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:
Oct. 12, 2021
Filed:
Sep. 10, 2020
Welltec Oilfield Solutions Ag, Zug, CH;
Ricardo Reves Vasques, Zug, CH;
WELLTEC OILFIELD SOLUTIONS AG, Zug, CH;
Abstract
The present invention relates to an annular barrier system for completing a well with a well tubular metal structure, comprising the well tubular metal structure and a first annular barrier and a second annular barrier, each annular barrier comprising a tubular metal part having a bore and mounted as part of the well tubular metal structure, an expandable metal sleeve surrounding the tubular metal part, each end of the expandable metal sleeve being connected with the tubular metal part, and an annular space between the expandable metal sleeve and the tubular metal part, each annular barrier being introduced and set in the well to abut a wall of the well, providing a confined space having a confined pressure Pc between the wall, part of the well tubular metal structure, the first annular barrier and the second annular barrier, so that the first annular barrier isolates the confined space from a first annulus having a first pressure, and the second annular barrier isolates the confined space from a second annulus having a second pressure, wherein the annular barrier system comprises a valve system having a first position in which the bore is in fluid communication with the annular space of at least one of the first annular barrier and the second annular barrier in order to expand the expandable metal sleeve, and a second position in which the bore is in fluid communication with the confined space in order to perform barrier verification by pressurising the confined space.