Transmission Measurement Round Table

Part of the SGA Operating Conference 2007

July 30-August 1, 2007

Hyatt Riverwalk Hotel - San Antonio

 

Chairman

• Steve MacDowell, System Measurement Leader, Gulf South Pipeline Co. (stephen.macdowell@gulfsouthpl.com)

This is your meeting!  Weigh in with the Round Table Chairmen to offer suggested topics for discussion.

 

More details about this Conference and to register:

SGA Operating Conference with Exhibits Web Page

 

Discussion Outline

 

Tuesday July 31, 2007 (8  to 11:30 am)

 

Standards Review and Updates

• AGA 7 (Recently revised)
• AGA 10
• Discussion leader: Ed Bowles, SWRI

Meter Topics

 

Ultrasonic

• Recalibration procedures and frequency?
• Diagnostic review process
• Error correction and estimation process
• Meter cleaning process and frequency

In house or outside service?

 

Clamp on Ultrasonic Meters

• Who’s using them?
• For what purpose are they being used?
• What brands?
• How’s it working out?

 

Orifice

• Periodic inspection
• Frequency?
• Cleaning?

• Re-mic?
  • Stamping new mic results?

Turbine

• Proof curves?
• Recertification and frequency?
  • Where are the recertification’s being done?
    • Flow labs
    • Manufacturer

  • Critical flow proving?

    Utilizing multiple cartridges in meter body?

    • Flow rate
    • Recertification

Rotary

• Contract testing?

  • Op-Qual'd?
• Transfer or critical flow provers?
  • High pressure affect on critical prover nozzles

Meter Selection Criteria

• What is the Design criteria (mscfd) for:
  • Rotary
  • Turbine
  • Orifice
  • Ultrasonic
  • Types
    • Storage field
    • Well sites
    • Master meters
    • Wet gas

 

Meter Test Frequencies

• Based on volume?
• Based on equipment type?

General Discussion

 

Proper selection of a flow meter for a given application (i.e., avoiding misapplication of various available measurement technologies).

 

New Chromatographs (i.e. ABB 8206, Daniel Model 700, etc.)

• Who’s using them?
• What brands?
• How’s it working out?

Retrofitting existing sampling/chromatograph facilities to comply with 14.1 requirements.

• Who’s doing it or do they plan on doing it?
• What influences are driving their decision to retrofit or not retrofit?
• What criteria are being used to prioritize retrofits?
• Has anyone seen any value from the retrofits?  

 

Lunch (11:30 to 1:30)

 

Tuesday July 31, 2007 (1:30 to 4:45 pm)

Vendors are invited to this afternoon session.

 

Discussion Outline

 

• Improving hydrocarbon dew point determination.

• Future variability in gas composition and its effects on interchangeability across the grid, including a methodology for assessing this issue.  (i.e., LNG impact)

• Technician training programs
  • Is there a benefit to industry standards?

 

• Other meter types currently being used for custody or shadow?

• How are they working out or comparing?

 

• Project Management and Installation

• I&E (internal or external forces)

• Diagnostics - Real World Applications
  • Vendors are invited to participate in this discussion

 

Wednesday August 1, 2007 (8 to 11:30 am)

 

Control valve selection criteria

• Flexible Element (i.e. Flex Flow, Mooney)
• Ball valve
• Globe valve
• Stem type

 

Compliance Issues

• Type of inspections (lock up vs. teardown) and frequency
• Single or dual over pressure protection valves/devices.
  • Is it the same for production, delivery, and receipt sites?

Research Update

 

 

Additional Topics:

Progress toward a clamp-on ultrasonic meter with custody transfer accuracy.

Progress toward a universal training program for field measurement technicians and gas measurement engineers.

An update on current measurement research initiatives.  Also, are there other needs going unaddressed?

An update on current industry standards initiatives (domestic and international).  Also, are any new initiatives needed?

Impact of pending congressional legislation on gas measurement in the future.

 

 

Links to Additional Information

 

Transmission Measurement Interest Group

 

 

Questions?

Mike Grubb

Southern Gas Association

mgrubb@southerngas.org

972-620-4022

 

 

This page updated: July 24, 2007