OT31030 - General Appendix
OT Manual, Deviated Drilling
Deviated Drilling
Two examples of deviated drilling are:
- Where a well is exhausted or dry, part of
the existing well structure may be used to drill another well,
e.g.
- Seabed
- Second well, (lower area of original well.
Original Well will be plugged)
- Sub-sea templates have been used for
development wells (and are beginning to be used in appraisal
wells). The template is secured to the sea-bed and connected by
pipes to the rig (or platform). From the template several wells can
be sunk at varying angles:
Deviated Drilling
Diagram
