Description

Designed for you, if you are...

• A petroleum engineer, production engineer, CT supervisor or operations supervisor
• A manager wanting to get more familiarized with stimulation and CT
• A reservoir engineer, petrophysicist or foreman connected with stimulation operations

How we build your confidence

• The course will be presented using PowerPoint slides, some with animation and several videos on relevant issues.
• Teaching methods include calculations on related issues.
• Several examples of actual stimulation programs will be presented.
• Questions related to the course content will be sent daily per email to the course attendants, who will answer by return e-mail (optional).

The benefits from attending

• Introduction to stimulation operations
• Formation damage mechanisms and their identification
• Brainstorming on skin damage
• Acid reactions and their selection for carbonates and sandstones
• Acids and additives used in matrix stimulation
• Candidate well selection
• Acid treatment design
• Acid placement and diverting technologies
• Using coiled tubing for acid placement, displacement, and flow back
• Laboratory tests
• Acid fracturing design basics
• HSE and acidizing operations
• Safety & quality assurance
• Well integrity principles
• Coiled tubing and its importance in stimulation operations

Topics

• Introduction to acidizing
• Acidizing of carbonates and sandstones
• Acid fracking overview
• Damage caused by well operations
• Well candidate selection process (overview)
• Why there are failures in acidizing?
• Acid treatment design overview
• Types of damage
• Monitoring the acid backflow
• HCL acid by-products
• Capturing data, before, during and after the job
• Acid reactions with OBM (Oil Base Mud)
• Emulsions
• Formation damage and other considerations
• Formation damage mechanisms
• Matrix acidizing

• Sandstone versus carbonate acidizing
• Typical treatment execution
• Fracture acidizing
• Proppant fracturing versus fracturing
• Economic impacts of well stimulation
• Acid types / reactions / methods
• Fluid injectivity on test core
• Types of acid
• Acid formulations
• Organic acids
• Acid dispersion
• Viscosified acid
• Acid emulsions
• VES acid
• VES-HCL: gelling and breaking
• HCL reactions with carbonates
• HCL / HF acids

• Acid reactions
• Rates of reaction
• Carbonate acidizing
• Sandstone acidizing
• Binary acids
• Dissolving power of acids
• Molecular weights
• Treatment evaluation
• Post-job procedure
• Pressure response during acid treatment
• On-site evaluation of treatment effectiveness
• The Paccaloni technique
• Sandstone acidizing using a protective Ion Agent (technique researched and developed in Oman)
• The disadvantage of using HCL/HF
• The concept behind this technique
• On job charts for job monitoring
• Recording of a stimulation job
• Pressure build-up analysis before and after acidizing
• Main components of a CT Equipment Package

• No acidification without coiled tubing
• Coiled tubing conveyance and intervention methods
• Downhole well tractor
• CT insertion and removal under pressure
• High displacement rates in formation with good permeability without limitation from CT friction pressures
• Wireline and CT intervention methods
• Fishing with CT
• Main fishing tools
• Job design data for fishing operations
• Well plug & abandonment
• Emergency procedure in case of CT failure
• Building safety commitment