: Planning the path of the well, whether it is a standard vertical well or a complex directional or horizontal well .
: Choosing appropriate drill bits and drill string components tailored to specific rock formations and environmental conditions. Key Technical Disciplines Drilling Engineering
The field is inherently multidisciplinary, integrating concepts from several sciences: Baker Hughes Drilling Engineering Handbook : Planning the path of the well, whether
: Designing steel casing strings to provide structural support and isolating different geological formations to prevent fluid migration. Drilling Engineering