A5003021243- CO2 Sequestration and Geologic Interactions
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Methane Hydrates and Related Phenomena
- Concrete and Cement Materials Research
- Tunneling and Rock Mechanics
- Corrosion Behavior and Inhibition
- Groundwater flow and contamination studies
- Enhanced Oil Recovery Techniques
- Hydrogen embrittlement and corrosion behaviors in metals
- Hydrocarbon exploration and reservoir analysis
- High-Temperature Coating Behaviors
- Underground infrastructure and sustainability
- Atmospheric and Environmental Gas Dynamics
- Geological Modeling and Analysis
- Offshore Engineering and Technologies
- Oil and Gas Production Techniques
- Robot Manipulation and Learning
- Muscle activation and electromyography studies
- Integrated Energy Systems Optimization
- Hand Gesture Recognition Systems
- Landfill Environmental Impact Studies
- Polymer Foaming and Composites
- Geothermal Energy Systems and Applications
Pacific Northwest National Laboratory
2019-2024
Government of the United States of America
2022-2024
Battelle
2021-2023
Lawrence Livermore National Laboratory
2022
National Energy Technology Laboratory
2009-2019
United States Department of Energy
2009-2017
The University of Texas at Austin
2008-2013
Carnegie Mellon University
2009
RJ Lee Group (United States)
2009
Society of Petroleum Engineers
2008
Among the various risks associated with CO2 storage in deep geologic formations, wells are important potential pathways for fluid leaks and groundwater contamination. Injection of will perturb reservoir any that penetrate or pressure footprints leakage and/or brine. Well is particular concern regions a long history oil gas exploration because they top candidates sites. This review explores detail ability to retain their integrity against careful examination coupled physical chemical...
Abstract Underground hydrogen storage is a long‐duration energy option for low‐carbon economy. Although research into the technical feasibility of underground ongoing, existing gas (UGS) facilities are appealing candidates technology because their ability to store and deliver natural gas. We estimate that UGS in United States (U.S.) can 327 TWh (9.8 MMT) pure hydrogen. A complete transition would reduce collective working‐gas by ∼75%; however, most (73.2%) could maintain current demand using...
The rate and mechanism of reaction pozzolan-amended Class H cement exposed to both supercritical CO2 CO2-saturated brine were determined under geologic sequestration conditions assess the potential impact degradation in existing wells on storage integrity. pozzolan additive chosen, Type F flyash, is most common used cements for well sealing oil-gas field operations. 35:65 65:35 (v/v) pozzolan−cement blends underwent carbonation. Extrapolation carbonation case suggests a penetration depth...
We present a set of reactive transport experiments in cement fractures. The simulate coupling between flow and reaction when acidic, CO(2)-rich fluids along leaky wellbore. An analog dilute acid with pH 2.0 3.15 was injected at constant rate 0.3 9.4 cm/s into fractured core. Pressure differential across the core effluent were measured to track path evolution, which analyzed electron microscopy after injection. In many restricted within relatively narrow, tortuous channels fracture surface....
On the path to a net-zero-carbon economy, large-scale energy storage will be an essential part of renewable system. Hydrogen generated from or zero-carbon sources has significant potential as medium, by allowing for long-duration and high-capacity storage. At volumes anticipated, however, underground systems likely essential. Much like current natural gas system, hydrogen would provide safe cost-effective complement smaller surface infrastructure. Recently, there been interest in possibility...
Abstract Predicting the flux of CO2 along a leaking wellbore requires model fluid properties and transport leakage pathway. This should accurately represent geometry any discrete pathway, because this strongly affects coupling between geochemical reactions geomechanical response. Validating in advance large-scale sequestration is difficult instances plumes reaching abandoned wells are presently rare. However, natural gas events wellbores can provide insights into conductive pathways...
Sealing of wellbores in geothermal and tight oil/gas reservoirs by filling the annulus with cement is a well-established practice. Failure as result physical and/or chemical stress common problem serious environmental financial consequences. Numerous alternative blends have been proposed for oil gas industry. Most these possess poor mechanical properties, or are not designed to work high temperature environments. This reports on novel polymer-cement composite remarkable self-healing ability...
Wells remain inadequately studied with respect to the probability and rate of leakage in geologic CO2 sequestration. Efforts model reaction-induced along wells have been limited due poorly understood reaction between cement sequestered fluids. Recent work on class H under reservoir conditions has shown a slow rate, even considering timescale interest for sequestration (Kutchko et al. [1]). This observation is consistent -with field scale observations at enhanced oil recovery operation (Carey...
Abstract Sedimentological, morphological, and geochemical characteristics of molar tooth (MT) structures in the ca 2·6 Ga Monteville Formation suggest a new fluid flow model for MT formation: (i) intercalated shales carbonate sands were deposited near to above storm wave base; (ii) sediments cracked, forming an interconnected network cracks that also open pores sand lenses; (iii) waves pumped sea water into crack networks, causing rapid microcrystalline nucleation, Ostwald ripening nuclei,...
Laboratory experiments were conducted to determine the impact of pozzolanic additives on reaction well cement paste under sequestration conditions. Two common blends consisting class H and pozzolan/cement ratios 35:65 65:35 studied CO2 exposure conditions 2200 psi 50 ∘C. Although rate chemical is significantly greater than with neat paste, alteration physical properties not sufficient compromise sealing integrity experiments.
Large-scale geological storage of CO2 is likely to bring plumes into contact with a large number existing wellbores. Wellbores that no longer provide proper zonal isolation establish primary pathway for buoyant CO2-rich phase escape from the intended formation. The hazard leakage along these pathways will depend on rate leakage. Thus useful component risk assessment framework model Predicting flux leaking wellbore requires fluid properties and transport pathway. Leakage enough be concern...
Abstract Large-scale geological storage of CO2 is likely to bring plumes into contact with a large number existing wellbores. The flux along leaking wellbore requires model fluid properties and transport the leakage pathway. pathway in wells that exhibit sustained casing pressure (SCP) analogous rate-limiting part wellbores which may leak. Thus field observations SCP can be used estimate We develop more robust optimization algorithm get best data fit model. Constraints from well construction...
Summary Large-scale geological storage of carbon dioxide (CO2) is likely to bring CO2 plumes into contact with a large number existing wellbores. The flux along leaking wellbore requires model fluid properties and transport the leakage pathway. Knowing range effective permeability faulty cement essential for estimating risk leakage. central premise this paper that pathway in wells exhibit sustained casing pressure (SCP) analogous rate-limiting part any might encounter. Thus, field...
Abstract Determining the spatiotemporal characteristics of natural and induced seismic events holds opportunity to gain new insights into why these occur. Linking seismicity with other geologic, geographic, natural, or anthropogenic factors could help identify causes suggest mitigation strategies that reduce risk associated such events. The nearest‐neighbor approach utilized in this work represents a practical first step toward identifying statistically correlated clusters recorded...
Depleted oil and gas reservoirs have the potential to store an estimated 675 900 gigatones of carbon dioxide (CO2). Such represent a significant resource for long-term geologic CO2 storage (GCS), which is key mitigation strategy reduce atmospheric (Metz et al., 2005). However, relatively high density wells drilled into means that there exists pathways unwanted fluid migration overlying receptors in GCS scenario. Wells, especially fields span many decades exploration production, are often...