摘要
温室气体(CO2)驱油及埋存技术寻找出传统化石能源开发与环境保护的重合点,既实现了CO2的捕集与利用,又使实施区域的原油采收率提高,在经济与环境保护上展现出共赢。SX油田为有效动用油层及实现温室气体埋存,开展了CO2气驱目标地层原油细管实验,分析了在地层温度恒定地层压力不同的条件下CO2驱油效率变化规律。实验结果表明:原油采收率随着注CO2气量的增加而增加;在同等注气量条件下,原油采收率随着实验压力的升高而升高。CO2细管实验最小混相压力为46.05 MPa,高于原始地层压力7.72 MPa,呈现出非混相驱特征。
Greenhouse gas(CO2)flooding and storage technology finds the overlap point of traditional fossil energy development and environmental protection,which not only realizes the replenishment and utilization of CO2 gas,but also improves the oil recovery in the implementation area,it show a win-win situation in economy and environmental protection.In order to effectively produce oil reservoirs and realize greenhouse gas storage,SX Oilfield was carried out CO2 gas flooding target formation crude oil slim tube experiment,and analyzed the CO2 flooding efficiency changes under the conditions of constant formation temperature and different formation pressures.The experimental results showed that the oil recovery factor increases with the increase of CO2 gas injection;under the same gas injection condition,the oil recovery factor increases with the increase of experimental pressure.The CO2 slim tube experiment had a minimum miscible pressure of 46.05 MPa,which was higher than the original formation pressure of 7.72 MPa,showing immiscible flooding characteristics.
作者
马庆
侯思伟
吕蓓
陈亮
宋胜军
Ma Qing;Hou Siwei;Lü Bei;Chen Liang;Song Shengjun(Karamay Vocational and Technical College,Karamay 834000,China;Xinjiang Oilfield Company,Karamay 834000,China)
出处
《能源与环保》
2020年第9期37-40,44,共5页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
新疆维吾尔自治区自然科学基金资助项目(2018D01B40)。
关键词
温室气体
细管实验
CO2
原油采收率
greenhouse gases
slim-tube experiment
CO2
oil recovery factor
