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Title: Basic Application Of Flow Computers And Telemetry Systems
Author: Bill Herndon Martin Johnson
Source: 2013 International School of Hydrocarbon Measurement
Year Published: 2013
Abstract: Prior to the evolution of flow computers being commonly used in the measurement of hydrocarbons, most telemetry systems were used to collect control information and real time data and provide control commands to a Remote Terminal Unit at major pump and compressor stations. Most of the local metering was being handled by chart recorders and local data collection by operations. These charts and reports were sent to a central facility where the information was used to provide custody transfer reports and or operations reports. Most of the commonly used chart recorders used the standard circular chart format and were mostly pneumatic devices. The collection of the circular charts and the processing of the information to provide billing information was a cumbersome and costly task. The measurement departments often had to deal with discrepencies in data and information that was often months old.

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