Influence Factors of Stoneley Wave and Permeability Inversion of Formation
详细信息
- 责任者：Xu Xiaokai (School of Geosciences ; China University of Petroleum ; Qingdao 266580 ; China) ; Chen Xuelian
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(2)
- 关键词：地震勘探 ; seismic exploration ; 反演问题 ; inverse problem ; 斯通利波 ; stoneley waves
- 页码：p.97-104
- 图表：4 illus., 18 refs.
- 分类号：1600
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
The influence factors of Stoneley wave were researched based on the theory of porous media acoustics.The effect of different factors on the phase velocity and attenuation of Stoneley wave was analysed systematically.After the sensitivity analysis using forward modeling,a method of borehole fluid calibration was proposed.Through a new derivation of the transfer matrix of Stoneley wave forward simulation under different borehole diameter conditions,the transfer matrix was established as a function of logging interval length.On this basis,combining with the permeability calculation methods through the amplitude and phase of Stoneley wave,the permeability of formation was calculated with the simulated annealing algorithm.It can be seen that the larger permeability,the more reliable the results.
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