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:
Sep. 25, 2018

Filed:

Mar. 02, 2016
Applicant:

Interwell As, Hafrsfjord, NO;

Inventors:

Helge Salomonsen, Hafrsfjord, NO;

Trond Eidebakk B. Lunde, Hundvåg, NO;

Arild F. Stein, Sandnes, NO;

Assignee:

Interwell AS, Hafrsfjord, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/04 (2006.01); E21B 33/076 (2006.01); E21B 33/038 (2006.01);
U.S. Cl.
CPC ...
E21B 41/04 (2013.01); E21B 33/038 (2013.01); E21B 33/076 (2013.01);
Abstract

A device for setting and retrieving a crown plug in a well head. The device has a mandrel device, an outer housing device, a snap sleeve device downwardly protruding from the lower end of the mandrel device and a locking element. The device has an upper plug connection device and a lower plug connection device for connection to the upper connection interface and a lower plug connection device of the crown plug, respectively. An annular compartment is provided radially outside at least parts of the locking element and radially inside a lower end section of the mandrel device. An upper end of the snap sleeve device is provided axially displaceable in the annular compartment. The lower plug connection device may be configured between a locked state and an unlocked state by axial displacement of the snap sleeve device in relation to the locking element.


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