蒸汽吞吐极点降维法注汽量设计

Steam injection design by method of climax descent for cyclic steam stimulation

蒸汽吞吐是目前稠油油藏开发的主要方式,合理利用蒸汽热能、提高油汽比对于稠油油藏的经济有效开发非常重要。蒸汽吞吐中注汽量对周期油汽比影响巨大,但注汽量是多相关、多维空间的一个复杂组合。参考数理统计中“分类”、“聚类”及数学分析中极点降维的思路对注汽量问题进行分析,先“分”再“析”,对合理注汽量进行设计,并编制了相关软件,为稠油蒸汽吞吐中的注汽量设计提供了一种新思路。

Cyclic steam stimulation is a major way of recovering heavy oil at present.Efficient development is highly dependent on rational using of steam energy and improving oil-steam ratio.Steam injection will have a big impact on cyclic oil-steam ratio,but it is a complex combination of multi-relation and hyperspace.By referring to 'categorization' and 'cluster' in mathematical statistics as well as the method of climax descent,the steam injection is analyzed and designed,and related software is programmed to provide a new method for steam injection design in cyclic steam stimulation.