Method for closing wells that is used for storing fluid or gas e.g. carbon dioxide in reservoir rocks, involves determining different main function materials with respect to leakage of fluids, and stacking materials in layers in wells

摘要

The method involves determining different main function materials with respect to leakage of fluid. The materials are stacked in successive layers in wells. The different main function of the materials are selected in following list such as sealing to water, sealing to acid gas such as hydrogen sulfide and carbon dioxide, resistant to mechanical constraints and absorption of shear stresses. The materials are selected from a group of water sealing materials, sealing material to carbon dioxide and material resistant to mechanical constraints.