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:
Nov. 25, 2025
Filed:
Nov. 19, 2019
Chevron Australia Pty Ltd., Perth, AU;
Alireza Mazaheri, Cottesloe, AU;
Farhad Rezvaninejad, Applecross, AU;
Chevron Australia Pty Ltd., Perth, AU;
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A coupling is disclosed for making subsea connections that mates with an interlocking coupling. The surface of the end of the coupling that mates with the interlocking coupling includes a recess and a groove. A primary seal is provided for fitting into the recess and a metal seal is provided for fitting into the groove. The coupling body includes a primary test port passage between the space external to the coupling and a location along the surface adjacent the recess, and a secondary test port passage between the space external to the coupling and a location along the surface radially between the recess and the groove. A method for installing a subsea pipeline or riser system is disclosed that utilizes the coupling and the interlocking coupling. The method allows for the elimination of the conventional practice of flooding, hydrotesting and dewatering.