Acid Stimulation: Principles, Design
&
Field Applications
Duration: 5 Days
Target Audience: Reservoir Engineers, Stimulation Engineers, Production Engineers, Completion Engineers, Field Engineers
Delivery Mode: Classroom / Virtual with Design Workshops, Case Studies, and Best Practices Discussions
Level: Intermediate to Advanced
Course Overview
This course covers the principles and practices of acid stimulation for enhancing well productivity. It explores acid types, reaction mechanisms, treatment design, fluid placement techniques, and post-treatment evaluation. Participants will gain the knowledge to plan and execute effective acidizing jobs in carbonate and sandstone reservoirs.
Day-by-Day Outline
Day 1 – Fundamentals of Acid Stimulation
- - Objectives of acidizing: matrix acidizing vs. fracture acidizing
- - Reservoir considerations: formation mineralogy, permeability, damage mechanisms
- - Acid-rock reactions in carbonates and sandstones
- - Types of acids: HCl, HF, organic acids, and blended systems
- - Exercise: Identify suitable acids for different reservoir types
Day 2 – Acid Treatment Design
- - Data requirements: reservoir properties, damage evaluation, production data
- - Acid concentration, volume, and rate selection
- - Additives: corrosion inhibitors, iron control agents, surfactants
- - Compatibility and precipitation issues
- - Workshop: Calculate acid volumes and concentrations for a sample well
Day 3 – Fluid Placement Techniques
- - Bullheading, coiled tubing, and pumping techniques
- - Diversion strategies: mechanical and chemical diverters
- - Acid placement challenges in deviated and horizontal wells
- - Preflush and overflush design considerations
- - Exercise: Design a placement strategy for a carbonate well
Day 4 – Execution & Field Procedures
- - Surface equipment setup and job preparation
- - Safety considerations: handling, storage, and transport of acids
- - Pumping schedules and real-time monitoring
- - Wellhead pressure management during acidizing
- - Workshop: Develop a detailed job program for an acidizing operation
Day 5 – Post-Treatment Evaluation & Case Studies
- - Evaluating acidizing effectiveness: production testing and well logging
- - Pressure transient analysis post-stimulation
- - Common issues and troubleshooting
- - Field case studies of acid stimulation successes and failures
- - Capstone Project: Create a comprehensive acid stimulation plan for a candidate well
Expected Learning Outcomes
- Understand acidizing principles and reservoir considerations
- Design acid treatments for carbonate and sandstone reservoirs
- Plan fluid placement and pumping strategies
- Execute acid jobs safely and effectively
- Evaluate treatment results and apply lessons learned to future acidizing operation
Training Methods
- Classroom instruction and interactive discussions
- Case studies and exercises with real-world data
- Excel-based economic models and production forecasts
- Software demonstrations
Customization for Regional Needs
- Examples from regional onshore/offshore fields
- English delivery option available
- Integration with national regulatory framework
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