Processing seismic data, when prospecting for oil or gas, comprises identifying maxima in energy matrix lying along path in space produced by parabolic Radon transformation, calculating energy matrix along selected path through Radon space

摘要

Processing seismic data to correct dynamic residuals includes making an inversion using a parabolic Radon transformation, calculating an energy matrix along a selected path through the Radon space. Then points of energy maxima in the matrix are determined and only these points are stored. Interpolation is performed between these points and static correction made to fit the data to a parabolic curve. The resulting data is then given a Radon parabolic inversion. Preferred Features: The selected path may lie between maximum and minimum curves. The energy matrix is calculated using a Hilbert transformation. The maxima are identified by their amplitude. Interpolation is linear and uses a polynomial function with nine coefficients.