Running and Testing Casing
To ensure that the casing is run efficiently to the correct depth and in the desired condition, specific equipment and techniques should be considered in the design phase.
1 Rig hoisting capacity
The casing designer should be aware of the hoist capacity of the rig which is to drill the well. Where deep, heavy strings are required, it may be necessary to set a liner and tie-back instead of a complete string. Alternatively, the drilling sequence may be rearranged to allow the use of a larger rig for a particular well. Floating . . .