Real-Time Oil Reservoir Evaluation Using Nanotechnology

This innovation is a method and system for evaluating the status and response of a mineral-producing field (e.g., oil and/or gas) by monitoring selected chemical and physical properties in or adjacent to a well site headspace. Nanotechnology sensors and other sensors are provided for one or more underground (fluid) mineral-producing well sites to determine the presence/absence of each of two or more target molecules in the fluid; relative humidity, temperature, and/or fluid pressure adjacent to the well site; and flow direction and flow velocity for the fluid. The nanosensor measures an electrical parameter value and estimates a corresponding environmental parameter value, such as water content or hydrocarbon content. The system is small enough to be located down-hole in each mineral-producing horizon for the well site.