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Characterizing seismic anisotropy in unconsolidated marine clay using 9C VSP data.

Blouin, Martin; Gloaguen, Erwan; Bellefleur, Gilles B.; Pugin, André (2013). Characterizing seismic anisotropy in unconsolidated marine clay using 9C VSP data. In: SEG Technical Program Expanded Abstracts 2013, Houston, États-Unis.

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Résumé

Overburden seismic anisotropy is an active topic as it can distort the seismic response of deep targets. In order to characterize shallow unconsolidated marine clay, a 9C walkaway VSP was conducted in the shale gas area of the St-Lawrence Lowlands, near Montreal, Québec. Assuming transverse isotropy, Thomsen parameters were estimated and used as inputs in a synthetic model. Similarities between synthetic and real data tend to confirm the VTI symmetry hypothesis although some behavior remains unexplained by the model.

Type de document: Document issu d'une conférence ou d'un atelier
Mots-clés libres: anisotropie sismique; argile marine; Basses-Terres du Saint-Laurent
Centre: Centre Eau Terre Environnement
Date de dépôt: 19 nov. 2020 16:29
Dernière modification: 19 nov. 2020 16:29
URI: http://espace.inrs.ca/id/eprint/4036

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