ASGMT has been providing Oil & Gas end-user personnel, manufacturing employees and university students the opportunity to obtain technical training from over 115 lecture classes and 48 hands-on equipment training classes.
Overpressure protective devices are of vital concern to the natural gas industry. Safety codes and current laws require their installation each time a pressure reducing station is installed that supplies gas from any system to another system with a lower maximum allowable operating pressure (MAOP). The purpose of this article is to provide a basic …
Relief Valves and Overpressure Protection Methods Read More »
In the gas industry, there are two basic types of regulators used for both pressure reducing and back pressure (relief) control. The two types are: Self Operated Regulators (Sometimes referred to as spring loaded regulators) Pilot Operated Regulators (Loading and Unloading style pilot regulators) This paper will discuss the basic principle of Self …
The history of orifice metering began in the early 1900’s. The first test data was done by the U.S. Geological Survey and in 1913 the first “Handbook of Natural Gas” was published. So, as you can tell, orifice metering has been around for over 100 years and in that time, much has been learned and …
In order to understand the chemistry of natural gas, it is important to be familiar with some basic concepts of general chemistry. Here are some definitions you should know: Matter – anything that has mass and occupies space. Energy – the capacity to do work or transfer heat. Elements – substances that cannot be decomposed …
The use of Liquid Ultrasonic Meters for liquid petroleum applications such as custody transfer or allocation measurement is gaining world wide acceptance by the Oil Industry. Ultrasonic technology is well established but the use of this technology for custody transfer and allocation measurement is relatively new. Often users try to employ the same measurement practices …
FUNDAMENTALS OF MULTIPATH ULTRASONIC FLOW METERS FOR LIQUID MEASUREMENT Read More »
The use of ultrasound in flow measurement began in the last century when, in 1928, Oskar Rütten patented this method and apparatus for measuring the volume of flowing liquids, gas, and steam. The first ultrasonic flowmeters were introduced in the 1950’s, and in the 1960’s different companies developed the first ultrasonic flowmeters using the differential …
FUNDAMENTALS OF ULTRASONIC FLOWMETERS FOR NATURAL GAS Read More »
This paper is to discuss the various methods of gathering electronic gas measurement (EGM) data. There are various options when it comes to collecting EGM data in the Natural Gas Industry. Devices such as RTU’s, PLC’s and EFM’s are typically used to collect and store the data locally. The focus of this paper is on the various technologies used to remotely gather the information stored on these devices. Depending on each company’s needs, these collection options could range from someone physically connecting to a device to collection via a satellite system. Spread spectrum networks became increasingly popular over the years, which as a result introduced realized interference due to the number of networks installed. Many companies are utilizing IP technologies versus serial in order to combine other networks and protocols. Licensed networks have been utilized for quite some time and are still used to meet reliability requirements. Cellular networks are often used when there is no infrastructure available in that area. Cellular networks will of course have a reoccurring cost associated with them. Satellite technology is required in some remote and/or saturated areas. Satellite communications can be costlier but is the only option available in some areas.
The majority of all gas measurement used in the world today is performed by two basic types of meters, positive displacement and inferential. Positive displacement meters, consisting mainly of diaphragm and rotary style devices, generally account for lower volume measurement. Orifice, ultrasonic and turbine meters are the three main inferential class meters used for large …
In the gas industry a standard unit of measure is required. In the English system it is the standard cubic foot. In the metric, it is the standard cubic meter. This standard unit is the basis of all exchange in the gas industry. When the unit of purchase is the energy content (BTU) we achieve …
Gas chromatography is one of the most widely used techniques for analyzing hydrocarbon mixtures. Some of the advantages of chromatography are the range of measurement (from ppm levels up to 100%), the detection of a wide range of components, and the repeatability of the measurements. Chromatography is used in the laboratory, in permanently installed online …
ASGMT is dedicated to training, education, and creating a better future through the people who learn from us. As the largest gas measurement school in the United States, we are devoted to natural gas measurement, pressure regulation, flow control, and other measurement related arenas.
Copyright © 2023 American School of Gas Measurement Technology - ASGMT. All rights reserved.
