特超稠油高周期过热蒸汽吞吐注采参数优化

Optimization of injection production parameters of superheated steam for ultra heavy oil

以某油田三区南部主力层Ⅲ6小层蒸汽吞吐开发为例,转过热蒸汽吞吐开采时,其动态配注原则:累积采注比<0.8时,后续周期注汽量递减10%;累积采注比0.8~1.0时,后续周期注汽量持平;累积采注比1.0~1.2时,后续周期注汽量递增加10%;累积采注比>1.2时,后续周期注汽量递增20%。

This article describes the dynamic matching principle with the example of the steam stimulation development in the III6 layer of the main reservoir in southern oilfield:when the cumulative injection rate is less than 0.8,the steam stimulation declines by 10%;when the cumulative injection rate is equal to 0.8 to 1.2,the steam stimulation unchanged;when the cumulative injection rate is 1.0 to 1.2,the steam injected increases by 10%;when the cumulative injection rate is more than 1.2,the subsequent steam injected rises by 20%.