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Datasets of project "CO2: Baseline gathering and monitoring for the North Sea"

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  1. (Table 1) Gravity and pressure within the Sleipner area relative to ones at the reference station in 2002 and 2005

    Nooner, S L; Eiken, Ola; Hermanrud, Christian; Sasagawa, Glenn S; Stenvold, Torkjell; Zumberge, Mark A
    At Sleipner, CO2 is being separated from natural gas and injected into an underground saline aquifer for environmental purposes. Uncertainty in the aquifer temperature leads to uncertainty in the in situ density of CO2. In this study, gravity measurements were made over the injection site in 2002 and 2005 on top of 30 concrete benchmarks on the seafloor in order to constrain the in situ CO2 density. The gravity measurements have a repeatability of 4.3 µGal for 2003 and 3.5 µGal for 2005. The resulting time-lapse uncertainty is 5.3 µGal. Unexpected benchmark motions due to local sediment scouring contribute to...
    (text/tab-separated-values, 240 data points) - 22-abr-2017

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