Method and system for reservoir surveillance utilizing a clumped isotope and/or noble gas data

A method of producing hydrocarbons comprising:

• obtaining one or more samples from one or more subsurface regions of interest;
• analyzing the one or more samples to determine a noble gas signature and a hydrocarbon clumped isotope signature for each of the obtained one or more samples, wherein the noble gas signature comprises an indication of the concentrations and isotopic ratios of noble gases in each sample and wherein the hydrocarbon clumped isotope signature comprises an indication of the concentration of one or more hydrocarbon isotopologues in each sample having two or more rare isotopes in close proximity;
• generating a region of interest fingerprint comprising the noble gas signature and the hydrocarbon clumped isotope signature for the obtained one or more samples;
• producing fluids from one of the one or more subsurface regions of interest, wherein the produced fluids comprise hydrocarbons;
• and
• performing reservoir surveillance on the produced fluids from the one of the one or more subsurface regions of interest,
• wherein performing reservoir surveillance on the produced fluids comprises:
• obtaining a first sample from the produced fluids;
• analyzing the first sample to determine a first sample fingerprint, wherein the first sample fingerprint comprises a noble gas signature of the first sample and a hydrocarbon clumped isotope signature of the first sample, wherein the noble gas signature of the first sample comprises an indication of the concentrations and isotopic ratios of noble gases in the first sample, and wherein the hydrocarbon clumped isotope signature of the first sample comprises an indication of the concentration of one or more hydrocarbon isotopologues in the first sample having two or more rare isotopes in close proximity;
• and
• comparing the first sample fingerprint to the region of interest fingerprint.