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:
Apr. 01, 2014
Filed:
Feb. 10, 2009
Applicants:
Ole Sevheim, Stavanger, NO;
Øyvind Stokka, Sandnes, NO;
Erling Kleppa, Jørpeland, NO;
Magnar Tveiten, Sandnes, NO;
Inventors:
Ole Sevheim, Stavanger, NO;
Øyvind Stokka, Sandnes, NO;
Erling Kleppa, Jørpeland, NO;
Magnar Tveiten, Sandnes, NO;
Assignee:
Petroleum Technology Company AS, Stavanger, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Present invention regards a device for injection and stimulation of fluids in a wellbore, where the device is typically is installed in Christmas trees, wellheads or subsea. The device comprises two separable sections, where the section that is mounted/arranged within the Christmas tree or wellhead, will remain in a closed position even if the other section due to external forces is broken off or in other ways is damaged.