[1]刘丽丽ab,王立辉,宋华c,等.微孔道残余油膜的驱替机理[J].新疆石油地质,2019,(04):460.[doi:10.7657/XJPG20190410]
 LIU Liliab,WANG Lihui,SONG Huac,et al.Displacement Mechanism Analysis of Residual Oil Film in Micro-Channels[J].Xinjiang Petroleum Geology,2019,(04):460.[doi:10.7657/XJPG20190410]
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微孔道残余油膜的驱替机理()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2019年04期
页码:
460
栏目:
出版日期:
2019-07-23

文章信息/Info

Title:
Displacement Mechanism Analysis of Residual Oil Film in Micro-Channels
文章编号:
1001-3873(2019)04-0460-04
作者:
刘丽丽1a1b 王立辉2宋华1c李坤1a1b王佳博1a1b
(1.东北石油大学 a.石油工程学院;b.提高采收率教育部重点实验室;c.化学与化工学院,黑龙江 大庆 163318;2.中国石油 大庆石油管理局有限公司 装备制造分公司,黑龙江 大庆 163255)
Author(s):
LIU Lili1a1b WANG Lihui2 SONG Hua1c LI Kun1a1b WANG Jiabo1a1b
(1.Northeast Petroleum University, a.School of Petroleum Engineering; b.MOE Key laboratory of EOR; c.Chemistry and Chemical Engineering School, Daqing, Heilongjiang 163318, China; 2.Equipment Manufacturing Company, Daqing Petroleum Administration Bureau Co. Ltd, CNPC, Daqing, Heilongjiang 163255, China)
关键词:
驱替机理残余油膜微孔道黏弹性流体流变性
Keywords:
displacement mechanism residual oil film micro-channel visco-elastic fluid rheological property
分类号:
TE357.43
DOI:
10.7657/XJPG20190410
文献标志码:
A
摘要:
以微孔道残余油膜为例,分析残余油膜润湿滞后现象发生后,岩石壁面施加在油膜上的阻力、驱替液与残余油膜间的界面张力和驱替液作用在残余油膜上的水平应力,探索微孔道残余油膜的驱替机理。结合连续性方程、运动方程和黏弹性流体的本构方程,数值模拟计算不同流变性的驱替液作用在残余油膜上水平应力的分布。研究结果表明:增大作用在油膜上的水平应力才能从根本上将油膜激活成为可动油,在驱替液流量不变的条件下,黏弹性流体作用在油膜上水平应力的大小和方向均发生了变化,正是由于其弹性的存在,改变了残余油膜的受力规律,更有利于油膜的激活。
Abstract:
In order to analyze the displacement mechanism of residual oil film in micro-channels, taking micro-channel residual oil film as an example, the paper analyzes the resistance acting on the residual oil film by rock wall, the interfacial tension between displacement fluid and residual oil film and the horizontal force on the residual oil film by displacement fluid after residual oil film wetting hysteresis occurring, and discusses the displacement mechanism of the residual oil film. Combined with continuity equation, motion equation and constitutive equations of visco-elastic fluid, numerical simulation is carried out to calculate the distribution of the horizontal stress acting on the residual oil film by displacement fluid with different rheological properties. The results show that increasing the horizontal force acting on the oil film can activiate the oil film to become movable oil; under the condition that the flow rate of the displacement fluid is constant, and the size and direction of the horizontal stress acting on the oil film by visco-elastic fluid will change. The existence of the elasticity can change the force distribution rules acting on the residual oil film and is in favor of the oil film activation
更新日期/Last Update: 2019-07-23