Underwater equipment biological corrosion automatic safety well shut-in system

Abstract

The invention relates to an underwater equipment biological corrosion automatic safety well shut-in system, which is composed of a biological corrosion monitoring system and an automatic safety well shut-in system. The biological corrosion monitoring system comprises a plurality of resistance measuring elements and a signal processing module, wherein the resistance measuring elements are arrangedat monitoring positions requiring biological corrosion monitoring of underwater equipment separately, and measure biological corrosion data at the monitoring positions in real time by adopting a resistance measuring method; the signal processing module is arranged inside the underwater equipment, is connected with the resistance measuring elements by means of circuits, determines whether a presetbiological corrosion thickness threshold value is exceeded according to the received biological corrosion data, and outputting monitoring early-warning signals; and the automatic safety well shut-in system and the biological corrosion monitoring system are connected by means of a circuit, and automatically controls well shut-in when the monitoring early-warning signals are received. The underwaterequipment biological corrosion automatic safety well shut-in system can monitor the biological corrosion situation of the underwater equipment in real time, automatically controls the well shut-in timely when the corrosion situation is severe, guarantees the safety production, and avoids production accidents caused by biological corrosion.

Description

technical field [0001] The invention relates to a safety protection device for underwater equipment, in particular to an automatic safety shut-in system for biological corrosion of underwater equipment, which belongs to the technical field of monitoring and early warning. Background technique [0002] With the continuous development of human society and technology, our demand for energy is also increasing, which makes human exploration of underwater energy more and more frequent, so various underwater engineering construction and investment are also increasing. Especially in subsea oil exploration, the main underwater equipment used is the Christmas tree. [0003] At present, in addition to chemical corrosion and electrochemical corrosion, underwater fouling organisms and their metabolites (such as oysters, barnacles, sea anemones, etc.) will also cause marine corrosion to underwater equipment such as oil trees. The equipment has a serious corrosion effect. Due to the comp...

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Problems solved by technology

Due to the complex situation of the marine underwater environment, it is still impossible to conduct real-time, rapid and direct observation and monitoring of the specific corrosion conditions of various underwater equipment. As a result, the severity of underwater corrosion of Christmas trees and other equipment is unknown, and there is a high probability that it will A safety accident occurs during a dangerous period, causing major loss of life and property

[0004] For underwater Christmas trees and other equipment, if the manual monitoring mode is used for management and monitoring, it will still face maintenance difficulties and even more difficult management in actual operation

At the same time, manual monitoring is also extremely susceptible to external interference factors, and it cannot guarantee that various underwater engineering equipment can be shut down in time in case of an emergency, so that greater losses cannot be avoided

[0005] Therefore, the current conventional safety measures are to regularly land underwater equipment for maintenance and protection, but this method still cannot respond to emergencies in a timely and effective manner.

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