This dataset comprises field logging data collected during chemical-based tool deployments at the Utah FORGE geothermal site, specifically at monitoring well 58-32 and production well 16B(78)-32. Data acquisition occurred during the Summer 2024 circulation testing campaign, with tool runs in well 58-32 conducted between June 12-14, 2024, and in well 16B(78)-32 on August 19, 2024. The chemical sensing system utilized chloride ion-selective electrodes (ISEs) and associated high-temperature electronics integrated into a wireline assembly, enabling real-time measurement of inflow characteristics within geothermal wells. The dataset includes raw and cleaned measurements from Run-In-Hole (RIH) and Pull-Out-of-Hole (POOH) operations at both wells. The CSV files below house all raw and cleaned data, named after the associated well, operation type (RIH and POOH), and whether it is raw, cleaned, or supplemented with calculations. Data entries are timestamped and include variables such as depth, chloride concentrations (in voltage and calculated molar units), pressure, temperature, tool velocity, and various sensor outputs. Calculated fields derived from processed signals are also provided. Units are labeled in the data files, with concentration values reported in mol/L and pressure in PSI. The accompanying documentation includes data processing explanations, presentations visualizing results, and a final project report.