A seminar entitled (The Hydrogeochemistry of Water Injection and Its Effect on Petrophysical Properties of Upper Sand Member of Zubair Formation in West Qurna 1 Oil Field , Southern Iraq.).  Hold at the College of Science, Geology Department. The presenter Zahraa Abdullah Muzaal demonstrates the most important objectives of Assessing the reservoir petrophysical characteristics include reservoir porosity, permeability, and pore throat system,  Diagnosing the physical, chemical, and biological properties of the water injection used in the Zubair Formation producing in the West Qurna oil field, Using chemical compatibility simulation to determine the compatibility between water injection and water reservoir, and Diagnosing the mechanism of formation damage by Mineral analysis of studied reservoir to evaluate the clay and non-clay minerals type and their impact on the reservoir.