Detecting downhole fluid composition utilizing photon emission

A system, comprising:

• a container or a conduit, capable of containing a target fluid under a fluid pressure, wherein the container or the conduit is located downhole in a borehole;
• a detector system, capable of determining a chemical signature result of the target fluid;
• a source controller, capable of focusing emitted energy from an energy source, wherein the source controller is one of a source waveguide or a pulsed neutron tool, and the energy source is an x-ray source or a gamma ray source;
• and
• a detector waveguide, capable of detecting the emitted energy from within the target fluid, wherein the source controller has a source controller first end coupled to the energy source and a source controller second end proximate the target fluid, and the detector waveguide has a detector waveguide first end coupled to the detector system and a detector waveguide second end proximate the target fluid and proximate the source controller second end, and where the source controller first end and the detector waveguide first end are external of an external diameter of the container or the conduit, the source controller second end and the detector waveguide second end are internal of an internal diameter of the container or the conduit.

A method, comprising:

• locating a source waveguide wherein a first end of the source waveguide is located external of an external diameter of a container or a conduit and a second end of the source waveguide is located internal of an internal diameter of the container or the conduit, and the first end of the source waveguide is coupled to an energy source;
• locating a detector waveguide wherein a first end of the detector waveguide is located external of the external diameter of the container or the conduit and a second end of the detector waveguide is located internal of the internal diameter of the container or the conduit, and the second end of the detector waveguide is proximate the second end of the source waveguide;
• detecting one or more measurements from a target fluid located in the container or the conduit using the source waveguide and the detector waveguide;
• and
• generating a chemical signature result utilizing the one or more measurements, wherein the generating is performed by a detector system coupled to the first end of the detector waveguide.