SPE Reservoir Simulation Conference, Год журнала: 2025, Номер unknown
Опубликована: Март 18, 2025
Abstract This study is a preliminary model of hydrogen generation from stimulated ultramafic rocks. A coupled thermohydrochemical simulates the multifaceted processes heat transfer, fluid flow, and chemical reactions, accounting for generation, phase changes, thermal energy release, new material formation during induced serpentinization. Some inputs were experimental data, others taken works in literature. The rock was compared to base unstimulated rock. also used explore various well configurations. run two months with 15 days injection, shut-in, 30 production. simulations rocks revealed larger yield than case. For vertical wells, case gave two-fold increase produced Also, cumulative production wells layer nearly equivalent that horizontal wells. While an lateral length initially resulted gas rates, allowed more water production, leading rapid decline rate leveling different lengths. Catalysis identified as significant factor improving reaction rates lowering activation huge within layer. In presence seal/caprock, modeled this study, can act temporary accumulation site. Sensitivity analysis conducted evaluate effects fault thickness on migration accumulation. scenarios, exhibited minimal influence Conversely, sensitivity scenarios increasing negatively impacted However, porous medium layer, increased led enhancement observed up thousand-fold. These findings deduce optimal conditions migration, indicate catalysis speed thick allow generated hydrogen, vicinity source make effective configuration maximizing suggests there are opportunities optimize operational parameters improve generation. There need lot data finetune model, grid refinement studies, codes complex associated provides critical insights engineering optimized systems, pioneers advancement modeling potential low-carbon technology.
Язык: Английский