Implementing a Risk-Based Integrity Management System (CIMS) in Upstream Oil & Gas Operations

Abstract Repsol has recently implemented an integrity management system for static equipment, including vessels, piping, tanks, PSVs and pipelines, featuring a risk-based inspection (RBI) module. This software, known as the Computerized Integrity Management System (CIMS), has significantly enhanced operational oversight across multiple upstream assets. The CIMS implementation involved deploying a specialized software platform focused on four core areas: (1) inspection data management, (2) anomaly management, (3) RBI assessments, and (4) preventive and corrective maintenance planning. This transition marked a major shift in the Company's integrity practices, requiring cross-disciplinary collaboration and strong management support to ensure resource alignment and successful adoption. By centralizing integrity data and enabling in-house inspection capabilities, CIMS has improved visibility, ownership, and responsiveness. The shift from a time-based to a risk-based inspection strategy has allowed the Company to prioritize resources toward higher-risk equipment, optimizing inspection intervals and enhancing safety and reliability. This paper will present the implementation journey, highlight key challenges and lessons learned, and outline future plans for continuous improvement.