Seismic imaging apparatus without edge reflections and method for the same

摘要

A seismic imaging technology for imaging a subsurface structure is provided. The seismic imaging technology is applied to modeling parameters of a wave equation redefined in a new coordinate system resulting from converting space axes into a logarithmic scale. The redefined wave equation is applied to wave inversion or reverse-time migration.

主权项

1. A seismic imaging apparatus comprising:
a processor; a waveform inverter implemented by the processor and configured to obtain a modeling parameter of a wave equation redefined in a new coordinate system as a result of converting space axes into a logarithmic scale; a modeling parameter updater implemented by the processor and configured to minimize a residual function of an error between modeling data and measured data, wherein the modeling data is a solution of the wave equation to which the modeling parameter has been applied and the measured data has been measured by a receiver; and a subsurface structure display configured to display an image of a subsurface structure based on the modeling parameter.