裂缝型储层电成像测井响应三维数值模拟
网络出版日期: 2014-02-05
基金资助
国家重大科技专项“复杂储层油气测井解释理论方法与处理技术”(编号:2011ZX05020-008)和湖北省自然科学基金项目“基于等效岩石单元模型的渗透率测井评价方法研究”(编号:2013CFB396)联合资助
Three-dimensional numerical simulation of electrical imaging logging response in fractured reservoir
Online published: 2014-02-05
何风 , 刘瑞林 , 白亚东 , 任双双 . 裂缝型储层电成像测井响应三维数值模拟[J]. 岩性油气藏, 2014 , 26(1) : 92 -95 . DOI: 10.3969/j.issn.1673-8926.2014.01.014
According to the design principle, structure and logging mode of micro-resistivity image logging instrument, this paper studied the electrical image logging response characteristics to fractured reservoir by three-dimensional finite element method, simulated the logging response changes with the fracture width, fracture extension depth, resistivity contrast and fracture dip, and researched the resolution of the instrument to the two horizontal fractures. The results show that the changes of fracture width and resistivity contrast have obvious influence on the logging response. The logging response to high angle fracture appears obvious asymmetry. If the double horizontal fracture spacing is less than five millimeter, they can not be distinguished. This research result is helpful for using electrical image logging to identify and quantitatively evaluate fracture.
Key words: antcolony algorithm; OTSU algorithm; image segmentation; FMI logging
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