GB/T 45966.1-2025

This standard specifies requirements for managing well integrity throughout the entire life cycle of oil and gas wells, from design and construction through operation, intervention, and final abandonment. It is applied by operators, service companies, and regulators in the petroleum and natural gas industries to establish governance frameworks, risk assessment procedures, and performance criteria that ensure well barriers remain effective and prevent uncontrolled fluid releases. The standard provides a systematic approach for maintaining safety and environmental protection across all well types, including onshore, offshore, and subsea wells.