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.

Date of Patent:
Aug. 20, 2019

Filed:

Jun. 29, 2015
Applicant:

Welltec Oilfield Solutions Ag, Zug, CH;

Inventor:

Lars Stæhr, Allerød, DK;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01); E21B 43/26 (2006.01); E21B 34/14 (2006.01); E21B 34/00 (2006.01); E21B 33/124 (2006.01);
U.S. Cl.
CPC ...
E21B 34/06 (2013.01); E21B 33/1243 (2013.01); E21B 34/14 (2013.01); E21B 43/26 (2013.01); E21B 2034/007 (2013.01);
Abstract

The present invention relates to a downhole flow control device for controlling a flow of a fluid from a borehole into a well tubular structure and/or from the well tubular structure into the borehole, comprising a base tubular having an axial axis and adapted to be mounted as part of the well tubular structure, the base tubular having a first opening, a first sleeve arranged within the base tubular, the first sleeve having a first sleeve part and a second sleeve part with a second opening, and the first sleeve being adapted to slide along the axial axis for at least partly aligning the first opening with the second opening, wherein a second sleeve is arranged at least partly between the second sleeve part and the base tubular, and an engagement element is arranged for engaging an indentation of the second sleeve part in a first position and for disengaging the indentation of the second sleeve part in a second position. Furthermore the present invention relates to a downhole system.


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