Increasing Efficiency in Well Abandonment Utilizing Hydromechanical Slotting Tool

Abstract

As the number of the wells designated for the abandonment or slot recovery operations increase, multiple challenges are faced during the barrier placement and removal of the casing. Achieving operational efficiency is crucial. Till now, conventional solutions included milling of the casing, throughout history, conventional solutions involved milling processes and the use of charges to establish channels for either barrier placement or cement remediation or reduction of stuck forces, thereby enhancing casing removal efficiency. This paper will explain the new technology which includes a hydro-mechanical tool that creates the slots into the casing to allows the access behind. This innovative approach aims to significantly improve efficiency during the well abandonment phase. The tool's capability extends to breaking down the barite accumulation behind the casing or facilitating the precise placement of cement for sustained casing pressure solutions or annular cement remediation. The incorporation of this advanced technology marks a paradigm shift in addressing the challenges associated with well abandonment, offering a more streamlined and effective solution.