Article
Geosciences, Multidisciplinary
Gabor Tari, Gabor Bada, David R. D. Boote, Csaba Krezsek, Balazs Koroknai, Gabor Kovacs, Viktor Lemberkovics, Reinhard F. Sachsenhofer, Tamas Toth
Summary: The Pannonian Basin complex has a cumulative production of approximately 13 billion BOE. Estimates suggest that there are over 5 billion BOE of combined conventional and unconventional hydrocarbon potential remaining in this mature basin. The presence of multiple source rocks, stacked reservoirs, thick basin fill, established infrastructure, subsurface data, and access to markets make the Pannonian Basin similar to other super basins.
Article
Chemistry, Multidisciplinary
Jie Tang, Xiaocheng Zhou, Yongxian Zhang, Jiao Tian, Miao He, Jingchao Li, Jinyuan Dong, Yucong Yan, Fengli Liu, Shupei Ouyang, Kaiyi Liu
Summary: Hydrogeochemical characterization studies were conducted on hot spring water and gas samples collected from the intersection of Altyn Tagh fault zone and East Kunlun fault belt. The results showed that the water chemistry types of the hot springs were Na center dot Mg-Cl, Mg center dot Na-Cl center dot HCO3, Na-Cl center dot SO4, and Na-Cl center dot HCO3. The study also revealed the occurrence of microseismic activity due to the release of deep fluids in the region.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Madhumita Chakraborty, Abhijit Mukherjee, Kazi Matin Ahmed
Summary: This study characterizes the geochemical and isotopic signatures of groundwater in the Ganges River delta, and identifies three major aquifer sub-systems. The study shows that the hydrostratigraphy plays a significant role in the spatial distribution of arsenic, and also discusses the redox conditions and stable isotopic signatures of the groundwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Civil
Bin Ma, Xin Huang, Xiaocong Cui, Xing Liang, Jingwen Su, Menggui Jin
Summary: The study aims to understand water-rock interaction and groundwater flow processes in aquifers with different mineralogy at the basin scale. Major ion geochemistry and environmental isotopes were used in the Qingyi river basin to investigate aquifers composed of marine carbonate and continental granitic sediments. The results show that dissolution of limestone, silicate minerals, and evapotranspiration play important roles in the hydrogeochemical processes. The study also found evidence of inter-aquifer flow and karstic groundwater leakage.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Chandrika Dhanapalan Aju, Rajesh Reghunath, Ashokan Laila Achu, Ambujendran Rajaneesh
Summary: The study on the hydrogeochemistry of groundwater in the Kallada River Basin in South India revealed rock-water interaction processes and major ion concentration changes, providing significant insights into the hydrogeochemical processes in KRB. The dominant groundwater types and geochemical associations varied spatially and temporally, highlighting the complex hydrogeochemical characteristics of the region. The pre-monsoon water types were Ca2+-Mg2+-Cl- while post-monsoon saw a shift to Na+-Cl-, with deeper wells showing a consistent Na+-Cl- water type throughout the seasons.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
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
Geochemistry & Geophysics
Yajie Zhao, Jack Nohavitza, Ryan Williams, Wei Yu, Chuxi Liu, Reza Ganjdanesh, Kamy Sepehrnoori
Summary: This paper conducts a comprehensive sensitivity study on the long-term (20 years) gas-to-oil ratio behavior of unconventional wells, establishing a general framework for interpreting GOR behavior. The simulation results reveal the impact of key drivers such as completion designs, reservoir, and fracture properties.
Article
Environmental Sciences
Brigitta Czauner, Zsoka Szabo, Bela Marton, Judit Madl-Szonyi
Summary: This paper introduces the concept of hydraulic traps and applies it to the migration and accumulation models of biogenic or microbial methane. By improving the hydraulic evaluation methodology and applying it to a study area in the Central Pannonian Basin, the first groundwater flow controlled dissolved biogenic gas migration and accumulation model has been established.
Article
Environmental Sciences
Liwen Huang, Ziyong Sun, Aiguo Zhou, Junbo Bi, Yunde Liu
Summary: This study investigated the distribution characteristics and controlling processes of fluoride enrichment in groundwater in arid inland irrigated areas. The results showed that fluoride concentration in groundwater was generally high and positively correlated with salinity. River water was identified as the main source of fluoride in groundwater, and anthropogenic inputs were found to contribute to fluoride enrichment.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geochemistry & Geophysics
Sara R. Kimmig, Matthew D. Nadeau, Peter K. Swart, Chris Holmden
Summary: The formation of dolomite may be influenced by subsurface fluid flow, rather than seawater. Analysis of gradients in Sr-87/Sr-86 ratios and δMg-26 values in dolomites can reveal different geological processes affecting dolomitization.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Environmental Sciences
Gyojin Keum, Yeongkyoo Kim, Kwang-Sik Lee, Jina Jeong
Summary: The geochemical characteristics of the Nakdong River in South Korea were examined, and it was found that the water chemistry of the river is influenced by both anthropogenic activities and geological factors. The concentration of major ions in the water was affected by both human activities and rock weathering. Precipitation levels and land use also played a role in the geochemistry of the river water.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Environmental Sciences
Jie Chen, Yanyan Gao, Hui Qian, Wenhao Ren, Wengang Qu
Summary: A hydrochemical analysis of groundwater in the Guanzhong Plain in China identified factors influencing fluoride concentrations in different regions. The study found that carbonate weathering was the main factor in low-fluoride groundwater, while evaporate dissolution and evaporation were key factors in high-fluoride zones. Different forces, such as irrigation-induced dilution and mineral adsorption, were responsible for fluoride behavior in high-fluoride groundwater zones, which had a distinct major ion chemistry. This research enhances our understanding of fluoride dynamics in groundwater and the impact of irrigation practices on fluoride concentrations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Ecology
Jean-Francois Carrias, Bruno Corbara, Celine Leroy, Regis Cereghino
Summary: A large part of freshwater microorganism biodiversity is found in the bromeliad ecosystem of the Neotropics. However, the processes that shape diversity in these small water bodies have been understudied. In this study, we investigated the factors that influence the diversity patterns of algal communities in bromeliads across a large region. We found that habitat size, complexity, organic matter content, and light energy were the main drivers of algal community structure and richness.
FRESHWATER BIOLOGY
(2022)
Article
Water Resources
Maurus Borne, Christof Lorenz, Tanja C. Portele, Eduardo Savio P. R. Martins, Francisco das Chagas Vasconcelos Junior, Harald Kunstmann
Summary: This study focuses on the Sa tilde o Francisco River Basin in Brazil and applies an Ensemble Kalman Filter framework to predict sub-basin-scale runoff using freely available global datasets. The results show that the quality of runoff predictions is closely linked to the performance of rainfall seasonal predictions, with skillful predictions up to two months ahead in most sub-basins. Anthropogenic conditions can also affect the predictions, particularly in areas with non-stationary runoff time-series.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Computer Science, Interdisciplinary Applications
Qianan Yu, Yuanlai Cui, Luguang Liu
Summary: This study conducted a regional-scale global sensitivity analysis by selecting multiple stations to assess the sensitivity of parameters in a specific area. The results showed that the applicable area for sensitive parameters was slightly smaller than the grid size around the station. It was recommended to choose an appropriate number of stations for sensitivity analysis at the regional scale.
ENVIRONMENTAL MODELLING & SOFTWARE
(2023)
Article
Geosciences, Multidisciplinary
Shuangpo Ren, Andrew D. Parsekian, Ye Zhang, Bradley J. Carr
Article
Materials Science, Multidisciplinary
Jeffrey D. Hyman, Satish Karra, J. William Carey, Carl W. Gable, Hari Viswanathan, Esteban Rougier, Zhou Lei
MECHANICS OF MATERIALS
(2018)
Article
Geosciences, Multidisciplinary
Shuangpo Ren, Andrew D. Parsekian, Ye Zhang, Bradley J. Carr
Article
Geochemistry & Geophysics
Wei Wang, Po Chen, Ian Keifer, Ken Dueker, En-Jui Lee, Dawei Mu, Jianying Jiao, Ye Zhang, Bradley Carr
EARTH AND PLANETARY SCIENCE LETTERS
(2019)
Article
Geosciences, Multidisciplinary
Shuangpo Ren, Guangqing Yao, Ye Zhang
MARINE AND PETROLEUM GEOLOGY
(2019)
Editorial Material
Geosciences, Multidisciplinary
Ye Zhang, Y. Z. Ma, Ernest Gomez
MARINE AND PETROLEUM GEOLOGY
(2020)
Article
Engineering, Civil
Jianying Jiao, Ye Zhang, Liqiang Wang
JOURNAL OF HYDROLOGY
(2019)
Article
Computer Science, Interdisciplinary Applications
Matthew R. Sweeney, Carl W. Gable, Satish Karra, Philip H. Stauffer, Rajesh J. Pawar, Jeffrey D. Hyman
COMPUTATIONAL GEOSCIENCES
(2020)
Article
Energy & Fuels
Danchen Li, Soheil Saraji, Zunsheng Jiao, Ye Zhang
Summary: The study investigated the efficiency of different injection strategies for simultaneous CO2 EOR and storage in ultra-low permeability core samples. Water alternative gas injection was found to be more effective than continuous gas injection, while cyclic gas injection provided the most efficient strategy for enhanced oil recovery in the tight rocks studied.
Article
Green & Sustainable Science & Technology
Minh C. Nguyen, Morteza Dejam, Mina Fazelalavi, Ye Zhang, Garrett W. Gay, David W. Bowen, Lee H. Spangler, Wade Zaluski, Philip H. Stauffer
Summary: This study investigates formation damage in the Middle Duperow Formation at Kevin Dome, Montana, caused by acidization and water injection tests, potentially affecting the success of future Geological Carbon Sequestration (GCS) projects. Analytical models, numerical simulations, and geochemical calculations were used to determine the causes of formation damage, suggesting that mechanical and chemical processes such as anhydrite fines migration and calcite precipitation may have occurred during injection. The study provides preventative suggestions for future GCS projects and remediation recommendations for GCS operations at Kevin Dome.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Environmental Sciences
Shuangpo Ren, Ye Zhang, Tian-Chyi Jim Yeh, Yuli Wang, Bradley J. Carr
Summary: The study characterized the horizontal hydraulic conductivity of a fractured granitic aquifer using single- and cross-hole hydraulic tests, finding that the principal direction and magnitude of K-eff depend on the pumping test duration and the number of monitoring boreholes. It was observed that K obtained from cross-hole tests is larger than that obtained from single-hole tests.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Sciences
Ahmad H. Askar, Tissa H. Illangasekare, Andrew Trautz, Jakub Solovsky, Ye Zhang, Radek Fucik
Summary: Natural fissures/faults or pressure-induced fractures in the caprock can potentially leak far-field native brine contaminating underground drinking water sources. Developing accurate models to simulate brine propagation through various formations and aquifers is crucial for site selection and risk assessment. Uncertainties in source conditions, such as hydro-structural properties of caprock fracture/fault zone and permeability field of storage formation, can impact the accuracy of brine plume predictions.
WATER RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Wei Wang, Po Chen, Ken Dueker, Ye Zhang, En-jui Lee, Dawei Mu, Ian Keifer, Jianying Jiao
Summary: This study examines the relationship between the weathering front and the water table in a granite terrain in the Laramie Range, Wyoming, using advanced imaging technology and extensive field data. The results suggest a coevolution of the weathering front and water table in a positive cycle, gradually flattening the water table, enhancing groundwater drainage rates, and exposing underlying bedrock to weathering.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
A. N. Price, A. T. Fisher, P. H. Stauffer, C. W. Gable
Summary: In this study, coupled (fluid-heat) numerical simulations were used to investigate the fluid-heat transport in the oceanic crust in and below North Pond, a sediment pond in the North Atlantic Ocean. The simulations revealed that the advective transport beneath North Pond is complex and time varying, with multiple spatial and temporal scales. Additionally, the simulations showed that a unidirectional, single-pass flow system is not necessary to match the observed heat flux distribution through the sediments in North Pond.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Mathematics, Applied
Johannes Krotz, Matthew R. Sweeney, Carl W. Gable, Jeffrey D. Hyman, Juan M. Restrepo
Summary: We present the near-Maximal Algorithm for Poisson-disk Sampling (nMAPS), which generates point distributions for variable resolution Delaunay triangular and tetrahedral meshes in two and three dimensions. nMAPS achieves efficient mesh generation and produces high-quality meshes.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2022)