Wellbore Stability and Rock Mechanics
Highlights:
This course is designed to explain problems related to borehole stability using modern Rock Mechanics techniques. The course is suitable for both drilling and petroleum engineers
Objectives:
To provide a thorough understanding of wellbore stresses, principles of rock mechanics and wellbore stability. To be able to calculate safe mud weights. Use well logs to determine essential rock properties.
Content:
- Rock behaviour and measurement of rock properties
- Basic stresses and strains
- Stresses due to drilling a well
- Stress transformations for horizontal and multi-lateral wells
- Mohr envelope
- Failure criteria
- Triaxial rock testing
- Borehole rupture mechanics
- Hole collapse mechanisms
- Safe mud weights envelope
- Earth stress measurements
- Stuck pipe problems
- Designing a perfect well with the earth stresses
- Effects of reservoir compaction
- Production effects
- Sand production
