Casing Setting Depths Casing setting depths found in Drilling Programmes fall into two categories:
1. Those where the casing is set at a specific marker (ie., formation above reservoir).
2. Those where the casing is set at a convenient point in the total well path.
The casing setting depths in 1. are absolute and the hole shall be drilled to the depth indicated and casing set as specified in the Drilling Programme.
The casing setting depths in 2. are not absolute and it may be possible to set casing where . . .