Abstract
This study is focused on the using the new tools in reservoir-Petroleum section, Reservoir saturation test (RST) with result of Repeat Formation test (RFT) in production well for enhancement and increasing well production in the F3-sandstone member of the Aouinet – Ouenine Formation of Middle Devonian, which represents the main reservoir producing in the Wafa field with gross thickness ranges from 130 to187feet, with identifies the Hydrocarbon zone. The gathered data that were utilized in performing this study are the Petrophysical analysis of five wells using well log data such as (Gamma Ray Log, Resistivity Log, Neutron Log and Density Log). The applications that were used are Techlog software for analyzing the log data, whereas the Surfer software for mapping. From analyzing the Petrophysics data of the subjected reservoir, the results identify the reservoir contain column of hydrocarbon and water. Besides by integrating the results of Petrophysics with well test (RFT data and RST) for defining the reservoir fluid type and the hydrocarbon will be decrease due to the change of fluid contacts, gas oil contact and oil water contact change, is go- up. the contacts. Moreover, the pressure profiles of F3-sandstone reservoir in subjected wells (X5, X10, X37, X 38 and X39NC196) were constructed. Through the RFT data, RST data and Petrophysics data, most dominated hydrocarbon in the reservoir are mainly two phases Gas and oil zones.