稠油油藏N2、CO2辅助蒸汽吞吐开采效果实验研究

摘要

Steam stimulation is one of the most effective means of heavy oil reservoir exploitation. Compared with steam stimulation, steam stimulation plus N2 and CO2has obvious effect in productivity increasing. Under the same injection vol-ume, the injection of steam, CO2 and N2 complex throughput has increased the productivity by 500 mL comparing with that of single steam stimulation. Thus, steam plus CO2 and N2 throughput for heavy oil reservoir exploitation has an important guiding significance.%蒸汽吞吐是稠油油藏开发最有效的手段之一。而N2和CO2辅助吞吐与蒸汽吞吐相比具有明显的提高采收率的效果。在相同注入体积下，注蒸汽、CO2和 N2复合吞吐较单纯注蒸汽吞吐的产量增加500,mL 以上。因此，蒸汽、CO2和N2辅助吞吐开采对于稠油油藏开发具有重要的指导意义。