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:
Oct. 13, 2020

Filed:

Oct. 22, 2015
Applicant:

Eni S.p.a., Rome, IT;

Inventors:

Claudio Molaschi, Crema, IT;

Alberto Maliardi, San Donato Milanese, IT;

Alessio Nista, Spinea, IT;

Assignee:

ENI S.p.A., Rome, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 29/08 (2006.01); E21B 33/06 (2006.01); E21B 29/00 (2006.01); E21B 33/00 (2006.01);
U.S. Cl.
CPC ...
E21B 29/08 (2013.01); E21B 33/06 (2013.01); E21B 29/00 (2013.01); E21B 33/00 (2013.01);
Abstract

A safety valve assembly for extradition of hydrocarbons includes a valve body including a passage duct, configured to be traversed by a production and/or drilling line. The valve body includes housings for a punch and counter-punch, arranged diametrically opposite to one another with a common longitudinal axis substantially perpendicular to the longitudinal axis of the valve. The punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe, and the counter-punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe. The punch and counter-punch are configured to allow the counter-punch to slidingly receive the punch in its interior to create two different shearing planes. The counter-punch includes a hollow part to slidingly receive the section of tubular material and the punch, in the linear movement during the shearing operation.


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