Papers: 2010

Production Equipment Effects On Gas Measurement

Author: David PulleyDownload File

American Gas Association states that measurement of natural gas by an orifice meter requires a single-phase hydrocarbon through the metering area, which allows an accurate measurement of differential pressure across the orifice plate, flowing temperature, and component analysis at a metering station. Some gas contracts state that the producer shall condition the gas for metering […]

Onsite Proving Of Gas Flow Meters

Author: Daniel J. RudroffDownload File

With the increased use of Natural Gas as a fuel, higher natural gas prices, and the new federal regulations, buyers and sellers of natural gas are seriously looking at ways to improve their natural gas measurement and reduce the amount of natural gas that is unaccounted for. An error in measurement of only one tenth […]

Fundamentals Of Electronic Flow Meter Design, Application & Implementation

Author: Jim GriffethDownload File

Electronic flow measurement as applied to the natural gas industry has advanced considerably over the last 30 years. Applications to address Upstream, Midstream and Downstream gas measurement technologies have become more complex. Over time it has become necessary to understand the fundaments that make up this ever changing environment.

Get It Right The First Time – Field Data Capture Without Paper Forms

Author: Bruce WallaceDownload File

Field data capture describes the retrieval, storage, and reporting of data generated from measurement asset maintenance and configuration activities. Equipment inspections, configuration changes, calibration verification, troubleshooting, and gas sampling provide important subsets of measurement data. To "Get it right the first time " means capturing and distributing this data with minimal effort, error, time, and […]

Flow Conditioning And Effects On Accuracy For Fluid Flow Measurement

Author: Blaine D. Sawchuk Dale P. Sawchuk Danny A. SawchukDownload File

Over the last several years research has shown that by improving on the flow conditioners used in natural gas metering applications, measurement is improved and installation cost can be reduced. The standards developed for orifice meters (AGA 3/API 14.3 and ISO 5167) addresses the question of flow conditioner design and testing to ensure the meter […]

Intelligent Electronic Flow Measurement Data Communication

Author: INTELLIGENT ELECTRONIC FLOW MEASUREMENT DATA COMMUNICATIONDownload File

The gas industry today has many systems and processes that are artifacts of non-telemetered chart recorders and the manual collection and analysis of electronic flow measurement (EFM) data. As operational and regulatory drivers increase the demand for rapid publishing of measurement data, the corporate EFM stack (layered systems) must be aware of each layer within […]

Understanding Aga Report No. 10, Speed Of Sound In Natural Gas And Other Related Hydrocarbon Gases

Author: Jerry Paul Smith Joel ClancyDownload File

The speed of sound in natural gas is the velocity a sound wave travels in the gas. There are a number of gas properties that affect the speed of sound and they include the composition of the gas, the pressure of the gas and the temperature of the gas. The American Gas Association Report No. […]

Basic Electronics For Field Measurement

Author: Myles McDonoughDownload File

The three basic laws we will discuss are Ohm’s law, Kirchhoff’s voltage law, and Kirchhoff’s current law. The main terms used are voltage (units are Volts), current (units are Amps or milliamps), and resistance (units are ohms). These terms by themselves are meaningless unless a relationship can be established. An analogy that we can use […]

Overview Of Aga 7 Revision

Author: Angela FloydDownload File

Just when you thought you knew everything there was to know about Turbine meter measurement, wham, out comes a revised AGA 7 standard. Now those basic principles are all still valid but maybe those operating practices we have built into our operating procedures need a little review. Rather than proceed as generations have done before […]

Scada And Telemetry In Gas Transmission Systems

Author: Edward H. SmythDownload File

SCADA systems provide for safe, reliable, semi-efficient operation of gas transmission systems. Advanced applications and interfaces to business systems provide the keys for highly profitable operation. This paper introduces the basic building blocks of the SCADA system, including field devices. The SCADA host and advanced applications are discussed in detail. The paper concludes with a […]