Fault diagnosis method and system for digital twin-driven offshore oil underwater production system

Abstract

The invention belongs to the field of petroleum engineering, and particularly relates to a fault diagnosis method and system for a digital twin-driven offshore oil underwater production system. The fault diagnosis method for the digital twin-driven offshore oil underwater production system comprises three steps of digital twin body establishment, digital twin body tracking and updating and fault diagnosis reasoning model establishment. The fault diagnosis system for the digital twin-driven offshore oil underwater production system comprises seven parts: a data collection and analysis subsystem, a water control module data acquisition and processing subsystem, a hydraulic power unit data acquisition and processing subsystem, an electric power unit data acquisition and processing subsystem,an underwater control module data acquisition and processing subsystem, an underwater control module electronic module group data acquisition and processing subsystem and an underwater Christmas treedata acquisition and processing subsystem.

Description

technical field [0001] The invention belongs to the field of petroleum engineering, and in particular relates to a method and system for fault diagnosis of an offshore oil underwater production system driven by a digital twin. Background technique [0002] The subsea production system is one of the key facilities for exploiting deepwater oil and gas fields, and has been widely used in the development of deepwater oil and gas fields all over the world. The subsea production system is mainly composed of subsea wellhead, Christmas tree, jumper pipe, subsea pipeline, umbilical cable and control system. Through the remote control of the control system, the oil and gas produced by the oil and gas well can be transported from the seabed to the supporting equipment or onshore. on the terminal. The underwater production system can not only improve the recovery rate, solve the problems of oil well output processing and transportation, but also be less affected by the sea level enviro...

AI Technical Summary

Problems solved by technology

[0003] The structure of the underwater production system is complex and the working environment is harsh. Once a failure occurs, it will cause huge economic losses and serious environmental pollution

Since the underwater production system is located on the deep seabed, underwater robots or overall lifting are usually used to diagnose and locate faults, which is difficult to operate and expensive

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