Hydrocarbon determination in unconventional shale

An apparatus for identifying a fluid and locations of the fluid in a formation of shale comprising porous kerogen material and an inorganic matrix defining pores and micro-fractures, the apparatus comprising:

• a carrier configured to be conveyed through a borehole penetrating the shale comprising porous kerogen material and an inorganic matrix defining pores and micro-fractures;
• a nuclear magnetic resonance (NMR) tool disposed at the carrier and configured to perform NMR measurements on the shale comprising porous kerogen material and an inorganic matrix defining pores and micro-fractures, the NMR measurements comprising a spectrum of transverse relaxation times;
• and
• a processor configured to receive NMR measurements on the shale comprising porous kerogen material and an inorganic matrix defining pores and micro-fractures performed by the NMR tool and to identify the fluid and locations of the fluid in the shale comprising porous kerogen material and an inorganic matrix defining pores and micro-fractures using the spectrum of transverse relaxation times.