石油学报 ›› 1988, Vol. 9 ›› Issue (1): 51-60.DOI: 10.7623/syxb198801007

• 地质勘探 • 上一篇    下一篇

注化学剂驱油数值模拟(理论部分)

袁士义1, VAN Quy,N.2   

  1. 1. 石油勘探开发科学研究院;
    2. 法国石油研究院
  • 修回日期:1987-05-07 出版日期:1988-01-25 发布日期:2013-07-08

MULTIDIMENSIONAL NUMERICAL SIMULATION OF CHEMICAL FLOODING (PART ONE)

Yuan Shiyi1, VAN Quy,N.2   

  1. 1. Research Institute of Petroleum Exploration & Development;
    2. French Petroleum Institute
  • Revised:1987-05-07 Online:1988-01-25 Published:2013-07-08

摘要:

本文给出了一个多维多相多组分注化学剂(如表面活性剂、醇、聚合物)驱油的数学模型。该模型考虑了化学驱替过程中各种主要的质量转换过程(对流、扩散、液相间质量转换及液固相间转换)及足以适应现场应用的各种边界条件。它可以模拟各种几何形状多孔介质中的多相渗流问题,每一相都可能是一个多组份的混合物。在目前的物化知识条件下,该模型考虑了尽可能多的物化现象及参数影响,模型中毛细数在时间和空间上的分布影响,合宜的相平衡处理,活性剂损失及来自实验的其它物化资料的处理等,使得它有别于其它模型,这使它更能正确地描述现实问题。它可被用来模拟解释实验室试验结果,进行机理性研究,优选注入化学剂段塞组份和尺寸等,也可用于模拟现场条件下注化学剂驱油过程。预测驱油特性及各参数的影响,解决各种实际问题。

关键词: 表面活性剂, 数值模拟, 化学剂, 聚合物, 多孔介质, 质量分数, 数学模型, 边界条件, 界面张力, 组分

Abstract:

A compositional simulator for multidimensional chemical flooding is established. It takes all the main phenomena in the chemical flooding process (convection, diffusion-dispersion, exchanges among liquid phases and liquid-solid system) and boundary conditions suitable for the oilfield applications into consideration. It can simulate multiphase flow problems in porous media with different geometry. Under the present phenomenalogical knowledge condition, as many parameters as possible are involved in this model. It is different from other chemical flooding simulator by considering the following factors: the appropriate processing of phase equilibrium, the effect of capillary number distribution in space and time, the chemical consumptions, and other laboratory measured data, which make the model describing the real problems more correctly. It can be used to interprete laboratory results, study mechanisms of process, optimise the composition and size of the injected chemical slug etc, and can be used to simulate oilfield chemical flooding process, predict flooding performance and effects of various parameters, and also used to solve practical problems.