新疆石油地质 ›› 2003, Vol. 24 ›› Issue (2): 152-154+188.

• 油藏工程 • 上一篇    下一篇

考虑多因素的低渗透岩石相对渗透率

邓英尔1, 刘慈群2, 庞宏伟3   

  1. 1.成都理工大学 油气藏地质及开发工程国家重点实验室,四川 成都 610059;
    2.学院 渗流流体力学研究所,河北 廊坊 065007;
    3.江汉油田研究院,湖北 潜江 433124
  • 收稿日期:2002-05-21 出版日期:2003-04-01 发布日期:2020-09-17
  • 作者简介:邓英尔(1967-),男,湖南邰阳人,博士,副教授,流体力学。联系电话:028-84077952
  • 基金资助:
    成都理工大学青年科学基金(YQN-07)、油气藏地质及开发工程国家重点实验室开放科学基金(PLC01)资助

Calculation of Relative Permeability of Low Permeability Rock with Multiple Factors

DENG Ying-er, LIU Ci-qun, PANG Hong-wei   

  • Received:2002-05-21 Online:2003-04-01 Published:2020-09-17
  • About author:DENG Ying-er (1967-), Male, Doctor, Associate Professor, Fluid Mechanics, State Key Laboratory of Oil/Gas Reservoir and Develop-ment Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, China

摘要: 相对渗透率是制定油气田开发方案的重要基础资料。通常用非稳态流方法测定和用 JBN方法计算它,但未考虑非达西流及毛管力的影响,故只适合于中高渗透岩石达西渗流的情形,且要求非稳态相对渗透率实验驱替速度较高。针对水湿和油湿岩心两种情形 ,分别导出了同时考虑启动压力梯度、毛管力及重力的相对渗透率公式,不受实验驱替速度较高的限制,解决了低渗透岩石非稳态相对渗透率的实验测定和计算方法问题。

关键词: 低渗透储集层, 非达西流, 相对渗透率, 不稳定流动

Abstract: Relative permeability of reservoir is very important for making a development program in an oifield. It is often tested by an unsteady state flow experiment and calculated by JBN method, which is only fit for Darcy flow through medium-high permeability with high velocity of displacement because of taking neither non-Darcy flow nor capillary attraction into account. Formulas of calculating relative permeability with starting pressure gradient, capillary attraction and gravity are derived respectively according to water wet core and oil wet core. The formulas can not be restricted by high experimental displacement velocity. This method can be used to deal with lab determination and calculated method for unsteady state relative permeability of low permeability reservoir.

Key words: low permeability reservoir, non-Darcy flow, relative permeability, unsteady state flow

中图分类号: