蒸汽吞吐水平井注汽强度优化设计与应用  

Optimum Design and Application of Steam Injection Intensity for Horizontal Well in Heavy Oil Reservoir

作　　者：李续儒[1] 

机构地区：[1]中油辽河油田公司,盘锦124010

出　　处：《科学技术与工程》2012年第31期8394-8396,共3页Science Technology and Engineering

摘　　要：通过油藏数值模拟方法研究了蒸汽吞吐方式下注入蒸汽对水平井的作用机理。认为注汽参数中,注汽强度的大小直接影响到水平段加热半径扩展的范围、井筒的吸汽状态和水平段有效加热长度;同时注汽强度还决定了后期的蒸汽作用方向。通过典型油藏离散化数值模拟模型的注汽强度计算,针对性地提出蒸汽吞吐水平井在不同油藏条件下,合理注汽强度的优化设计原则,并在现场开展了增大注汽强度试验,应用后取得了较好的效果。The effect and mechanism of injecting steam into the horizontal wells during the different developing stages has been studied through the method of numerical reservoir simulation. It is believed that the steam-injecting intensity has the more influence to the production of horizontal wells , which influence is apparent to the heating length of horizontal section during early cycle and the enlargement of heat radius during medium and later cy- cle. Through the calculation of oil reserve steam-injecting intensity using the analogue model of the typical oil re- serve data, an optimized design principle of reasonable steam-injecting intensity for the horizontal wells is put for- ward in point during the different developing stages and a better result gaines after utilization at site.

关 键 词：水平井 蒸汽吞吐 注汽强度 加热半径 数值模拟 稠油 

分 类 号：TE355.3[石油与天然气工程—油气田开发工程]