Downhole tool
AssigneeInnovation Energy AS
InventorCarlos J. Delgado
Life of this patent
Estimating the term…
Abstract
The present invention relates to a downhole tool (23), for removing sections of metal tubing, comprising: at least one conductive element (1) being arranged to corrode a section of metal tubing using an electrolytic process, said conductive element (1) being a tube or a pipe which is made of electric conductive material, an apparatus (4) to establish a connection to the metal tubing (2), and a milling apparatus with cutting or abrasive elements (3) arranged to remove byproducts from the electrolytic process. The invention also relates to a modular downhole tool (45), comprising an elongated main shaft (8) with several modules for insertion in a wellbore.
Claims26
A downhole tool for removing sections of a metal tubing, the tool comprising:
- at least one conductive element for corroding a section of the metal tubing using an electrolytic process with an electrolyte and configured to control acceleration of corrosion at different positions of the metal tubing, said conductive element being one of, a cylindrical or conical tube made of an electrically conductive material;
- and
- an apparatus configured to establish connection to the metal tubing,
- wherein the tube comprises at least one of, longitudinal grooves or helical grooves.
A downhole tool for removing sections of a metal tubing, the tool comprising:
- at least one conductive element for corroding a section of the metal tubing using an electrolytic process with an electrolyte and configured to control acceleration of corrosion at different positions of the metal tubing, said conductive element being one of, a cylindrical or conical tube made of an electrically conductive material;
- and
- an apparatus configured to establish connection to the metal tubing,
- wherein the tool further comprises at least one electrical motor for rotation of equipment on the tool, at least one high power AC/DC source, at least one module for transferring power and movement of the tool, at least one coupling system for connection to other equipment or strings in a wellbore, and at least one apparatus to provide vibration to the at least one conductive element.
A modular downhole tool, comprising an elongated main shaft with several modules for insertion in a wellbore, said tool comprising:
- at least one electrolytic milling module with at least one conductive element for corroding a section of metal tubing using an electrolytic process and configured to control acceleration of corrosion at different positions of the metal tubing;
- said at least one conductive element being one of, a cylindrical or conical tube made of an electrically conductive material
- an apparatus configured to establish a connection to the metal tubing,
- a milling apparatus with cutting or abrasive elements for removing byproducts of the electrolytic process, and
- at least one electromechanical milling module with an expandable arm equipped with one of, a drill bit or a saw blade.
Dependencies are inferred from the claim text.