摘要
低孔低渗储层的流体性质识别问题一直是测井解释的难点,模糊模式识别无疑是一种较为有效的方法,在分析国内研究现状的基础上,提出了模型建立和判别标准。选用7个赋予不同权值的储层参数,依据模糊识别的隶属函数和最大隶属原则,建立起低孔低渗地区的油层和水层标准模型。并应用此模型,对该区域的部分井段进行了重新解释,符合率较原解释结论相比有所提高,取得了很好的效果。
How to identify the fluid is still difficult to the well-logging interpreters.On base of the analysis of fuzzy recognition applications in our country,the author sets up a new way of fuzzy mathematics.According to membership function and maximum subordination principle,this paper establishes a mathematics model to identify fluid in low porosity and low permeability area by using seven basic reservoir parameters with different weight.With this method,logging data in this oilfield has been reprocessed.And the interpretation agreement rate increases compared with the original interpretation.
出处
《断块油气田》
CAS
2007年第3期79-81,共3页
Fault-Block Oil & Gas Field
关键词
模糊识别
隶属函数
低孔低渗
油水层识别
fuzzy recognition,membership function,low porosity and low permeability,water and oil zone identification.
