Course content

The topic covers in depth methods for planning extended reach and horizontal wells. This covers; survey calculation techniques, directional surveying techniques, survey errors, selection of bottom hole assembly,stuck pipe and fishing,torque and drag analysis in bore holes, flotation of casing and liners and loads on the drill string. The course also covers innovative drilling techmiques like use of coil tubing, snubbing, underbalanced drilling (UBD) and managed pressure drilling(MPD).

Learning outcome

Knowledge:
The student should have knowledge about:
- Extended reach and horizontal well construction.
- Drill string and bottom hole assembly design.
- Wellbore hydraulics.
- Wellbore placement.
- High Temperature/High pressure drilling techniques.
- Deepwater drilling implications.
- Torque and drag analysis.
- Underbalanced and managed pressure drilling techniques and equipment.
- New and innovative drilling techniques.

Skills:
The student is able to:
- Planning of drilling high deviated and horizontal wells.
- Calculate loads in drill string and down hole equipment.
- Perform hydraulic pressure loss calculations.
- Calculate wellbore placement.
- Planning of underbalanced operations.
- Evaluation of new and innovative drilling techniques.

General competence:
Basis for MSc/Drilling Engineering.

Learning methods and activities

Lectures and exercises. The course is held in English if international masterstudents attend. If the teaching is given in English, the examination papers will be given in English only. Students are free to choose Norwegian or English for written assessments. The exam can be changed from written to oral at the postponed exams (continuation exam).

Compulsory assignments

• Exercises

Recommended previous knowledge

Basics in drilling engineering.

Course materials

Compendium. Relevant textbooks will be announced at semester start.

Credit reductions