Construction Method and Implementation of Digital Twin System for Marine Reciprocating Natural Gas Compressor Package

Abstract

The marine reciprocating compressor package is essential for extracting natural gas from offshore platforms. However, its complex structure and multi-physics mechanisms, along with sensor limitations, hinder effective monitoring and analysis. Digital twin (DT) technology offers a solution for real-time monitoring and mechanism mapping of such equipment, yet research on DT systems for marine compressors is limited. This paper proposes a method for developing a DT system based on a five-dimension DT model framework, including multi-level geometric and multi-physics mechanism models, as well as real-time process modeling using HYSYS. Additionally, a virtual-reality synchronous operation method is introduced to integrate multi-source data communication and establish a visualized service platform. To validate these methods, a motor-driven two-stage marine reciprocating gas compressor package is used as a case study. Results show that the DT system enables comprehensive monitoring and mechanism mapping, accurately reflecting the operating states in real-time, thus enhancing operational intelligence and control.

Keywords: Digital Twin, Reciprocating compressor package, Real-time monitoring, Multi-physics mechanism, Visualized service platform.