基于实验的水驱后空气泡沫驱替特征研究  

Experimental Study on the Characteristics of Air Foam Displacement After Water Flooding

作　　者：徐顺义 任梓寒 万嘉炜 李乐泓 邬青鑫 辛文宾 胡清萍 Xu Shunyi;Ren Zihan;Wan Jiawei;Li Lehong;Wu Qingxin;Xin Wenbin;Hu Qingping(Petroleum Engineering Institute of Xi’an Petroleum University,Xi’an 710065,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《山东化工》2024年第2期69-72,81,共5页Shandong Chemical Industry

摘　　要：当油田处于特高含水时期时,传统的采油技术无法继续保持高产、稳产,采油速率下降,成本上升。空气泡沫驱替将空气驱替采油技术和泡沫驱替采油技术有机结合在一起,可以很好地解决传统采油后期采收率下降等问题,具有良好的应用前景。利用填砂管装置研究不同渗透率下空气泡沫驱替的渗流场的变化情况。结果表明,渗透率越高,空气泡沫驱替的效果越好;在空气泡沫驱替过程中段塞堵塞会导致压力变化较大;数值模拟显示空气泡沫驱替具有启动、驱替、突破三个阶段,其中驱替阶段为提高采收率的关键阶段。研究结果可以为油田中后期特高含水时,转空气泡沫驱替提供参考。When the oil field is in the period of ultra-high water cut,the traditional oil recovery technology cannot keep high and stable production,the oil recovery rate decreases and the cost increases.Air foam displacement is an organic combination of air displacement oil recovery technology and foam displacement oil recovery technology,which can solve the problems such as the decline of recovery efficiency in the late stage of traditional oil recovery and has a good application prospect.In this paper,the change of seepage field of air foam displacement under different permeability is studied by using sand-filled pipe device.The results show that the higher the permeability,the better the effect of air foam displacement.Plugging in the middle part of the air foam displacement process will lead to great pressure changes.Numerical simulation shows that air foam flooding has three stages:start-up,displacement and breakthrough,and displacement is the key stage of EOR.The research results can provide reference for air foam displacement in the middle and late period of oil field.

关 键 词：空气泡沫驱 填砂管模拟 采收率 驱替特征 数值模拟 

分 类 号：TE341[石油与天然气工程—油气田开发工程]