US Patent 11008828 Completion method and completion system

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.