Tubing string with agitator, tubing drift hammer tool, and related methods
AssigneeComplete Directional Services Ltd.
InventorShane Matthews
Life of this patent
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Abstract
A tubing string, such as a coiled tubing or jointed tubing string, has an agitator mounted within an interior of the tubing string at an intermediate position between an uphole end and a downhole end of the tubing string. A tubing agitator is structured to be installed within a tubing string. A method includes: forming or installing a seat within an interior of a tubing string at an intermediate position between an uphole end and a downhole end of the tubing string; and conveying an agitator through the interior of the tubing string until the agitator contacts the seat. A hammer drift tool is also described.
Claims11
A coiled tubing string comprising an agitator mounted within an interior of the coiled tubing string at an intermediate position between an uphole end and a downhole end of the coiled tubing string;
- and
- in which the agitator comprises a plurality of agitators mounted and spaced from one another within the interior of the coiled tubing string at different respective intermediate positions along at least a portion of a longitudinal length of the coiled tubing string;
- in which, for each of the plurality of agitators, an inner wall of the coiled tubing string is indented to form a seat upon which the agitator sits;
- in which, for each of the plurality of agitators, an outer housing of the agitator contacts the seat in use;
- and
- in which, for each of the plurality of agitators, the outer housing comprises a sleeve that defines an exterior of the outer housing, in which an outer diameter of the sleeve narrows at an intermediate cylindrical portion of the sleeve.
A coiled tubing string comprising an agitator mounted within an interior of the coiled tubing string at an intermediate position between an uphole end and a downhole end of the coiled tubing string;
- and
- in which the agitator comprises a plurality of agitators mounted and spaced from one another within the interior of the coiled tubing string at different respective intermediate positions along at least a portion of a longitudinal length of the coiled tubing string;
- in which, for each of the plurality of agitators:
- the agitator is a fluid-actuated agitator;
- the agitator defines a fluid passageway between an uphole end and a downhole end of the agitator;
- the agitator has a motor that rotates and vibrates under flow through the fluid passageway;
- and
- in which, for each of the plurality of agitators, the agitator comprises a compressible element that supports the motor and compresses under fluid flow through the agitator in a downhole direction.
A coiled tubing string comprising an agitator mounted within an interior of the coiled tubing string at an intermediate position between an uphole end and a downhole end of the coiled tubing string;
- and
- in which the agitator comprises a plurality of agitators mounted and spaced from one another within the interior of the coiled tubing string at different respective intermediate positions along at least a portion of a longitudinal length of the coiled tubing string;
- in which, for each of the plurality of agitators:
- the agitator is a fluid-actuated agitator;
- the agitator defines a fluid passageway between an uphole end and a downhole end of the agitator;
- the agitator has a motor that rotates and vibrates under flow through the fluid passageway;
- and
- in which, for each of the plurality of agitators, the agitator comprises a thrust bearing assembly that supports the motor.
Dependencies are inferred from the claim text.