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    The study on the quality of the crude oil of the Muanda field and its consequences on the installations, was carried out within the framework of our scientific research of study of Advanced Diploma (DEA). The objective of this study was to determine upstream the physical properties and composition of the Muanda field crude oil, in order to determine the conditions of asphaltene deposits in the tubing and other installations. To achieve this, the samples collected in the field were analysed in our laboratories and at the PVT Laboratory of Sonangol in Luanda to constitute the results of this manuscript. The results of these analyses show that the crude oil of the Muanda field is a Medium Crude Oil (29.7┬░API) on the API density scale with the hypothesis of two sources: one of Light Oil, the other of Medium Oil). These two sources of crude oil, induce the establishment of two oils of different viscosities and pour points of which one more viscous (Mu 23) and the other less viscous (Mu 16 and Mu 2) having the average pour point at 15┬░ C (60┬░F). The Standing correlation gave acceptable results and close to those of the Electromagnetic Viscometer (EMV). The chemical composition showed that the crude oil is composed of 18.63% of gas and 81.37 % of Paraffins and Asphaltenes, and that this oil is of low sulfur content type (Low Sulfur Content (LSC) <0.6% weight). A solid sample collected from the oil field was characterized through melting, further heating and solidification point (28┬░ C)

    Reanalysis and Re-evaluation of Geochemical Data of Central Basin of Republic Democratic of Congo

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    In order to revalue hydrocarbons in the central Basin, the present study milked on the reinterpretation and the r├ęanalyse of thegeochemical data of the central Basin. It extracts these data of the well from Samba and Dekese, by their carrots preserved at themuseum royal of central Africa about the Fifties. It r├ęanalyse and reinterprets their respective bed rocks to come out from it thequality of hydrocarbon by pyrolysis rock'n'roll-eval. The first interpretation of these data was already made in 2012 but used onlythree diagrams of first generation of rock'n'roll-eval VI. This work as for him uses ten various diagrams lately set up of pyrolysisrock'n'roll-eval VI in order to criticize the first interpretations emphasized from it the true oil interest of these two localities withmore succeeded details.Software such as OasisMontaj, ArcGIS and Excel made it possible to recreate the ten diagrams to incorporate the data ofrock'n'roll-eval VI in it, in order to draw a more faithful interpretation from it. This exercise will thus make it possible to have aprecision on the locality having mature organic matter in order to consider work more detailed in the central Basin