Method of and apparatus for analyzing data from an electromagnetic survey
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United States of America Patent
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Nov 20, 2012
Grant Date -
Mar 4, 2010
app pub date -
Jan 9, 2008
filing date -
Jan 9, 2007
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Abstract
A method is provided for analyzing data from an electromagnetic survey of a region so as to indicate the presence of a hydrocarbon reservoir. The survey provides vertical magnetic dipole data and electric dipole data, or provides measurement data from which these dipole data may be determined. The amplitude of the vertical magnetic dipole data is determined, optionally after normalising the data with reference date relating to the same region. Similarly, the amplitude of the electric dipole data is determined, optionally after similarly being normalised. The amplitudes are then compared to provide an indication of the likelihood of the presence of hydrocarbons in the region.
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