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Lease automatic custody transfer system ( LACT) is an important device for custody and settlement between different companies, which has been used widely in oil field, oil depot, oil transportation station of domestic and abroad. Standardizing or skid-mounted design is developed for LACT generally. The Calibration system is used to calibrate measuring system, and is designed as the important component of LACT. There exist the differences of design at domestic and abroad. This paper analyzes the process flow, system component, difficulties in design, characteristic of package mounted, etc. of LACT package, and provides a reference is for skid-mounted design of crude oil custody measurement system. [ABSTRACT FROM AUTHOR]

In this paper, the design process of natural gas compressor station project was introduced by the specific design example. From all aspects of theoretical design, automatic design, safety design, equipment selection, commissioning, etc., the reasonable design, selection and prioritization scheme were proposed to bring the design to meet the requirements of environmental protection and safety. And by the actual operation data analysis, the reasonable design and operation scheme were proposed to provide the necessary reference for the design of natural gas compressor station. [ABSTRACT FROM AUTHOR]