期刊
GEOPHYSICS
卷 73, 期 6, 页码 WA113-WA122出版社
SOC EXPLORATION GEOPHYSICISTS
DOI: 10.1190/1.2981184
关键词
carbon compounds; faulting; geomorphology; geophysical fluid dynamics; geophysical techniques; groundwater; inverse problems; radar interferometry; remote sensing by radar
资金
- Office of Basic Energy Sciences
- GEOSEQ
- U. S. Department Distance north [DE-AC02-05CH11231]
Deformation in the material overlying an active reservoir is used to monitor pressure change at depth. A sequence of 11 field estimates allows us to construct a measure of diffusive traveltime throughout a reservoir. The dense distribution of traveltime values means that we can construct an exactly linear inverse problem for reservoir flow properties. Application to interferometric synthetic-aperture radar (InSAR) data gathered over a carbon dioxide (CO2) injection site in Algeria reveals pressure propagation along two northwest-trending corridors. An inversion of the traveltimes indicates the existence of two northwest-trending high-permeability zones. The high-permeability features trend in the same direction as the regional fault and fracture zones. Model-parameter-resolution estimates indicate the features are well resolved.
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