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- W1982188816 abstract "Abstract: Deviated well is the widely-used drilling well for offshore oil exploration and exploitation is limited by platform. Besides, owing to limited lifetime of drill platforms, simultaneous extraction is popular in exploration, and reservoir's anisotropy problems show up. In order to solve problems like offshore deviated well cross-well seismic sampling design and wave field imaging, this article deduces finite difference equation of anisotropy medium staggered grid, and analyses anisotropy medium's numerical simulation questions in single source excited condition, and its border treatment adopts PML absorption border. On the basis of this, for fault model of deviated well, we adopt staggered grid finite difference reverse time migration imaging technology and do forward modeling and reverse time migration imaging on theoretical model. We have showed the validity of the arithmetic. 0 Introductions In recent 20 years, no matter in theoretical methods or practical production, the resolution of cross-well seismic technology is much higher than that of the conventional ground seismic exploration technology in solving problems of fine structure imaging, reservoir and interlayer fine descriptions, reservoir dynamic monitoring and residual oil and gas predicting. Cross-well seismic technology has drawn extensive attentions in oil exploration and exploitation field, and has been developing rapidly. Concerning of region, onshore cross-well seismic has been replaced gradually by offshore cross-well seismic, and the observation method is changing from conventional vertical well to deviated well. However, during so many years of oil exploration, the change of cross-well reservoir is comparatively large and the anisotropy problem is typical. Always, there are certain problems when adopting conventional anisotropy medium model for forward modeling and wave field imaging. The purpose of this article is to solve the problem of offshore deviated-well cross-well seismic forward modeling and imaging." @default.
- W1982188816 created "2016-06-24" @default.
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- W1982188816 date "2011-05-02" @default.
- W1982188816 modified "2023-09-26" @default.
- W1982188816 title "Deviated Well Cross-well Elastic Wave Forward Modeling And Reverse Time Migration Imaging" @default.
- W1982188816 doi "https://doi.org/10.4043/21796-ms" @default.
- W1982188816 hasPublicationYear "2011" @default.
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