基于微观可视化实验的减氧空气驱可行性研究  

Feasibility Study of Oxygen-Deficient Air Flooding Based on Microscopic Visualization Experiment

作　　者：杨钊[1] 徐泰喜 宋洋 韩爽 YANG Zhao;XU Taixi;SONG Yang;HAN Shuang(Petroleum Engineering College,Northeast Petroleum University,Daqing 163000,China)

机构地区：[1]东北石油大学石油工程学院

出　　处：《沈阳大学学报（自然科学版）》2019年第6期459-464,共6页Journal of Shenyang University：Natural Science

摘　　要：通过微观可视化驱油实验,以水驱效果为基础,对比了空气驱和泡沫空气驱的驱油效果,重点研究了气驱的驱油效果、洗油效率及波及效率.建立氧化反应数学模型、典型减氧空气驱油藏数值模型,采用分类别分因素研究方法,重点考查地质、开发、原油氧化反应程度等因素对减氧空气驱开发效果的影响,分析了储层渗透率、原始油藏温度、地层厚度、油藏倾角、注采井距、原油黏度、注入气含氧量等对空气驱开发效果的影响规律及影响程度.最终确定减氧空气驱的油藏适用条件,并对减氧空气驱的可行性及优越性进行评价.Through the microscopic visualization flooding experiment,based on the water flooding effect,the oil displacement effect of air flooding and foam air flooding was compared,and the oil flooding effect,oil washing efficiency and sweeping efficiency of the gas flooding were mainly studied.The mathematical model of oxidation reaction and the numerical model of typical oxygen-reducing air-driven reservoirs were established.The research methods of sub-category-based factors were used to focus on the effects of geology,development,and the degree of oxidation reaction of crude oil on the development of oxygen-reduced air flooding.The effects of reservoir permeability,original reservoir temperature,formation thickness,reservoir inclination,injection-production well spacing,crude oil viscosity and oxygen content of injected gas on the development effect of air flooding were analyzed.The applicable conditions of the oxygen-reducing air flooding reservoir were determined,and the feasibility and superiority of the oxygen-reducing air flooding were evaluated.

关 键 词：油气田井开发工程 减氧空气驱 可视化驱油实验 采收率 采出程度 数值模拟 

分 类 号：TE377[石油与天然气工程—油气田开发工程]