A5071844944- CO2 Sequestration and Geologic Interactions
- Groundwater flow and contamination studies
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Geological Modeling and Analysis
- Groundwater and Isotope Geochemistry
- Carbon Dioxide Capture Technologies
- Enhanced Oil Recovery Techniques
- Offshore Engineering and Technologies
- Reservoir Engineering and Simulation Methods
- Drilling and Well Engineering
- Geothermal Energy Systems and Applications
- Ocean Acidification Effects and Responses
- Fire effects on ecosystems
- Social Acceptance of Renewable Energy
- Spectroscopy and Laser Applications
- Geochemistry and Geologic Mapping
- Water-Energy-Food Nexus Studies
- Engineering Education and Pedagogy
- Water Quality and Resources Studies
- Climate Change and Environmental Impact
- Public Relations and Crisis Communication
- Vehicle emissions and performance
The University of Texas at Austin
2014-2025
Linköping University
2019-2025
Bureau of Economic Analysis
2014-2025
Bureau of Economic Geology
2016-2020
A critical issue for geologic carbon sequestration is the ability to detect CO 2 in vadose zone. Here we present a new process‐based approach identify that has leaked from deep storage reservoirs into shallow subsurface. Whereas current concentration‐based methods require years of background measurements quantify variability natural zone , this examines chemical relationships between N O and CH 4 promptly distinguish leakage signal . The method uses sequential inspection following gas...
Storing CO2 in depleted or depleting oil and gas fields has now been proven at a number of sites worldwide. Key risks have overcome, for example, relating to site design dealing with reduced reservoir pressure, re-using infrastructure managing wellbore integrity risks. Despite this, large-scale "pure" storage remains be tested closure CO2-EOR not yet occurred. It is hoped that dissemination key learnings from these will encourage inform discussions on elsewhere, allow the early consideration...
In developing a site for geologic sequestration, one must assess potential consequences of failure to adequately contain injected carbon dioxide (CO2). Upward migration CO2 or displacement saline water because increased pressure might impact protected resources 100s 1000s meters above sequestration interval. Questions posed are: (1) Can changes in chemistry fresh aquifers provide evidence leakage from deep injection/sequestration reservoirs containing brine and hydrocarbons? (2) What...
The Southeast Regional Carbon Sequestration Partnership (SECARB) early project in western Mississippi has been testing monitoring tools and approaches to document storage efficiency permanence under conditions of CO2 EOR as well downdip injection into brine. Denbury Onshore LLC is host for the study brought a depleted oil gas reservoir, Cranfield Field, flood. Injection was started July 2008 now achieved rates greater than 1.2 million tons/year though 23 wells, with cumulative mass injected...
This study developed a multicomponent geochemical model to interpret responses of water chemistry introduction CO2 into six water-rock batches with sedimentary samples collected from representative potable aquifers in the Gulf Coast area. The simulated dissolution groundwater, aqueous complexation, mineral reactions (dissolution/precipitation), and surface complexation on clay surfaces. An inverse method was used estimate area, key parameter for describing kinetic reactions. Modeling results...
At Cranfield, Mississippi, United States, a large‐scale carbon dioxide (CO 2 ) injection through an well (∼3,080 m deep) was continuously monitored using U‐tube samplers in two observation wells located 68 and 112 east of the injector. The Lower Tuscaloosa Formation zone, which consists amalgamated fluvial point‐bar channel‐fill deposits, presents interesting environment for studying fluid flow heterogeneous formations. Continual sampling carried out during first month CO injection. Two...
Abstract Faults present potential leakage risks for geological CO 2 storage. To de‐risk a field test injecting into shallow fault, laboratory sand tank fluid flow experiments were conducted prior to injection. The vertical 2.5D analog models constructed with different grain sizes of glass beads represent the permeability contrast between formation layers. A variety fluids also used both injection gaseous and supercritical . Experimental results have validated simulation in terms migration...
Carbon Capture and Storage (CCS) is a technology for mitigating emissions from large point-source industries. In addition to the primary role of reducing carbon dioxide (CO2) in atmosphere, CCS forms basis two large-scale negative technologies by coupling geologic CO2 storage with bioenergy (BECCS) direct air capture (DACCS). Despite its inclusion within United Nations Framework Convention on Climate Change (UNFCCC), has been largely unsupported UNFCCC delegates because association fossil...
The risk of CO2 and brine leakage to environmental receptors is one the main concerns associated with geologic storage. Legacy wells oil gas activities are abundant may be found within area review some storage projects. If legacy present a project area, they will require constant surveillance ensure properly completed plugged prevent fluid transmission. Hence, deployment an efficient monitoring system for early detection from failed imperative mitigate financial risks.The objective our study...
Faults present potential leakage risks for geological CO2 storage. To better understand flow through high-permeability faults, a controlled release field experiment was conducted at the Otway International Test Centre injecting into shallow fault known as Brumbys Fault. de-risk this test and to complement simulation results, laboratory sand tank fluid experiments were prior injection. The vertical 2D analog models constructed with different grain sizes of glass beads represent permeability...
This paper describes a new technique for vadose zone monitoring above CCUS sites, its use as response tool to landowner concerns about CCUS, and wider implications at sites. The process- based method uses ratios of coexisting gases (CO2, O2, N2 CH4) distinguish promptly leakage signal from natural CO2 without the background monitoring. was applied Kerr farm, site alleged IEAGHG Weyburn-Midale Monitoring Storage Project (WMP) reservoir showed that no had occurred. These results agreed with...
A key impediment to carbon capture and storage is the cost of CO2 capture, particularly for conventional power plants whose flue gas dominated by gases other than CO2. Waste-gas streams from that use novel technologies (such as oxyfuel, focus this paper) can circumvent step thanks their CO2-rich composition (CO2>90%), but at expense stream purity (N2, O2, Ar, minor species may be present). Relatively high levels must achieved avoid compression complications in pipeline transportation...
Summary An early field project of the Southeast Regional Carbon Sequestration Partnership (SECARB) was conducted in Cranfield oil field, western Mississippi. dioxide (CO2) injected into coarse-grained fluvial deposits Cretaceous lower Tuscaloosa formation, forming a gentle anticline at depths 3300 m. CO2 injection started July 2008, increasing to 23 wells (as May 2011), with total rates greater than 1 million tons/yr. Focused monitoring programs deep subsurface and near surface have been...
This study presents a regional assessment of CO2-solubility trapping potential (CSTP) in the Texas coastal and offshore Miocene interval, comprising lower, middle, upper sandstone. Duan's solubility model [Duan et al. Mar. Chem. 2006, 98, 131−139] was applied to estimate carbon content brine saturated with CO2 at reservoir conditions. Three approaches (simple, coarse, fine) were used calculate CSTP. The CSTP area varies from 30 Gt 167 Gt. Sensitivity analysis indicated that is most sensitive...