Fracture Orientation Detection Using Q Anisotropy
详细信息
- 责任者：Yin Zhiheng (State Key Laboratory for Petroleum Resource and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Wei Jianxin
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(3)
- 关键词：地震勘探 ; seismic exploration ; Q值 ; Q value ; 裂隙 ; cracks
- 页码：p.429-433
- 图表：8 illus., 2 tables, 11 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
Using a seismic physical model, the authors study impact of aligned fractures on Q values of the model, and identify the relationship between fracture orientations and Q value changes. The physical model consists of three layers. The first layer is made of epoxy resin, and the third layer is made of mixed material. The second layer is a bakelite layer, simulating HTI media with aligned vertical fracture. 2D data of three lines from different directions were acquired using the pulse-transmission method with the physical model submerged in a water tank. According to the experiment analysis, Q of vertical fractured layer changes versus azimuth, where the biggest of Q value appears in the direction parallel to the fracture orientation and the smallest in the normal direction to the fracture orientation. This would be helpful for the fracture orientation detection.
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