克拉玛依油田砾岩油藏水淹控制因素分析  

Analysis of Water Flooding Controlling Factors of Conglomerate Reservoir in Karamay Oil Field

作　　者：赵锐[1] 谭伟 ZHAO Rui;TAN Wei(Exploration Research Institute,Anhui Provincial Bureau of Coal Geology,Hefei 230088,China;Zhanjiang Branch of CNOOC Limited(China),Zhanjiang 524057,China)

机构地区：[1]安徽省煤田地质局勘查研究院,安徽合肥230088 [2]中海石油(中国)有限公司湛江分公司,广东湛江524057

出　　处：《宿州学院学报》2022年第3期46-50,77,共6页Journal of Suzhou University

基　　金：国家重大科技专项大型油气田及媒层气开发子课题(2011ZX05020-009)。

摘　　要：砾岩油藏储层岩性、物性多变、孔隙结构复杂、非均质性严重,导致其在注水开发时注入水波及程度严重不均,油水分布情况也经常发生改变。为有效地评价水淹层,弄清油藏水淹的控制因素,本文从研究区岩石学特征、物性特征和储层微观水驱油实验等方面入手,综合考虑储层性质与注水条件两方面的因素,分三种情况:储层性质相似与注水条件不同、注水条件相似与储层性质不同和储层性质与注水条件都不同,讨论储层水淹的主控因素。结果表明:砾岩油藏在储层性质相似时,通常表现为注水条件越强,水淹程度越高;而在注水条件类似时,则储层物性越好,水淹程度越高。Because of conglomerate reservoir lithology, variable physical properties, complicated pore structures, severe heterogeneity, the flooding water spread degree is severely uneven and the distribution of oil and water is often changed during water flooding development.In order to evaluate the flooded layer effectively and make clear the controlling factors of water flooding, lithological features, physical properties and reservoir microscopic water flooding experiment in the research area are analyzed in this paper.Considering reservoir properties and water conditions, the main controlling factors of reservoir water flooding are discussed from three cases: Reservoir properties are similar and water flooding conditions are different;Water flooding conditions are similar and reservoir properties are diffe-rent;and reservoir properties and water flooding conditions are different.The research shows that when conglomerate reservoir has similar reservoir properties, the better the water-flooding condition is, and the higher the water flooding degree is;while the water-flooding condition is similar, the better the reservoir properties are, and the higher the water flooding degree is.

关 键 词：砾岩油藏 储层特征 水驱油机理 水淹规律 

分 类 号：TE311[石油与天然气工程—油气田开发工程]