Oil field water flooding monitoring system based on PROFIBUS fieldbus

Abstract

The invention discloses an oil field water flooding monitoring system based on a PROFIBUS fieldbus, comprising a monitoring host computer, a plurality of master station PLC modules, and a plurality of slave station PLC modules; wherein the monitoring host computer is connected with a printer, each master station PLC module is connected with a first PROFIBUS-DP communication adapter and a touch type liquid crystal display screen, each slave station PLC module is connected with a second PROFIBUS-DP communication adapter; the input end of each slave station PLC module is connected with an operation button, a water knockout trap pressure meter, a pipe pressure meter and a main line flow meter; and the output end of each slave station PLC module is connected with a flow valve, a liquid crystal display screen ad an over-limit alarm. The oil field water flooding monitoring system of the present invention is simple in structure, reasonable in design, convenient in realization, high in system stability, quick in communication speed, high in reliability, good in real-time performance, helpful for improving water flooding efficiency, good in usage effect, and convenient in popularization and usage.

Description

technical field [0001] The invention belongs to the technical field of oil field steady flow water injection, and in particular relates to an oil field water injection monitoring system based on PROFIBUS field bus. Background technique [0002] Oilfield water injection mostly adopts single-pipe multi-branch process. With the extension of water injection time and the difference in water absorption capacity of single wells, it is difficult to control the water injection volume of a single well, and the water injection volume of a single well will fluctuate with the fluctuation of water injection pressure, resulting in The phenomenon of over-injection and under-injection occurs, making it difficult to achieve smooth water injection. In order to achieve fine and steady flow water injection and reduce the difficulty of operation by staff, researchers at home and abroad have begun to develop steady flow water injection monitoring technology, hoping to monitor the instantaneous flo...

AI Technical Summary

Problems solved by technology

At present, the monitoring of oil and water wells has been basically realized. However, the oilfield water injection monitoring system in the prior art still has complex networking, poor flexibility, weak signal strength, poor effectiveness in data processing, and cannot well realize the collected data. The defects and insufficiencies of the automatic inspection of data and the remote dispensing of water injection volume cannot realize smooth water injection, quantitative water injection and accurate water injection.

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