低渗透油田蒸汽复合驱实验研究  

Research on steam combination flooding test in low permeability oilfield

作　　者：孙国明[1] 刘永建[1] 赵法军[1] 赵国[1] 胡绍彬[1] 

机构地区：[1]大庆石油学院教育部重点实验室

出　　处：《大庆石油地质与开发》2007年第5期64-67,71,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：黑龙江省教育厅基金项目(10551Z0002)资助

摘　　要：针对肇源油田渗透率低、储量丰度低、单井产能低的"三低油藏"特点,利用一维管式物理模型,以驱油效率作为各种驱替方式的评价手段,探讨了低渗透油藏蒸汽复合烟道气驱的适应性,确定了合适的开采方式和注入参数。结果表明,高温混合气(气汽比为1∶1)的驱油效果好于250℃蒸汽驱的驱油效果;段塞越大,驱油效率越高,但低于高温混合气(气汽比为1∶1)的连续驱替。In view of low permeability, low reserves abundance and low single well productivity in Zhaoyuan oilfield, the adaptability of steam-fuel gas combination flooding is discussed in this paper with the application of 1D tubing physical model, and oil displacement efficiencies of each drive modes are used to evaluate the drive modes. Based on the research, the feasible development mode and injection parameters are determined. The study results suggest： the oil displacement characteristics of high temperature mixed gas （ gas/steam ration = 1 ： 1 ） are better than those of 250℃ steam flooding; for bigger plug, the oil displacement efficiency is higher but lower than that of high temperature mixed gas （ gas/steam ration = 1 ： 1 ） successive flooding.

关 键 词：肇源油田 低渗透 蒸汽复合驱 采收率 

分 类 号：TE35[石油与天然气工程—油气田开发工程]