稠油热采多分支井蒸汽分配计算模型  

The calculation model of steam distribution for thermal recovery of heavy oil reservoirs using multilateral wells

作　　者：侯秀兰[1] 程林松[1] 黄世军[1] 

机构地区：[1]中国石油大学(北京)石油工程教育部重点实验室,北京102249

出　　处：《复杂油气藏》2009年第2期59-62,共4页Complex Hydrocarbon Reservoirs

基　　金：国家自然科学基金"稠油热力泡沫复合驱的耦合作用和耦合模型"(编号:No.50276040);中青年创新基金"稠油油藏复杂结构井方式优选及适应性研究"部分研究成果(编号:03E7014)

摘　　要：稠油油藏采用多分支井进行注蒸汽热采时,由于每个分支所处地层的吸汽能力不同,所需的蒸汽流量也不同。基于节点分析系统理论和微元段思想建立了蒸汽分配计算模型,实现了数学解法并进行了应用分析。根据蒸汽沿程热损失分布模型及点分流模型及各个分支所在地层的油藏参数,计算了蒸汽在垂直段、弯曲段的沿程热损失及各分支水平段的地层吸汽指数和蒸汽流量,为稠油油藏多分支井热采参数设计提供了理论参考依据。During steam injection recovery of the heavy oil reservoir using multilateral wells, the needed steam flow rate of each branch is different as it has different steam injection ability. Based on the nodal analysis and segmentation method, the steam distribution model is built, to provide a mathematical solution. According to the reservoir patameters of each branch, the model calculates the heat loss during steam flowing in the pipe and the different steam flow rate in different branch. The results can provide theoretical reference for the thermal recovery parameter design of heavy oil reservoir using multilateral wells.

关 键 词：稠油 热采 多分支井 吸汽指数 蒸汽分配 

分 类 号：TE345[石油与天然气工程—油气田开发工程]