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:
Aug. 29, 2023
Filed:
Dec. 17, 2021
Welltec Oilfield Solutions Ag, Zug, CH;
Jørgen Hallundbæk, Zug, CH;
Welltec Oilfield Solutions AG, Zug, CH;
Abstract
A downhole completion system includes a well tubular metal structure having an inner face, and a first, second and third annular barriers, each annular barrier having a tubular metal part mounted as part of the well tubular metal structure, an expandable metal sleeve surrounding the tubular metal part, each end section of the expandable metal sleeve being connected with the tubular metal part, an annular barrier space between the tubular metal part and the expandable metal sleeve, and an expansion opening in the tubular metal part and a fluid channel fluidly connecting the expansion opening and the annular barrier space through which pressurised fluid passes for expanding the expandable metal sleeve and bringing the annular barrier from an unexpanded position to an expanded position. The second annular barrier is arranged in between the first annular barrier and the third annular barrier, and the second annular barrier is configured to expand at a lower pressure than the first and third annular barriers.