Intelligent monitoring and dynamic fault diagnosis system for underwater Christmas tree

Abstract

The invention belongs to the field of petroleum engineering and particularly relates to an intelligent monitoring and dynamic fault diagnosis system for a subsea tree. The intelligent monitoring and dynamic fault diagnosis system for the subsea tree comprises signal reception and fault diagnosis sub-systems and data acquisition and sonar signal emission sub-systems, wherein the signal reception and fault diagnosis sub-systems are located in a control room on a drilling platform, and the data acquisition and sonar signal emission sub-systems are located in undersea control modules; one data acquisition and sonar signal emission sub-system is arranged in each undersea control module; and data transmission between the signal reception and fault diagnosis sub-systems and data acquisition and the sonar signal emission sub-systems is carried out through sonar. According to the intelligent monitoring and dynamic fault diagnosis system for the subsea tree, the status information of multiple undersea tree systems can be monitored in real time and be respectively emitted to an offshore oil platform through sonar signals to carry out comprehensive diagnostic analysis, so that the safety for marine petroleum exploitation is improved.

Description

technical field [0001] The invention belongs to the field of petroleum engineering, and in particular relates to an intelligent monitoring and dynamic fault diagnosis system for an underwater Christmas tree. Background technique [0002] With the rapid development of offshore oil development, the scope of modern offshore oil exploration and development has gradually moved from offshore and shallow seas to far seas and deep seas, and its development methods have gradually shifted from offshore platforms to underwater production systems. transfer. The underwater production system not only has the ability to improve recovery, solve the problems of oil well output processing and transportation, but also is less affected by the sea level environment, and can be applied to deep water or ultra-deep water oil and gas development, so it has attracted much attention and has been flourishing. develop. The subsea tree is one of the most important equipments in the subsea production sy...

AI Technical Summary

Problems solved by technology

[0003] Experience at home and abroad shows that the subsea tree system has repeatedly failed in different parts of the electronic control system, hydraulic control system and mechanical system, resulting in the shutdown of the platform and causing huge economic losses

Since the subsea tree system is located on the deep seabed, underwater robots are usually used for underwater detection, or the entire tree is lifted to the platform for detection. These fault detection and diagnosis are very difficult and costly

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