汪艳勇
WANG Yanyong

• 1:大庆油田有限责任公司榆树林油田开发有限责任公司

摘要(Abstract)：

为了探索大庆榆树林油田扶杨油层有效动用方法,在Y101区块进行了CO_2驱油试验。通过物理模拟实验和岩心驱替实验等研究了原油与CO_2作用后的参数变化情况,分析了CO_2驱与水驱的渗流特征和驱油效率。结果表明:由于CO_2与原油容易混相,因此降低了界面张力;CO_2能够提高原油的泡点压力、降低原油的黏度;CO_2驱的注入能力和渗流能力都比水驱强,其驱油效率比水驱高17%~35%,水气交替驱的驱油效率比连续CO_2驱高。现场试验效果证实CO_2驱油技术值得推广应用。
In order to search for an effective developing method for Fuyang reservoirs in Daqing Yushulin Oilfield,C02 flooding field test is carried out in Block YlOl.Through the physical simulating experiments,core displacing test and so on,the changes of the parameters after the actions between the crude oil and CO_2 are studied,and moreover the seepage characteristics and displaced efficiency of water and CO_2 floodings are analyzed.The results show that because CO_2 and the crude oil are prone to mix together,the interfacial tension can be easily reduced;CO_2 can increase the bubble point pressure and lower the viscosity of the crude oil;the injection and flow capacities of CO_2 flooding are much stronger than those of water flooding,so the oil displaced efficiency is higher by 17%-35%in detail,the efficiency of WAG is greater than that of CO_2 continuous flooding.The field test effects prove that the technique is worth popularization and generalization.

关键词(KeyWords)： 特低渗透油层;CO_2混相驱;水气交替驱;最小混相压力;细管实验
extra low permeability reservoir;CO_2 miscible flooding;WAG;minimum miscibility pressure(MMP);slim tube test

Abstract:

Keywords:

基金项目(Foundation): “十一五”国家科技支撑计划项目(2006BAB03B06)

作者(Author): 汪艳勇
WANG Yanyong

参考文献(References)：

• [1]李孟涛,单文文,刘先贵,等.超临界二氧化碳混相驱油机理实验研究[J].石油学报,2006,27(3):80-83.
• [2]隋军.发展核心技术强化精细管理不断提高大庆油田开发水平[J].大庆石油地质与开发,2006,25(1):1-4.
• [3]赵国忠,杨清彦,唐文峰,等.大庆长垣外围低渗透油田开发机理[J].大庆石油地质与开发,2009,28(5):126-133.
• [4]李士伦,郭平,戴磊,等.发展注气提高采收率技术[J].西南石油学院学报,2000,22(3):41-45.
• [5]沈平平,廖新维.二氧化碳地质埋存与提高石油采收率技术[M].北京:石油工业出版社,2009:128.
• [6]江怀友,沈平平,卢颖,等.CO_2提高世界油气资源采收率现状研究[J].特种油气藏,2010,17(2):5-10.
• [7]仵元兵,胡丹丹,常毓文,等.CO_2驱提高低渗透油藏采收率的应用现状[J].新疆石油天然气,2010,6(1):36-40.
• [8]程杰成,雷友忠,朱维耀,等.大庆长垣外围特低渗透扶余油层CO_2驱油试验研究[J].天然气地球科学,2008,19(3):402-409.
• [9]计秉玉,王凤兰,何应付.对CO_2驱油过程中油气混相特征的再认识[J].大庆石油地质与开发,2009,28(3):103-109.
• [10]张硕,单文文,张红丽,等.特低渗透油藏CO_2近混相驱油[J].大庆石油地质与开发,2009,28(1):114-117.
• [11]龚蔚,蒲万芬,彭陶钧,等.就地生成二氧化碳技术提高采收率研究[J].大庆石油地质与开发,2008,27(6):104-107.
• [12]谷丽冰,李治平,欧瑾,等.利用二氧化碳提高原油采收率研究进展[J].中国矿业,2007,16(10):66-69.
• [13]路向伟,路佩丽,等.利用非混相驱提高采收率的机理及应用现状[J].石油地质与工程,2007,21(2):58-61.
• [14]马涛,汤达祯,蒋平,等.注CO_2提高采收率技术现状[J].油田化学,2007,24(4):379-383.
• [15]胥洪俊,孙雷,常志强,等.注CO_2提高气藏采收率[J].天然气勘探与开发,2006,29(3):39-41.
• [16]巢忠堂,陈其荣,刘爱武,等.注C0_2提高采收率机理室内研究[J].江汉石油学院学报,2003,25(2):66-67.
• [17]毛振强,陈凤莲.CO_2混相驱最小混相压力确定方法研究[J].成都理工大学学报:自然科学版,2005,32(1):61-64.
• [18]杜建芬,周亮,郭平.鄯勒油田最小混相压力实验研究[J].吐哈油气,2009,14(2):112-114.