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:
Apr. 02, 2019

Filed:

Dec. 22, 2016
Applicants:

Cord Simon Huber, Gehrden, DE;

Volker Peters, Wienhausen, DE;

Heiko Eggers, Bad Fallingbostel, DE;

Inventors:

Cord Simon Huber, Gehrden, DE;

Volker Peters, Wienhausen, DE;

Heiko Eggers, Bad Fallingbostel, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/18 (2012.01); E21B 34/08 (2006.01);
U.S. Cl.
CPC ...
E21B 47/187 (2013.01); E21B 34/08 (2013.01);
Abstract

An apparatus for use in a wellbore is disclosed that in one non-limiting embodiment includes a flow restriction device that that contains a channeling element having a fluid flow passage, a restriction element spaced from the channeling element defining a gap between the restriction element and the channeling element, wherein relative movement between the restriction element and the channeling element obstructs flow of a fluid flowing through the flow passage to increase pressure in the fluid across the device. In one embodiment an activation device displaces one of the channeling element and the restriction element to adjusts or alter gap in response to certain changes in the pressure across the restriction device.


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