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:
Mar. 05, 2024
Filed:
Aug. 17, 2020
Fmc Kongsberg Subsea As, Kongsberg, NO;
Sigurd Moe, Kongsberg, NO;
John A. Johansen, Kongsberg, NO;
Abstract
A method of operating a subsea production system (), the system comprising a subsea tree () connected to a subsea well (), a production tubing () in the well (), and an electrically operable electric downhole safety valve (), wherein the method comprises, in case of malfunction in operation of the electric downhole safety valve (), the steps of installing a hydraulically operable insert hydraulic downhole safety valve () within the production tubing (); connecting the insert hydraulic downhole safety valve () to the fluid line () at a point of setting () in the subsea well (); operating the insert hydraulic downhole safety valve () by using the fluid line () which extends from an input port () at a position outside of the subsea tree ().