摘要
以W油藏为研究对象,应用数值模拟方法对深层特稠油油藏蒸汽吞吐后期转换开发方式进行研究。研究结果表明,该油藏适合双水平井重力泄水辅助蒸汽驱开发,最佳注采参数为:注汽速度240 t/d,采注比1.2,井底干度大于50%。该成果对深层稠油油藏吞吐后期进一步提高采收率具有重要指导意义。
Taking W reservoir as a research object, this paper focuses on the study upon the replacing develop- ment method at late stage of steam stimulation in deep and thick block super-heavy oil reservoir. The result shows that it is suitable for W reservoir, using steam-flooding assisted by gravity water drainage with dual horizontal wells. The best production and injection parameters are as follows： The stream injection rate is 240 t/d, the ratio of pro- duction and injection is 1.2 and the dryness fraction at the bottom-hole is above 50%. This research bears important references for deep and thick block super-heavy oil reservoir which is at late stage of steam stimulation.
出处
《科学技术与工程》
北大核心
2012年第25期6314-6318,共5页
Science Technology and Engineering
基金
辽河油田公司项目(2011121)资助
关键词
特稠油
蒸汽吞吐
转换开发方式
重力泄水辅助蒸汽驱
super-heavy oilted by gravity waterdrainagesteam stimulation replacing development methodsteam-flooding assis-
