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US 12,709,963 B2Granted
Cleaning tool and method
AssigneeCortrax Global Limited
InventorAndrew Philip Churchill
Life of this patent
Estimating the term…
Abstract
A downhole cleaning tool (40) adapted for location in bore-lining tubing (22). The tool (40) comprises a tubular body (42) defining an internal bore (48), at least one radially extending cleaning blade (92), and an external axially extending bypass flute (96, 98, 100, 102). The body further defines a fluid flow path from the internal bore (48) to at least one elongated jetting slot (94) extending along an outer surface of the blade (92).
Claims14
A tool for cleaning a downhole tubing, the tool comprising:
- a tubular body defining an internal bore,
- at least one radially extending blade, and
- an external axially extending bypass flute, the tubular body further defining a fluid flow path from the internal bore to at least one elongated jetting slot extending along an outer surface of the blade, whereby when cleaning fluid is pumped through the fluid flow path the at least one elongated jetting slot generates and directs a surface cleaning fluid jet with an elongated cross section from the outer surface of the blade to an impact zone on an opposing surface of the downhole tubing, and wherein the cleaning fluid flows away from the impact zone along the opposing surface of the downhole tubing and through a gap between the outer surface of the blade and the opposing surface of the downhole tubing.
Dependencies are inferred from the claim text.