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US 2025/0027371 A1Published application
Hybrid milling high power laser tool
AssigneeSaudi Arabian Oil Company
InventorAbdullah M. Alharith
Life of this patent
Estimating the term…
Abstract
A downhole tool includes a milling rotary body, a fiber optic cable extending through the milling rotary body, one or more milling knives extending outwardly from the milling rotary body at an end of the milling rotary body, and a laser head extending from the second end of the milling rotary body. The fiber optic cable is connected to the laser head, and the laser head is configured to rotate about a central axis of the milling rotary body.
Claims16
A hybrid-milling tool, comprising:
- a milling rotary body extending from a toolstring at a first end;
- a fiber optic cable extending through the milling rotary body;
- one or more milling knives extending outwardly from the milling rotary body at a second end of the milling rotary body, opposite the first end;
- and
- a laser head extending from the second end of the milling rotary body,
- wherein the fiber optic cable is connected to the laser head, and
- wherein the laser head is configured to rotate about a central axis of the milling rotary body.
4 more elements
A method, comprising:
- providing a hybrid-milling tool on a toolstring in a wellbore of a well,
- wherein the hybrid-milling tool comprises:
- a milling rotary body extending from the toolstring at a first end;
- a fiber optic cable extending through the milling rotary body;
- one or more milling knives extending outwardly from the milling rotary body at a second end of the milling rotary body;
- and
- a laser head extending from the milling rotary body;
- lowering the hybrid-milling tool to a target section of a casing wall disposed within the wellbore;
- generating a laser beam from a laser power generator;
- directing the laser beam from the laser power generator, through the fiber optic cable, to the laser head;
- emitting the laser beam from the laser head at a first laser power;
- rotating the laser head about a central axis of the milling rotary body;
- creating a helical groove in the casing wall with the laser beam in the target section;
- and
- cutting, using the one or more milling knives, through the casing wall.
12 more elements
A system, comprising:
- a toolstring lowered into a wellbore of a well;
- a hybrid-milling tool secured to a first end of the toolstring, where the hybrid-milling tool comprises:
- a milling rotary body extending from the toolstring at the first end;
- one or more milling knives extending outwardly from the milling rotary body at a second end of the milling rotary body;
- and
- a laser head extending from the second end of the milling rotary body;
- and
- a fiber optic cable extending along the toolstring and through the milling rotary body to the laser head.
5 more elements
Dependencies are inferred from the claim text.