Dry and wet natural gas combined transportation energy metering and distributing method and system

Abstract

The invention discloses a dry and wet natural gas combined transportation energy metering and distributing method and system. The method comprises the following steps of: a, carrying out gas-liquid separation on fluids produced by a single gas field; b, respectively metering a gas phase fluid and a liquid phase fluid which are obtained after the gas-liquid separation is carried out, so as to obtain energy values of the gas phase fluid and the liquid phase fluid, and adding the energy value of the gas phase fluid and the energy value of the liquid phase fluid to obtain the total energy value of a single gas field fluid; and c, after fluids of multiple gas fields are mixed and processed to be qualified, transporting the mixed fluid to the same production processing facility by virtue of a transportation pipeline to obtain the total output, and calculating the output of each gas field according to the total energy value proportion of each gas field in the total output. The invention also provides a system adopting the method. By adopting the energy metering and distributing method disclosed by the invention, metering and distributing on combined transportation fluid is realized, mining requirement of a marginal gas field is met, and the dry and wet natural gas combined transportation energy metering and distributing method and system have great advantages in comparison in the aspects of the development period and economic investment.

Description

technical field [0001] The invention belongs to the technical field of oil and gas transportation metering, and specifically refers to a method and system for energy metering and distribution of dry and wet natural gas mixed transportation. Background technique [0002] At present, in China, only the natural gas belonging to the same company is measured and sold to downstream customers. The measurement technology is mature, and the sales distribution is simple. It does not involve the mixed transportation measurement and the distribution of the sold natural gas to different companies. For offshore gas fields whose ownership belongs to different corporate legal persons, their own production and processing facilities must be built and installed during development, which requires a large investment and a long construction period. In this way, the exploitation of marginal oil and gas fields or small oil and gas fields will have no economic benefits, and the marginal oil and gas f...

AI Technical Summary

Problems solved by technology

For offshore gas fields whose ownership belongs to different corporate legal persons, their own production and processing facilities must be built and installed during development, which requires a large investment and a long construction period. In this way, the exploitation of marginal oil and gas fields or small oil and gas fields will have no economic benefits, and the marginal oil and gas fields will not be effectively exploited. mining

The marginal gas fields that have been discovered have no economic value due to independent exploitation, so they must be exploited by relying on the processing facilities of other gas fields. This requires solving the technical problems of mixed transportation, metering and distribution, and finding an economically and technically feasible method of mixed transportation and metering distribution to develop marginal gas fields. Meet the requirements of national economic development for energy demand

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