考虑热损失稠油热采双孔介质不稳定试井分析  

TRANSIENT WELL TESTING ANALYSIS CONSIDERING HEAT LOSS OF HEAVY OIL THERMAL RECOVERY IN DOUBLE POROSITY MEDIA

作　　者：陈荣灿[1] 刘彬[2] 贾永禄[2] 余佳[3] 李龙云 

机构地区：[1]中国石油新疆油田分公司,新疆克拉玛依834000 [2]西南石油大学,四川成都610500 [3]四川石油管理局勘探开发研究院 [4]西南油气田川东北气矿,四川宣汉636165

出　　处：《西南石油学院学报》2006年第6期42-45,共4页Journal of Southwest Petroleum Institute

摘　　要：注蒸汽吞吐热采技术已经成为开发稠油油藏最为有效的方法,但是蒸汽波及范围外的油层没有得到有效的改善,因而油藏流体物性可以分为两个区。针对双孔介质中的稠油油藏蒸汽吞吐热采井蒸汽波及区和未波及区流体的流动性质的差别,提出了试井问题所必须采用的径向流体复合模型,模型中考虑了蒸汽在上下盖层的热损失问题。建立了内区考虑热损失的径向流体复合模型,求得了无限大地层情况下的拉氏空间解,并通过数值反演方法作出了相应的样板曲线,并且对样板曲线作了相应的敏感性分析,为稠油开发油藏压力动态分析提供了一种新的模型。The thermal recovery technology by Steam stimulation has become the most effective method in the heavy oil reservoir, but the steam upswept region would not be effectively improved, so the heavy oil reservoir can be divided into two areas according to the reservoir fluid properties. For the steam stimulation thermal recovery well in heavy oil reservoir with double porosity media, owing to the difference of flow properties in steam sweeping region and upswept region, the problem of well testing must use radial fluid composite model. The heat loss of steam in cap rocks is considered, a radial fluid composite model is established, in which, heat loss is considered, the solution of Laplace space in the condition of infinite formation is gained, and the method of numerical inversion is used to figure out the corresponding type curves, which provide a new model for pressure behavior analyses about heavy oil reservoir.

关 键 词：稠油热采 双孔介质 试井 热损失 解释模型 

分 类 号：TE345[石油与天然气工程—油气田开发工程]