Centrally located drill bit cleaning element
AssigneeSchlumberger Technology Corporation
InventorsPhilip Trunk, Ming Zhang, Mahesha Kumar
Life of this patent
Estimating the term…
Abstract
A downhole tool includes a body having a longitudinal axis and a fluid passage extending through the body. The downhole tool includes at least one blade having one or more engagement faces thereon. At least one junk slot extends adjacent to the at least one blade. The downhole tool includes a cleaning element at the longitudinal axis of the body. The cleaning element has a substrate bore in fluid communication with the fluid passage. The cleaning element includes at least one opening or passing a fluid from the substrate bore and out of the downhole tool through the at least one junk slot. A flow direction of the at least one opening is offset from the longitudinal axis.
Claims4
A downhole tool cleaning element, comprising:
- a body configured to be connected to a downhole tool coaxially at a central axis of the downhole tool;
- a substrate bore within the body and configured for fluid communication with a fluid passage of the downhole tool when the body is connected to the downhole tool;
- and
- at least one fluid conduit in the body for passing a fluid from the substrate bore, out of the at least one fluid conduit, and toward at least one external feature of the downhole tool, wherein the at least one fluid conduit is positioned at a radial conduit angle that extends between a conduit axis and a tangent line that is tangent to a circumferential wall of the substrate.
Dependencies are inferred from the claim text.