Omer Eisa Hamid Khalifa2023-03-162023-03-162016http://hdl.handle.net/123456789/19021A dissertafion Submitted to the Graduate College in partial Fulfilment of the requirements for the Master Degree of Science in Exploration GeophysicsThis study represents the petrophysical evaluation of Bentiu Formation- Muglad basin, Diflia west oil field block (4) using well logs. A Sl1CC¢SSfl.11pClJ‘0phySiC3.1 interpretation for any hydrocarbon system still motivates the researchers, to conduct more studies to discover a new productive zones as well as to sustain their continuity productivity. In this study petrophysical evahtation had been done for five wells using Interactive Petrophysics software to detect the petroleum parameters and reservoir characteristics in the study area. Focusing on Bentiu formation Evaluation which is the main reservoir at this part of Muglad basin manually compared with interpretation for all logs have been done to confirm the sofiware results. Many reservoirs in addition of many determination, water cuthad had been determined, which were considered to be negatively aflection on the fixture production rates. The solution of this reduction impact was aheady proposed. Comprehensive results were achieved atter calculating the amount and distribution of shale throw all the layers of Bentiu Formation using single curve method determination, the average porosity of Bentiu Formation about 15%, and average water saturation had also been determined by 62% these values were considered to be very compatible with the characteristics of the reservoirs but some diiferent cases had been noted, such as high water cut in Difiial about (93%) and in Difliai about (94%).enPetrophysical EvaluationOil Fields —Diffra west Area, Muglad Basin, SudanThesis