Borehole conditioning tools
AssigneeErnest Newton Sumrall
InventorErnest Newton SUMRALL
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Abstract
A borehole tool, having a cylindrical body, the cylindrical body having an upper shank, a lower shank, and a component tool disposed between the upper shank and the lower shank, wherein the tool is configured to have an outer surface airfoil configuration, whereby lift is created as fluid passes along the cylindrical body. The component tool can be a combination stabilizer tool, a reamer tool and a cutting removal tool, wherein the stabilizer tool is configured as a helical stabilizing blade and reamer blade, a flow path disposed between the helices of the stabilizing and reamer blade, the stabilizing and reamer blade further comprising a reamer cutting element disposed where an edge of the stabilizing and reamer blade meets the flow path.
Claims20
A borehole tool, comprising:
- a cylindrical body,
- the cylindrical body having an upper shank, a lower shank, and a component tool disposed between the upper shank and the lower shank,
- wherein the tool is configured to have an outer surface airfoil configuration, whereby lift is created as fluid passes along the cylindrical body.
A designed tubular surface, comprising:
- where fluid moving across said tubular surface enters an annular cross sectional area that is reduced in the axial direction at a predetermined rate, based upon the commonly known principles of the cambered airfoil.
A tubular surface design, comprising:
- a configuration allowing change in annular volume based upon the traditional cambered airfoil mathematics, which is bi-directional rather than uni-directional as the cambered airfoil;
- said surface configured to generate differing fluid velocities irrespective of fluid motion being upwards, towards the surface or down, towards the end of the wellbore, of a drill string axis.
Dependencies are inferred from the claim text.