One of the most important methods of transporting natural gas in Iran and other parts of the world is the utilization of a network of pipelines. Compression station and turbo compressor units play an important role in gas supply through pipelines. One of the primary concerns in these units is the reduction of fuel consumption. By cooling of exhaust gas from the source station, the pressure drop...

Formation of natural gas hydrate is a serious problem in the gas and oil industry because it can plug pipelines and destroy the equipment. This study aimes to evaluate the concentration effect of glycol ethers on their synergism with a commercial kinetic hydrate inhibitor (Luvicap 55W) in sweet natural gas-water systems at a constant temperature of 4 oC and pressure of 95 bar. Hydrate formation...

Gas hydrate formation in production and transmission pipelines and consequent plugging of these lines have been a major flow-assurance concern of the oil and gas industry for the last 75 years. Gas hydrate formation rate is one of the most important topics related to the kinetics of the process of gas hydrate crystallization. The main purpose of this study is investigating phenomenon of gas hyd...

In 1996, the Federal Energy Regulatory Commission (FERC) established criteria it uses when evaluating proposals for marketbased rates by natural gas pipelines. Since that time, a number of significant developments have occurred, both in markets for natural gas transportation and in economic tools for marketpower assessment. This article will review the current approach for measuring interstate ...

Article describes the issues related to the impact of underground mining exploitation on pipelines in Poland. For this purpose there was conducted the impact analysis of horizontal strains, curvatures and tilt changes of the surface on loads and displacements of these objects. Ground deformations can cause pipelines failures and thereby reduce their reliability. In addition, the examples of typ...

within the framework of international political economy, this article discusses the situation of energy resources, including oil and gas, in central asia and argues that due to abundance of oil and gas resources in such countries as kazakhstan, turkmenistan and uzbekistan, and hefty revenues generated by those resources, statesmen in these countries are planning to turn central asia into a majo...

The fundamental equations which describe the flow through gas and liquid pipelines are formally identical. However, the wide gap between the compressibility ranges of gases and liquids leads to quite different transport characteristics for both kinds of media. While for oil pipelines and pump stations specific topics like batch operation, surges, and possible slack line scenarios have to be con...

Real-time models and associated applications have been widely used to support the safe and effi cient operation of pipelines from within the confi nes of the pipeline operations environment. Commercial systems have also been independently implemented to manage the business relationships between gas suppliers, shippers, transporters, and end users; however, the direct interchange of information ...