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:
Oct. 15, 2024
Filed:
Oct. 10, 2022
Welltec A/s, Allerød, DK;
Tomas Sune Andersen, Allerød, DK;
WELLTEC A/S, Allerød, DK;
Abstract
A downhole driving unit for propelling a tool forward in a well and/or for providing weight on a bit while performing an operation, includes a tool body, an electric motor powered by a wireline, a plurality of projectable arm assemblies connected in a first arm end with the tool body, a plurality of wheels for contacting a wall of the well, each wheel comprising a hydraulic motor for rotation of the wheel, each arm assembly being at a second arm end connected with one of the plurality of wheels, and a first hydraulic pump driven by the electric motor for generation of a first fluid pressure for projection of the plurality of projectable arm assemblies. The downhole driving unit further comprises a hydraulic section with a first controllable valve controlling the first fluid pressure.