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Webb, Nathan

Publications and source records attributed to Webb, Nathan.

At least 19 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2024

Mitchell CarbonSAFE

Project update presentation for the 2024 U.S. Department of Energy Fossil Energy and Carbon Management and National Energy Technology Lab Carbon Management Research Project Annual Review Meeting

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2023

Mitchell CarbonSAFE

Project update presentation for the U.S. Department of Energy Fossil Energy and Carbon Management and National Energy Technology Lab Carbon Management Research Project Annual Review Meeting 2023

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2022

Review of Analogous Basins

Sedimentary basins comprise extensive porous sandstone and carbonate reservoirs capable of hosting economically significant greenfield and brownfield residual oil zones (ROZs). Several basins in the United States, including the intracratonic Illinois Basin (ILB), have stacked, predominantly siliciclastic ROZs that are potential targets for tertiary recovery of petroleum and for storing large volumes of anthropogenic carbon in the subsurface. The rocks in these basins share facies and depositional settings with many reservoirs that have already been major producers in primary production and, in some cases, as carbon dioxide enhanced oil recovery (CO 2 -EOR)targets. The lessons learned from field data collection and testing of these intervals in a basin like the ILB have broad applications to analogous basins with potential ROZs.

02 PETROLEUM↗
DOE OSTI2019

Screening and Selection of Illinois Basin ROZs for Resource Assessment

This report summarizes the efforts to screen the seven candidate formations as well as the selection of three formations (Carper Sandstone [part of Borden Siltstone], Tar Springs Sandstone, and Geneva Dolomite/Dutch Creek Sandstone) for further characterization and detailed analysis.

02 PETROLEUM↗
DOE OSTI2019

A Summary of CO2-Enhanced Oil Recovery Options in the Illinois East Sub-Basin

Illinois Basin oil fields have an estimated CO2 storage resource of 140 to 440 million metric tons, 58 to 180 million metric tons of which are in reservoirs with conditions suitable for miscible CO2-EOR (Finley, 2005). Untapped reserves remain locked in established mature oil fields as well as prospective greenfields waiting for development. CO2-EOR recovery in the ILB has the potential to be economically significant by improving oil recovery and providing possible storage of anthropogenic CO2, and CO2-EOR reservoirs could potentially be co-located (stacked) with saline storage options. CO2-EOR interests in the wider region may assist the economics of a storage project long-term, via potential revenue from sale of CO2 for EOR and/or by taking advantage of Carbon Capture and Storage (CCS) tax credits under 26. U.S. Code § 45Q (and 2018 FUTURE Act amendments). Pilot scale injection tests have been performed at a few locations across the ILB with positive indications of oil response, but there have been no field-scale applications of CO2-EOR in the ILB. Enhanced ILB oil field miscibility classification maps show additional reservoir-level detail and help expand the screening area for CO2-EOR opportunities in the East Sub-Basin. Examination of the oil fields and their productive reservoirs revealed the presence of several carbonate and siliciclastic candidates for miscible/near miscible and immiscible CO2-EOR in the East Sub-Basin study area. In addition, related studies have identified and assessed residual oil zones (ROZs) in sandstone and carbonate formations throughout the region. These results and ongoing work highlight key reservoirs in primary fields of interest and provide the basis for targeted oilfield and site-specific work in assessing the feasibility of industrial-scale CO2 storage and CO2-EOR in the Illinois East Sub-Basin study area.

01 COAL, LIGNITE, AND PEAT↗
DOE OSTI2017

Evidence of a Sandy Suspended-Load Dominated River from the Mississippian Cypress Formation, Illinois, USA

Describes how diagnostic sedimentary facies and textures have been identfied by integrating new core and outcrop data, which enabled a new interpretation for the thick sandstones within the Cypress Formation as meandering or anastomosing fluvial deposits. The results provide new insight into the preservation of mesoforms and macroforms under the influence of suspended-load dominated transport as well as implications for the dynamics of Carboniferous continental scale river systems in the Illinois Basin.

Howell, Kalin↗
DOE OSTI2017

Reservoir architecture and heterogeneity of multistory fluvial sandstones of the Mississippian Cypress Formation, Illinois, USA: Implications for CO2 storage and EOR

How detailed characterization, which integrates geologic characterization, well log analysis, and reservoir modeling, provides new insights into the heterogeneity of thick Cypress sandstones, including scales of flow units and controls on variations in permeability that can otherwise appear homogeneous on wireline logs.

Howell, Kalin↗
DOE OSTI2017

Improved Oil Recovery in the Cypress Using an Unconventional Approach

Geologic characterization of the Cypress Sandstone, residual oil zones, well log analysis, and preliminary results from reservoir simulations. Webb presented data from new core collected as part of the project in September 2016. The preliminary simulation results were for the Kenner West Field.

Webb, Nathan↗
DOE OSTI2016

A Nonconventional CO2-EOR Target in the Illinois Basin: Oil Reservoirs of the Thick Cypress Sandstone

The benefits of the project to the US Department of Energy Program, project overview, methodology, and accomplishments to date, such as water saturation profiles developed during petrophysical analysis; isopach maps developed during geologic modeling; and three-dimensional geocellular models that incorporate interpretations of depositional and diagenetic facies developed during geologic modeling.

Webb, Nathan↗