The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2019
Filed:
Jun. 13, 2014
Welltec A/s, Allerød, DK;
Tomas Sune Andersen, Helsingør, DK;
Welltec A/S, Allerød, DK;
Abstract
The present invention relates to a downhole machining system () for machining a casing () in a borehole in a well having a top. The downhole machining system comprises a first tool part () having an axial extension () and an anchoring section (); a second tool part () adapted to rotate and move axially in relation to the first tool part, the second tool part comprising a machining bit () being movable in a direction radial in relation to the axial extension; a first actuator () comprising an electrical motor (A) for axially moving the second tool part in relation to the first tool part; a second actuator () comprising an electrical motor () for rotating the second tool part in relation to the first tool part; and a third actuator () comprising an electrical motor () for rotating the bit. At least one of the actuators comprises a gear () for changing a rotational speed of a rotor of the motor.