The determination of reasonable pressure difference for horizontal well test is relevant to the reasonable productivity which is determined by the selection of nozzle.
水平井试井合理压差的确定实际上是与水平井合理产能相对应,而合理的产能是通过选择合理的油嘴来实现的。
2
Selective soldering can be done under an Angle (tilt) like in wave soldering or horizontal with different shape of nozzles and nozzle materials.