Shifted-elliptical nonstretch moveout correction of wide-angle seismic data in the τ-p domain, using an example from the Faeroe-Shetland Basin

Autor:	Satish C. Singh, Hassan Masoomzadeh, Penny Barton
Rok vydání:	2012
Předmět:	Data set Geophysics Geochemistry and Petrology Normal moveout Reflection (physics) Ellipse Residual Geodesy Geology Domain (mathematical analysis) Hyperbola Image (mathematics)
Zdroj:	GEOPHYSICS. 77:B227-B236
ISSN:	1942-2156 0016-8033
Popis:	We developed a method of moveout correction in the [Formula: see text] domain to tackle some of the problems associated with processing wide-angle seismic reflection data, including residual moveout and normal-moveout stretching. We evaluated the concept of the shifted ellipse in the [Formula: see text] domain as an alternative to the well-known concept of the shifted hyperbola in the [Formula: see text] domain. We used this shifted-ellipse concept to address the problem of residual moveout caused by vertical heterogeneity in the subsurface. We also addressed the stretching problem associated with dynamic corrections by combining selected strips from a set of constant-moveout stacks generated using a shifted-ellipse equation. Application of this method to a wide-angle data set from the Faeroe-Shetland Basin provided an enhanced image of the subbasalt structure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8c4e974f3f97d651517db495dccecc77 https://doi.org/10.1190/geo2011-0303.1 Zobrazit plný text záznamu