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ICTD International Centre for Training and Development

Successful Well Completion and Workover Practices: a Practical Approach From Design to Field Operations

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Description

Well completion is considered to be one of the most critical practices for reservoir exploitation and management. During this process, the responsible personnel is tasked to optimally design and install a system that can deliver its full potential to optimize oil, gas and production without compromising safety and reliability. During the field life cycle, some reservoirs undergo some physical and chemical changes. This leads to loss of revenue as the wells are no longer operating at their optimal conditions. Hence, workover and well intervention practices are required to safely and efficiently restore the wells back to the production.

This presents a lot of challenges due to the different reservoir fluids, different operating conditions and different operating environments.

This is a practical oriented course designed to bridge the knowledge gap in the area well completion and workover. It process the following features:

  • It is first of its kind in the industry.
  • It is loaded with practical examples, case studies and industrial applications from different operating
  • environment (land, swamp, offshore, including deepwater offshore) from different climates
  • It provides practical exercises. Delegates are followed up to ensure they can handle all the calculations, without difficulties.
  • It could be designed to meet the need of the clients on specific topics of interest.
  • In this course you will be given a field project to design. All the elements of the course will help you in your completion design.
  • Towards the end of the course the teams formed in the class will present their completion designs for discussions/reviews.
  • Delegates are allowed to come with their projects of interest, which they could substitute for the class field project design work.

This course focuses on different technological innovations to optimize reservoir drilling and completion practices, to improve well productivity. It provides practical exercises and industrial applications from different operating environment (land, swamp, offshore, including deepwater offshore). It covers different types of completion design and installations. In addition, in-depth discussions on the emerging techniques would be covered.

Course Objectives

Upon successful completion of this course, the delegates will be able to:

  • Identify and understand the parameters that influence the selection and design of completion components
  • Integrate the importance of completion process to future production
  • Deliver techniques to select the best tubing size and best materials for well completion
  • Gain practical methods to design, plan and install safe and efficient well completion and workover
  • Manage well environments with extreme reservoir conditions (pressure, temperature, etc)
  • Bridge the importance of well design in relation to the ability to carry out well intervention
  • Explore new technological developments in well completions and workovers
  • Plan an appropriate intervention and workover strategy to maintain or increase the field production

Course Outline

Day 1

  • Course Introduction
  • Starter quiz
  • Review of starter quiz
  • Introduction to Completion
  • Darcy law and skin
  • Well performance
  • Perforations
  • Introduction to completion design project
  • Reservoir Completion - Well stimulation
  • Introduction to Hydraulic Fracturing

Day 2

  • and Control completion
  • Sand control exercises
  • Enhancing Production through Artificial Lift Methods
  • Gas Lift
  • ESP
  • Jet Pumps
  • Sucker Rod Pump
  • Tubing Performance
  • Basics of PVT (Pressure, Volume, Temperature)
  • Multi-Phase Flow
  • Tubing Sizing
  • Interface with Reservoir Completion
  • Lazy Wells
  • Production Chemistry: Handling Challenging Reservoir Environments
  • Introduction to Reservoir Fluids
  • Identification of Common Production Problems
  • Reduction Methods to Common Production Problems
  • Scales
  • Wax
  • Asphaltenes
  • Hydrates
  • Reservoir Souring & H2S
  • Course Exercise: Problem Identification
  • Group work: Completion design project

Day 3

  • Tubing Stress Analysis
  • Purpose of Stress Analysis
  • Stress Loads
  • Stress and Strain
  • Axial Loads
  • Burst/Collapse
  • Tri-Axial Analysis
  • Safety Factors and Design Factors
  • Load Cases
  • Completion Equipment and Connections
  • Class Exercise: Tubing Stress Analysis
  • Materials Selection
  • Metals
  • Metallurgy & Corrosion
  • Elastomers and Plastics
  • Protective Coatings
  • Completion Components (Features & Usage)
  • Completion Philosophy
  • Completion Components
  • Christmas Tree, Tubing Hangers, Tubing, Down Hole Safety Valve, Packers, Tail Pipes, Expansion Devices, Nipples, Mandrels, Gauges, Etc.
  • Interface with Reservoir Completion
  • Group Work: Well completion design

Day 4

  • Completion Operation Base Preparation
  • Equipment Purchasing and Factory Acceptance
  • Service Contract
  • Equipment Preparation
  • Technical Program
  • Rig Preparation and Completion Installation Process
  • Operation Planning
  • Equipment Shipping
  • Equipment Reception
  • Pre-Job Meeting
  • Casing Cleaning Operation
  • Running in hole the completion equipment
  • Well Clean-Up
  • Reporting
  • After-Action Review
  • Fiber Optics: Distributed Temperature System (DTS), Pressure/ temperature (P/T), etc
  • Interventionless packers (Hydrostatic packers, swelling packers, etc)
  • In-situ self generating weak acid
  • Expandable tubulars
  • Expandable Sand Screens (ESS)
  • Sand Control in High angle and long interval: Alternate path technology (SHUTS, CAPS, etc)
  • Formation Isolation Valves (FIV)
  • Intelligent & Smart Well Completion: Interval Control Valves (ICV)
  • Underbalanced Drilling & Completion
  • Cased Hole Circulation Drilling & completion
  • Multistage Fracturing
  • Emerging Techniques
  • Group Work: Well completion design
  • Group presentation / General Review of the Well completion Design Project

Day 5

  • Well Control:
  • Well control Equipment
  • Blowout Preventer System Requirements
  • Choke Manifold
  • Circulating System
  • Kicks and its causes
  • Well Killing Operation
  • Forward circulation
  • Reverse circulation
  • Bullheading
  • Lubricate and Bleed
  • Class exercises on well control
  • Workover Operations:
  • Workover definition and description
  • Workover Types:
  • Safety Workover (SWO)
  • Long term suspension (LTS)
  • Plug and Abandonment (P&A)
  • Production enhancement (PE)
  • Workover Feasibility Studies

Course Methodology

A variety of methodologies will be used during the course that includes:

  • (30%) Based on Case Studies
  • (30%) Techniques
  • (30%) Role Play
  • (10%) Concepts
  • Pre-test and Post-test
  • Variety of Learning Methods
  • Lectures
  • Case Studies and Self Questionaires
  • Group Work
  • Discussion
  • Presentation

Who should attend

This course is intended for all Completion Engineer/Supervisors/Superintendent, Completions Team Led/Manager, Well Services/Intervention Engineer/Supervisors, Workover Engineer/Supervisors, Petroleum Engineer, Reservoir Engineer, Drilling Engineer/Superintendent/Site Manager, Cross-Discipline Training, Oil and Gas Project Evaluator and Oil and Gas industry Drilling/Completion/Intervention Service providers.

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