LNG Cargo Calculation Mastery: Standards, Documentation, Surveying, and Practical Applications
Course Code: 1003
LNG Cargo Calculation Mastery: Standards, Documentation, Surveying, and Practical Applications
Course Code: 1003
Navigate the complexities of LNG cargo calculations, from understanding relevant standards and documentation to mastering practical calculation techniques and the role of cargo surveying inspections. This course provides a comprehensive understanding of cargo calculations, including split calculations, SPA calculations, reporting procedures for various stakeholders, and the crucial role of cargo surveying in ensuring accuracy and compliance.
Course Highlights:
LNG Cargo Calculation Principles: Gain a deep understanding of the fundamental principles and methodologies behind LNG cargo calculations.
Relevant Standards and Documentation: Explore the key industry standards and documentation that impact cargo calculations.
Different types of LNG vessel
Loading activities starting from Notice of readiness to sail away
Cargo Surveying Inspections: Learn about the role of cargo surveyors in verifying cargo quantity and quality, ensuring adherence to contractual terms and industry standards.
Practical Calculation Techniques: Master essential calculation techniques, including split calculations and SPA calculations.
Reporting and Stakeholder Communication: Learn to prepare accurate and comprehensive cargo reports for various stakeholders, including buyers, sellers, and regulatory bodies.
Sample Calculations and Documentation: Gain practical experience through the analysis of sample cargo calculations and related documentation.
This course is indispensable for LNG professionals involved in cargo operations, trading, or contract management. It provides the skills and knowledge needed to ensure accurate cargo calculations, facilitate transparent transactions, maintain compliance with industry standards, and understand the vital role of cargo surveying inspections.
Key Takeaways:
Master the principles of LNG cargo calculation
Understand relevant standards and documentation
Appreciate the role of cargo surveying inspections
Perform accurate split and SPA calculations
Prepare comprehensive cargo reports for various stakeholders
Ensure compliance and facilitate transparent transactions
We offer this course at two distinct levels to cater to different skillsets: a General level for beginners and an Advanced level for those seeking a deeper dive.
2-Day Training Agenda
Day 1: Cargo Fundamentals, Standards & Surveying
Session 1: LNG Cargo Calculation Fundamentals
· Understand gross vs net, standard vs observed volumes
· Introduce measurement logic using temperature, density, and GCV
Session 2: Documentation & Industry Standards
· Apply GIIGNL, ISO, SIGTTO guidelines
· Navigate key cargo documents: NOR, manifest, survey report, BL
Session 3: LNG Vessel Types & Loading Workflow
· Compare Moss vs membrane ship types and tank calibration
· Follow the loading sequence: from readiness to sail away
Session 4: Cargo Surveying Principles
· Understand independent and joint surveyor roles and methodologies
· Learn inspection sequence: pre-load checks, tank gauging, gas analysis
Workshop A – Cargo Operation Mapping & Document Traceability
· Participants walk through a simulated loading event, link operations to documents, and validate measurement points and timing.
Day 2: Calculation Practice, SPA Splits & Reporting
Session 5: Split Cargo & SPA-Based Calculations
· Calculate energy content and splits for multi-lifter cargoes
· Handle SPA clause interpretation: tolerances, rounding, and penalties
Session 6: Report Preparation for Stakeholders
· Create a compliant reporting pack for terminal, buyer, regulator
· Include B/L, final quantity statement, variation summary, and lifter breakdown
Session 7: Documentation Walkthrough & Error Checks
· Critically review sample survey reports, allocation spreadsheets, and cargo certificates
· Reconcile discrepancies and suggest adjustments for compliance
Workshop B – Full SPA-Based Calculation & Reporting Simulation
· Using raw data, participants calculate total volume, energy, perform a split allocation, and generate a complete reporting pack for internal and external submission.
About the course
This intensive 2-day course provides LNG professionals with a comprehensive understanding of cargo fundamentals, documentation, vessel operations, surveying practices, and split calculations under SPAs. Day 1 establishes a solid foundation in measurement logic, industry standards (GIIGNL, ISO, SIGTTO), and cargo workflows through vessel type comparisons and surveying principles. A hands-on workshop reinforces the end-to-end process by tracing operations to documentation.
Day 2 builds technical proficiency in energy content calculations, SPA-based split allocation, stakeholder reporting, and document verification. Through practical exercises using real-world data, participants gain the confidence to prepare compliant, accurate reports and resolve discrepancies effectively.
This course is ideal for anyone involved in LNG terminal operations, cargo documentation, commercial lifting, or survey oversight.
Customisation Available:
The course content and duration can be tailored to your company’s specific terminal procedures, contracts, and reporting requirements—ensuring relevance and immediate applicability to your project context.