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:
May. 18, 2021
Filed:
Feb. 01, 2019
Welltec Oilfield Solutions Ag, Zug, CH;
Jon Kræmer, Zug, CH;
Welltec Oilfield Solutions AG, Zug, CH;
Abstract
A completion method for completing a well includes running of a second well tubular metal structure into the well to a position at least partly below a first well tubular metal structure, circulating cleaning fluid at a first pressure out through the second end to remove at least part of the mud, displacing cement at a second pressure down through the second well tubular metal structure into an annulus between the second well tubular metal structure and a wall of the borehole, pressurising the inside of the second well tubular metal structure to a third pressure above the first pressure and the second pressure breaking a breakable element in the valve assembly, which changes condition from the first condition to the second condition, further pressurising the inside of the second well tubular metal structure, expanding the expandable metal sleeve to abut the wall of the borehole.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile