Horizontal & Multilateral Drilling Wells

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 curve, calcu¬late torque and drag, understand kick off methods, compile a drilling and completion programme and estimate wellbore stability mud weights.

Course content

• Geology and reservoir considerations
• How to select and screen horizontal wells
• Target Considerations: Dimensions, Azimuth, target area, markers
• 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