Mathematical models for calculating costs in the information and measurement system of gas accounting

Abstract

With the help of information and measurement systems, it is possible to significantly improve gas consumption accounting at oil and gas enterprises. The use of the ultrasonic method for measurements is quite promising. It makes it possible to measure various substances without direct contact, the transceiver elements have high reliability, since there are no moving parts, the range of measurements is theoretically unlimited. The ultrasonic flow transducer (UZPV) is an acoustic flow transducer operating in the ultrasonic frequency range, in which a measurement information signal is created based on the dependence of the acoustic effect in the gas flow on its flow rate. The classification of ultrasonic flow transducers and variants of the arrangement of the acoustic paths of the ultrasonic flow transducers, the theoretical basis of the measurement method, are considered. Methods of calculating volume flow in working conditions, mass flow and volume flow of gas brought to standard conditions, volume flow and volume of the dry part of wet gas brought to standard conditions and calculation of energy content of gas are given.

Keywords

• gas flow measurement error
• ultrasonic measurement method
• information-measuring system