ISO TR 9464:2008 Targets Measuring Pipeline Flowrates in Oil, Gas Sector

June 2, 2008 // Published as a news service by IHS

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The International Organization for Standardization (ISO) released a technical report (TR) aimed at helping the oil and gas sector measure flowrate in pipelines.

ISO TR 9464:2008 - Guidelines for the use of ISO 5167:2003, presents guidance on applying the rules and requirements of ISO 5167 based on theory and experimental work undertaken in the field of flow measurement.

According to ISO, the report will help petroleum and gas shippers and producing, exporting and importing nations to get the best from ISO 5167:2003 - Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full.

ISO 5167:2003 is an international standard (in four parts) for flow measurement based on the differential pressure generated by a constriction introduced into a circular conduit.

It covers the geometry and method of use (installation and operating conditions) of orifice plates, nozzles and Venturi tubes when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in the conduit.

It also gives information for calculating the flowrate and its associated uncertainty.

ISO TR 9464 answers questions that might arise on the use of ISO 5167, for example, on calculating upstream from downstream temperature. With the application of the rules it provides, it is practicable to achieve flow measurement within an uncertainty of approximately 1% of the calculated flowrate, ISO said.

The report gives supplementary guidance on the use of all parts of ISO 5167 and information on the use of secondary instrumentation, including measurement of pressure, differential pressure, temperature, density and electrical supply.

Source: International Organization for Standardization (ISO).

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ISO TR 9464:2008 Targets Measuring Pipeline Flowrates in Oil, Gas Sector