用数值模拟和早期试井资料确定低渗透油藏砂体接触关系的一种方法  

A Method to Ascertain the Contact Relationship on Sand Body in Low Permeability Reservoir by Numerical Simulation and Early Time Well Testing Data

作　　者：杨天龙[1] 程时清[1] 陈建文[2] 赵继勇[2] 马素俊[1] 

机构地区：[1]中国石油大学(北京)教育部石油工程重点实验室,北京昌平102249 [2]长庆油田公司,陕西西安710021

出　　处：《油气井测试》2008年第3期9-11,共3页Well Testing

基　　金：国家863项目"特殊结构井开发油藏工程技术"(合同编号2006AA09Z338)资助

摘　　要：以实际低渗透开发试验区为例,得出纵向非均质性试井概念地质模型,该模型重点描述砂体接触关系。应用数值模拟软件模拟出各种砂体接触关系对应的油井井底压力变化数据,获得多种典型压力导数图版,该图版能极好的反应储层砂体接触关系。将油藏早期油井实测压力导数曲线与模型图版拟合,可以获得实际储层非均质性参数。本文利用商业数值模拟软件进行非均质储层的试井分析,对简化数值试井分析方法进行了有益的探索。Taking example as of a practical low-permeability developing block,a vertical heterogeneity well testing conceptual geology model is achieved which describes the contact relationship of sand body with an emphasis.Using numerical simulation software to simulate the variation pressure data in bottom hole corresponding different kinds of contact relationship of sand body,many typical derivative curves chart are obtained which can describe the contact relationship of sand body of reservoir.By matching the early time reality pressure derivative curves of oil well in reservoir with the model chart,heterogeneity parameters of reservoir can be obtained.applying commercial numerical simulation software to analyze well testing data of heterogeneity reservoir,a useful research for simplifying method about numerical well testing analysis has been done.

关 键 词：数值模拟 低渗透油藏 纵向非均质性 试井解释图版 

分 类 号：TE319[石油与天然气工程—油气田开发工程] TE348