Search Results - "Pawar, Rajesh J"

Phase-based design of CO2 capture, transport, and storage infrastructure via SimCCS3.0 by Ma, Zhiwei, Chen, Bailian, Pawar, Rajesh J.

“…The design of optimal infrastructure is essential for the deployment of commercial and large-scale carbon capture and storage (CCS) technology. During the…”
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Characterization of CO2 storage and enhanced oil recovery in residual oil zones by Chen, Bailian, Pawar, Rajesh J.

“…Residual oil zones (ROZs) are reservoirs in which oil is swept over geologic time period and exists at residual saturation. The oil in such reservoirs cannot…”
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A gradient-based deep neural network model for simulating multiphase flow in porous media by Yan, Bicheng, Harp, Dylan Robert, Chen, Bailian, Hoteit, Hussein, Pawar, Rajesh J.

“…Simulation of multiphase flow in porous media is crucial for the effective management of subsurface energy and environment-related activities. The numerical…”
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Geologic CO2 sequestration monitoring design: A machine learning and uncertainty quantification based approach by Chen, Bailian, Harp, Dylan R., Lin, Youzuo, Keating, Elizabeth H., Pawar, Rajesh J.

“…•Filtering-based data assimilation method is developed to perform monitoring design.•Machine learning is used to reduce computational cost of data assimilation…”
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Improving deep learning performance for predicting large-scale geological CO2 sequestration modeling through feature coarsening by Yan, Bicheng, Harp, Dylan Robert, Chen, Bailian, Pawar, Rajesh J.

“…Physics-based reservoir simulation for fluid flow in porous media is a numerical simulation method to predict the temporal-spatial patterns of state variables…”
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Simulation of Gravitational Instability and Thermo‐Solutal Convection During the Dissolution of CO 2 in Deep Storage Reservoirs by Singh, Mrityunjay, Chaudhuri, Abhijit, Stauffer, Philip H, Pawar, Rajesh J

“…The temperature of deep hydrothermal sedimentary reservoirs varies between 50 and 250 °C, while the temperature of injected CO 2 can be much below the…”
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Simulation of Gravitational Instability and Thermo‐Solutal Convection During the Dissolution of CO2 in Deep Storage Reservoirs by Singh, Mrityunjay, Chaudhuri, Abhijit, Stauffer, Philip H, Pawar, Rajesh J

“…The temperature of deep hydrothermal sedimentary reservoirs varies between 50 and 250 °C, while the temperature of injected CO2 can be much below the reservoir…”
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Significance of carbonate buffers in natural waters reacting with supercritical CO2: Implications for monitoring, measuring and verification (MMV) of geologic carbon sequestration by Newell, Dennis L., Kaszuba, John P., Viswanathan, Hari S., Pawar, Rajesh J., Carpenter, Thomas

“…Successful geologic sequestration of carbon in deep saline aquifers requires accurate predictive models of rock‐brine‐CO2 interaction. Often overlooked in…”
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Improving deep learning performance for predicting large-scale geological [Formula: see text] sequestration modeling through feature coarsening by Yan, Bicheng, Harp, Dylan Robert, Chen, Bailian, Pawar, Rajesh J

“…Physics-based reservoir simulation for fluid flow in porous media is a numerical simulation method to predict the temporal-spatial patterns of state variables…”
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Simulation of Gravitational Instability and Thermo‐Solutal Convection During the Dissolution of CO in Deep Storage Reservoirs by Singh, Mrityunjay, Chaudhuri, Abhijit, Stauffer, Philip H, Pawar, Rajesh J

“…Abstract The temperature of deep hydrothermal sedimentary reservoirs varies between 50 and 250 °C, while the temperature of injected CO can be much below the…”
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The National Risk Assessment Partnership’s integrated assessment model for carbon storage: A tool to support decision making amidst uncertainty by Pawar, Rajesh J., Bromhal, Grant S., Chu, Shaoping, Dilmore, Robert M., Oldenburg, Curtis M., Stauffer, Philip H., Zhang, Yingqi, Guthrie, George D.

“…The US DOE-funded National Risk Assessment Partnership (NRAP) has developed an integrated assessment model (NRAP-IAM-CS) that can be used to simulate carbon…”
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Analysis of evolving capillary transition, gravitational fingering, and dissolution trapping of CO2 in deep saline aquifers during continuous injection of supercritical CO2 by Singh, Mrityunjay, Chaudhuri, Abhijit, Chu, Shaoping P, Stauffer, Philip H, Pawar, Rajesh J

“…•Evolution of ScCO2 and dissolved CO2 plume is modeled for constant CO2 injection rate.•Injection pressure that controls the shape of diffusive layer,…”
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Upscaled discrete fracture matrix model (UDFM): an octree-refined continuum representation of fractured porous media by Sweeney, Matthew R., Gable, Carl W., Karra, Satish, Stauffer, Philip H., Pawar, Rajesh J., Hyman, Jeffrey D.

“…We develop a computational geometry-based upscaling approach to accurately capture the dynamic processes occurring within and between subsurface fracture…”
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A dynamic model for optimally phasing in CO2 capture and storage infrastructure by Middleton, Richard S., Kuby, Michael J., Wei, Ran, Keating, Gordon N., Pawar, Rajesh J.

“…CO2 capture and storage (CCS) is a climate-change mitigation strategy that requires an investment of many billions of dollars and tens of thousands of miles of…”
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Characterizing the Impact of Fractured Caprock Heterogeneity on Supercritical CO2 Injection by Hyman, Jeffrey D., Jiménez-Martínez, Joaquin, Gable, Carl W., Stauffer, Philip H., Pawar, Rajesh J.

“…We present a set of multiphase flow simulations where supercritical CO 2 (scCO 2 ) displaces water at hydrostatic conditions within three-dimensional discrete…”
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Intermediate‐Scale Experimental Study to Improve Fundamental Understanding of Attenuation Capacity for Leaking CO2 in Heterogeneous Shallow Aquifers by Plampin, Michelle R, Porter, Mark L, Pawar, Rajesh J, Illangasekare, Tissa H

“…To assess the risks of Geologic Carbon Sequestration (GCS), it is crucial to understand the fundamental physicochemical processes that may occur if and when…”
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Greening Coal: Breakthroughs and Challenges in Carbon Capture and Storage by Stauffer, Philip H, Keating, Gordon N, Middleton, Richard S, Viswanathan, Hari S, Berchtold, Kathryn A, Singh, Rajinder P, Pawar, Rajesh J, Mancino, Anthony

“…Like it or not, coal is here to stay, for the next few decades at least. Continued use of coal in this age of growing greenhouse gas controls will require…”
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A System Model for Geologic Sequestration of Carbon Dioxide by Stauffer, Philip H, Viswanathan, Hari S, Pawar, Rajesh J, Guthrie, George D

“…In this paper we describe CO2−PENS, a comprehensive system-level computational model for performance assessment of geologic sequestration of CO2. CO2−PENS is…”
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Development of a Hybrid Process and System Model for the Assessment of Wellbore Leakage at a Geologic CO2 Sequestration Site by Viswanathan, Hari S, Pawar, Rajesh J, Stauffer, Philip H, Kaszuba, John P, Carey, J. William, Olsen, Seth C, Keating, Gordon N, Kavetski, Dmitri, Guthrie, George D

“…Sequestration of CO2 in geologic reservoirs is one of the promising technologies currently being explored to mitigate anthropogenic CO2 emissions. Large-scale…”
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Effects of geologic reservoir uncertainty on CO2 transport and storage infrastructure by Middleton, Richard S., Keating, Gordon N., Viswanathan, Hari S., Stauffer, Philip H., Pawar, Rajesh J.

“…► We analyze the effect of geologic reservoir uncertainty on CCS infrastructure. ► Uncertainty impacts sink cost and capacity estimates up to an order of…”
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