摘要
对砂砾岩稠油油藏进行注蒸汽热力采油，在吞吐阶段历史拟合、汽驱阶段跟踪拟合的基础上，进行方案优选。确定该类型油藏吞吐７～８周期为最佳转驱时机；汽驱阶段最佳注汽速度为６～８ｔ／ｈ；汽驱阶段边角井蒸汽引效能实现较好的开发效果；采用略大于１．０的采注比，按最优方案生产，汽驱阶段采出程度为１７％～１８％。
Based on the history match during steam soak period and the follow up match during steam drive period for sandy conglomeratic heavy oil reservoir,poject optimum has been made.It is the optimum opportunity to convert steam soak into steam drive after 7￣8 cycles for this kind of reservoirs;The optimum injection rate is 6￣8 t/h during steam drive period;Steam drainage at corner wells can obtain better development results;Recovery percent of reserves during steam drive period is 17%￣18%, when the production injection ratio is slightly more than 1 and the operation is under the optimum project.
关键词
砂砾岩
稠油油藏
蒸汽驱油
数值模拟
heavy oil resorvoir,steam drive,numerical simulation sandy conglomeratic rock
