SEISDIP: Dip and Azimuths from 3 Component Vertical Seismic Profiles (3C -VSP).

Abstract : SEISDIP TM : Dip and Azimuths from 3 Component Vertical Seismic Profiles (3C -VSP). 3C ( 3 components) oriented with a hardwave device and 3C isotropic recording of the VSP tool. 3C isotropic processing resulting in P-wave polarization measurement of relected events, P-P or P-S. Improved VSP interpretation from oriented 3C relatively to standard 1C VSP processing. Applications: Rig-source VSP, all borehole, especially in complex structural context; O-VSP, VI-VSP, 2D walkaways;3D-VSP SEISDIP TM : IFP trademark VSP surveys are commercially recorded with a single zero-offset source position and with a downhole tool including 3 orthogonal seismic sensors. For VSP acquisition in vertical wells, a hardware orientation accessory needs to be combined with the VSP tool. An “isotropic” processing of the oriented 3 Components (3C) VSP data is necessary, meaning that all the processing operations are identically applied on the 3 components at any seismic time, ensuring the following benefits: The illumination of seismic reflectors is achieved in 3 Dimensions, with information about their dip and azimuth. 3C VSP yields the structural dip of seismic interfaces from the borehole up to distances of several hundred metres away from the well, even if the reflectors do not intersect the well, or are located below the well. A 3C VSP can be recorded in any well, cased or open hole. In contrast, dip/azimuth from borehole wall imaging tools relate to sedimentary dips within centimetres away from the well bore, and can be recorded in open hole only.
Type de document :
Poster
AAPG Annual Convention, Denver, Colorado, Article #90906©2001, Jun 2006, DENVER, Colorado, United States. 2015, 〈http://aapg.geoscienceworld.org/〉
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https://hal-ifp.archives-ouvertes.fr/hal-01171298
Contributeur : Charles Naville <>
Soumis le : mercredi 8 juillet 2015 - 10:53:47
Dernière modification le : vendredi 10 juillet 2015 - 01:06:55
Document(s) archivé(s) le : vendredi 9 octobre 2015 - 10:06:35

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Charles Naville, Sylvain Serbutoviez, Josette Bruneau, Alexandre Throo, Hubert Japiot, et al.. SEISDIP: Dip and Azimuths from 3 Component Vertical Seismic Profiles (3C -VSP). . AAPG Annual Convention, Denver, Colorado, Article #90906©2001, Jun 2006, DENVER, Colorado, United States. 2015, 〈http://aapg.geoscienceworld.org/〉. 〈hal-01171298〉

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