Horizontal/Multilateral Well Technology
Objectives:
At end of course, participants will be: able to identify candidates wells for horizontal drilling, design horizontal and multilateral well profiles, Understand single and double build curveCalculate torque and drag, Understand kick off methods, Compile a drilling and completion programme, Estimate wellbore stability mud weights
Content:
- Geology and reservoir considerations
- How to select and screen horizontal wells
- Target Considerations : Dimensions, Azimuth , target area, markers
- Effects of dip angle on final hole angle and hole TVD
- Profile design and well path calculations : Example from Oman
- Drill string design: Torque, drag, buckling calculations
- Mud systems
- Kick off techniques
- Drillbits and coring
- Rock Mechanics and Wellbore stability : Actual Example from North Sea
- Hole Cleaning
- New drilling Methods: ERD, UBD , CT , Intelligent MWD systems
- Logging and perforating horizontal wells
- Completion methods: zonal isolation, multilateral considerations
- Formation damage and cleaning
- Workover considerations
- A Complete Well Design
- Exercise and presentation
