Injecting multiple tracer tag fluids into a wellbore

A wellbore cuttings tagging system comprising:

• a controller configured to:
• determine a plurality of injection concentrations of a respective plurality of tracer tag fluids, wherein each respective plurality of tracer tag fluids comprises a respective plurality of synthesized polymeric nanoparticles suspended in a respective solution, the respective plurality of synthesized polymeric nanoparticles configured bind to a respective wellbore cutting, wherein the respective plurality of synthesized polymeric nanoparticles is configured to undergo a thermal de-polymerization at a respective temperature, and wherein thermal de-polymerization of the respective plurality of synthesized polymeric nanoparticles generates a respective mass spectra;
• determine an injection sequence of the respective plurality of tracer tag fluids into a wellbore, the injection sequence comprising:
• an injection duration, wherein the injection duration is determined by a depth interval of the wellbore to be tagged by the respective plurality of synthesized polymeric nanoparticles;
• and
• an injection pause, wherein the injection pause prevents mixing the plurality of tracer tag fluids in the wellbore;
• and
• inject the respective plurality of tracer tag fluids into the wellbore, according to the plurality of injection concentrations and the injection sequence;
• a plurality of tracer tag fluid tanks configured to store each of the respective plurality of tracer tag fluids at a plurality of respective known concentrations;
• a buffer fluid tank configured to store a buffer fluid;
• an air tank configured to store pressurized air;
• a first plurality of valves positioned in a respective first plurality of conduits fluidically connecting the air tank to the respective plurality of tracer tag fluid tanks and the buffer fluid tank;
• and
• a second plurality of valves positioned in a respective second plurality of conduits fluidically connecting the respective plurality of tracer tag fluid tanks to the wellbore and the buffer fluid tank, the second plurality of valves configured to allow flow from the plurality of tracer tag fluid tanks and the buffer fluid tank into the wellbore and stop flow from the wellbore into the plurality of tracer tag fluid tanks and the buffer fluid tank.

A drilling system comprising:

• a drilling rig configured to drill a wellbore in the Earth comprising:
• a drill assembly configured to create wellbore cuttings of the Earth and to conduct a drilling mud to a downhole location, the drill assembly disposed in the wellbore, wherein the drilling mud exits the drilling assembly at a drill mud exit orifice at a bottom surface of the drilling assembly;
• a drilling mud pit;
• a mud pump with a mud pump suction fluidically coupled to the drilling mud pit and a mud pump discharge fluidically connected to the drilling assembly;
• and
• a wellbore cuttings tagging sub-system comprising:
• a controller configured to:
• determine a plurality of injection concentrations of a respective plurality of tracer tag fluids, wherein each respective plurality of tracer tag fluids comprises a respective plurality of synthesized polymeric nanoparticles suspended in a respective solution, the respective plurality of synthesized polymeric nanoparticles configured bind to respective wellbore cuttings, wherein the respective plurality of synthesized polymeric nanoparticles is configured to undergo a thermal de-polymerization at a respective temperature, and wherein thermal de-polymerization of the respective plurality of synthesized polymeric nanoparticles generates a respective mass spectra;
• determine an injection sequence of the respective plurality of tracer tag fluids into a wellbore, the injection sequence comprising:
• an injection duration, wherein the injection duration is determined by a depth interval of the wellbore to be tagged by the respective plurality of synthesized polymeric nanoparticles;
• and
• an injection pause, wherein the injection pause prevents mixing the plurality of tracer tag fluids in the wellbore;
• and
• inject the respective plurality of tracer tag fluids into the wellbore,
• according to the plurality of injection concentrations and the injection sequence;
• a plurality of tracer tag fluid tanks configured to store each of the respective plurality of tracer tag fluids at a plurality of respective known concentrations;
• a buffer fluid tank configured to store a buffer fluid;
• an air tank configured to store pressurized air;
• a first plurality of valves positioned in a respective first plurality of conduits fluidically connecting the air tank to the respective plurality of tracer tag fluid tanks;
• and
• a second plurality of valves positioned in a respective second plurality of conduits fluidically connecting the respective plurality of tracer tag fluid tanks and the buffer fluid tank to the wellbore, the second plurality of valves configured to allow flow from the plurality of tracer tag fluid tanks and the buffer fluid tank into the wellbore and stop flow from the wellbore into the plurality of fluid tag tanks;
• and
• wherein the second plurality of conduits are fluidically connected to the mud pump suction.