Inversion of Electro Log Data and Simulation of Dynamic Mud-Filtrate Invasion for Low Resistivity Reservoirs

详细信息   

• 责任者：Wang Xiaochang （School of Geo-Resource and Information ; China University of Petroleum ; Dongying 257061 ; China） ; Deng Shaogui
• 刊名：Computing Techniques for Geophysical and Geochemical Exploration
• 出版年：2008
• 卷期：30(4)
• 关键词：油藏 ; oil reservoirs ; 电磁测井 ; electromagnetic logging
• 页码：p.278-281
• 图表：5 illus., 10 refs.
• 分类号：1600
• issnNo：ISSN1001-1749
• isbnNo：CN51-1242/P

摘要

///The invasion of high-salinity mud is one of the most important factors to the formation with a low resistivity. The longer the time when the reservoir soaks in the mud, the greater the logging data were influenced, even resulting in interpreting mistake or oil layer loss. The electro logs were preprocessed on the basic of minimum mean square inversion principle. Also the dynamic electro logs were numerically simulated on the basis of multi-phase seepage flow theory and convection-diffusion theory. The characteristics of dynamic invasion could be more accurate provided by the combination of the two, and then true formation resistivity and fluid saturation were acquired.