Method and apparatus for installing casing in a borehole

Details Method and apparatus for installing casing in a borehole Method and apparatus for installing casing in a borehole

E - Fixed Constructions

21

B

E21B 23/04 (2006.01)

Patent

CA 2550093

An apparatus and method for installing casing into a wellbore is provided. The apparatus includes a piston assembly which is engagable with a casing string to be installed into a wellbore. The piston assembly works in conjunction with a previously installed section of casing in the wellbore to create a hydraulic piston system to aid in the installation of the casing string to which the piston assembly is attached into a wellbore. More particularly, the piston assembly in conjunction with an intermediate casing is used to aid in the installation of a casing string comprising production casing. A method of operating the piston assembly is also provided.

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