Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams
Fractured reservoirs account for a majority of the oil production worldwide and often have low recovery rate. Fracture characterization is important in building reservoir flow models for enhanced oil recovery. Information about fracture orientation, fracture spacing, and fracture compliances is esse...
| Main Authors: | , , |
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| Format: | Technical Report |
| Language: | en_US |
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Massachusetts Institute of Technology. Earth Resources Laboratory
2014
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| Online Access: | http://hdl.handle.net/1721.1/90533 |
| _version_ | 1826200766384177152 |
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| author | Zheng, Yingcai Fang, Xinding Fehler, Michael |
| author2 | Massachusetts Institute of Technology. Earth Resources Laboratory |
| author_facet | Massachusetts Institute of Technology. Earth Resources Laboratory Zheng, Yingcai Fang, Xinding Fehler, Michael |
| author_sort | Zheng, Yingcai |
| collection | MIT |
| description | Fractured reservoirs account for a majority of the oil production worldwide and often have low recovery rate. Fracture characterization is important in building reservoir flow models for enhanced oil recovery. Information about fracture orientation, fracture spacing, and fracture compliances is essential. When a fracture network consisting of multiple sets of fractures with variable fracture spacing/orientation is present, we have to determine the spatial information about them as this may represent important connectivity information for fluid flow. We present a seismic method that can achieve the above goals in the context of seismic scattering, when the fracture spacing is on the order of half of the wavelength. The method is based measuring the beam interference pattern for two Gaussian beams focused on a fractured reservoir location, one beam from the sources and the other from the receivers. Numerical examples show that our method can provide spatially dependent information on fracture parameters. |
| first_indexed | 2024-09-23T11:41:25Z |
| format | Technical Report |
| id | mit-1721.1/90533 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:41:25Z |
| publishDate | 2014 |
| publisher | Massachusetts Institute of Technology. Earth Resources Laboratory |
| record_format | dspace |
| spelling | mit-1721.1/905332019-04-11T09:46:09Z Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams Zheng, Yingcai Fang, Xinding Fehler, Michael Massachusetts Institute of Technology. Earth Resources Laboratory Fractures Inversion Modeling Fractured reservoirs account for a majority of the oil production worldwide and often have low recovery rate. Fracture characterization is important in building reservoir flow models for enhanced oil recovery. Information about fracture orientation, fracture spacing, and fracture compliances is essential. When a fracture network consisting of multiple sets of fractures with variable fracture spacing/orientation is present, we have to determine the spatial information about them as this may represent important connectivity information for fluid flow. We present a seismic method that can achieve the above goals in the context of seismic scattering, when the fracture spacing is on the order of half of the wavelength. The method is based measuring the beam interference pattern for two Gaussian beams focused on a fractured reservoir location, one beam from the sources and the other from the receivers. Numerical examples show that our method can provide spatially dependent information on fracture parameters. Massachusetts Institute of Technology. Earth Resources Laboratory (Founding Members Program) 2014-10-02T15:14:44Z 2014-10-02T15:14:44Z 2013 Technical Report http://hdl.handle.net/1721.1/90533 en_US Earth Resources Laboratory Industry Consortia Annual Report;2013-10 application/pdf Massachusetts Institute of Technology. Earth Resources Laboratory |
| spellingShingle | Fractures Inversion Modeling Zheng, Yingcai Fang, Xinding Fehler, Michael Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams |
| title | Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams |
| title_full | Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams |
| title_fullStr | Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams |
| title_full_unstemmed | Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams |
| title_short | Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams |
| title_sort | seismic characterization of reservoirs with variable fracture spacing by double focusing gaussian beams |
| topic | Fractures Inversion Modeling |
| url | http://hdl.handle.net/1721.1/90533 |
| work_keys_str_mv | AT zhengyingcai seismiccharacterizationofreservoirswithvariablefracturespacingbydoublefocusinggaussianbeams AT fangxinding seismiccharacterizationofreservoirswithvariablefracturespacingbydoublefocusinggaussianbeams AT fehlermichael seismiccharacterizationofreservoirswithvariablefracturespacingbydoublefocusinggaussianbeams |