Patent ID: 9303477
Filing Date: 2016-04-05
CPC Classification: E21B

Claim Text:
1. A method for installing and cementing a liner in a well, said method comprising: (a) running said liner into said well on a work string, (b) anchoring said liner to an existing casing in said well; (c) sealing said liner to said existing casing, said seal substantially preventing direct fluid flow around said liner to said existing casing from the annulus between said liner and said well; (d) releasing said liner from said work string; (e) raising said work string to provide a flow path inside said liner; (f) after completing the preceding steps, injecting cement into said liner and allowing said cement to flow into said annulus; (g) returning fluid displaced from said annulus by said cement through a port in said liner, said port being disposed downhole of said seal, and thence through said flow path established by said releasing of said liner and said raising of said work string; and (h) pulling said work string out of said well.