Extended Subsequent Applications Review ("ESAR")

Extended Subsequent Applications Review (ESAR) in Oil & Gas: Navigating Program Transitions and Changes

In the complex and dynamic world of oil and gas, projects often evolve, requiring adjustments to their execution and operational environment. This can involve shifts in contractor conditions, transitions between development phases, or substantial modifications to existing systems. To ensure ongoing compliance and safety, the oil and gas industry utilizes the Extended Subsequent Applications Review (ESAR) process.

What is an ESAR?

An ESAR is a formal review conducted in lieu of a full C/SCSC (Critical Safety & Security Control System) demonstration review. It's triggered by significant changes that impact the program's safety and security, such as:

• Program Phase Transitions: Moving from research and development into production, or from one stage of development to another.
• Contractor Facility Changes: Relocating a program to a new facility, involving different infrastructure and procedures.
• Significant C/SCSC System Modifications: Major changes to the design, implementation, or documentation of safety and security systems.

Benefits of an ESAR:

• Efficiency: ESARs offer a more streamlined approach compared to full C/SCSC demonstrations, saving time and resources.
• Targeted Evaluation: By focusing on the specific changes, ESARs ensure that the review process remains efficient and effective.
• Continuous Improvement: ESARs provide an opportunity to identify potential weaknesses and implement corrective actions, enhancing safety and security protocols.
• Compliance Verification: They help verify that the program continues to meet regulatory requirements, even after significant changes.

The ESAR Process:

The ESAR process typically involves the following steps:

1. Triggering Event: Identifying the specific change that necessitates an ESAR.
2. Documentation Review: Thoroughly examining documentation related to the changes, including design documents, operating procedures, and safety analyses.
3. Assessment: Evaluating the impact of the changes on the C/SCSC system and determining if they introduce any new risks.
4. Corrective Action Plan: Developing a plan to address any identified risks or non-compliance issues.
5. Implementation and Verification: Implementing the corrective actions and verifying their effectiveness.
6. Documentation: Updating relevant documentation to reflect the changes and the results of the ESAR.

Conclusion:

The ESAR process is a critical tool for ensuring ongoing safety and compliance in the oil and gas industry. It provides a structured approach for managing program changes, minimizing risks, and maintaining a robust safety and security framework. By effectively utilizing ESARs, stakeholders can navigate evolving project landscapes while maintaining a high level of safety and operational integrity.