| 摘要 |
The present invention relates to a downhole cleaning tool for removing residues or precipitation solids on an inner face of a casing. The downhole cleaning tool comprises a tool body having a bore and a wall, at least one inlet in the wall of the tool body, said inlet being fluidly connected with the bore, a solid removing element connected with the tool body for releasing solids of the inner face, a fluid cleaner section comprising a chamber, a filter within the chamber for separation of the solids from the fluid and a pump fluidly connected with the bore for sucking fluid with solids in through the inlet into the chamber, wherein the solid removing element comprises a projecting part projecting from the tool body and a spring arranged between the tool body and the projecting part. Furthermore, the present invention relates to a cleaning method for removing residues or precipitation solids on an inner face of a casing. |
