Papers

SCADA systems provide are combinations of field devices, communications infrastructure and software integrated into a system that provides for safe, reliable, and effective operation of remote facilities. Producers, gatherers, midstream operators and pipelines use SCADA system for operations. In addition, SCADA gathers data used by advanced applications such as measurement accounting. SCADA is key for …

SCADA AND TELEMETRY IN GAS TRANSMISSION SYSTEMS Read More »

The purpose of this paper will be to compare a plug and seat regulator to a control valve for high-pressure natural gas installations such as: power plants, city gate stations, large industrial customers, compressor stations, and storage fields. The features, benefits, capabilities, and differences of both devices will be outlined, to enable the reader to …

COMPARING PLUG & SEAT REGULATORS & CONTROL VALVES Read More »

nspections and tests on regulators and relief valves is a Department of Transportation Compliance rule. The sections within the DOT manual stating the rule include 192.351 through 192.359, 192.751, 192.479, 192.481, 192.739, and 192.741. Keep in mind; these rules are the minimum required tests. Your Company or Regulatory Agency may be more stringent and require …

PERIODIC INSPECTION OF REGFULATORS AND RELIEF VALVES Read More »

The condition of gas as it presents itself in the pipeline is often not ideal for accurate measurement, by an orifice flow meter. It is the requirement of the American Gas Association (AGA) that the natural gas be in a single phase and with a swirl-free fully developed profile as it passes across the orifice …

PRODUCTION EQUIPMENT EFFECTS ON ORIFICE MEASUREMENT Read More »

Between 1999 and 2005, the Gas Technology Institute (GTI), the American Petroleum Institute (API), the United States Minerals Management Service (MMS), and the Pipeline Research Council International (PRCI) co- sponsored an extensive natural gas sampling research program at the Metering Research Facility (MRF), located at Southwest Research Institute (SwRI). The results of this research provided …

LESSONS LEARNED FROM THE API MPMS, CHAPTER 14.1 GAS SAMPLING RESEARCH PROJECT Read More »

Extraction of natural gas from shale formations has increased the focus on determining the quality of the gas extracted and processed. One of the key attributes of natural gas during its various stages of processing is its “Hydrocarbon Dewpoint”. This figure refers to the temperature at which the gas stream undergoes a phase transition to …

Accurate Measurement of Hydrocarbon Dewpoint in Natural Gas Streams Read More »

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.