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:
Jul. 08, 2025
Filed:
Oct. 25, 2021
Inflowcontrol As, Porsgrunn, NO;
INFLOWCONTROL AS, Porsgrunn, NO;
Abstract
A fluid flow control device, which is for establishing a controllable fluid communication of a fluid flow between an external fluid reservoir and a base pipe of a production string, includes a primary flow path and a secondary flow path. The primary flow path is arranged inside a main housing. The primary flow path includes a primary flow path inlet configured to guide a primary fluid flow constituting a major portion of the fluid flow into the main housing during operation and a primary flow path outlet configured to guide the primary fluid flow from the main housing and into the base pipe during operation. The secondary flow path is configured to guide a secondary fluid flow constituting the remaining portion of the fluid flow. The secondary flow path includes a first fluid flow restrictor configured to generate a pressure decrease from a pressure pupstream of the first fluid flow restrictor to a pressure pdownstream of the first fluid flow restrictor, a second fluid flow restrictor arranged downstream of the first fluid flow restrictor and configured to generate a pressure decrease from the pressure pupstream of the second fluid flow restrictor to a pressure pdownstream of the second fluid flow restrictor and a chamber arranged downstream the first fluid flow restrictor and upstream the second fluid flow restrictor. A movable valve element is arranged inside the main housing and configured to close the primary flow path for fluid flow when exposed to a pressure force from within the chamber exceeding a threshold pressure force. The fluid flow control device further includes a top housing covering the primary flow path inlet of the main housing. The top housing includes a fluid flow inlet allowing the fluid flow to flow from the external fluid reservoir and at least partly into the primary flow path inlet, a swirl inducer inducing a swirl of the fluid flow between the fluid flow inlet and the primary flow path inlet, and a secondary flow path inlet configured to guide a secondary fluid flow into the secondary flow path.