Powered articulated magnetic fishing tool
AssigneeSaudi Arabian Oil Company
InventorsShrikant Tiwari, Opeyemi Adewuya
Life of this patent
Estimating the term…
Abstract
A powered articulated magnetic fishing tool having one or more knuckle or ball joints and a magnet to retrieve fish from a subterranean well and methods of retrieving the metallic object using the fishing tool. The fishing tool includes a magnet and one or more powered joints. The powered joints may each include or be coupled to a multi-axis position sensor that indicates the orientation of the joint and associated section downhole from the joint. The fishing tool may include a camera and a light located at the magnet end of the fishing tool. A system may include a human interface console located at the surface to control the fishing tool.
Claims18
A tool for retrieving a metallic object in a well extending from a surface, comprising:
- a first section;
- a second section comprising a first end and a second end, the first end coupled to the first section and the second end comprising a magnet;
- a first joint coupling the first end of the second section to the first section, wherein the first joint comprises a knuckle joint or a ball joint, the first joint moveable via power received from a power source;
- wherein the first joint is operable to move the second section between a first position and a second position, such that the second end comprising the magnet is moveable to engage the metallic object;
- a third section having a first end and a second end;
- and
- a second joint coupling the second end of the third section to the first section, wherein the second joint comprises a knuckle joint or a ball joint, the second joint moveable via power received from the power source,
- wherein the second joint is operable to move the first section between a third position and a fourth position.
A system for retrieving a metallic object in a well extending from a surface;
- comprising:
- a tool comprising:
- a first section;
- a second section comprising a first end and a second end, the first end coupled to the first section and the second end comprising a magnet;
- a joint coupling the first end of the second section to the first section, wherein the joint comprises a knuckle joint or a ball joint, the joint moveable via power received from a power source;
- wherein the joint is operable to move the second section between a first position and a second position, such that the second end comprising the magnet is moveable to engage the metallic object, wherein the joint comprises a position sensor;
- a human interface console, the human interface console comprising:
- a processor;
- a non-transitory computer-readable memory;
- and
- a control operable to control movement of the joint between the first position and the second position;
- and
- a display, wherein the non-transitory computer-readable memory comprises instructions that, when executed by the processor, perform the operations of:
- receiving a signal from the position sensor, the signal indicative of a position of the joint;
- and
- displaying a position indicator on the display to indicate the position of the joint.
A method for retrieving a metallic object in a well extending from a surface, the method comprising:
- inserting a tool into a wellbore of the well, wherein the tool comprises:
- a first section;
- a second section comprising a first end and a second end, the first end coupled to the first section and the second end comprising a magnet;
- a first joint coupling the first end of the second section to the first section, wherein the first joint comprises a knuckle joint or a ball joint, the first joint moveable via power received from a power source;
- wherein the first joint is operable to move the second section between a first position and a second position;
- a third section having a first end and a second end;
- and
- a second joint coupling the second end of the third section to the first section, wherein the second joint comprises a knuckle joint or a ball joint, the second joint moveable via power received from the power source,
- wherein the second joint is operable to move the first section between a third position and a fourth position
- moving the first joint between a first position and a second position, such that the magnet engages the metallic object;
- removing the tool and the metallic object from the wellbore.
Dependencies are inferred from the claim text.