Service: Measurement - Gas Meters

Gas Meters (secondary devices)

• Witnessing, commissioning, health monitoring evaluation, and operational troubleshooting of gas flow meters used for custody transfer (fiscal) and check measurement applications.

• The gas flow meter is the heart of any measurement system. It’s critical that the meter and the meter run piping configuration be calibrated (characterized) in a traceable flow lab under conditions as similar to the installation conditions as possible. This provides baseline information

• Different types of meters are used for different applications depending on the range of flow rates required by the customer. Positive displacement (PD) meters, rotary meters, orifice meters and small turbine meters have traditionally been used for low volume applications. Larger volume applications have traditionally utilized larger diameter orifice meters and turbine meters in multiple run configurations.

• With the advent of ultrasonic meters many companies started using large diameter ultrasonic meters in fewer meter runs in lieu of multiple smaller diameter meter runs. This reduces piping, valve requirements and run switching control issues, thus reducing costs.

• Advancing electronics and signal processing technologies are allowing ultrasonic meter manufacturers to develop meters with smaller and smaller diameters. This is allowing ultrasonic meters to be used where traditionally small diameter orifice, PD and turbine meters had been used.

• Clamp-on transducer technology advances allow clamp-on meters, traditionally used in liquids measurement, to be used for natural gas applications. These meters are normally used for operational and check measurement applications. Portable clamp-on meters are a great diagnostic tool for audits, lost and unaccounted for studies and monitoring flow during live line welding operations.

• The advances in on-board processing power are allowing the meters to process and store large amounts of operational and health monitoring data. This data, coupled with advancing software interface programs, can provide significant audit trail and meter health information. Short and long term evaluation of this data can pin-point and possibly head off measurement problems.

• As these meters become more sophisticated, the more chances there are for things to go wrong. Help is often needed to determine exactly what went wrong and when.

 

Services Offered:

Measurement
• Lost and Accounted For
• Instrumentation
• Gas Meters
• Meter Stations
• Integration

Automation and Control
• Control Strategies
• Flow Computers
• Communication

Additional Services
• White Papers