LNG Ship Tank Calibration. World Overview (eBook)

Published Date

June 2009

LNG Ship Tank Calibration. World Overview (eBook)

(Excludes any applicable taxes)

Société Générale de Surveillance (SGS) is an independent company devoted to test, verified and inspect any technical services within the oil, gas or chemical industries. This report offers a description of the tank calibration services offered by SGS to clients in the LNG industry and proves its efficiency and accuracy (8pp)

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Société Générale de Surveillance (SGS) is the world’s leading inspection, verification, testing and certification company. SGS is recognized as the global benchmark for quality and integrity. With more than 48000 employees, SGS operates a network of over 1000 offices and laboratories in over 140 countries.

SGS Oil, Gas & Chemicals is the market leader in independent inspections, testing, verification and specialised technical services to the Oil, Gas and Chemical industries. SGS OGC is committed to adding value for our customers by helping to maintain our customer’s reputation for high quality products and reducing the commercial and environmental risk associated with the production, trading, distribution and storage of oil, gas and chemicals.

SGS has been involved for many years in the measurement, quantity and quality control of Liquified Natural Gas (LNG) movements.


SGS OGC has developed a number of specific independent services to assist our clients in the LNG industry: production, ocean transport and custody transfer, calibration, liquefaction and regasification and training services.

In order to determine the correct final energy content, a good calibration of both cargo tanks and custody transfer equipment is required.

The verification of the custody transfer equipment is done using SAT and FAT.


This study has found that for tank calibration the highest accuracy can be obtained by using the following methodology:

Using the optimised Laser method to determine the tank capacity tables.


Include complete and correct correction tables, taking into account the actual on board custody transfer equipment.

When these techniques are applied correctly, an accuracy of +/- 0.05% can be obtained in the tank tables, this is a lot higher than the +/- 0.2% obtained by using other methods.

The SGS Laser method can be used on both Moss and membrane types and thanks to the more accurate tables, it is possible to reduce the uncertainty on the final energy of the cargo.

For over 45 years, the Gastech Exhibition & Conference has been at the forefront of the international gas and LNG market. This world-renowned event is regarded as the most significant meeting place for gas and LNG professionals, where the global industry gathers to do business.

Gastech hosts major IOCs, NOC’s, global utility companies, EPC contractors, shipbuilders, pipeline companies, manufacturers, distributors, technology and service providers, all who play an active role in the global energy value chain.

Title: LNG Ship Tank Calibration. World Overview (eBook)
Product Code: WS1044EA
Published Date: June 2009

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