底水碳酸盐岩油藏数值试井模型及其应用  

Numerical well test model of carbonate oil reservoirs with bottom water and its application

作　　者：杨坚[1] 姚军[1] 王子胜[1] 路涛[2] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东东营257061 [2]中国石化集团胜利石油管理局钻井工程技术公司,山东东营257064

出　　处：《油气地质与采收率》2006年第6期63-65,共3页Petroleum Geology and Recovery Efficiency

摘　　要：为了解决有限底水碳酸盐岩油藏的试井解释问题,建立了底水碳酸盐岩油藏三维油水两相数值试井模型,采用不完全LU分解共轭梯度法进行了求解,并分析了油藏中各参数对底水碳酸盐岩油藏试井解释曲线的影响。结果表明,油井到裂缝的距离决定了底水对油井压力影响响应的早晚,底水体积的大小决定了压力导数曲线的下降程度和下降时间的长短。塔河油田底水油藏油井的试井解释结果与地质及生产状态符合程度较高。A well-test model of 3D oil/water two phases for carbonate oil reservoirs with bottom water is established and solved by the incomplete LU decomposition conjugate gradient method. The effect of the reservoir parameters on the well test interpretation curves of the carbonate oil reservoirs with bottom water is analyzed. The results show that: the distance between the fracture and the oil well determines the response time of the influence of bottom water on oil well pressure, and the volume of the bottom water determines the drop degree and the time of the pressure derivative curve. The well test interpretation results of the oil wells in the bottom water oil reservoir of Tahe Oilfield tallies with the geology and production state well.

关 键 词：底水碳酸盐岩油藏 数值试井 油水两相流 

分 类 号：TE353.2[石油与天然气工程—油气田开发工程]