The results suggest that a reservoir with low vertical permeability and interlayer above the water oil contact would have good effect of water extraction and cone control.
研究表明，对于垂向渗透率较低、油水界面之上存在夹层的储集层，采水控锥效果显著。
2
Since the gear reducer is working with load, attention shall be paid to the temperature increase of axial cone bearing and sliding thrust bearing oil sump.
At the end, an experimental research is carried out on the oil injectors used for injector heater with different oil-supply, different forms of injection cone and different injection cone Angle.