Cleanout tools and related methods of operation
AssigneeMichael W. Dennis
InventorsMichael W. Dennis, Gary W. Pankonien, Garry A. Wilson
Life of this patent
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Abstract
Cleanout tools and related methods of operation. At least some of the example embodiments are cleanout tools including a tool body that defines an internal annular channel, a joiner coupled to the tool body, a sleeve telescoped within the joiner and tool body, and a ball disposed within the annular channel. The ball held within the annular channel by the sleeve, and the ball configured to move along the annular channel under force of fluid pumped into the cleanout tool. The ball creates a pulsing of fluid streams exiting the tool body. Moreover, in some example systems the fluid streams created by the tool body intersect the inside diameter of a casing at non-perpendicular angles.
Claims14
A cleanout tool comprising:
- a first tool body comprising:
- an outside surface, a first end, a second end opposite the first end, an axial length between the first end and second end, and a medial portion, the medial portion is cylindrical and has a medial outer diameter, and the medial portion has a central longitudinal axis;
- an inside surface that defines a first inside diameter;
- an annular channel that circumscribes the inside surface within the first tool body, the annular channel has two side walls that intersect the first inside diameter, and the annular channel has a closed bottom with an inside diameter greater than the first inside diameter;
- a plurality of ports through the first tool body, each port has an inside aperture within the annular channel and an outside aperture through the medial portion of the first tool body, and the ports spaced around the annular channel;
- a first sleeve telescoped within the first tool body, the first sleeve partially occludes the annular channel, the first sleeve comprises an inside diameter, an outside diameter, and a plurality of ducts, each duct has an inside aperture on the inside diameter of the first sleeve and an outside aperture on the outside diameter of the first sleeve, the outside aperture of each duct of the plurality of ducts fluidly coupled to the annular channel;
- a first ball configured to move within the annular channel circularly around the central longitudinal axis, and the first ball constrained against movement axially relative to the central longitudinal axis by the annular channel.
Dependencies are inferred from the claim text.