Patent ID: 8439113
Filing Date: 2013-05-14
Classification: E21B

Abstract:
1. A method of installing a liner in a well having at least one casing string, comprising: (a) making up a liner string with a liner hanger assembly at an upper portion of the liner string, a profile sub at a bottom portion of the liner string, and a bottom hole assembly latched to the profile sub, the bottom hole assembly including a drill bit; (b) securing a lower end of a drill pipe string to an upper portion of the liner string and lowering the liner string on the drill pipe string until the drill bit reaches a bottom of the well, then rotating the drill bit to drill the well deeper; (c) at a selected depth, releasing the bottom hole assembly from the profile sub and reverse circulating drilling fluid from a liner annulus surrounding the liner string, thereby pumping the bottom hole assembly up the liner string; (d) when the bottom hole assembly reaches the lower end of the drill pipe string, latching the bottom hole assembly to a catcher tool located at the lower end of the drill pipe string; (e) moving the liner hanger assembly into setting engagement with the casing string to support the weight of the liner string; and (f) releasing the drill pipe string from the liner string and retrieving the drill pipe string along with the bottom hole assembly; detaching the catcher tool from the lower end of the drill pipe string and attaching a cementing tool to the drill pipe string, re-running the drill pipe string back into the casing, and securing the cementing tool to the liner hanger assembly; then pumping cement through the drill pipe string and the cementing tool into the liner string and back up the annulus to cement the liner string in the well.