Centralized control system of wellhead gas recovery device and control method thereof

Abstract

The invention discloses a centralized control system of a wellhead gas recovery device and a control method thereof, and particularly relates to the technical field of natural gas exploitation. The centralized control system comprises a human-computer interaction interface, wherein the output end of the human-computer interaction interface is electrically connected with the input end of an automatic controller, and the output end of the automatic controller is electrically connected with the input ends of an alarm unit, a protection unit, an automatic reversing control module, an automatic power distribution module and an automatic process control module. According to the centralized control system, a data storage unit, a data communication unit, the alarm unit, the protection unit and a power unit are arranged, so that centralized monitoring of a plurality of systems is realized, the controllability and the safety of the whole system are improved, the investment of personnel is reduced, and the experience dependence on workers is greatly reduced; and the protection unit and the alarm unit are matched, so that the safety of the centralized control system is greatly improved, the standardized operation of the centralized control system is realized, meanwhile, the multi-person inspection operation is not needed, the personnel contact degree and risk are greatly reduced, and the cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of natural gas exploitation, and more specifically, the invention relates to a centralized control system of a wellhead gas recovery device and a control method thereof. Background technique [0002] The wellhead gas recovery business is an effective method to solve the waste caused by natural gas discharge in the process of oil and gas field gas testing and production, some marginal wells, and scattered wells. It is of great significance to save energy and reduce environmental pollution. At present, the wellhead gas recovery business has High temperature and high pressure, flammable and explosive, toxic and harmful, continuous operation, etc. At the same time, there are many wellhead gas recovery companies with uneven management levels. There are no standards for market access and administrative approval, and there are safety and environmental hazards such as disorderly operations. It may lead to accidents ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a centralized control system and control method for a wellhead gas recovery device. The technical problem to be solved by the present invention is: the system unit adopts independent monitoring, instant reversing compression control, monitoring points Many, each control system has no data interaction, centralized linkage monitoring has not been realized, multiple inspection operations are required, the degree of personnel exchanges is high, the risk is high, the cost is high, the maximum compression pressure is 25MPA, the impact is large when the cylinder changes direction, and it cannot be adjusted according to the well conditions. Automatically match power and process control, and there is no integrated control among the various system units during use, so that there is no protection system that can respond quickly and deal with uniformly.

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