In oil & gas operations, optimisation opportunities of the field production efficiency and performance can be developed and guaranteed by combining monitoring and control elements in so-called "value loops". Such an approach is possible when reliable and consistent data and information from the complete production system are provided to the right users at the right time.

This paper presents existing field applications of advanced data validation and reconciliation (DVR) techniques which use all available information and measurements in order to provide reliable and consistent data from reservoir to oil and gas delivery.

Implementation and application of advanced DVR to offshore production installations located in Middle East and West Africa are described in detail with specific focus on well production determination and gas balancing and measurements.

Specific highlights are given to advanced DVR models development, field implementations and on results obtained in continuous well flow rate calculations, in equipment monitoring and topside measurements.

By combining sensors, flow measurements and modelling, advanced DVR has permitted to question and validate measurements but also multiphase metering information, equipment operation and flow models parameters.

Operational field experience gained by TOTAL demonstrates that online use of advanced DVR techniques allows to:

  • Improve continuous monitoring of well production

  • Reduce inaccuracy of gas flow measurements and balances

  • Detect instrumentation failure

  • Monitor field equipment behaviour

This gives the user the possibility to improve well production figures and environmental reporting and also the opportunity to optimize equipment operation and instrumentation maintenance.

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