水平井底水锥进室内模拟与突破时间的计算方法  

The Indoor Simulation of Horizontal Bottom Water Coning and Method for Calculating Breakthrough Time

作　　者：吴豹[1] 刘琪[1] 周世忠[1] Wu Bao;Liu Qi;Zhou Shizhong(School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

机构地区：[1]长江大学石油工程学院,武汉430100

出　　处：《工程研究（跨学科视野中的工程）》2017年第3期282-287,共6页JOURNAL OF ENGINEERING STUDIES

摘　　要：针对油藏中水平井底水锥进问题,进行了该过程的室内模拟,分析底水锥进的影响因素。实验设置不同的原油粘度、渗透率、流速,并模拟在有隔层等情况下的底水运动规律。结果表明粘度越大,见水时间越快,且高速开采也是导致水锥的重要原因。隔层在不同位置时对底水锥进的影响不是很明显。为了充分实现室内模拟实际油藏的可行性,通过相似准则将实验参数无量纲化,进行了水锥突破时间的计算,并使得预测所得见水时间与实验结果比较误差小于5.65%。Indoor simulation of bottom water coning is studied to analyze its influence factors.Oil viscosity,permeability and velocity difference are set in the experiment,and the bottom water movement behavior is simulatedunder the condition of interlayer.The results show that the higher the viscosity,the faster the water time.Theposition of interlayer in bottom water coning is irrelevant.For fully simulation of the indoor simulation feasibilityof actual reservoir,the similarity criterion of experimental parameters is dimensionless.The water breakthroughtime is calculated and predicted,and error between the fact and theoretical water breakthrough time is less than5.65%.

关 键 词：水平井 底水锥进 室内模拟 隔层 相似准则 突破时间 

分 类 号：TE349[石油与天然气工程—油气田开发工程]