Downhole tool
AssigneeDsolve AS
InventorsCarlos J. Delgado, Pål Viggo Hemmingsen, Bjarne Bugten, Marcus Fathi, Astrid Bjørgum, Nils-Inge Nilsen
Life of this patent
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Abstract
A downhole tool, for removing sections of metal tubing, said downhole tool comprising at least one conductive element being arranged to corrode a section of metal tubing using an electrolytic process, said conductive element being made of electric conductive material, an apparatus to establish a connection to the metal tubing, and a source of electrical power.
Claims37
A downhole tool, for removing sections of metal tubing, said downhole tool comprising:
- one or more conductive elements arranged to corrode a section of metal tubing using an electrolytic process, said one or more conductive elements being formed of electrically conductive material,
- an apparatus to establish a connection between the one or more conductive elements and the metal tubing,
- a power unit configured to provide an electrical current to the one or more conductive elements, and
- one or more non-conductive spacers configured to maintain a physical separation between the conductive elements and the metal tubing, and which are configured to sit against an internal surface of the metal tubing during a corrosion process, and wherein at least a portion of the tool is configured to, at least one of, rotate and oscillate, such that the spacers move against the surface of the tubing.
A downhole tool for removing sections of metal tubing, said downhole tool comprising:
- one or more conductive elements arranged to corrode a section of metal tubing using an electrolytic process, said one or more conductive elements being formed of electrically conductive material,
- an apparatus to establish a connection between the one or more conductive elements and the metal tubing,
- a power unit configured to provide an electrical current to the one or more conductive elements, wherein the power unit is configured to convert a low current/high voltage input from a power source into a high current/low voltage output for provision to the conductive elements and the tool comprises a device configured to obtain measurements of the current output from the power unit, and the measurements are usable to monitor the corrosion of the metal tubing.
A downhole tool for removing sections of metal tubing, said downhole tool comprising:
- one or more conductive elements arranged to corrode a section of metal tubing using an electrolytic process, said one or more conductive elements being formed of electrically conductive material,
- an apparatus to establish a connection between the one or more conductive elements and the metal tubing,
- a power unit configured to provide an electrical current to the one or more conductive elements,
- wherein the tool further comprises at least one apparatus to provide vibration to the conductive element.
Dependencies are inferred from the claim text.