Plasma chemistry based analysis and operations for pulse power drilling

A system comprising:

• a pulse power drill string configured to be positioned in a borehole formed in a subsurface formation, wherein the pulse power drill string comprises a drill bit with one or more electrodes to periodically emit an electrical discharge to drill the borehole;
• a sample extractor configured to collect a sample of a drilling fluid that circulated down the borehole and that interacted with the electrical discharge;
• an analysis system configured to determine a concentration of at least one chemical reaction product in the sample of the drilling fluid;
• a processor;
• and
• a computer-readable medium having instructions stored thereon that are executable by the processor to cause the processor to,
• determine that at least one of a fluid loss and a fluid influx had occurred within the borehole based at least in part on the concentration of the at least one chemical reaction product in the sample of the drilling fluid.

A non-transitory, computer-readable medium having instructions stored thereon that, when executed by a processor, cause the processor to perform operations comprising:

• performing a chemical analysis on a sample of drilling fluid, wherein the sample of drilling fluid includes a portion of a drilling fluid that has interacted with an electrical discharge generated by an electrode of a pulse power drilling apparatus operating in a borehole;
• determining that a fluid influx has occurred within the borehole based at least in part on the chemical analysis of the sample of drilling fluid;
• and
• typing one or more formational fluids included in fluid influx based at least in part on the chemical analysis of the sample of drilling fluid.