Emerson installs Daniel gas metering system in Macedonia

Emerson installs Daniel gas metering system in Macedonia
AUSTIN, TEXAS (June 14, 2007) - Emerson Process Management has recently completed a major modernization program at a custody transfer gas metering installation at the Makpetrol Border Station in Macedonia. The scope of work undertaken by Emerson included design, fabrication, inspection, test, and delivery of a complete Daniel gas metering system.

Makpetrol were keen to introduce a technologically advanced ultrasonic measurement method to the gas metering station, which measures gas flow from a pipeline originating in Russia. The existing measurement system consists of three streams utilizing orifice measurement technology and Makpetrol wanted to confirm the ability of the Daniel SeniorSonic meter as an accurate, reliable, cost-effective alternative for custody transfer measurement.

Emerson assumed full system responsibility, starting with commissioning service and guaranteeing the operability, accuracy and quality of all components including conformance to local and national authority and code requirements. The project also included a comprehensive operation and maintenance training package for site personnel.

The new metering system was commissioned throughout 2005, with the commissioning timetable having been designed to minimize downtime. Since then, the difference between orifice and SeniorSonic base volume flows has been typically 0.5% or less. The advanced diagnostic checks and inter-comparisons available from the Daniel SeniorSonic metering system have given the operator a higher level of confidence in metering accuracy than was ever possible before. This confidence, along with the stable accurate performance of the meter, led to the Daniel SeniorSonic being approved for use for primary flow measurement by Makpetrol and Gazprom.

Commenting on the success of the new metering system, Milos Colovic, Manager of Metrology Department and Head of Border Station at Makpetrol said, "We are now certain that we measure gas flow accurately, as the different physical measuring principle of USM and orifice prevents a systematic error affecting the measurement result of the two gas meters. Pay/check configuration of the metering system allows us to verify that the meters are performing correctly. Based on the success of this installation which has been proven to be accurate, reliable and user friendly, Makpetrol is planning to extend the use of this new technology based on the Daniel SeniorSonic meter to a third metering line."

Emerson supplied the two new Daniel metering streams as pre-assembled flow metering tubes, each containing a 10 inch 600# SeniorSonic ultrasonic flow meter, Daniel Profiler flow conditioning plate, up and downstream pipe spools, and pressure and temperature transmitters. Each stream was designed to accurately measure the full site flowrate of 180,000 Standard M3/Hr and each meter, along with its own up and downstream pipe spools, was flow calibrated in high pressure natural gas at the Advantica Calibration Facility in the UK.

The streams are designed to comply with both AGA-9 and ISO-5167 requirements. Flow measurement and analysis calculations, as well as PID flow control, are handled by Daniel FloBossT S600 Flow computers. Gas quality monitoring is provided by Daniel Model 500 Gas Chromatographs with Model 2350A controllers. To maximize ease-of-use, the system was supplied with a Daniel DMS+ Supervisory System which generates the Border Station hourly, daily, weekly and monthly totals for the meter readings.

To take advantage of the advanced diagnostic capability of the Daniel SeniorSonic, the operator uses Daniel CUI 4.10 software. The PC based software allows the operator to monitor advanced diagnostic parameters such as gain, signal-to-noise ratio, performance, VOS, profile geometry checks and timing checks. These diagnostics can be used to monitor not only the health of the USM components (transducers and electronics), but also used to check for changes in pipeline condition which could impact the accuracy of the measurement system.

About Emerson Process Management
Emerson Process Management, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, power, water and wastewater treatment, pulp and paper, food and beverage, life science, and other industries. A division of Emerson, Daniel Measurement and Control is a global leader in providing fiscal flow and energy measurement solutions to the oil and gas industry. Daniel integrates products and services to supply best-in-class integrated custody transfer measurement systems for both liquid and gas measurement. Daniel custody transfer measurement systems play a key role in the Emerson mission of combining superior products and technology with industry-specific engineering, consulting, project management and maintenance services.

Emerson brands include PlantWeb, Daniel, Bristol, Brooks, Fisher, Micro Motion, Rosemount, Mobrey, DeltaV, Ovation, and AMS Suite.

About Emerson
Emerson, based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2006 were $20.1 billion.

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