Petroleum Science >2011,??Issue 4:??433-445 DOI: https://doi.org/10.1007/s12182-011-0161-x
Fractured reservoir modeling by discrete fracture network and seismic modeling in the Tarim Basin, China Open?Access
文章信息
Laboratory for Integration of Geology & Geophysics, China University of Petroleum, Beijing 102249, China;Research Institute of Exploration & Development, PetroChina Tarim Oilfield Company, Korla 841000, China;Research Institute of Exploration & Development, PetroChina Tarim Oilfield Company, Korla 841000, China;Laboratory for Integration of Geology & Geophysics, China University of Petroleum, Beijing 102249, China;Laboratory for Integration of Geology & Geophysics, China University of Petroleum, Beijing 102249, China;Laboratory for Integration of Geology & Geophysics, China University of Petroleum, Beijing 102249, China
文章摘要
the prediction of this type of reservoir is challenging. Due to the complicated fracture system in the Tarim Basin, the conventional AVO inversion method based on HTI theory to predict fracture development will result in some errors. Thus, an integrated research concept for fractured reservoir prediction is put forward in this paper. Seismic modeling plays a bridging role in this concept, and the establishment of an anisotropic fracture model by Discrete Fracture Network (DFN) is the key part. Because the fracture system in the Tarim Basin shows complex anisotropic characteristics, it is vital to build an effective anisotropic model. Based on geological, well logging and seismic data, an effective anisotropic model of complex fracture systems can be set up with the DFN method. The effective elastic coeffi cients, and the input data for seismic modeling can be calculated. Then seismic modeling based on this model is performed, and the seismic response characteristics are analyzed. The modeling results can be used in the following AVO inversion for fracture detection.
关键词
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Fractured reservoir, Discrete Fracture Network (DFN), equivalent medium, seismic modeling, azimuth-angle gathers