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<p>Crude oil also referred to as petroleum is a resource that is drilled throughout the world. There are three major types of pipelines along the transportation route: the gathering system the interstate pipeline system and the distribution system. Pipelines can also be characterised as interstate or intrastate. Interstate pipelines are similar to the interstate highway system wherein they carry natural gas across state boundaries and in some cases across the country. Intrastate pipelines on the other hand transport natural gas within a particular state. Natural gas pipeline companies have customers on both ends of the pipeline the producers and processors that input gas into the pipeline and the consumers and local distribution companies that take gas out of the pipeline. To manage the natural gas that enters the pipeline and ensure that all customers receive timely delivery of their portion of this gas sophisticated control systems are required to monitor the gas as it travels through all sections of a potentially very lengthy pipeline network. To accomplish the task of monitoring and controlling the natural gas that is traveling through the pipeline centralised gas control stations collect assimilate and manage the data received from monitoring city gate stations and compressor stations all along the pipeline. This book will be useful for the Engineering as well as science graduate postgraduate students and researchers of various universities.</p>
