The returned carrier fluid enters the internal flow path at the base of the tool before crossing over to the annulus above the packer assembly, isolating the annulus.
在转换至封隔器装置上面的环空以前，回流的携带液在工具底部进入内部流动通道，于是将环空隔离。
2
At that point either produce the well to begin the swelling process or allow the current well fluid to swell the packer systems prior to operations or circulate down the designed swelling fluid.