Liner hanger and method for installing a wellbore liner

摘要

A liner hanger assembly to run-in a liner on a liner hanger, cement the liner in place and set the liner hanger in one trip. Then, a wellbore treatment process can proceed while the running string remains downhole or via a second trip. The liner hanger assembly includes a liner hanger running tool and a liner hanger.

主权项

1. A liner hanger assembly comprising:
a liner hanger running tool and a liner hanger;
the liner hanger running tool including:
a tubular body including a base end for connection to a running string, an outboard end and an inner diameter;a connector on the outboard end for releasably engaging the liner hanger, the connector including a first J-type connection structure; and the liner hanger including:
a mandrel with an outer surface, an upper end including a running tool connector including a second J-type connection structure for releasable connection with the first J-type connection structure, a lower end including a liner connector and an inner bore passing through the mandrel, extending from the upper end to the lower end;a setting mechanism on the outer surface for setting the liner hanger in a well; anda hydraulic piston for driving the setting mechanism to set in response to a pressure applied through the inner bore and communicated to the hydraulic piston.