Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Jean‐Philippe Montel"'
Autor:
Gilles Lambaré, Jean-Philippe Montel
Publikováno v:
GEOPHYSICS. 84:S437-S447
Common-image gathers are a useful output of the migration process. Their kinematic behavior (i.e., the way they curve up or down) is an indicator of the quality of the velocity model used for migration. Traditionally, when used for migration velocity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::838548521385272129812cef2e15acc2
https://doi.org/10.1190/geo2018-0706.1
https://doi.org/10.1190/geo2018-0706.1
Autor:
Gilles Lambaré, Jean-Philippe Montel
Publikováno v:
GEOPHYSICS. 84:S501-S510
Tomographic ray tracing is the critical step in ray-based tomographic approaches when we need to represent as precisely as possible the wavepaths of the migration. To be able to update velocities from picked information in the migrated domain, one mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::157d56fcf0cec53a808402bf35d4b7c4
https://doi.org/10.1190/geo2018-0707.1
https://doi.org/10.1190/geo2018-0707.1
Autor:
Jean-Philippe Montel, Gilles Lambaré
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
Summary The increasing usage of wave equation and reverse time migration has motivated investigations on new types of common images gathers. Several types of angle domain common image gathers have then been proposed. While they should have the same a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0ee74b10fd651ff5c76e97a3471572e
https://doi.org/10.1190/segam2013-0514.1
https://doi.org/10.1190/segam2013-0514.1
Autor:
Gilles Lambaré, Saverio Sioni, Patrice Guillaume, Anthony Prescott, Jean-Philippe Montel, Gregory Culianez, Xiaoming Zhang
Publikováno v:
SEG Technical Program Expanded Abstracts 2012.
Velocity model building remains a crucial step in seismic depth imaging. A general drawback of conventional tomographic approaches is that the estimated velocity models do not conform enough to the structures. We present several applications of an in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb90b7e3128c0fa98bb1fc0fd346e387
https://doi.org/10.1190/segam2012-0997.1
https://doi.org/10.1190/segam2012-0997.1
Autor:
Abdeljebbar Ladmek, Xiaoming Zhang, J. P. Touré, Nicolas Deladerriere, Sylvain Navion, Jean-Luc Boelle, Didier Lecerf, Patrice Guillaume, Jean-Philippe Montel, Gilles Lambaré, Ahmed Belmokhtar, Anthony Prescott, Serge Zimine
Publikováno v:
12th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 15–18 August 2011.
Summary High-density wide azimuth (WAZ) land surface acquisitions have demonstrated superior imaging capabilities. However, processing of such data exhibits several challenges related to the traditionally poor signal-to-noise ratio of land data and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88d4b1360905c8a8289caecc6b97b4e7
https://doi.org/10.1190/sbgf2011-434
https://doi.org/10.1190/sbgf2011-434
Autor:
Jean‐Philippe Montel, Serge Zimine, Gilles Lambaré, Patrice Guillaume, Jean‐Paul Touré, Nicolas Deladerrière, Xiaoming Zhang, Anthony Prescott, Didier Lecerf, Sylvain Navion, Jean‐Luc Boelle, Ahmed Belmokhtar, Abdeljebbar Ladmek
Publikováno v:
SEG Technical Program Expanded Abstracts 2010.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c814058f6e15720bcd771d509bb98053
https://doi.org/10.1190/1.3513724
https://doi.org/10.1190/1.3513724
Autor:
Matthieu Bulteau, R. Smith, Gilles Lambaré, Patrice Guillaume, Jalila Riyami, Art McCarthy, Jean-Philippe Montel, P. Zwartjes
Publikováno v:
SEG Technical Program Expanded Abstracts 2010.
A step change has been made in seismic imaging when moving from narrow-azimuth (NAZ) imaging to wide-azimuth (WAZ) imaging, mainly because of better illumination and higher fold. Likewise, a wider angular redundancy should help building more realisti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7d3b16b070ae170e3878ea7c2969eb3
https://doi.org/10.1190/1.3513793
https://doi.org/10.1190/1.3513793
Autor:
Nicolas Vidal, Xiaoming Zhang, José Le Moigne, Pierre Mitouard, Jean Philippe Montel, Serge Zimine, Gilles Lambaré, Olivier Leblanc, Tony J. Prescott, Risto Siliqi, Patrice Guillaume
Publikováno v:
SEG Technical Program Expanded Abstracts 2008.
We present a fast turnaround strategy for building depth velocity models from kinematic invariants. Our approach is based on the concept of kinematic invariants describing locally coherent events by their position and slopes in the un-migrated pre-st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f96fb944e9fbb6c7feaef1e8576fbc65
https://doi.org/10.1190/1.3064100
https://doi.org/10.1190/1.3064100