METHOD AND SYSTEM USING WAVE-EQUATION FOR OBTAINING TRAVELTIME AND AMPLITUDE USED IN KIRCHHOFF MIGRATION

Limitations in accuracy and computing power requirements impeding conventional Kirchhoff migration and reverse time migration are overcome by using the wave-equation Kirchhoff, WEK, technique with Kirchhoff migration. WEK technique includes forward-propagating a low-frequency wavefield from a shot l...

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Bibliographische Detailangaben
Hauptverfasser:	WANG, Diancheng, WANG, Ping, HUANG, Hui
Format:	Patent
Sprache:	eng
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Limitations in accuracy and computing power requirements impeding conventional Kirchhoff migration and reverse time migration are overcome by using the wave-equation Kirchhoff, WEK, technique with Kirchhoff migration. WEK technique includes forward-propagating a low-frequency wavefield from a shot location among pre-defined source locations, calculating an arrival traveltime of a maximum amplitude of the low-frequency wavefield, and applying Kirchhoff migration using the arrival traveltime and the maximum amplitude.