Lee H. Spangler

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A field facility located in Bozeman, Montana provides the opportunity to test methods to detect, locate, and quantify potential CO 2 leakage from geologic storage sites. From 9 July to 7 August 2008, 0.3 t CO 2 day-1 were injected from a 100-m long, *2.5-m deep horizontal well. Repeated measurements of soil CO 2 fluxes on a grid characterized the(More)
[1] We tested the ability of eddy covariance (EC) to detect, locate, and quantify surface CO 2 flux leakage signals within a background ecosystem. For 10 days starting on 9 July 2007, and for 7 days starting on 3 August 2007, 0.1 (Release 1) and 0.3 (Release 2) t CO 2 d À1 , respectively, were released from a horizontal well $100 m in length and $2.5 m in(More)
The U.S. Department of Energy (DOE) has formed a nationwide network of seven regional partnerships to help determine the best approaches for capturing and permanently storing gases that can contribute to global climate change. The Regional Carbon Sequestration Partnerships (RCSPs) are tasked with determining the most suitable technologies, regulations, and(More)
The U.S. Department of Energy (DOE) is the lead federal agency for the development and deployment of carbon sequestration technologies. The Regional Carbon Sequestration Partnerships (RCSPs) are the mechanism DOE utilizes to prove the technology and to develop human capital, stakeholder networks, information for regulatory policy, best practices documents(More)
a r t i c l e i n f o Measurement of spectral reflectance provides a fast and nondestructive method of stress detection in vegetation. In this shallow subsurface CO 2 release experiment to simulate CO 2 leakage of geologically sequestered CO 2 , the radiometric responses of plants to elevated soil CO 2 concentration were monitored using a spectroradiometer.(More)
Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information,(More)
G eophysical monitoring of carbon dioxide (CO 2) injections in a deep reservoir has become an important component of carbon capture and storage (CCS) projects. Until recently, the seismic method was the dominant technique used for reservoir monitoring. In this paper we present a feasibility study of permanent electromagnetic (EM) monitoring of CO 2(More)
  • L. Spangler
  • 2004
The engineering challenges of bringing microsystems products to market are substantially more broad than with conventional microelectronics. Harsh operating conditions and nonstandard materials result in effects not typically of concern for IC designers. Furthermore, supply, process and temperature variations can create significant issues with device(More)
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