Innovative Techniques for Managing Sustained Annulus Pressure in Highly Fractured Carbonate Field

Sustained Annulus Pressure (SAP) represents a prevalent challenge in the operational lifecycle of oil and gas wells, with reported incidence rates of approximately 44%. This paper investigates the specific challenges associated with SCP in Natih field, an aged and highly fractured carbonate field located in the Sultanate of Oman. It evaluates the efficacy of two innovative technologies - Perf, Wash & Cement and Local Expander technology - in addressing this issue. The discussion commences with an overview of SAP in the field and its criticality within our operational philosophy. The scope extends to the practical application of these technologies across diverse well conditions, emphasizing their impact on operational efficiency. A comprehensive analysis of field applications of both technologies is presented, encompassing procedural steps and process flow analysis to highlight operational efficiencies achieved during various stages of well intervention. The results demonstrate a substantial reduction in sustained annulus pressure, accompanied by enhanced well integrity and operational safety. Observations indicate that these technologies not only augment current practices but also provide environmentally safer solutions. The paper concludes that these technologies have the potential to revolutionize well pressure management strategies. Furthermore, this paper contributes new insights into the field of well pressure management, particularly concerning sustained annulus pressure. By analyzing the practical applications of Perf, Wash & Cement and Local Expander technology, it enriches the existing knowledge base and presents innovative solutions that can significantly enhance efficiency, safety, and environmental sustainability within the petroleum industry. Finally, the paper outlines the next steps in our ongoing efforts to combat SAP, providing a roadmap for future endeavors in this area.