A5049400103- Laser-induced spectroscopy and plasma
- Analytical chemistry methods development
- Mercury impact and mitigation studies
- Hydraulic Fracturing and Reservoir Analysis
- Laser Design and Applications
- Hydrocarbon exploration and reservoir analysis
- CO2 Sequestration and Geologic Interactions
- Cultural Heritage Materials Analysis
- Drilling and Well Engineering
- Atmospheric and Environmental Gas Dynamics
- Groundwater flow and contamination studies
- Methane Hydrates and Related Phenomena
- Seismic Imaging and Inversion Techniques
- Plasma Applications and Diagnostics
- Solid State Laser Technologies
- Coal and Its By-products
- Advanced Combustion Engine Technologies
- Petroleum Processing and Analysis
- Extraction and Separation Processes
- Experimental Learning in Engineering
- Analytical Chemistry and Sensors
- Mineral Processing and Grinding
- Reservoir Engineering and Simulation Methods
- Spectroscopy and Laser Applications
- Engineering Education and Pedagogy
National Energy Technology Laboratory
2015-2024
Mississippi State University
2018
United States Department of Energy
2004-2016
Morgantown High School
2008-2016
Bellingham Technical College
2015
West Virginia University
2004-2007
Science Museum of Minnesota
1999
University of Strathclyde
1996
James S. McDonnell Foundation
1975
Geochemical reactions may alter the permeability of leakage pathways in caprocks, which serve a critical role confining CO2 geologic carbon sequestration. A caprock specimen from carbonate formation Michigan sedimentary Basin was fractured and studied high-pressure core flow experiment. Inflowing brine saturated with at 40°C 10 MPa, resulting an initial pH 4.6, had calcite saturation index -0.8. Fracture decreased during experiment, but subsequent analyses did not reveal precipitation....
Abstract A flow‐through experiment was performed to investigate evolution of a fractured carbonate caprock during flow CO 2 ‐acidified brine. core taken from the Amherstburg limestone, formation overlying Bois Blanc and Bass Islands formations, which have been used demonstrate storage in Michigan basin. The inlet brine representative deep saline brines saturated with , resulting starting pH 4.4. Experimental conditions were 27 °C 10 MPa. X‐ray computed tomography scanning electron microscopy...
Fractures in geological formations may enable migration of environmentally relevant fluids, as leakage CO2 through caprocks geologic carbon sequestration. We investigated geochemically induced alterations fracture geometry Indiana Limestone specimens. Experiments were the first their kind, with periodic high-resolution imaging using X-ray computed tomography (xCT) scanning while maintaining high pore pressure (100 bar). studied two CO2-acidified brines having same pH (3.3) and comparable...
Abstract The Liujiagou formation is an important CO2 aquifer storage unit in the Ordos Basin central China. Thus far, it has stored over 90% of total injected from Shenhua carbon capture and (CCS) project, which first full-chain CCS project Understanding basic properties flooding critical for site characterization evaluation. A core-scale study sandstone step to understanding a project. pore geometry sample was characterized using medical, industrial, micro X-ray computed tomography (X-CT)...
Laser-induced breakdown spectroscopy (LIBS) was used to detect rare earth elements (REEs) in natural geological samples. Low and high intensity emission lines of Ce, La, Nd, Y, Pr, Sm, Eu, Gd, Dy were identified the spectra recorded from samples claim presence these REEs. Multivariate analysis executed by developing partial least squares regression (PLS-R) models for quantification Nd. Analysis unknown indicated that prediction results found comparable those obtained inductively coupled...
The increase of greenhouse gas (i.e., CO(2)) levels in the atmosphere has caused noticeable climate change. Many nations are currently looking into methods permanent underground storage for CO(2) an attempt to mitigate this problem. goal work is develop a process studying total carbon content soils before, during, and after injection ensure that no leakage occurring or determine how much leaking if it what effect will have on ecosystem between formation atmosphere. In study, we...
Leakage of injected carbon dioxide (CO 2 ) or resident fluids, such as brine, is a major concern associated with the injection large volumes CO into deep saline formations. Migration brine could contaminate drinking water resources by increasing their salinity endanger vegetation and animal life well human health. The main objective this study was to investigate effect sodium chloride (NaCl) concentration on detection calcium potassium in samples using laser-induced breakdown spectroscopy...
A significant portion of the carbon sequestration research being performed in United States involves risk assessment injecting large quantities dioxide into deep saline aquifers. Leakage CO2 has potential to affect quality groundwater supplies case contaminants migrate through underlying conduits. New remote sensing and near-surface monitoring technologies are needed ensure that injection, abandoned, wells structurally sound, remains within geologic storage reservoir. In this paper, we...
In geologic carbon sequestration, caprock fractures may act as leakage pathways, threatening the long term sealing ability of formation. A flow-through experiment was performed to investigate fracture evolution a fractured carbonate during simulated CO2-acidified brine. The initial brine composition represented that CO2-saturated having previously reacted with injection formation minerals resulting in starting pH 4.9. Experimental temperature and pressure conditions were 40 °C 10 MPa,...
Geologic carbon storage in deep saline aquifers is considered a feasible and possible approach of mitigating the problem increasing greenhouse gas emissions. However, there are latent risks which dioxide (CO 2 ) could migrate from formations to shallower aquifers. In event significant CO leakage an underground source drinking water, will dissolve thereby its acidity, potentially enhance solubility various aquifer constituents, including hazardous compounds, subsequently compromising...