FLNG Design and Technology

FLNG Design and Technology


The challenge of an LNG FPSO, is adapting the known onshore technologies to an offshore environment, with motion impacts affecting the process and offloading, as well as space limitations. This 5-day training seminar will guide the participant through all the phases of the project from concept design, construction and interfaces to commissioning, start-up and handover.

The training seminar gives a valuable, detailed insight into Floating Liquid Natural Gas development encompassing technical complexities, key design issues, critical drivers and risks related to LNG FPSOs and FRSUs. The training seminar will arm the participant with a wealth of knowledge to help them advance their project.

This training seminar will feature:

  • The design drivers for the overall vessel, topside, hull and mooring systems
  • Liquefaction technologies, regasification, and offshore LNG transfer systems
  • Safety, risk assessment and integration aspects of LNG production on a floating facility
  • Dynamic process simulation examples
  • Selection requirements for equipment and material
  • Interfaces and commissioning


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

  • Identify the key design requirements for an FLNG
  • Recognize the effects of the ocean environment on FLNG design
  • Understand the liquefaction and regasification technologies
  • Interpret applicable rules and regulations, industry standards and regulations and environmental considerations
  • Appreciate safety in design and operation

Training Methodology

This training seminar will utilise a variety of proven adult learning techniques to ensure maximum understanding, comprehension and retention of the information presented. The daily workshops will be highly interactive and participative. This involves regular discussion between both delegates and training seminar director. The training seminar will provide the participant with an in-depth knowledge through detailed information, real-life case studies, photos and video animation.

Organisational Impact

FLNG is new – to date there is not a fully operating vessel yet. There are no “go-by’s” or “lesson learned”. Bringing onshore LNG technologies in an offshore environment is a challenge. It requires engineers and designers from three different industries to team up and understand each other’s approach and requirements. To keep the project within budget and schedule it is important to have educated, knowledgeable and well-trained personnel that:

  • Understand the entire project from the well to export of the end product
  • Is aware of the main selection criteria in regard to equipment operating conditions and safety considerations
  • Appreciate the interdisciplinary nature and teamwork required for successful projects
  • Understands the rules, regulations and industry standards
  • Adopts the industry best practices
  • Have a risk-based approach
  • In sending delegates to this training seminar, the organisation will gain the following benefits:
  • Develop a technically strong team
  • Increase efficiency
  • Realise higher performance at lower costs within compliance
  • Control project budget and prevent overruns

Personal Impact

Understanding of the entire project will provide the participants with the tools necessary to find answers and solutions and to make appropriate decisions to progress in present and future projects.

This training seminar will provide multidisciplinary understanding of:

  • Key design considerations of the overall facility
  • The impact of rules and regulations on the design of the facility
  • The impact of your role in the project
  • The importance of interdisciplinary nature and teamwork required to achieve successful projects
  • How and why things could go wrong

Who Should Attend?

  • This training seminar is suitable to a wide range of professionals but will greatly benefit:
  • Designers, managers and operators
  • Technical staff, project engineers, engineering discipline leads, engineering specialists, and operating staff

Seminar Outline


  • Understanding the Basic Concept of an FLNG
  • Introduction to floating LNG concepts
  • Advantages and disadvantages
  • FLNG vessel design
  • Class, rules, design codes, standards and regulations
  • Design considerations, challenges and limitations
  • Shipbuilding and offshore approach


  • Comprehension of the LNG Process Plant
  • The basic concept from well to LNG
  • LNG Specifications
  • Various gas treatment concepts and HHC removal
  • Various liquefaction technologies
  • Production system challenges and selection of the major equipment
  • Power, heating and cooling systems
  • Regasification


  • The Impact of the Ocean Environment on FLNG Topside Design
  • Key metocean design criteria
  • Hull configuration and key safety and technology issues
  • FLNG topside modular design and layout
  • Interfaces and interface management
  • Turret and swivel systems
  • SURF and subsea interfaces


  • LNG Containment and Transfer System
  • LNG storage tank design
  • Storage tank insulation
  • Sloshing damage
  • Boil-off effects (roll over, density stratified liquid layers, natural convection within an LNG tank)
  • Storing other products (LPG, condensate, etc.)
  • Tank loading preparation
  • LNG Carriers
  • LNG transfer systems
  • LNG carrier loading operations
  • Offloading risks


  • Other Design Requirements
  • Control and safety systems
  • Electrical design
  • Piping and cryogenic piping design
  • Dynamic process simulation
  • Safety in design and operation
  • FLNG commissioning

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