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Abstract This paper details the inaugural implementation of a novel non-explosive tubing puncher in well plug and abandonment (P&A) operations in Thailand, marking a significant evolution in operational safety by circumventing the use of explosives. The industry's historical reliance on non-explosive punchers, while reducing explosive risks, faced limitations in efficiency, flow area capabilities, and need the electric line units. Addressing these constraints, the new technology puncher integrates a hydraulic press system with electronic control powered by an alkaline battery, enabling slickline operations and negating the need for electric lines. The tool's multi-punch head design introduces unparalleled flexibility, allowing for the adjustment of the flow area and punch hole phasing. This precision is achieved through an activated battery triggered by slickline motion, initiating the puncher's function and ensuring completion within a predefined timeline. Operational risk and the necessity for stringent personal zone management are drastically reduced, streamlining the P&A process. The non-explosive puncher requires approximately 40 minutes at punch depth, with reduced surface preparation time, offering a competitive overall operation duration compared to traditional methods. Notably, the cement pumping operations through six of 0.5-inch punch holes align with the flow area specifications of explosive punchers, maintaining standard pumping rates and pressures across variable well depths. The barrier integrity, rigorously tested, met industry standards throughout the trials. The introduction of this advanced non-explosive puncher signifies a breakthrough in safety and operational efficiency. It enhances personnel safety by facilitating offline tubing punch activities, thereby simplifying the P&A process. This innovative approach not only reduces operational risks but also represents a paradigm shift in well abandonment methodology, contributing significantly to the body of knowledge in P&A operations.
Panoot et al. (Tue,) studied this question.