Good recovery result had once been achieved by steam flood, however, because of invasion of edge and bottom water, the ultimate recovery factor of steam soaking is low.

蒸汽吞吐曾获得很好的开采效果，但由于边、底水的侵入，最终蒸汽吞吐采收率较低。

youdao

Result In the early period of steam soaking, the high permeable layer is better produced, middle and low permeable layer is poorly produced or unproduced;

结果蒸汽吞吐初期高渗透层动用程度好，中低渗透层动用程度差或未动用；

youdao