A Proposal of a Knowledge Graph for Digital Engineering Systems Integration for Operation and Maintenance Activities in Industrial Plants

Context: Over the last years, we have observed Knowledge Graphs (KGs) being used more and more as a tool for representing knowledge, data integration and querying data. Problem: There are many distinguished yet partially-integrated information management systems used to support the life-cycle of Oil and Gas industrial plants. Our approach considers a 3D plants viewer system, a visual navigation system on platforms, and the integrated intelligent search system. However, these systems lack a semantic integration that can guide the user actions over each functionality for a unique asset. Solution: This paper presents the use of KGs to represent and help monitoring and controlling operational and maintenance activities within an Oil and Gas industrial environment. Our approach highlights the challenges and initial work required to establish a fully-integrated management domain, where the execution of the aforementioned activities can easily be managed. SI Theory: This study draws inspiration from Representation Theory, which posits that an information system faithfully mirrors specific phenomena occurring in the physical world. Method: To develop this work, it was necessary to review the literature related to the development of KGs and ontologies. The generated KG was developed using well-established standards like the Industrial Data Ontology (IDO), and the Capital Facilities Information Handover Specification (CFIHOS), complemented with the use of other ontologies. Summary of Results: A prototype of the conceptual KG was implemented, verifying the viability of our approach for data integration. Contributions and Impact in IS area: The resulted graph contains the main terms in compliance with international semantic standards for representing operational and maintenance activities data associated with facilities involved in Oil and Gas production. Finally, the KG resulting from this effort can be further extended through the incorporation of new tools and subdomains in the industrial plants life-cycle.