Downsized conventional drilling - Slim Hole Wells
Downsized conventional drilling is the use of a fit-for-purpose rig to drill conventionally a well with a reduced casing scheme ending in 4 3/4" or smaller open hole, possibly with a 3 1/2" production liner. The potential for downsizing oil wells in some fields, with cost savings of up to 35% with no loss of production.
1 Possible applications 1.1 High pressure/high temperature wells
In HP/HT wells the ability to drill and evaluate small diameter holes can lead to a significant reduction in well . . .