Article
Energy & Fuels
Alejandro Bello-Palacios, Per Fotland, Geir Ersland
Summary: This study investigates the relationships between sedimentation rate, transport properties, and the formation and evolution of hydrates in fine-grained marine sediments, as well as their corresponding BSR responses. Through one-dimensional simulations, the study models the flow and transport of mass and heat through porous media during sedimentation. The results show that sedimentation affects the geothermal gradient and the stability zone of gas hydrates, leading to changes in the distribution of phases and the relocation of the base of the GHSZ over geological time.
Article
Geosciences, Multidisciplinary
M. Foschi, G. Etiope, J. A. Cartwright
Summary: Large microbial gas hydrate deposits in the Rakhine Basin, Bay of Bengal, are found to have migrated from a deeper petroleum system and play a significant role in the gas system. The detection of active free-phase gas migration towards the shallow gas hydrate stability zone indicates the potential environmental impact. These findings are crucial for understanding the origin and behavior of submarine methane-rich gas hydrates.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Mei Mei, Alan K. Burnham, Noelle Schoellkopf, Johannes Wendebourg, Francois Gelin
Summary: Improved understanding and prediction of petroleum expulsion, retention, and producibility from source rocks in the Lower Vaca Muerta Formation in the Neuquén Basin, Argentina were achieved through the integration of 3D basin modeling with customized compositional kinetics and retention modeling. The modeling results demonstrate basin-wide petroleum expulsion starting in the late Cretaceous and ceasing in the mid-Eocene, with different types of expulsion occurring at different thermal maturity levels, leading to changes in rock properties and petroleum composition.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Aleksei Kishankov, Pavel Serov, Stefan Bunz, Henry Patton, Alun Hubbard, Rune Mattingsdal, Sunil Vadakkepuliyambatta, Karin Andreassen
Summary: The Barents Sea has experienced intense erosion due to uplift and glaciation, leading to hydrocarbon leakage. The primary factors controlling gas leakage include erosion amount, distribution, and timing of glaciation. Analyzing the results, approximately 20% of oil and gas was lost during the first deglaciation episode, followed by an additional 15% decrease in gas due to seal breach.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Engineering, Environmental
Byeonggwan Lee, Kyuchul Shin, Sanehiro Muromachi, Igor L. Moudrakovski, Christopher I. Ratcliffe, John A. Ripmeester
Summary: Antifreezes such as methanol and ammonia can enhance methane storage in binary clathrate hydrates like THF and TBAB. Methanol acts as a catalyst for methane hydrate formation and induces TBAB hydrates to form an orthorhombic structure suitable for methane storage. These findings suggest that methanol could play a crucial role in hydrate-based methane storage systems.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
O. S. Gaidukova, V. V. Dorokhov, S. Y. Misyura, V. S. Morozov, N. E. Shlegel, P. A. Strizhak
Summary: The dissociation and combustion of methane hydrate samples were experimentally studied under different thermal conditions. The synergistic effects of simultaneously dissociating methane and carbon dioxide hydrates were analyzed. It was found that ignition of methane hydrate granules was faster than tablets, and increasing the combustion chamber temperature improved the ignition performance of tablets.
Article
Green & Sustainable Science & Technology
Shuaishuai Nie, Chen Chen, Min Chen, Jian Song, Yafei Wang, Yingrui Ma
Summary: The novel five-spot injection-production system combined with hydraulic fracturing successfully addressed the challenges of methane leakage and low production in the exploitation of oceanic gas hydrate reservoirs. Optimal plans for challenging hydrates in the Shenhu area include a well spacing of 100-120 m and fracture conductivity greater than 20 D center dot cm, resulting in effective gas production and methane storage.
Article
Geosciences, Multidisciplinary
Furong Tan, Yang Li, Yigui Han, Guochun Zhao, Shiming Liu, Fangpeng Du, Zhiqing Xie, Ping Lu
Summary: This study provides new evidence for biodegradation of petroleum in the South Qilian basin in Northwest China, offering important insights for determining the origin of petroleum and gas hydrates in the region.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Environmental Sciences
Diana Burns, Emily Grubert
Summary: Although natural gas is considered a standardized commodity fuel, its life cycle impacts vary significantly due to its greenhouse gas intensity, particularly methane emissions from the production stage. Research shows variability in production-stage methane emissions by state in the United States, contributing to the overall environmental footprint of natural gas consumption.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Yan Li, Yun-Xin Fang, Qian-Zhi Zhou, Xiang-Po Xu, Jin-Zhong Liu, Guo-Yi Zhou, Jiang-Hai Wang
Summary: The study reveals the presence of branched saturated fatty acids from sulfate-reducing bacteria in methane hydrate-bearing sediments in the South China Sea, indicating active microbial activities and significant environmental changes. Carbon isotope analysis suggests that alkanes and methane in hydrate deposits may originate from deep oil/gas reservoirs rather than methane, providing evidence of the contribution of deep oil/gas reservoirs to the formation of methane hydrate deposits in the South China Sea.
GEOSCIENCE FRONTIERS
(2021)
Article
Engineering, Environmental
Yuanlei Chen, Evan D. Sherwin, Elena S. F. Berman, Brian B. Jones, Matthew P. Gordon, Erin B. Wetherley, Eric A. Kort, Adam R. Brandt
Summary: Limiting methane emissions from oil and gas activities presents a significant opportunity for immediate climate benefits. A basin-wide airborne survey in the New Mexico Permian Basin revealed that methane emissions accounted for 9.4% of total gas production, with 50% coming from large emission sources.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Christopher Schmidt, Shubhangi Gupta, Lars Rupke, Ewa Burwicz-Galerne, Ebbe H. Hartz
Summary: Gas hydrate recycling is a cyclic process involving gas hydrate melting, free gas nozzling through the hydrate layer, formation of a new gas hydrate layer, and fast uninhibited growth of a new hydrate layer. High hydrate saturations of about 80% can be attained purely through physical, burial-driven recycling of gas hydrates.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Energy & Fuels
Changrui Shi, Shuai Wang, Huiquan Liu, Lunxiang Zhang, Mingjun Yang, Yongchen Song, Jiafei Zhao, Zheng Ling
Summary: This study presents a simple and scalable strategy to produce aerogels as efficient promoters for methane hydrate formation. The as-made aerogels significantly improve the formation kinetics of methane hydrate and show high storage capacity and cycling stability. The study also investigates the molecular mechanisms behind the enhanced formation of methane hydrate through the interaction between oxygen-containing surface functional groups and water molecules.
Article
Engineering, Environmental
Gaurav Bhattacharjee, Hari Prakash Veluswamy, Asheesh Kumar, Praveen Linga
Summary: Solidified Natural Gas (SNG) technology provides a compact and safe option for large-scale natural gas storage. Introducing thermodynamic promoters like THF into the classical methane-water system enables rapid gas uptake at moderate pressure and temperature. The study compares the stability of cylindrical mixed methane-THF (sII) and pure methane (sI) hydrate pellets, with results showing exceptional stability of sII hydrates and significant gas evolution from sI hydrates stored at different temperatures. Long-term stability testing of methane-THF (sII) hydrate pellets produced using fresh and seawater demonstrates the commercial viability of SNG technology.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Daniel Schiffner, Maik Kecinski, Sandeep Mohapatra
Summary: In Alberta, Canada, the number of leak incidents and unresolved leaks from temporarily plugged or suspended wells has increased from 1971 to 2019, along with a substantial rise in methane emissions per leak. Responsible policies can incentivize well owners to address these issues and support efforts to combat climate change.
Article
Geosciences, Multidisciplinary
W. A. Sonibare, J. Sippel, R. di Primio, Z. Anka, M. Scheck-Wenderoth, D. Mikes
MARINE AND PETROLEUM GEOLOGY
(2018)
Article
Geosciences, Multidisciplinary
Suzanne Bull, Andrew Nicol, Dominic Strogen, Karsten F. Kroeger, Hannu S. Seebeck
Article
Geology
Gareth J. Crutchley, Karsten F. Kroeger, Ingo A. Pecher, Andrew R. Gorman
Article
Geosciences, Multidisciplinary
Karsten F. Kroeger, Glenn P. Thrasher, Monmoyuri Sarma
MARINE AND PETROLEUM GEOLOGY
(2019)
Article
Geochemistry & Geophysics
Svetoslav Georgiev, Holly J. Stein, Judith L. Hannand, Gang Yang, Richard J. Markey, Carl E. Dons, Jon H. Pedersen, Rolando di Primio
Article
Energy & Fuels
Martin Stockhausen, Roberto Galimberti, Lea Di Paolo, Rouven Elias, Francois Gelin, Ulrich Berner, Michael Erdmann, Jon Halvard Pedersen, Rolando Di Primio, Lorenz Schwark
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Geochemistry & Geophysics
Steve Larter, Renzo C. Silva, Norka Marcano, Lloyd R. Snowdon, J. Eduardo Villarreal-Barajas, Roshanak Sonei, Lydia C. Paredes Gutierrez, Haiping Huang, Andrew Stopford, Thomas B. P. Oldenburg, Jing Zhao, Priyanthi Weerawardhena, Michael Nightingale, Bernhard Mayer, Jon H. Pedersen, Rolando di Primio
GEOCHIMICA ET COSMOCHIMICA ACTA
(2019)
Article
Multidisciplinary Sciences
Arunima Sen, Cheshtaa Chitkara, Wei-Li Hong, Aivo Lepland, Sabine Cochrane, Rolando di Primio, Harald Brunstad
Article
Geochemistry & Geophysics
K. F. Kroeger, G. J. Crutchley, R. Kellett, P. M. Barnes
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2019)
Article
Geochemistry & Geophysics
Jess I. T. Hillman, Gareth J. Crutchley, Karsten F. Kroeger
MARINE GEOPHYSICAL RESEARCH
(2020)
Article
Geochemistry & Geophysics
S. D. Killops, H. P. Nytoft, R. di Primio
ORGANIC GEOCHEMISTRY
(2019)
Article
Geosciences, Multidisciplinary
Zachary F. M. Burton, Karsten F. Kroeger, Allegra Hosford Scheirer, Yongkoo Seol, Blair Burgreen-Chan, Stephan A. Graham
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Geosciences, Multidisciplinary
Karsten F. Kroeger, Gareth J. Crutchley, Jess It Hillman, Francesco Turco, Philip M. Barnes
Summary: Gas hydrates are found along convergent margins and their distribution is influenced by factors such as gas sources and permeable faults. 3D modeling shows that the gas is predominantly sourced from microbial generation and migrates through thrust faults and permeable strata to form gas hydrates. Over the past 2 million years, continuous gas migration due to ridge deformation has led to the enrichment of gas hydrates, a process that may be common in many convergent margins.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Karsten F. Kroeger, Alan Bischoff, Andy Nicol
Summary: Buried volcanic systems have the potential for hydrocarbon exploration and fluid storage, but the integrity of the seal and the structural evolution play a crucial role in their potential. Leakage of hydrocarbon and greenhouse gases from volcanos could have significant global implications.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Anna Kutovaya, Karsten F. Kroeger, Hannu Seebeck, Stefan Back, Ralf Littke