The idea of underground storage of hydrogen exists today in several forms. One of the most promising methods is the option of underground methanation, which consists of injecting H₂ and CO₂ into an underground porous reservoir (aquifer) and converting them into methane by means of methanogenic bacteria that initiate the methanation reaction. However, due to their activities, the high accumulation of bacteria in the pore walls causes pore-clogging (microbial-induced clogging); one of the main problems that can become an obstacle to the implementation of this idea. In this paper, we develop a conceptual model of bio-clogging, which consists of several stages of attachment to pore walls, detachment from the walls and pore plugging by the biomass growth. This model was built into the numerical model of multicomponent two-phase flow. The effect of bio-clogging on gas movement in the storage was analyzed numerically. It has been found that bio-clogging reduces vertical rise of hydrogen and results in more uniform radial gas penetration into the reservoir.

如今，地下储氢的想法以多种形式存在。最有前途的方法之一是地下甲烷化的选择，包括注入 H ₂和 CO ₂进入地下多孔水库（含水层），并通过引发甲烷化反应的产甲烷细菌将其转化为甲烷。然而，由于它们的活动，细菌在孔壁中的大量积累会导致孔堵塞（微生物引起的堵塞）；可能成为实施这一想法的障碍的主要问题之一。在本文中，我们开发了一个生物堵塞的概念模型，它包括附着在孔壁上、从壁上脱离和由生物质生长引起的孔堵塞的几个阶段。该模型建立在多组分两相流数值模型中。数值分析了生物堵塞对库内气体运动的影响。