二氧化碳驱改善油藏开发效果分析  

Research status and application of carbon dioxideoil displacement technology are reviewed

作　　者：马国庆 屈亚光[1,2] 何登辉 雷梦 MA Guo qing;QU Ya guang;HE Deng hui;LEI Meng(College of Petroleum Engineering,Yangtze University,Hubei Wuhan 430100,China;Hubei Key Laboratory of Oil&.Gas Drilling and Production Engineering,Wuhan 430100,China)

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]油气钻采工程湖北省重点实验室,湖北武汉430100

出　　处：《内蒙古石油化工》2022年第10期99-102,共4页Inner Mongolia Petrochemical Industry

基　　金：国家科技重大专项(2016ZX05060-009,2016ZX05060-019);中国石油科技创新基金项目(2020D-5007-0209)。

摘　　要：二氧化碳驱技术现已被众多国内外油田用于现场提高原油采收率。研究二氧化碳驱油机理,对于预防二氧化碳气蹿以及提高油田的开发效率具有重要的意义。结果表明:影响二氧化碳驱油效率的主要影响因素有初始含油饱和度、储层非均质性、注入方式等。对二氧化碳泡沫驱进行调研,其具有高表观粘度、高渗透性、与水接触稳定、与油接触破裂、易于泡沫再生的特点,其以吸附、输出和流动三种状态存在于地下。CO_(2) flooding technology has been used in many domestic and foreign oil fields to enhance oil recovery. It is of great significance to study the mechanism of carbon dioxide flooding for preventing carbon dioxide gas leap up and improving oilfield development efficiency. The microscopic oil displacement mechanism and influencing factors of carbon dioxide flooding are introduced and reviewed. The results show that the main influencing factors of CO_(2) displacement efficiency include initial oil saturation, reservoir heterogeneity and injection mode. The carbon dioxide foam flooding is characterized by high apparent viscosity, high permeability, stable contact with water, rupture with oil and easy foam regeneration. It exists underground in three states: adsorption, output and flow.

关 键 词：二氧化碳 驱油机理 泡沫驱 影响因素 经济效益 

分 类 号：TE348[石油与天然气工程—油气田开发工程]