低渗透油藏早期试井解释方法研究与应用  

Research of Well Testing Interpretation Method for Early Stage Data in Low Permeability Reservoir and Its Application

作　　者：张洪[1] 李得信[1] 邱金权 王青川[1] 甘常建 刘彦鑫[1] 

机构地区：[1]青海油田测试公司,青海茫崖816499

出　　处：《油气井测试》2015年第3期15-20,75-76,共6页Well Testing

摘　　要：传统的早期试井解释方法多采用Gringarten和Bourdet的典型曲线分析方法,对低渗透油藏长期测试不出现径向流的试井分析效果较差,得到的储层参数多解性强。针对油田独特的地质特征,建立了一个综合的早期试井解释方法系统（压恢数据的特征综合试井解释方法,基于续流量函数的方法,模拟反卷积方法）并将其应用于青海油田2010~2013年间的27口典型试井,验证其对青海油田复杂地质状况的独特适用性和可靠性。其中,压恢数据的特征综合试井解释方法在原有的压降试井特征综合方法的基础上,采用叠加原理进行了创新。该方法的应用提高了测试资料解释的准确率。The Gringarten and Bourdet's Typical Curve Fitting Method is the most widely used in early stage well testing interpretation whose effect is poor for low permeability reservoirs if the radial flow does not appear and more solutions to the formation parameters are got. According to the unique geological characteristics,a comprehensive early stage well testing interpretation methods( pressure build up well test interpretation method,based on the flow function method,simulated deconvolution method) is built up,and applied in 27 typical wells during 2010 ~ 2013 in Qinghai oilfield,that's unique applicability and strong reliability for complex geological condition of Qinhai oilfield is verified. By comparing with the geological information,the results supported the unique applicability and high reliability of the system for low permeability and complex nature reservoirs in Qinghai oilfield. Among them,based on the original pressure drop characteristics of well test synthesis method,the characteristics of pressure restore data comprehensive well test interpretation method is innovated by using the superposition principle. The application of this method improves the accuracy of the test data interpretation.

关 键 词：早期数据 低渗透油藏 叠加原理 特征综合试井分析 函数方法 模拟反卷积 青海油田 

分 类 号：TE353[石油与天然气工程—油气田开发工程]