Carbon pressure ball machine device is a hydraulic pump hydraulic protection will be high pressure oil into the hydraulic cylinder, driving the piston produce axial displacement.

碳素压球机液压保护装置是由液压泵将高压油打入液压缸，使活塞产生轴向位移。

youdao

For the slime-tube displacement test, the diagnostic criterion of miscible conditions is the flex point on the changing curve of oil recovery with displacement pressure, but not the high oil recovery.

对于细管驱替实验，混相条件的判断标准应该是采收率随驱替压力变化曲线上的拐点，而不是高的采收率。

youdao

Decrease of the oil displacement efficiency of the damaged reservoirs is mainly resulted from the reduction of matrix permeability, change of wettability and increase of capillary pressure.

基质渗透率的降低、润湿性的改变以及毛细管压力的增大是储层驱油效率降低的主要因素。

youdao