Patent ID: 7784552
Filing Date: 2010-08-31
Classification: E21B

Abstract:
1. A method of installing a liner in a well, comprising: (a) making up a string of liner with a bottom hole assembly sub on a lower end; (b) making up a string of drill pipe with a bottom hole assembly, including a drill bit on a lower end, and a telescoping sub having an adjustable length above the bottom hole assembly, wherein the telescoping sub has upper and lower portions that are axially movable relative to each other, the telescoping sub having a non-torque transmitting mode wherein the upper portion is rotatable relative to the lower portion and a torque transmitting mode wherein rotation of the upper portion causes rotation of the lower portion, (c) lowering the drill pipe, the bottom hole assembly and the telescoping sub into the liner, and engaging the bottom hole assembly with the bottom hole assembly sub such that torque may be transmitted between the bottom hole assembly and the bottom hole assembly sub; (d) connecting a running tool to the drill pipe, adjusting the length of the telescoping sub so as to align the running tool with an upper end of the liner, placing the telescoping sub in the non-torque transmitting mode, engaging the running tool with the upper end of the liner such that the running tool supports the weight of the liner and torque may be transmitted between the liner and the running tool; (e) making up additional drill pipe to the running tool and lowering the liner on the drill pipe through previously installed casing of the well; (f) rotating the drill bit to drill the wellbore deeper and advancing the liner deeper into the wellbore; (g) when at a desired depth, disengaging the bottom hole assembly from the bottom hole sub and the running tool from the liner and retrieving the bottom hole assembly and the running tool; and (h) cementing the liner in the wellbore.