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:
Jun. 14, 2022
Filed:
Mar. 08, 2019
Bossa Nova As, Indre Arna, NO;
Anthony Kent, Houston, TX (US);
Jan Tore Overanger, Garnes, NO;
Bosse Nova AS, Indre Arna, NO;
Abstract
Downhole well completion system for control of flow to or from multiple compartments () in a targeted subterranean reservoir (), comprising a plurality of interval control valves () connected in series forming a downhole string (), said interval control valves () are manipulated from surface via hydraulic control lines () to open or close flowports () of each interval control valve (), wherein each interval control valve () comprises a command module () connected to at least two of said hydraulic control lines (), a first hydraulic control line is a command line () to deliver applied pressure to the command module (), which translates hydraulic pressure signals into axial movement of an inner ratchet rod () that determines the position of an integral pilot valve (), a second hydraulic control line is a common-open or common-close line (), to provide hydraulic power to either open or close the flowports () of each interval control valve (), and the inner ratchet rod () comprises several ratchet teeth (), wherein the spacing of the ratchet teeth () determines the level of pressure, that must be applied to cause a command pawl () to engage the next ratchet teeth ().