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:
Nov. 27, 2012
Filed:
Feb. 28, 2008
Jørgen Hallundbaek, Graested, DK;
Thomas Sune Andersen, Helsnigør, DK;
Jørgen Hallundbaek, Graested, DK;
Thomas Sune Andersen, Helsnigør, DK;
Welltec A/S, Allerod, DK;
Abstract
Drilling tool () for drilling a well downhole where fluid is surrounding the tool and where the tool has a housing () and is connected to an electrical conducting means, such as a wireline. The drilling tool has a drilling head () and a fluid cleaner () for removal of elements, such as debris and formation pieces, from the fluid while drilling downhole. The fluid cleaner has a chamber () and a filter () within the chamber for separation of the elements from the fluid. The tool further comprises a pump () for pumping the fluid into the chamber through an inlet () in the drilling head () and through the filter before entering the well again. Furthermore, the tool comprises a driving unit for driving the pump and the drilling head.