Identifying hydrogen sweet spots in subsurface formations

A system for identifying natural hydrogen sweet spots in a subsurface formation, the system comprising:

• at least one processor;
• and
• a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• performing pyrolysis of rock samples to determine an amount of hydrogen generated in the rock samples;
• determining kinetic parameters based on the performed pyrolysis and a thermal history of the subsurface formation;
• simulating hydrogen generation in the subsurface formation based on the determined kinetic parameters to predict target maturity data for hydrogen richness in the subsurface formation;
• measuring total organic content and rock sample maturity data for the rock samples;
• and
• identifying hydrogen sweet spots in the subsurface formation based on the target maturity data, the total organic content, and the measured rock sample maturity data.

A method for identifying natural hydrogen sweet spots in a subsurface formation, the method comprising:

• obtaining pyrolysis data from pyrolysis of rock samples performed to determine an amount of hydrogen generated in the rock samples;
• determining kinetic parameters based on the pyrolysis data and a thermal history of the subsurface formation;
• simulating hydrogen generation in the subsurface formation based on the determined kinetic parameters and the thermal history to predict target maturity data for hydrogen richness in the subsurface formation;
• obtaining total organic content and rock sample maturity data for the rock samples;
• and
• identifying hydrogen sweet spots in the subsurface formation based on the target maturity data, the total organic content, and the rock sample maturity data.