摘要
为了解有水体压力供源的 (或称有边水存在的 )圆形油藏的压力动态变化 ,为小型断块边水油气藏的合理开发提供依据 ,利用网格自动划分技术 ,通过有限元计算解决了均质圆形定压油藏任意井位条件下的不稳定渗流问题 ,得到压力传播过程图 ,提出井位系数的概念 ,计算出井在油藏任意位置时的井底压力随时间变化的理论曲线。通过井在圆形定压油藏中心位置的特殊情况数值解与解析解的对比 ,验证了数值解的正确性。
In order to know pressure change of the developed formation and p ro vide formation data for developing the reservoirs with constant pressure boundar y reasonably,the transient flow should be researched.In this paper,the authors u se the automatic mesh generation technology to solve the transient flow problem in which the well is located in an arbitrary position of the reservoir with cons tant pressure boundary by using the finite element method.The pressure diffusion process is visualized and the well location factor concept is first developed i n this paper.The typical curves of pressure vs time for the well with different well location factors are presented.By comparing numerical results with the ana lytical solutions of the well located in the center of the reservoir with consta nt pressure boundary,the numerical method is verified.
出处
《油气井测试》
2001年第6期1-4,共4页
Well Testing
关键词
渗流
不稳定流动
物质圆形定压油藏
数值解
fluid flow in porous media,transi ent flow,reservoir with constant pressure boundary,numerical solution
