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:
May. 22, 2012
Filed:
Feb. 07, 2007
Magnar Tveiten, Sandnes, NO;
Øyvind Stokka, Sandnes, NO;
Erling Kleppa, Jørpeland, NO;
Tom Norland, Hommersåk, NO;
Magnar Tveiten, Sandnes, NO;
Øyvind Stokka, Sandnes, NO;
Erling Kleppa, Jørpeland, NO;
Tom Norland, Hommersåk, NO;
Petroleum Technology Company AS, Stavanger, NO;
Abstract
The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing () with an internal body () moveable within the outer housing () with an internal bore () which in a first closed position is closed with a metal to metal seal system between the outer housing () and the internal body (), which internal body () is operated by pressure differential across the internal body (), where the internal body () is designed with slots () forming outlets of the internal bore () which in an open position of the device leads to the outside of the outer housing ().