Well Log Petrophysical Analysis and Fluid Characterization of Reservoirs, Rio Del Rey Basin, Cameroon (West African Margin, Gulf of Guinea)

Joseph Bertrand Iboum Kissaaka, Ahmed Salim Mopa Moulaye, Paul Gustave Fowe Kwetche, Francois Mvondo Owono and Marie Joseph Ntamak-Nida

Earth Science Research, 2021, vol. 10, issue 1, 1

Abstract: The quick-look and gas chromatography analyses were used for formation evaluation of four depth intervals in a well (well A) located within the offshore of the Rio Del Rey basin. The results show 3 water reservoirs (R1 to R3) and 1 hydrocarbon reservoir (R4). The quick-look reveals that the hydrocarbon (oil and gas) reservoir is a shaley sandstone or a radioactive sandstone located between 4898-4932 Mmd which is filled by oil and gas and with a good porosity. The chromatographic gas ratio analysis reveals that the hydrocarbon reservoir is filled by a productive gas which may be a wet gas. The result provided by the gas chromatography is a false result probably due to its limitation which is that the hydrocarbon component must exist at the gaseous phase (C1-C5) to be detected and analyzed. The gas chromatography based its analysis only in the C1 to C5 range, in oil we have from C1 to C8.

Date: 2021
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