Slim hole Wells - Overview
Wells can now be safely and effectively drilled or sidetracked, evaluated and completed in small diameters down to 4 1/8". The resulting slim wells can provide a total well cost reduction of 30%. At the same time, crew exposure, location size, cuttings and waste mud volumes are drastically reduced.
1. Introduction
A definition of a slim well is any engineered well with a hole size at total depth of 4 3/4" or less.
Many of the advances in technology now enable small diameter wells and sidetracks to be drilled . . .