Masters theses:Petroleum
Permanent URI for this collectionhttps://repository.neelain.edu.sd/handle/123456789/4963
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Item Petrophysical Evaluation and Reservoir Summation of Bentiu Formation ـــ Hamra East oil Field, Muglad Basin, Sudan(Al-Neelain University, 2018-12) Amar Adam Ali IbrahimThe Muglad Basin is known as one of the largest rift basins in North Africa, and comprises an important oil field producing areas in the Sudan. The basin is located in the southwestern part of the Sudan, bounded by the longitudes 27° 00´ and 30° 00 E and the latitudes 6° 00´ and 12° 00´ N. The present research work integrates an extensive petrophysical evaluation using interactive Petrophysics (IP) and manual interpretation for four wells within the Cretaceous – Albian age of Bentiu Formation in Hamra East oil field, Block 2B in Muglad basin. The work was carried out in order to identify petrophysical parameters and reservoir characteristics of the Cretaceous oil-bearing sandstone reservoirs in Bentiu Formation which is the main reservoir in the study area. The Data used to carry out this study include: wire-line logs (LAS format), base maps, master log and final well reports, for all wells. The zones of interest range between 1698 m-1900 m depending on the position of the wells and the correlation that were made to be known as the top and bottom of the formation for each well. The results showed that the manual interpretation results are compatible with those obtained from the IP. The petrophysical parameters achieved after calculations in Bentiu Formation, range as follows: the average of effective porosity (23% - 25%), clay volume (17-19 %), water saturation (77 - 85.3%), and hydrocarbon saturation (net pay), (2.14 -21.03) m. The results also reveal that the average volumes of shale decrease from the southeastern part of the field towards the northwestern; while the average porosities and water saturations increase from the Northwestern through the southeastern part of the study area.