Coiled Tubing Operation

Magdi El Naggar

This course is designed to introduce an overview of the coiled tubing operations concept and its applications in oil fields. It introduces a variety of coiled tubing technologies with special attention to the unit as surface equipment and downhole tools The course also covers the main components, application envelope, and coiled tubing special applications as well as the contingency plan for all possible situations which could be encountered throughout various operations. Moreover, the course provides better understanding, enhances knowledge and strengthens the decision-making capability of the participants about all types of wellbore treatments implemented to recover or enhance the well performance throughout presentations, case studies, group discussions and exercises as well as practical videos of actual cases.



Pre-Course Test

Module 1: Well Completion Types

  • Definition of well completion
  • Well completion Classification
  • X-masTree
  • Wellhead
  • Casings
  • Liners
  • Production Tubing String
  • Packers
  • Sub-Surface Control Systems (SC-SSSVs)
  • Wellhead Control System
  • Artificial lift completions (ESP, GL)
  • Smart Completions
  • Impact of well completion selection  on future well intervention operations in wells

Module 2: Well Completion Operations

  • Definition of well completion concept
  • Perforation
    • Types
    • Guns
    • Bullets
    • Phasing
    • TCP
  • Stimulation operation
    • Basics and concept
    • Candidates selection
    • Reservoir lithology  & impact on stimulation methodology
  • Hydraulic Fracturing

Module 3: Well Intervention Operations

  • Conventional:
    • Coiled Tubing Operations
      • Well kick-off operations
      • Stimulation
      • Scale Removal
      • Cement Squeeze
      • Fishing Operations
  • Well-killing & securing for well routine maintenance operations
    • Wireline (Slick, E-line)
    • Snubbing operations
    • Well Testing (PTS, MPFM)
  • Non-Conventional:
    • Well Control
    • Emergency
  • Impact of well completion and well intervention operations

Module 4: Introduction to the Coiled Tubing Unit

  • Introduction
  • Coiled tubing description
  • Coiled tubing equipment design
  • Coiled tubing applications
  • Coiled tubing advantages
  • Coiled tubing disadvantages
  • Group discussion & exercises


Quizzes & recap

Module 5: Coiled Tubing Surface Equipment

  • Depth meter
  • Gooseneck
  • Injector head
  • Coiled tubing reel
  • Prime movers
  • PowerPack
  • Stripper (conventional, side door)
  • BOP

Module 6: Surface Equipment Handling & Testing Procedures

  • Depth meter
  • Injector head
  • Reel
  • Power pack
  • Control cabin
  • Pressure control equipment
  • BOP
  • Stripper (conventional, side door)
  • RTMS
  • Auxiliary surface equipment

Module 7: Coiled Tubing Downhole Tools

  • Standard threads
  • Gripper connectors
  • Connectors
  • Check valves
  • Nozzles & Jetting subs
  • Swivel joint
  • Release joints
  • PRV
  • Centralizers
  • Accelerators
  • Jars
  • Overshots
  • Spears
  • Downhole Tractor

Module 8: Pre-Job Safety Procedures

  • General requirements
  • General HSE aspects
  • PTW
  • TBM
  • Coiled tubing well control drill


Quizzes & recap

Module 9: High-Pressure Coiled Tubing
Module 10: Coiled Tubing Applications

  • Matrix treatment
  • Logging operations (open hole, Cased hole)
  • Drilling contingencies
  • Squeeze cement
  • Under reaming/milling
  • Inflatable packers and bridge plugs
  • Coiled tubing drilling
  • Coiled tubing completion
  • Well Kick-off
  • Fill Cleaning
  • Scale removal
  • Well control/killing
  • Excessive water/gas shut-off
  • Fishing operations
  • P&A
  • Artificial lift
  • Sands/non-cementitious materials placement
  • Case Studies
    • Matrix treatment operations
    • Logging Operations
    • Cement Squeeze Operations
    • Mill & under-reaming operations
    • Fill Cleaning 
    • Scale removal operations
    • Fishing operations of downhole lost tools
    • Well kick-off & Activation
    • Cement squeeze Operation

Module 11: Coiled Tubing Operation Procedure

  • Pre-Job requirements
  • Scaffolding
  • Pre-job equipment requirements
  • Coiled tubing rigging-up & function testing
  • Treating line rigging-up & testing
  • General running procedures
  • Operational procedures:
    • Well Control/Killing
    • Well Kick-off
    • Nitrogen properties & uses
    • Fill cleaning
    • Scale removal
    • Excessive water/gas shut-off
    • P&A
    • Well stimulation
  • Production logging pressure deployment procedures
  • Fishing operations
  • Rigging down and HSE requirements
  • Coiled tubing stability during mobilization

Module 12: Coiled Tubing Technical Data

  • Definitions
  • Coiled tubing operating limits
  • Burst pressure
  • Collapse pressure
  • Coiled tubing ovality
  • Fatigue and corrosion
  • Stress and strain
  • Forces affecting the coiled tubing performance
  • Buckling
  • Depth correction and stuck point calculations
  • Helicallock-up
  • Catastrophic buckling


Quizzes & recap

Module 13: Coiled Tubing Contingency Procedures
Module 14: Coiled Tubing Operational Troubleshooting & Case History
Module 15: Coiled Tubing Maintenance
Module 16: Reservoirs and Rock Properties

  • Definition of Reservoir
  • Reservoir Heterogeneities
  • Reservoir Characteristics:
    • Porosity
    • Permeability
    • Relative Permeability
    • Saturation
    • Natural Fracturing
    • Pressures
    • Reservoir Pressure
    • Basic Pressure calculations
    • Pressure Differential
    • Well Temperature
    • Drilling Fluids
    • Completion Fluids

Module 17: Formation Damage

  • Types of formation damage
  • Scaffolding
  • Classification of Formation damage by process
  • Sources of formation damage
  • Skin and impact on well productivity
  • Formation damage laboratory tests (return permeability test, formation
  • an initiation pressure test, cake lift-off test, etc.)
  • Formation damage from drilling mud/processes
  • Formation damage from perforations
  • Formation damage from completion and Workover fluid
  • Formation damage from oil and gas production activities
  • Formation damage from scales
  • Formation damage from organic deposits
  • Formation damage from Wettability changes
  • Formation damage from Acid stimulation
  • Formation damage from Injection (water injection, C02 injection, polymer flooding, steam flooding)
  • Case Studies
    • Well productivity sudden decline and identifying proper treatment requirements
    • Production profile slope change& how to use the data in defining the problem
    • Utilizing a production history graph to detect the damage
    • How to use PBU/PFO tests to identify the skin factor as an indicator for formation damage.
    • Partial penetration and slanted skin effect
    • Impact of perforation skin factor


Quizzes & recap

Module 18: Stimulation of Sandston Reservoir

  • Why stimulate a Sandstone reservoir?
  • Sandstone reservoir description- mineralogy
  • Acid formulation and lab tests e.g., acid response curve, compatibility test, return permeability test, etc.
  • How much overflush is required
  • How to avoid fluoride precipitation in sandstone stimulation
  • Case study

Module 19: Stimulation of Carbonate Reservoir

  • Why stimulate a carbonate reservoir?
  • Carbonate reservoir description - mineralogy
  • Acid formulation and lab tests e.g., acid response curve, compatibility test, return permeability test, etc.
  • What is the big deal about wormholes?
  • How to ensure the best acid coverage? Open hole? Cased hole?
  • Acid placement in heterogeneous reservoir? Use of diverting agents
  • How to ensure the best zonal coverage?
  • Practical guidelines on how to select and evaluate acid treatment
  • Case study

Module 20: Sand Control Completion Overview

  • Sand production problem
  • What are the consequences of sand production?
  • Sand Detection
    • Sand monitoring
    • Measuring Sand production
  • Sand Prediction and Monitoring
    • What causes sand production?
    • Types of sand failure
    • How to predict sand production in new wells
    • How to predict sand failure during well production
  • Sand Control Completion
    • Selective perforation method
    • Cased hole gravel pack
    • Frackpack
    • Perforating for sand control
    • Frac pack completion: the success of a frac pack, frac pack limitations,
    • Frac pack fluids, frac pack installation, and treatment procedure
    • Gravel pack I Frac pack evaluation
    • Sand Control field operations step

Case study
Pre-Course test

  • Understand the fundamentals & concept of the coiled tubing unit
  • Increase awareness and knowledge of the coiled tubing operations and factors affecting its performance.
  • Acquire necessary knowledge of the coiled tubing operational techniques, technologies and equipment.
  • Understand alternate deployment scenarios and multisensory applications for surveillance and optimization.
  • Possess the basic skills required to select and implement various coiled tubing techniques as per operational requirements.
  • Be able to handle various coiled tubing emergency situations, plan its operations, and monitor and analyze its performance.
  • Learn strategies and best practices for coiled tubing operations optimization
  • Understand the geological and basic reservoir properties 
  • Understand the formation damage concept and mechanism Understand the effect of formation damage on the revenue of the operator
  • Understand the impact of skin damage effect on productivity for both vertical and horizontal wells. 
  • Gain knowledge about various types of wellbore treatments to remove formation damage.
  • Acquire knowledge on  how  to select the  best fluid  (less damaging)  at every phase  of the  well  development:  drilling, completion, cementing, perforating, stimulation, gravel packing, workover, production and injection operations

Who should join Coiled Tubing Operations training course by PetroSync?

  • Production Engineers with 0-10 Years Experience
  • Drilling Engineers with 0-10 Years Experience
  • Petroleum Engineers with 0-10 Years Experience
  • Coiled Tubing Operators with 0-10 Years Experience
  • Operations Supervisors with 0-10 Years Experience
  • Field Service Engineers with 0-10 Years Experience
  • Field Operations Engineers with 0-10 Years Experience
  • Reservoir Engineers with 0-10 Years Experience
  • Coiled Tubing Supervisors with 0-10 Years Experience
  • Operations Engineers with 0-10 Years Experience

Magdi El Naggar

Managing Director

Magdi El Naggar is officially Certified as Professional Petroleum Engineering Consultants (License 116/7). He has 46 years of professional experience n various phases of Petroleum Engineering including Petroleum/Reservoir/Production/Drilling & Workover Engineering as well as field operations with several multi-national international companies including ARAMCO (Saudi Arabia) and ADNOC (UAE). He has extensive professional experiences in all phases of well intervention operations including coiled tubing, especially during well emergency cases, well control and extended reach operations.

He specialized in well intervention operations, especially, during emergency cases and well blowouts. He also has extensive experiences in full field development studies, Production Enhancement for oil fields as well as various types of wells, CO2 Injection and EOR operations, IWCF & IADC certification.

  • Code PST0335-202301
  • Start Date 02 Jan, 2023
  • End Date 06 Jan, 2023
  • Locations Kuala Lumpur, Malaysia
  • Cost USD 2995
Code Start Date End Date Locations Cost Instructor Register
PST0335-202301 02 Jan, 2023 06 Jan, 2023 Kuala Lumpur, Malaysia USD 2995 Magdi El Naggar