Methane Recovery with Carbon Dioxide Sequestration as Hydrates in Deep Marine Environments: An Extensive Examination of Potential, Technical Advancements, and Economic Feasibility

Abstract

In this study we aim to evaluate carbon dioxide (CO2) hydrate sequestration in ultradeep marine settings, focusing on the Indian deepwater context. Major scientific issues and opportunities are highlighted, including methane (CH4) production through hydrate formation. Economic, regulatory, and technical aspects are explored comprehensively, considering Indian offshore zones. The research involves comparing deposition and potential reserves with CO2 hydrate formation characteristics, kinetic promoters, and potential factors for optimal design criteria. Factors affecting hydrate development, like porosity, salinity, and CO2 interactions, are discussed. Technological and environmental feasibility of hydrate-based carbon sequestration in subsea basins are established. Challenges include kinetics, diffusion, and economics for large-scale Indian basin testing. Chemical interactions, pore water saturation, and depositional environment effects are summarized. We also outline the research necessary for commercial CO2 hydrate storage in Indian basins, building upon previous work. This research contributes to CO2 sequestration and substantial CH4 production in deep marine environments.