蒸汽吞吐在普通稠油油藏注水开发中后期的应用

Application of steamhuff and puff in middle and late waterflooding
stages of common heavy oil reservoir

阴艳芳

Yin Yanfang

辽河油田公司勘探开发研究院，辽宁 盘锦 124010

(Research Institute of Exploration and Development, Liaohe Oilfield Company, CNPC, Panjin 124010, China).

普通稠油注水开发油藏由于油水黏度比大，面临进入高含水中后期水驱开采效果越来越差的普遍矛盾。文中以欢喜岭油田锦99块为例，以油藏工程理论为依据，通过对油藏开发特征的深入分析，暴露开发矛盾，提出利用注蒸汽热采开发方式辅助油藏水驱的开发模式, 开展蒸汽吞吐试验的可行性研究,在实践中使油田开发效果得到明显改善，对于类似油藏改善开发效果、提高采收率具有一定的借鉴意义。

For the high oil-water viscosity ratio of common heavy oil reservoir, the development effect becomes worse and worse with the
reservoir coming into the high water production phase. In this paper, cyclic steam stimulation assisted with waterflooding method is
used to carry out the cyclic steam stimulation research in terms of the reservoir engineering theory and the analysis of producing
features, taking Block Jin 99 in Huanxiling Oilfield as an example. The production behaviors show that the cyclic steam simulation
assisted with waterflooding method effectively improves the producing behavior in Block Jin 99.The study result provides the
references for EOR and development of similar reservoirs.