Patent ID: 8936077
Filing Date: 2015-01-20
Classification: E21B

Abstract:
1. A method of creating a profile in a first tubular comprising: covering a lower end of an interior wall of the first tubular, said interior wall comprising a uniform diameter at and above said lower end of said first tubular, with a material secured to said interior wall while leaving a passage defined by a uniform interior diameter over the length of said material fully open; expanding said material and said interior wall of said tubular adjacent said lower end with a swage driven toward and through said open passage to expand said interior wall and then said material to create an open-ended recess into which a second tubular can be located and expanded without reducing a drift dimension of said first tubular and without milling; reconstituting said material to release said material from said now expanded wall; exposing said previously covered lower end portion of said wall by said reconstituting; positioning said second tubular to the now exposed but previously covered lower end portion of said wall; attaching said second tubular to said first tubular at said lower end by expansion of said second tubular.