The analysis of seismic response characteristics of weathered crust reservoir based on random medium forward modeling in Tazhong Shunnan area

被引：0
作者：
Song, Guiqiao [1 ]
Ma, Lingwei [1 ]
Li, Zongjie [1 ]
机构：
[1] Exploration and Development Affairs Department, SINOPEC
来源：
Geophysical Prospecting for Petroleum | 2013年 / 52卷 / 03期
关键词：
Forward modeling; Random medium; Seismic response characteristics; Sensitive seismic attributes; Weathered crust reservoir;
D O I：
10.3969/j.issn.1000-1441.2013.03.013
中图分类号：
学科分类号：
摘要：
In view of the problems of the seismic response characteristics recognition and prediction of the Ordovician karst weathered crust reservoir in Tazhong Shunnan area, by using the random medium theory to build the seismic-geology models of the weathered crust fracture-cavity reservoirs, we investigate the kinematic and dynamic characteristics of seismic reflection wavefield from the target reservoirs based on the numerical simulation of the heterogeneous media wave equation, and quantitatively analyze the reservoir property, thickness and location variation influence on the seismic response characteristics of weathered crust reflection interface(T74). Comparing the results of forward modeling, we can conclude it shows low reflection amplitude and low frequency features when the weathered crust top develops reservoirs. On the basis, we select mean square amplitude and instantaneous frequency as optimum attributes which are highly related to the characteristics of weathered crust reservoirs. This conclusion will provide a certain reference basis to the prediction and recognition of reflected characteristics of weathered crust reservoirs in Shunnan area.
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页码：307 / 312
页数：5
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共 12 条
  • [1] Cai C.G., Zhao Y.Y., Gu H.M., Research and application of seismic forward modeling of Triassic reservoir in Tahe oilfield, Journal of Oil and Gas Technology, 30, 3, pp. 92-94, (2008)
  • [2] Zhang X., Shi Y., Gu H.M., Application of forward modeling technology in Yuqi area of Tahe oilfield, Journal of Oil and Gas Technology, 33, 4, pp. 82-87, (2011)
  • [3] Yao Y., Xi X., Regionalized multi-scale random medium model and its wavefield analysis, Geophysical Prospecting for Petroleum, 43, 1, pp. 1-7, (2004)
  • [4] Liu C.Y., Zhu S.W., Wei X.C., Et al., Application of seismic wave forward modeling in random media for carbonate reservoir prediction, Geophysical Prospecting for Petroleum, 49, 2, pp. 133-139, (2010)
  • [5] Zhao Y.Y., Gu H.M., Li Z.J., Et al., The seismic wave field recognition mode of typical geological bodies in the Ordovician in Tazhong area, Journal of Jilin University (Earth Seismic Edition), 40, 6, pp. 1262-1270, (2010)
  • [6] Zhang X.G., Study on seismic response characteristics of carbonate reservoir in Yubei area, Geophysical Prospecting for Petroleum, 51, 5, pp. 493-500, (2012)
  • [7] Xi X., Yao Y., Simulations of random medium model and intermixed random medium, Earth Science (Journal of China University of Geosciences), 27, 1, pp. 67-71, (2002)
  • [8] Ikelle L., Yung S., Daube F., 2-D random media with ellipsoidal autocorrelation function, Geophysics, 58, 9, pp. 1359-1372, (1993)
  • [9] Xi X., Yao Y., Gu H.M., Random cavity medium model and the wave field simulation, Progress in Geophysics, 20, 2, pp. 365-369, (2005)
  • [10] Xi X., Yao Y., Gu H.M., Simulations of random cave medium model, Journal of Huazhong University of Science and Technology (Natural Science Edition), 33, 9, pp. 105-108, (2005)
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