[1]姚 峰.表面活性聚合物提高采收率微观驱油机理[J].复杂油气藏,2017,(02):76.[doi:10.16181/j.cnki.fzyqc.2017.02.017]
　Yao Feng.The microscopic displacement mechanism of surface-active polymer flooding for improving oil recovery[J].Complex Hydrocarbon Reservoirs,2017,(02):76.[doi:10.16181/j.cnki.fzyqc.2017.02.017]
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表面活性聚合物提高采收率微观驱油机理
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2017年02期
页码:
76
栏目:
油气工程
出版日期:
2017-06-25

文章信息/Info

Title:
The microscopic displacement mechanism of surface-active polymer flooding for improving oil recovery
作者:
姚 峰
中国石化江苏油田分公司石油工程技术研究院,江苏 扬州 225009
Author(s):
Yao Feng
Petroleum Engineering Technology Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China
关键词:
表面活性聚合物 微观模型 残余油 驱油效率
Keywords:
surface-active polymer;  micro-model;  residual oil;  displacement efficiency
分类号:
TE39
DOI:
10.16181/j.cnki.fzyqc.2017.02.017
文献标志码:
A
摘要:
采用微观刻蚀玻板平面模型,对比研究了表面活性聚合物及常规聚合物对水驱后残余油的驱替机理。研究表明,表面活性聚合物对膜状残余油、盲孔残余油具有“推动”和“拖动”作用,提高采收率比常规聚合物高7%左右。传统聚合物通过增加驱替液粘度提高水油流度比,扩大波及体积来提高采收率。表面活性聚合物通过将残余油拉成油滴和油丝、大油滴拉成小油滴和油丝的方式驱动,在渗流过程中又在不同流道中形成更小的油滴,使油更容易被驱替液携带运移。
Abstract:
Using the micro-etching glass visual model,it was carried out comparison study on the mechanisms of residual oil after waterflooding flooded by surface-active polymer and conventional polymer.Results indicated that film-like residual oil and residual oil in dead-end can be pushed and dragged by the surface-active polymer.And then the increased recovery rate of the surface-active polymer is about 7% higher than that of conventional polymer.The conventional polymer can improve the recovery rate by expanding volumetric sweep efficiency and increasing the displacing fluid viscosity which can improve the oil-water mobility ratio.The residual oil was split into oil drops and threads,and the big oil drops were split into small oil drops and threads by the surface-active polymer.And then the oil drops and theads can form even smaller ones,which can pass through various flow channels in the percolation process.Finally,the residual oil can easily be moved and carried by the displacing fluid.

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备注/Memo

备注/Memo:
收稿日期:2017-04-10; 改回日期:2017-05-12。
作者简介:姚峰(1970—),高级工程师,主要从事三次采油、储层改造等技术的研究与应用。E-mail:yaof.jsytj@sinopec.com。
更新日期/Last Update: 2017-06-25