稠油热采开发后期技术对策研究

Study on Countermeasures of Late Development of Heavy Oil Thermal Recovery

古城油田泌浅10区属于浅薄层特稠油油藏,经过二十多年的蒸汽吞吐,已进入开发后期,高周期吞吐后,受区域采出程度、汽窜、注采参数等影响,周期递减加大,生产效果变差,通过优化注汽注采参数分析,实施氮气辅助面积注汽、氮气辅助间歇点汽驱等措施,有效地改善了稠油热采吞吐后期开发效果。

Gucheng oilfield Biqian 10 district belongs to the shallow layer of super heavy oil reservoir, after steam huff and puff of more than 20 years, developed into the late period, high throughput, by the regional recovery, steam channeling, injection production parameters and so on, decreasing production cycle increased, the effect of variation, by optimizing the steam injection production parameters analysis, implementation nitrogen assisted area of steam injection, nitrogen assisted steam flooding, intermittent point measures, effectively improve the development effect of the thermal recovery of heavy oil.