Papers: 2010

Improving Flow Measurements With Improved Calibration And Data Handling Procedures

Author: Duane HarrisDownload File

The back office gas measurement analyst requires a completely different set of skills to interpret and understand the information documented by the field regarding testing and calibration procedures. The task for the measurement analyst is to absorb the wealth of information presented, and utilize their extensive knowledge base in determining when a current month adjustment […]

“unaccounted Gas Study In Distribution Networks”

Author: Jay ShifletDownload File

In the Gas Distribution business Unaccounted Gas is referred to by various names or terms such as: Lost and Unaccounted-For, LUG, L&U, and UAF. In simplest terms, Unaccounted Gas is the result of the formula “gas receipts minus gas deliveries”. For the Measurement Group the process amounts to a “gas inventory reconciliation” based on the […]

Aga Calculations – 1985 Standard Vs 1992 Standard

Author: Brent BerryDownload File

This paper is intended to help bridge the gap between the Old AGA-3 equation (hereafter referred to as AGA-3-1985) and the New AGA-3 equation (hereafter referred to as AGA-3-1992). As such the paper begins with a background section aimed at assisting those who are mostly familiar with the factored form of the orifice metering equation.

Determining Proper Odorization Levels

Author: Paul D. WehnertDownload File

Over 300 people died in an explosion on March 18, 1937 in a New London, Texas public school building. The natural gas that was being delivered to the school building was not odorized. At that time the natural gas was odorless, Odorization

Application And Verification Of Coriolis Meters For Gas Measurement

Author: KARL STAPPERTDownload File

Since the early 1980s, Coriolis meters have gained worldwide acceptance in gas, liquid, and slurry applications with an installed base of more than 600,000 units. Through significant design enhancements in the early 1990s Coriolis meters have rapidly gained worldwide acceptance in gas phase applications with over 40,000 meters installed worldwide and most notably the 2003 […]

Operations Of Online Gas Chromatographs

Author: Shane HaleDownload File

The gas chromatograph (GC) is an integral component of the natural gas custody metering station and has a large impact on the accuracy of the fiscal flow calculation. For this reason it is imperative that you install, operate and maintain the GC with the goal of maximum reliability and accuracy

Effects Of Wet Gas Flow On Gas Orifice Plate Meters

Author: Josh Kinney & Richard StevenDownload File

Orifice plate meters are one of the most widely used technologies in industry for gas flow metering. This is due to their relative simplicity, the extensive publicly available data sets that led to several orifice plate meter standards [1, 2, 3, 4] and the fact that they are a relatively inexpensive method of gas metering. […]

Verifying Gas Chromatographs At Custody Transfer Locations

Author: Shane HaleDownload File

Verifying the correct operation and accuracy of the Gas Chromatograph (GC) is an integral part of a custody transfer metering system, and involves ensuring the accuracy of the analyzer at the time of testing, as well as confirming that the GC performed properly during the periods between validations and assessing the likelihood of continued proper […]

Electronic Gas Measurement Auditing

Author: Perry Dee HummelDownload File

Electronic Gas Measurement or EFM auditing is a very important process of the natural gas industry. Only a few short years ago, the dry recording device for custody gas measurement. All that has changed with the advent of the flow computer; volumes are recorded and generated at the field level, and imported to the measurement […]

An Overview Of Industry Standards Related To Natural Gas Measurement

Author: Barry BalzerDownload File

Standards are a vital part of our every day lives. Many of the benefits that we have gained as a result of standards often go unnoticed. We are usually unaware of the role of standards in raising quality levels, reliability, safety, interchangeability and efficiency. We often take for granted that a pipe fitting we purchased […]