, temperature, gas composition and pore water chemistry, gas hydrates are usually found in ocean margin settings where water depth is more than 300 m and gas migrates upward from deeper geological formations. This highly dynamic environment may precondition the stability of continental slopes as evidenced by geohazards and gas expelled from the sea floor. This book provides new insights into variations in the character and existence of gas hydrates and BSRs in various geological environments, as well as their dynamics. The potentially dynamic behavior of this natural carbon system in a warming world, its current and future impacts on a variety of Earth environments can now be adequately evaluated by using the information provided in the world atlas. This book is relevant for students, researchers, governmental agencies and oil and gas professionals. Some familiarity with seismic data and some basic understanding of geology and tectonics are recommended.
Author: Davide Oppo Publisher: Frontiers Media SA ISBN: 2832537855 Category : Science Languages : en Pages : 236
Book Description
Methane is a strong climate-active gas, the concentration of which is rapidly increasing in the atmosphere. Vast methane reservoirs are hosted in seafloor sediments, both dissolved in pore fluids and trapped in gas hydrate. Cold seeps discharge significant amounts of this methane into the ocean. The rate of seabed methane discharge could be orders of magnitude higher than current estimates, creating considerable uncertainty. The extent of methane transfer from the seafloor to the water column and ultimately to the atmosphere is also uncertain. The seepage of methane and other hydrocarbons drives complex biogeochemical processes in marine sediments and the overlying water column. Seeps support chemosynthesis-based communities and impact the chemistry of the water column. Seeps may also play a critical role in ocean acidification and deoxygenation and can be geohazards, as well as a potential energy resource. Unraveling the complex and dynamic interactions and processes at marine seeps is crucial for our understanding of element cycling in the geo- and hydrosphere.
Author: B.T.G. Wandås Publisher: Gulf Professional Publishing ISBN: 0080538010 Category : Science Languages : en Pages : 320
Book Description
This book includes a selection of oral and poster presentations from "Onshore-Offshore Relationships on the Nordic Margin Conference" held in Trondheim in 2002. The conference was jointly arranged by the Norwegian Geological Society (NGF) and the Norwegian Petroleum Society (NPF), and attempted, through different thematic sessions, to bridge the gap often noted between industry and academic research. The first part of the conference included presentations under the theme "Basement control on offshore structuring" with representative articles from that segment included in this book and covering topics that range from analysis of vertical movements of basement substrates to the deep structural architecture of the Norwegian Sea to the development of the Jan Mayen microcontinent. These papers set the scene for the second segment of the conference, "Linking uplift and erosion with subsidence and deposition", that in the present book include articles related to the Triassic to Present-day infill history in the Norwegian and northern North Seas. The last segment of the conference addressed "New challenges" with respect to natural features of the deep-water areas that necessitate particular consideration and innovation on the part of research and industry to mitigate risk and maximize returns from field development. In this book, the articles addressing this theme present analyses of the enormous submarine slides that took place during the Holocene in the Norwegian Sea, and are of particular interest to the developers of the Ormen Lange gas field; other articles address the occurrences of gas hydrates in the near sea floor and the challenges presented in identifying and protecting the Lophelia cold-water reefs in the region. * Processes creating the structural framework for the deposition and depositional patterns in the Norwegian Sea and northern North Sea * Erosion and subsequent deposition of sediments in the subsiding deep-water basins in the Norwegian Sea area and northern North Sea * Challenges the oil industry has met in the deep-water areas of the Norwegian continental shelf
Author: Jürgen Mienert Publisher: Springer Science & Business Media ISBN: 3642558461 Category : Science Languages : en Pages : 309
Book Description
This book provides acoustic images about sedimentary systems of the shelf edge, slope and deep-sea-floor. Data obtained by the European North Atlantic Margin and the STEAM Project shows areas of potential instability and deepwater sediment transport systems on the continental slope. The knowledge gained can be used by both academia and hydrocarbon industry so as to arrive at a better understanding of continental margins and the processes shaping them. It will also interest colleagues in earth sciences involved in margin surveys for environmental studies. The current global trend in marine resource development is to move into deeper water, and this book can provide examples relevant to other passive margins around the world. There is a growing need for reliable measurements in deep water and knowledge related to stabilisation. Slope stability problems will be identified with greater reliability, thus improving safety standards for coastal and offshore environmental policies.
Author: Priska Schäfer Publisher: Springer Science & Business Media ISBN: 3642568769 Category : Science Languages : en Pages : 500
Book Description
The northern North Atlantic is one of the regions most sensitive to past and present global changes. This book integrates the results of an interdisciplinary project studying the properties of the Greenland-Iceland-Norwegian Seas and the processes of pelagic and benthic particle formation, particle transport, and deposition in the deep-sea sediments. Ice-related and biogeochemical processes have been investigated to decipher the spatial and temporal variability of the production and fate of organic carbon in this region. Isotopic stratigraphy, microfossil assemblages and paleotemperatures are combined to reconstruct paleoceanographic conditions and to model past climatic changes in the Late Quaternary. The Greenland-Iceland-Norwegian Seas can now be considered one of the best studied subbasins of the world`s oceans.
Author: Alexander P. Lisitzin Publisher: Springer Science & Business Media ISBN: 3642559050 Category : Science Languages : en Pages : 563
Book Description
This reference book for researchers working on glacial sediments provides a complete overview of the various glacial deposits in the ocean. It presents a collection of worldwide data on glacio-marine phenomena.
Author: M.D. Max Publisher: Springer Science & Business Media ISBN: 9781402013621 Category : Science Languages : en Pages : 460
Book Description
This is the first book published on the emerging research field of naturally occurring gas hydrates (focusing on methane hydrate) that is not primarily a physical chemistry textbook. This book is designed as a broad introduction to the field of hydrate science, demonstrating the significance of the hydrate cycle to energy resource potential, seafloor stability, and global climate and climate change, along with other issues. The best known hydrate localities are described, as are research and laboratory methods and results. The book consists of chapters grouped in related themes that present up-to-date information on methane hydrate. Each of the contributing authors is expert in hydrate science and most have been carrying out research in hydrate for a considerable time. Audience: This book will be an important source of information for marine geologists, geophysicists, geochemists, and petroleum geologists and regulators. It is also intended as a graduate-level textbook.
Author: Jürgen Mienert
Author: Jürgen Mienert
Author: Regina Katsman
Author: Qiaomu Qi
Author: Davide Oppo
Author: Vincent Lecours
Author: B.T.G. Wandås
Author: Jürgen Mienert
Author: Priska Schäfer
Author: Alexander P. Lisitzin
Author: M.D. Max