Papers

Over the past seven years, the Gas Technology Institute (GTI), the American Petroleum Institute (API) and the United States Minerals Management Service (MMS), have co-sponsored an extensive natural gas sampling methods research program at the GTI Metering Research Facility (MRF), located at Southwest Research Institute (SwRI). The results of this research provided a basis for …

UPDATE ON GAS SAMPLING RESEARCH Read More »

Because of the adverse effects of pulsations on orifice and other types of flow meters there is for many installations, a need to eliminate or decrease the amplitude of pulsations in the piping. This task has been the primary domain of acoustical piping designers who have had both theoretical and practical field experience in such …

PULSATION REDUCTION BY ACOUSTIC FILTERS FOR METERING APPLICATIONS Read More »

The Natural Gas Industry is utilizing electronic devices in many different and diverse areas. One of the areas that has seen a rapidly growing usage of Electronics is Gas Measurement. Thus many Gas Measurement Technicians have been forced to take on the responsibility of installing and operating Electronic Flow Measurement (EFM) devices with little or …

BASIC ELECTRONICS FOR FIELD MEASUREMENT Read More »

The use of orifices for commercial flow measurement has a long history dating back more than 50 years. Orifices are extensively used in the United States natural gas, petroleum and petro-chemical industries and are important as one of the most practical ways to meter large volumes of gas flow. These meters are very reliable and …

PULSATION EFFECTS ON ORIFICE METERING CONSIDERING PRIMARY AND SECONDARY ELEMENTS Read More »

The American Gas Association has published (June, 1998) a recommended practice; Report No. 9; Measurement of Gas by Multipath Ultrasonic Meters. This paper reviews some of the key contents of A.G.A.-9 including recommended meter performance requirements, design features, testing procedures, and installation criteria. An update for the committee work in progress for year 2001 and …

AN OVERVIEW AND UPDATE OF AGA 9 Read More »

Technology advances in the world of semiconductors and microprocessors are increasing at a breathtaking pace. The density of transistor population on integrated circuits has increased at a rate unimaginable just a few years ago. The advantages are many: faster data acquisition, real time control, and fully automated factories, to name a few

Since this report references both itself and the 21.1 standard, the following nomenclature has been adopted to make it clear which document is being referenced. report – references this document, the one you are now reading. standard references the 21.1 standard, unless otherwise noted. section and subsection both refer to portions of the API 21.1 …

REPORT ON API 21.1 EGM STANDARD Read More »

Periodically, natural gas measurement standards are created or revised. In the period 1993 through 1999 Part 2 of ANSI 2530/API MPMS 14.3/AGA Report No 3 underwent revision. It is the intent of this paper to discuss the highlights of this revision

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 …

AGA CALCULATIONS — OLD VS NEW Read More »

The Gas Technology Institute (formerly the Gas Research Institute) sponsors a comprehensive flow measurement research, development, and commercialization (RD&C) program aimed at improving natural gas metering performance in the field. This paper summarizes some of the recent accomplishments of the research program at the Gas Technology Institute (GTI) Metering Research Facility (MRF), a high-accuracy natural …

GTI METERING RESEARCH FACILITY UPDATE Read More »