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:
Aug. 20, 2019

Filed:

Apr. 08, 2016
Applicant:

Fmc Kongsberg Subsea As, Kongsberg, NO;

Inventors:

Tor-Øystein Carlsen, Kongsberg, NO;

Trond Løkka, Notodden, NO;

Assignee:

FMC Kongsberg Subsea AS, Kongsberg, NO;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 21/00 (2006.01); E21B 33/035 (2006.01); E21B 33/076 (2006.01); E21B 21/10 (2006.01);
U.S. Cl.
CPC ...
E21B 33/035 (2013.01); E21B 21/001 (2013.01); E21B 21/10 (2013.01); E21B 33/076 (2013.01);
Abstract

A closed operation subsea well tool assembly with a flushing system flushing a first fluid in the main bore () of the tool assembly (). The flushing system of the tool assembly comprises a container () with a second fluid, a pump (), a swab valve () in the top of the main bore (), an inlet () in the bottom of the main bore of the tool assembly, which is connected to the pump. Outlet(s) () are below the swab valve, configured to guide out the first fluid from the main bore. A fluid channel () extends from the outlet () and down to channels of the wellhead module () or the wellhead (). Methods using the tool assembly are also disclosed.


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