| 摘要 |
The present invention relates to a drop device for immersing into a well having a casing with at least one sleeve having a profile and an inner face. The drop device comprises a body having a width, a leading end and a trailing end. The body further comprises a sealing element arranged between the leading end and the trailing end, moving from a first position in which fluid is allowed to pass the device and a second position in which the sealing element abuts the inner face of the sleeve and seals a first zone in the well from a second zone in the well. Furthermore, the invention relates to a downhole system and a stimulation method. |
