High Temperature/pressure Oil-water Relative Permeability Reaction Device 1. Determination of relative permeability of two phases (oil-water, gas-liquid) and three phases (oil, gas, water) by steady-state method or unsteady method; 2. Enhanced oil recovery studies, such as secondary and tertiary oil recovery, polymer injection, ternary oil injection, miscible flooding test; 3. Formation sensitivity (formation damage) assessment, study of foreign substances in drilling, completion, water injection, stimulation and workover operations, formation damage and methods to avoid or mitigate damage; 4. Research on oil production technology, such as acidification, fracturing, water plugging, adjustment of injection-production profile, etc.; 5. Joint test experiment, that is, test the relative permeability of the same rock sample, measure its resistivity and automatically calculate its saturation; 6. Permeability measurement. High temperature and high pressure oil-water relative permeability reaction device technical indicators: