The files in the UNICAMP data repository contain experimental data from both single-phase and two-phase flow tests. These datasets support the thesis “Experimental Study of Gas–Liquid Viscoplastic Two-Phase Flow in Pipelines,” conducted at the UNICAMP Center for Energy and Petroleum Studies (CEPETRO) and submitted to the School of Mechanical Engineering. The repository includes rheological measurements, Particle Image Velocimetry (PIV) results, and instrumentation data such as pressure, differential pressure, gas and liquid mass flow rates, and temperature.