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. 31, 2026
Filed:
May. 14, 2024
Silverwell Technology Ltd, Histon, GB;
Joel David Shaw, Houston, TX (US);
Silverwell Technology Limited, Cambridge, GB;
Abstract
A contingency valve provides redundancy to a surface controlled flow control valve for blocking flow into production tubing from a surrounding annulus when the surface controlled flow control valve is not operational. The surface controlled flow control valve and the contingency valve are disposed in an eccentric portion of the production tubing, and include valve members that are selectively disposed in a path of the flow within a sidewall of the production tubing. Valve members in the contingency valve are urged into the flow path by pressurizing hydraulic fluid downhole or by using a shifting tool. The types of surface controlled flow control valves include an inflow control device, an inflow control valve, and a gas lift valve.