Monitoring carbon sequestration in source rock reservoirs using stable isotopic fractionation to quantify its retention efficiency

Abstract

A process for monitoring and quantifying anthropogenic carbon retained within a reservoir includes, measuring δ13C and δ18O of in situ reservoir CO2 and calculating endpoint values of the in situ CO2 using δ13C and δ18O, measuring δ13C, and δ18O of anthropogenic CO2 and calculating endpoint value of the anthropogenic CO2 using δ13C and δ18O, injecting anthropogenic CO2 into the reservoir, obtaining volume or mass of anthropogenic CO2, collecting a produced sample from the reservoir after a period of time, measuring δ13C, and δ18O of a mixed in situ and anthropogenic CO2, and calculating the anthropogenic CO2 sequestered in the reservoir by using the endpoint values. A anthropogenic CO2 monitoring and quantifying system includes, injection wells, production wells, measurement devices for measuring an amount of CO2 injected and produced, and a measurement collection and analysis system for receiving gas samples and for measuring an amount of CO2 sequestered within the reservoir.

Dependencies are inferred from the claim text.