Downhole tool
AssigneeWelltec A/S
InventorsVladimir Sune MALAFEY, Alexander IBRAGIMOV
Life of this patent
Estimating the term…
Abstract
A fishing tool has a drive end to be connected to an associated running structure and an engagement end configured to engage with a fish located downhole. The engagement end has a rotationally self-aligning guiding structure. A method for providing the fishing tool includes providing a guiding structure having an eccentric center of mass and being rotationally non-symmetrical, and rotationally supporting the guiding structure at an engagement end of the fishing tool so that the guiding structure is self-aligning. A method for operating the fishing tool includes engaging the fishing tool with a downhole fish and extracting the fishing tool and the engaged fish from downhole.
Claims14
A fishing tool comprising:
- a drive end to be connected to an associated running structure;
- and
- an engagement end configured to engage with a fish located downhole,
- wherein the engagement end comprises a guiding structure that is rotationally self-aligning and non-symmetrical.
A method for providing a fishing tool, comprising:
- providing a guiding structure having an eccentric center of mass and being rotationally non-symmetrical;
- and
- rotationally supporting the guiding structure at an engagement end of the fishing tool so that the guiding structure is self-aligning.
A method for operating a fishing tool, comprising:
- providing a guiding structure having an eccentric center of mass and being rotationally non-symmetrical;
- rotationally supporting the guiding structure at an engagement end of the fishing tool so that the guiding structure is self-aligning;
- engaging the fishing tool with a downhole fish, and
- extracting the fishing tool and the engaged fish from downhole.
Dependencies are inferred from the claim text.