蒸汽驱油井流入动态研究  

Inflow performance of steam drive wells

作　　者：刘慧卿[1] 张红玲[1] 

机构地区：[1]石油大学,北京昌平102249

出　　处：《特种油气藏》2005年第3期38-41,108,共5页Special Oil & Gas Reservoirs

基　　金：该文受国家自然科学基金项目"稠油热力复合驱的耦合作用与耦合模型"资助(编号:E060709-60276040)

摘　　要：以蒸汽驱井网中油井不同受效范围的复合油层模式为基础,建立了蒸汽驱油井的采油指数和流入动态变化关系。研究表明,蒸汽驱受效后油井的采油指数同时与受效范围和粘度降低程度有关,油井采油指数随受效范围和粘度降低程度增加而增加,其变化特征与蒸汽吞吐井所得结论是相同的,蒸汽驱受效阶段与启动阶段相比,油井的产能关系得到较大程度的改善,且改善程度随受效范围增大;综合流入动态关系涵盖了等温与非等温渗流条件,同样适用于常规生产井的产能预测。The relationship of productivity index and inflow performance of steam drive wells is established based on compound reservoir model of different heated area of wells in steam drive pattern. The productivity index of oil wells is related to both heated area and the degree of viscosity reduction and increases with them accordingly. This shows the same feature with cyclic steam stimulation. Comparing steam drive responding stage with starting stage, the productivity of oil wells has improved greatly, and the degree of improvement increases with the heated area. Comprehensive inflow performance involves both isothermal and non-isothermal percolation condition, and is also helpful to productivity prediction of conventional wells.

关 键 词：蒸汽驱 井网 流入动态 采油指数 研究 

分 类 号：TE33[石油与天然气工程—油气田开发工程]