文档介绍：年第卷中国石油大学学报匀豢蒲О V0133 No2
2 Journal China Petroleum Apr2009
1673-5005(2009)02-0094-05
注空气泡沫低温氧化工艺提高采收率试验
11112
.中国石油大学石油工程学院,山东东营;性吞锊捎凸こ碳际跹芯吭海幽襄а
摘要:针对中原油田胡块油藏非均质性严重及水驱效果差的现状,对原油一空气泡沫的氧化特性、封堵效果及其影
响因素、驱油效果进行模拟试验研究。结果表明:胡块原油具有较好的氧化活性,温度、压力、含水饱和度与黏土
含量对氧化速率都有影响;空气泡沫的存在对原油静态氧化有一定影响,而对油藏条件下的动态氧化影响不大;气
液比为—、温度越低、压力及岩心渗透率越高时,泡沫稳定性越好,封堵能力越强;空气泡沫驱阶段可提高驱油
效率%一%,适用于非均质严重地层提高原油采收率。
关键词:空气泡沫;低温氧化;封堵能力;提高采收率;非均质性
中图分类号: A
oil air injection low
temperature oxidation process
Jing1uanlWANGRuihelLINWeimin2
(1College Petroleum Engineering China PetroleumDongying257061China
甇 Engineering Institute ofZngyuan,產,
AbstractAimed the performance due serious heterogeneity block Zhongyuan Oilfieldthe
experiments oxidation 瑂猳 and its influence 琣 oil
甌 results the oil block has oxidation activityandthe 琾瑆
and content oxidation rateAir oxidation conditionsbut
has
not significant dynamic fflooding)conditionsTheratio air and foaming a range
the stability and shutoff air foamAndthe stability and shutoff air the
temperature , and increasingAir injection Can oil 13-
24afterwater the —. could effectively improve oil
heterogeneous reservoir
Key 篴 foamlowtemperature 籹猳; oil recoveryheterogeneity
注空气泡沫臀卵趸工艺综合了空气驱与块中高渗轻质油藏,开展注空气泡沫提高采收率机
泡沫驱的优点,气源丰富、成本低,不仅具有传统注理与氧化、封堵及驱油试验研究,以实现封堵高渗层
气作用、烟道气驱与热效应,而且可以封堵高渗层气气/水窜,改善注空气/水开发效果,并为数值模拟及
窜、降低含水率、提