论文详情
低孔低渗储层油水层模糊识别方法
断块油气田
2007年 14卷 第03期
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Title
Identifying o il and water zones using fuzzy
recognitionme thod
Authors
Shen Huilin ,W angM in, Chai Jing
单位
1 中国石油大学地球资源与信息学院, 山东东营257061; 2 胜利石油管理局测井公司, 山东东营257096
Organization
College of Geo - R esources and
Information Technology, China University of P etroleum,
Dongy ing 257061, China
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。
Abstract
How to identify the flu id is still d ifficu lt to the w elllogg
ing interpreters. On base o f the analysis o f fuzzy
recognition applica tions in our country, the autho r sets up a
new way o f fuzzy m athema tics. According to m embership
function and max im um subo rd ina tion princ ip le, this paper
establishes a m athema tics m ode l to identify flu id in low
poro sity and low permeability area by using seven basic
reservo ir param ete rs w ith d ifferent we ight. W ith th is m ethod,
logg ing data in this oilfie ld has been reprocessed. And the
interpretation agreem en t ra te increases com pared w ith the
o rig ina l interpretation.
关键词：
模糊识别 隶属函数 低孔低渗 油水层识别;
Keywords:
fuzzy recognition, m em bersh ip function, low
poro sity and low perm eability, w ater and o il zone
identification.;
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