高含水后期油水微观渗流特征  

MICRO-FLOW CHARACTERISTICS OF THE OIL AND WATER AT THE LATE STAGE OF HIGH WATER CUT

作　　者：林玉保[1] 贾忠伟[1] 侯战捷[1] 袁敏[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2014年第1期70-74,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油股份公司重大科技专项"大庆油田原油4000万吨持续稳产关键技术研究"支撑项目

摘　　要：通过建立平面填砂模型、真实砂岩微观模型实验技术与方法,对高含水后期水驱宏观、微观渗流特征、剩余油分布形态及形成机理进行了阐述。真实砂岩微观模型保持了岩心原有的孔隙结构、岩石黏土矿物分布,微观驱油实验能够很好地描述剩余油分布形态;平面填砂模型较好地诠释了水驱宏观剩余油分布;水驱实验表明油田进入高含水后期,流体流度比增大,水的流动能力增加,含水上升率逐渐减小。Through the establishment of planar sand packed model, real sandstone micro-model experimental tech- nology and method, the macro-micro flow characteristics, distribution states and generation mechanism of the re- mained oil at the late high period of high water cut are described. Real sandstone micro-model can keep the original pore structures of the cores and the mineral distribution of the rock clay, microscopic oil displacing experiment can much better characterize the oil distribution forms of the remained oil ; planar sand packed model has a much better interpretation of the remained oil distribution in the water flooded model; the water flooding experiment shows that when entering the later stage of high water cut, the fluid mobility ratio of the oilfield will increase, the water flow capacity will enhance and the increased rate of the water will gradually lower.

关 键 词：高含水 大型填砂模型 真实砂岩微观模型 剩余油分布 

分 类 号：TE312[石油与天然气工程—油气田开发工程]