春10井区稠油油藏蒸汽吞吐开发效果主控因素

Study of Main Controlling Factors of Heavy Oil Reservoir on Steam Stimulation Development Performance in Chun10 Block

春光油田春10井区为典型的稠油油藏,目前采取蒸汽吞吐的方式进行开采,取得了较好的效果但也暴露出较多问题。蒸汽吞吐生产效果受油藏地质特征、井参数、注采参数等多方面的影响,本文应用统计法、灰色关联法、对比法、数模法等分析影响开发效果的主要因素,而后对主控因素进行分析,研究表明:统计法、灰色关联法在本区影响因素评价中不适用,综合对比法、数模法分析结果,认为影响开发效果的主控因素为油层厚度、水平段长度、水平段垂向位置、注汽干度。针对主控因素进行了数模及实验研究,得到了适合于春10井区油藏热采开采的最优化参数,为本区及同类油藏开发提供指导。

Chun10 block is a typical heavy oil reservoir,the method of steam stimulation is adopted and good performance has achieved. There are many affecting factors such as reservoir geological characteristics,well parameters,injection-production parameters and so on,then analysis the main influencing factors by statistical method,grey correlation method,comparative method,analog method,In the end,the main control factors were analyzed,after study: Statistical method,grey correlation method are not applicable on the evaluation of the influence factors in the region,Comprehensive analysis the results of comparison method,analog method,it shows that the main control factors are reservoir thickness,horizontal section length,horizontal section of the vertical position,dry steam injection in the area. The main controlling factors are optimized of heavy oil using steam huff and puff,the research results provide guidance for the region and the similar reservoir development.