Journal of Petrochemical Universities ›› 2026, Vol. 39 ›› Issue (3): 48-57.DOI: 10.12422/j.issn.1006-396X.2026.03.006

• Petroleum Engineering • Previous Articles     Next Articles

Study on Oil Displacement Effect of Air Foam Flooding in Heterogeneous Reservoir

Jiaxin CHENG1(), Jinxiang LIU1(), Wenjing HUANG1, Weijia CAO1, Xiaoyan WANG2, Wei WANG2, Xianpei YIN1   

  1. 1.Key Laboratory of Ministry of Education for Enhancing Oil and Gas Recovery,Northeast Petroleum University,Daqing Heilongjiang,163318,China
    2.Oil Production Technology Research Institute,PetroChina Dagang Oilfield Company,Tianjin 300280,China
  • Received:2025-07-15 Revised:2025-09-01 Published:2026-06-25 Online:2026-06-10
  • Contact: Jinxiang LIU

非均质储层空气泡沫驱驱油效果研究

成佳欣1(), 刘进祥1(), 黄文静1, 曹伟佳1, 王晓燕2, 王伟2, 殷贤培1   

  1. 1.东北石油大学 提高油气采收率教育部重点实验室,黑龙江 大庆 163318
    2.中国石油大港油田 采油工艺研究院,天津 300280
  • 通讯作者: 刘进祥
  • 作者简介:成佳欣(2002-),女,硕士研究生,从事提高油气采收率方面的研究;E-mail:2627397465@qq.com
  • 基金资助:
    国家自然科学基金项目(51574086)

Abstract:

In the development process of Block G in Dagang Oilfield, the air foam flooding system exhibits favorable oil displacement performance. However, affected by factors such as foam preparation technology, gas injection volume, gas injection rate and reservoir permeability heterogeneity, gas channeling is prone to occur during oil and gas production. To explore the mechanism of gas channeling in oil reservoirs and its impacts on oil and gas field development, experiments on the oil displacement performance of air foam flooding were conducted using a Brookfield viscometer, gas chromatograph and core flooding apparatus. The experiments investigated the effects of profile control agent types, gas injection modes and reservoir heterogeneity. Corresponding effective technologies for gas channeling control were also proposed. The results show that in the air foam flooding test with heterogeneous models, foam preferentially enters high-permeability layers, which increases seepage resistance and reduces water absorption index, thus achieving excellent effects of water control and oil production enhancement. Compared with conventional air foam flooding, the injection of Cr3+ polymer gel and hydrophobic associating polymer can effectively restrain gas channeling, and further improve the oil-increasing and water-reducing performance of air foam flooding. When the injection volume of gel plugging agent is 0.20 PV, the maximum increment of oil recovery factor reaches 15.23%; when the injection volume of polymer is 0.30 PV, the maximum increment of oil recovery factor is 11.35%.

Key words: Heterogeneous reservoir, Profile control, Air foam flooding, Oxidation reaction, Increase oil precipitation

摘要:

在大港油田G区块开发过程中,空气泡沫驱油体系具有良好的驱油效果。但是,受泡沫制备工艺、气体注入量、气体注入速率及油藏渗透性差异等因素的影响,在油气开采过程中,易发生气窜现象。为探索油藏气窜现象的发生机制及其对油气田开发的影响,利用布氏黏度计、气相色谱仪和岩心驱替装置等开展了调剖剂类型、注气方式和油藏非均质对空气泡沫驱驱油效果实验研究,并提出有效的气窜治理技术。结果表明,在非均质模型空气泡沫驱过程中,泡沫率先进入模型高渗透层,引起渗流阻力增加和吸水指数减小,取得较好的控水增油效果;与普通空气泡沫驱相比,注入调剖剂Cr3+聚合物凝胶和疏水缔合聚合物实现对空气泡沫气窜的治理,空气泡沫驱增油降水效果均得到提升;当凝胶堵剂注入量为0.20 PV时,采收率增幅最高可达15.23%,聚合物注入量为0.30 PV时,采收率增幅最高为11.35%。

关键词: 非均质储层, 调剖, 空气泡沫驱, 氧化反应, 增油降水

CLC Number: 

Cite this article

Jiaxin CHENG, Jinxiang LIU, Wenjing HUANG, Weijia CAO, Xiaoyan WANG, Wei WANG, Xianpei YIN. Study on Oil Displacement Effect of Air Foam Flooding in Heterogeneous Reservoir[J]. Journal of Petrochemical Universities, 2026, 39(3): 48-57.

成佳欣, 刘进祥, 黄文静, 曹伟佳, 王晓燕, 王伟, 殷贤培. 非均质储层空气泡沫驱驱油效果研究[J]. 石油化工高等学校学报, 2026, 39(3): 48-57.