Patent ID: 7597146

Claim:
A method for providing fluidic access to an outer annulus of a casing string within a well bore comprising: providing an apparatus comprising a casing hanger, the casing hanger comprising a fluid port wherein the fluid port provides fluidic access to the outer annulus by allowing fluid to pass through the casing hanger, a landing sub attached to the casing hanger, an isolation device attached to the landing sub wherein the isolation device is adapted to allow fluidic isolation of a portion of the landing sub, and a mechanical slip disposed above the isolation device engaged with a subsurface section of the well bore, wherein the mechanical slip prevents floating of the casing string; landing the apparatus at the well bore wherein the isolation device provides fluidic isolation of a portion of the outer annulus; introducing a cement slurry into the outer annulus via the fluid port; and allowing the cement slurry to set up in the outer annulus.