单砂体非均质性定量化描述新方法  

A New Method for Quantitative Description of Single Heterogenous Sandbodies

作　　者：周守信[1] 孙雷[1] 李士伦[1] 徐严波[1] 母长河[2] 孙小东[2] 

机构地区：[1]西南石油学院石油工程学院,四川南充637001 [2]大庆油田有限责任公司第三采油厂

出　　处：《河南石油》2003年第2期1-3,共3页Henan Petroleum

基　　金：油气藏地质及开发工程国家重点实验室开放基金项目 .PLN0 12 6.资助课题

摘　　要：为了提高渗透率的解释精度 ,选择人工神经网络方法建立了储层渗透率解释模型 ,同时 ,为了能够更快地获得准确、稳定的解释模型 ,对BP网络进行了改进 ,编制了自检验遗传神经网络应用程序 ;然后利用改进的人工神经网络建立渗透率解释模型 ,对储层渗透率剖面进行了逐点解释 ,在此基础上进一步结合分形几何学提出了渗透率的韵律维数、韵律角、韵律高等能够更全面、准确描述储层非均质性的概念。The artificial neural network methods are used in building of an interpretative model for reservoir permeability in order to improve the accuracy of permeability interpretation. Meanwhile, the BP network is improved and an application program for self - checking genetic neural networks is written to more rapidly acquire accurate and stable interpretative models. A permeability interpretative model is built by using the modified artificial neural network to perform level - by - level interpretation of reservoir permeability profile. Some new concepts that can describe more accurately the heterogeneity of reservoirs, including rhythmic dimensionality, rhythmic angle and rhythmic height, are presented in combination with fractal geometry.

关 键 词：单砂体 非均质性 定量化描述 新方法 油气藏 储层 渗透率 逐点解释 分形几何学 

分 类 号：TE321[石油与天然气工程—油气田开发工程]