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Abstract

P304 Converted-Wave Velocity Analysis in the Presence of Anisotropy – A Case Study from Shengli Oilfield China Z. Qian* (British Geological Survey) X. Li (British Geological Survey) X. Meng (SinoPec Shengli Oilfield) & L. Bi (SinoPec Shengli Oilfield) SUMMARY The Shengli Ken-71 multi-component seismic data were acquired with digital MEMS (micro-electromechanical system) sensors over a mixed sand and shale sequence in the overburden. This gives rise to serious non-hyperbolic moveout effects in the converted-wave data due to both the asymmetry raypath and the anisotropic effects. Conventional velocity analysis based isotropic methods cannot flatten the moveout. Here we use a four-parameter

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/content/papers/10.3997/2214-4609.201401944
2007-06-11
2020-11-25
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