FLUID COMPOSITION AND METHOD FOR GENERATING HYDROGEN FROM FLOW-BACK HYDRAULIC FRACTURING FLUID
A method for generating hydrogen includes oxidizing a natural polysaccharide included in a fracturing fluid in a subterranean formation, extracting the fracturing fluid from the subterranean formation, purifying the fracturing fluid, and treating the fracturing fluid. The method further includes introducing at least one additive into the fracturing fluid, introducing at least one microbial biomass into the fracturing fluid, and biodegrading the natural polysaccharide in the fracturing fluid with the at least one microbial biomass to produce hydrogen, reaction products and non-degrading products. A fluid composition includes a natural polysaccharide, at least one microbial biomass, an oxidizing agent, at least one additive, and a fluid medium. The microbial biomass includes a hydrogen-producing bacteria. A method for producing a fluid composition includes sequentially adding an oxidizing agent, an additive, and a microbial biomass to a source fracturing fluid. The source fracturing fluid includes a natural polysaccharide and a fluid medium.
Fecha publicación: 2025/05/30
Número: WO2025110893A1 (A1)
Solicitante: SAUDI ARABIAN OIL COMPANY?[SA]; ARAMCO INNOVATIONS LLC?[RU]