Patent ID: 7552779

Claim:
A completion method from a well surface, comprising: providing a plurality of landing locations within a tubular string each of which has a first half of a unique configuration unrelated to opening size therethrough; locating the tubular string in the wellbore; providing a plurality of plugs having a different second half of a unique configuration than each other unrelated to diameter to match a plurality of said first half unique configuration; landing said plugs in a specific ordered sequence so that more than one is landed in the string at the same time with one closer to the surface than another, said landing based on matching unique configurations between each plug and a counterpart configuration in the tubular; whereupon a portion of the wellbore between said at least two landed plugs is temporarily fluidly isolated from pressurized fluid delivered from the surface acting on the plug closer to the surface and from wellbore fluid acting on the plug further from the surface.