Oil and Gas

Oil and Gas | Facilities and Surface Operations

Metering of Natural Gas and Associated Liquids

Course Code: N635
Instructors:  Ed Wichert
Course Outline:  Download
Format and Duration
1 days


Natural gas is metered about four times between the wellhead and the gas transmission system.   In the past, virtually all metering of natural gas in the field and in the plants was done with the orifice meter.  Nowadays there is a great variety of meters to choose from for gas and liquid flow measurement. The standards that are followed for the installation of meters, the recording of the flow parameters and the calculation of the flow rates are explained.  The latest issue of the AGA 3 report is covered.

Accurate metering is the foundation for equitable plant products and revenue allocation.

The operation and application of new types of meters are explained:
        • Coriolis meter
        • Vortex shedding meter
        • Ultrasonic meter
        • V-Cone meter


All sections in the itinerary were covered and delivered well.

Duration and Training Method

One classroom day providing .8 CEU (Continuing Education Credits) or 8 PDH (Professional Development Hours)

Course Overview

Participants will learn to

• Estimate basic properties of produced fluids for metering
• Select meter for specific measurement application
• Check orifice meter installation, operation, maintenance
• Calculate flow rate with orifice meter
• Calculate gas flow rate with turbine meter
• Identify potential sources of error
• Verify measurement testing for multiphase metering with orifice meter
• Apply AER requirements
• Estimate water vapour content of low pressure acid gas
• Select turbine meter for gas or liquid measurement

Course Agenda

1. Types of fluids produced
2. Properties
3. General comments about meters
4. Meter Standards
5. Orifice meter, installation, operation, maintenance
6. Potential sources of error
7. Multiphase metering with orifice meter
8. AER requirements
9. Turbine meter
10. Coriolis meter
11. Vortex shedding meter
12. Ultrasonic meter
13. V-Cone meter
14. Liquid metering
15. Calculation methods


This course is intended for technical persons responsible for the selection and installation of metering facilities, for calculation of volumes, and for accounting personnel that allocate production and financial results to the producing wells.




Ed Wichert

Edward Wichert has an extensive background in the oil and gas industry.  This includes experience at the technical level as well as in management in drilling, oil and gas production and processing, reservoir engineering and economic analysis.  He gained this experience through employment in the oil and gas industry in Alberta, with small, intermediate and large companies.  He holds a B. Sc. degree in Petroleum Engineering and a Master's degree in Chemical Engineering.  His research interests are mainly related to sour gas.  He has published several articles dealing with determining the properties of sour gas and the application of technology in sour gas production and processing, as well as the disposal of acid gas by compression and injection. 

He is an independent oil and gas industry consultant in Calgary, and was Adjunct Professor in the Department of Chemical and Petroleum Engineering at the University of Calgary from 1996 to 2005.  He has presented courses in natural gas technology worldwide, and is the recipient of the Award of Merit from the Canadian Gas Processors Association, in 1994, the Lifetime Achievement in Hydrocarbon Measurement award from the Canadian Institute of Hydrocarbon Measurement, in 2003, and the Project, Facilities and Construction Award from the Society of Petroleum Engineers.  He has recently written a comprehensive book on the technology of sour gas production, gathering, treating, and the different methods of acid gas disposal. 

Affiliations and Accreditation
Member of Retirees, Canadian Gas Processors Association, 2018
Member of APEGA since July, 1961
Lifetime Member of SPE

BSc Degree in Petroleum Engineering, 1958
MEng Degree in Chemical Engineering, 1970
Adjunct Professor in Chemical and Petroleum Engineering, University of Calgary, 1996 to 2005
Recipient of the following industry awards:
 - Award of Merit, Canadian Gas Processors Association, 1994
 - Lifetime Achievement in Hydrocarbon Measurement, Canadian Institute of Hydrocarbon
      Measurement, 2003
 - Project, Facilities and Construction Award, Society of Petroleum Engineers, 2008
Authored or Co-authored over 20 technical articles (CV at www.grayjay.ventures)
Wrote “The Sour Gas, Sulfur and Acid Gas Book”, 2018 (The Book at www.grayjay.ventures)

Courses Taught
N632 - Acid Gas Compression and Injection   
N635 - Metering of Natural Gas and Associated Liquids  
N632 - Sour Gas Treating     


CEU: 0.8 Continuing Education Units
PDH: 8 Professional Development Hours
Certificate: Certificate Issued Upon Completion
RPS is accredited by the International Association for Continuing Education and Training (IACET) and is authorized to issue the IACET CEU. We comply with the ANSI/IACET Standard, which is recognised internationally as a standard of excellence in instructional practices.
We issue a Certificate of Attendance which verifies the number of training hours attended. Our courses are generally accepted by most professional licensing boards/associations towards continuing education credits. Please check with your licensing board to determine if the courses and certificate of attendance meet their specific criteria.