Gas lift throwing-in and pulling matching device is an important component of gas lift production technique.
气举投捞配套装置是投捞式气举采油工艺的重要组成部分，在投捞式气举采油工艺中发挥着重要作用。
2
As increasing of heavy oil component in raw oil and rising of light oil yield, this result in stricter requirement for lift pipe reactor of oil refining unit.
由于原料油不断重质化，而且要求轻质油收率不断上升，因此对炼油装置提升管反应器的要求更加苛刻。
3
The magnitude of each velocity component and tangential velocity curve changed a lot and the changes were even more obvious along as increasing of the valve lift.