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Azimuthal Sonic ImagingNormal access

Authors: J.B.U. Haldorsen, W. Borland, H.A.B. Al Rougha, A. Sultan and R. Meehan
Event name: 67th EAGE Conference & Exhibition
Session: Wellbore Data Acquisition and Interpretation
Publication date: 13 June 2005
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 721.65Kb )
Price: € 20

Summary:
I017 Z-99 Azimuthal Sonic Imaging Abstract We have developed a method for generating 3D images from sonic full-waveform data. The data were acquired using the Schlumberger Dipole Sonic Imager (DSI�) tool consisting of four sets of hydrophone receivers arranged around the perimeter of the tool. Each of the four receiver banks consists of eight hydrophones placed along the borehole at ½ ft intervals. After applying adaptive noise cancellation filters and wavefield migration we obtain one image each centered on the corresponding set of azimuthal receivers. A 3D image of the formation is formed by applying spatial shifts dependent on the


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