Course Objectives:

By the end of this training, participants will be able to:

1. Introduction to Well Intervention

• Understand the concept of well intervention, its purpose, and its importance in maintaining and enhancing well performance.
• Differentiate between various types of well intervention methods, such as mechanical intervention, hydraulic intervention, and coiled tubing operations.
• Learn the stages of well intervention: planning, execution, and post-operation analysis.
• Discuss the common challenges faced during well intervention, including well integrity issues, safety risks, and technical limitations.

2. Coiled Tubing Fundamentals

• Understand the principle of coiled tubing and its application in well intervention operations.
• Learn about coiled tubing equipment, including the coiled tubing unit (CTU), injector heads, reel, and pressure control equipment.
• Study the different sizes, materials, and design considerations for coiled tubing based on well type and operational requirements.
• Understand the basic working mechanisms of coiled tubing, including its ability to be deployed into the wellbore without the need for a rig.

3. Coiled Tubing Applications in Well Intervention

• Study the key applications of coiled tubing in well intervention, including:
• Wellbore Cleanout: Removing debris, scale, and formation solids from the wellbore to restore production.
• Acidizing and Stimulation: Injecting acids, chemicals, or other fluids to enhance well productivity.
• Logging and Well Monitoring: Performing well logging operations to assess the condition and performance of the well.
• Perforating: Using coiled tubing to deliver perforating guns to specific depths for creating or enlarging perforation tunnels.
• Fishing: Recovering lost or stuck equipment from the wellbore, such as tools or tubing.
• Plugging and Abandonment: Using coiled tubing to set plugs or cement for well abandonment operations.

4. Equipment and Tools Used in Coiled Tubing Operations

• Study the various tools and equipment used in coiled tubing operations, including:
• Coiled Tubing Unit (CTU): The primary equipment used for deploying and retrieving coiled tubing.
• Injector Head: The device that applies force to inject coiled tubing into the wellbore.
• Pressure Control Equipment (PCE): Equipment used to manage well pressure during coiled tubing operations, such as blowout preventers (BOPs) and lubricators.
• Downhole Tools: Perforating guns, milling tools, scrapers, and other tools used for specific well interventions.
• Fluid Pumps and Mixing Units: Systems used for pumping various fluids, including acid, chemicals, or water, into the wellbore during interventions.

5. Safety Considerations in Coiled Tubing Operations

• Study the safety risks associated with coiled tubing operations, including high-pressure hazards, well control, and equipment failures.
• Learn about the safety measures to mitigate risks, such as using blowout preventers (BOPs), proper well control practices, and adhering to standard operating procedures (SOPs).
• Understand the importance of risk assessment and hazard identification during the planning stages of coiled tubing operations.
• Discuss emergency response plans and safety protocols for dealing with potential incidents during well intervention.

6. Well Intervention Planning and Execution

• Learn how to plan a coiled tubing intervention, including:
• Site Assessment: Evaluating well conditions, equipment requirements, and operational constraints.
• Job Design: Determining the appropriate coiled tubing technique, tools, and fluids based on well objectives and conditions.
• Job Execution: Understanding the sequence of operations, including deployment, fluid injection, and monitoring.
• Study real-time monitoring techniques to ensure the successful execution of well interventions.
• Discuss the importance of communication between the intervention team and the customer throughout the operation.

7. Coiled Tubing Well Integrity and Well Control

• Study the role of well integrity in coiled tubing operations, focusing on preventing damage to the wellbore, tubing, and formation.
• Learn about common well integrity issues, such as leaking casing, tubing corrosion, and formation damage, and how to address them during coiled tubing operations.
• Understand well control procedures, including monitoring well pressure, managing flow rates, and handling kick and blowout situations.
• Learn about blowout prevention systems (BOPs), pressure testing, and maintaining well integrity throughout coiled tubing operations.

8. Trouble-Shooting and Problem Solving During Coiled Tubing Operations

• Study common issues encountered during coiled tubing operations, such as tubing fatigue, stuck tubing, equipment failure, and pressure control problems.
• Learn diagnostic techniques to identify and resolve operational problems in real time.
• Explore advanced problem-solving methods for addressing challenges during coiled tubing operations, such as using mechanical workover, wireline, or other interventions.
• Understand how to perform post-job evaluations to identify any operational issues and implement corrective actions for future jobs.

9. Economic Considerations and Cost Management

• Understand the economic aspects of coiled tubing operations, including cost estimation, budgeting, and resource allocation.
• Learn how to evaluate the cost-effectiveness of well intervention jobs, considering factors such as job duration, equipment requirements, and downtime.
• Study how to optimize coiled tubing operations to reduce costs while maintaining safety, efficiency, and well productivity.

10. Case Studies and Real-World Applications

• Review case studies of successful coiled tubing operations in different types of wells (e.g., production wells, injection wells, deepwater wells, etc.).
• Discuss the challenges faced and solutions implemented in these real-world scenarios, such as addressing high-pressure environments, dealing with complex reservoir conditions, or overcoming stuck tools.
• Explore lessons learned from coiled tubing interventions and best practices for future operations.

Target Audience

This training is designed for professionals involved in the planning, execution, and management of well intervention and coiled tubing operations. The target audience includes:

• Engineers responsible for designing, planning, and executing well intervention operations, including the use of coiled tubing.
• Engineers with a focus on wellbore stimulation, pressure control, and well integrity during intervention.

• Technicians and operators who work directly with coiled tubing units and related equipment during well intervention.
• Operators responsible for the safe deployment and retrieval of coiled tubing in the wellbore, as well as fluid injection and monitoring.

• Managers overseeing well intervention projects, ensuring operational efficiency, safety, and cost-effectiveness.
• Supervisors responsible for coordinating coiled tubing operations, equipment setup, and personnel.

• Health, Safety, and Environmental Engineers focused on ensuring safety during coiled tubing operations, including well control and pressure management.
• Professionals involved in environmental risk management and regulatory compliance during well intervention.

• Engineers responsible for maintaining the equipment used in coiled tubing operations, such as pressure control devices, coiled tubing units, and downhole tools.
• Engineers with a focus on troubleshooting, repair, and upkeep of well intervention equipment.