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Well log correlation across sands 

Well log correlation across sands 

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Article
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Nine different wells were carefully studied on "PAU" field and their results were integrated for thorough understanding of the reservoir sand bodies within the field. These studies include; stratigraphic well correlation, rock physics analysis, sequence stratigraphy, petrophysical evaluation of wells and reservoir volumetric evaluation in order to...

Context in source publication

Context 1
... eight (8) well clusters was geologically interpreted as having closely related properties, features and characteristics different from well 1 and as such, a cross section was drawn across the basemap to select visible wells on the map which was used for sand to sand correlation and reservoir correlation (Fig 3). ...

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In this study, we present an integrated approach in characterizing the structural framework, identify and evaluate the petrophysical properties as well as the hydrocarbon in place of potential reservoirs of the “BARIS Field”, Niger Delta. The integration of 3D seismic and well log data has proven for decades to be an effective technique for evaluation of reservoirs’ hydrocarbon delivery potential and it has been applied in the “BARIS Field” onshore Niger Delta Basin in Nigeria using wireline logs of four wells (BARIS_2, 3, 5 and 6) and 3D seismic data of the field. The results of this investigation revealed that reservoirs zones B2 and B5 consist of good quality reservoirs; porosity ranging from 21 to 22%, permeability ranging from 235 to 523mD and water saturation ranging from 16 to 28%. Seismic interpretation revealed the presence of six listric faults; two major faults (1 and 2 trending in the northwest – southeast direction) and four minor faults (3, 4, 5 and 6). Faults 3, 4 and 5 trends in the same direction as the major faults, while, fault 6 trends in the northeast – southwest direction. The two horizons identified, correspond to the reservoir tops (B2_top and B5_top) and revealed the presence of roll-over anticlinal structures between the two major listric faults, and all the four wells targeted this structure. This study has proven to be effective for understanding of the structural complexity of the field as well as the petrophysical properties, and production behavior of the reservoirs.