3d Seismic Structural Interpretation of a Part of Aloo-Field, Southwestern Niger Delta, Nigeria

Ologe, Oluwatoyin

doi:10.9790/0990-0112935

Cited by 3 publications

(2 citation statements)

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“…The analysis revealed three major faults (F1, F2 and F3) on the seismic section. These faults are structure building faults corresponding to the growth fault in the study area (Oluwatoyin, 2013). The faults are oriented in the westeast direction, with most of them dipping east ward.…”

Section: Resultsmentioning

confidence: 99%

Reservoir evaluation of sand beds in sapele field, onshore niger delta

Emudianughe¹,

Ekechikwe²

2022

Glo Jnl Geo Sci

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The Sand beds of the Sapele field have been evaluated to ascertain the viability of the field for hydrocarbon development using integration of the structural play and petrophysical indices. Pay sands were delineated using the quick look approach. A seismic horizon of interest was picked using a well control measure. The structural play reveal three major faults responsible for hydrocarbon migration and entrapment mechanisms which contributed to a three-way closure in the area. Litho-stratigraphic correlation revealed repetitive gamma-ray signatures across the wells, an indication of active fault zone, and this defines the complexity of the Sapele field. The gamma-ray signatures infer a clastic marine settings when compare with standard log motifs. Petrophysical results reveal very good pore volumes of over 20% with 0ver 15% effective and an excellent degree to transmit fluid (over 1000mD). The high hydrocarbon saturation of over 70% infer good producibility of the field. The results has extensively showed the viability of the Sapele field for good field development.

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Section: Resultsmentioning

confidence: 99%

Reservoir evaluation of sand beds in sapele field, onshore niger delta

Emudianughe¹,

Ekechikwe²

2022

Glo Jnl Geo Sci

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“…The reservoir's quality in the Z-field Niger Delta ranged from moderate to good and were excellent in some distal reservoirs. Ologe et al (2013) used 3D seismic data to determine the subsurface structural features and retentive capacity of the reservoir for hydrocarbon in part of Aloo-field, Southwestern Niger-Delta, Nigeria. Three noticeable horizons were mapped in Aloo-field.…”

Section: Introductionmentioning

confidence: 99%

Reservoir characterization and by-passed pay analysis of philus field in Niger delta, Nigeria

Ayobami

Adedapo

Adagunodo

et al. 2016

IJAG

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Hydrocarbon resources have become the most essential commodity contributing to any nation's growth and development in the recent years. For the past decades now, the quest for hydrocarbon resources has been increasing in an arithmetic rate that its supply can no longer meets the demand for its consumption today. In petroleum industry, seismic and well log analyses play a vital role in oil and gas exploration and formation evaluation. This study is aimed to effectively characterize the reservoirs and analyze the by-passed pay in Philus Field, Niger-Delta, Nigeria in order to look into the economic viability and profitability of the volume of oil in the identified reservoir(s). The faults in the study area trend in NW-SE direction and dip towards the south. Seven reservoirs were mapped on Philus field. A discovery trap and a by-passed (new prospect) trap were mapped out on the field. The petrophysical analysis showed that porosity of Philus field was 0.24. The volumetric analysis showed that the Stock Tank Original Oil in Place of discovery trap (Philus field) ranged from 1.6 to 43.1 Mbbl while that of new prospect trap ranged from 18.1 to 211.3 Mbbl. It is recommended that the oil reserve of Philus field needs to be recalculated.

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Coblending of seismic attributes for interpretation of channel geometries in Rence Field of Niger Delta, Nigeria

et al. 2015

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Coblending of seismic attributes is used in the interpretation of channel geometries in the Rence Field of Niger Delta, Nigeria. We aimed at seismically defining the geometries of hydrocarbon reservoirs with particular emphasis on channels in the shallow marine (offshore) Niger Delta. The coblending application enhanced the ease of detection and the continuity of the channels, leaving the channel environs unchanged. The result of the seismic facies analysis revealed that the Rence Field can be distinguished into two seismic facies, namely, layered complexes and chaotic complexes. The result of well to seismic ties revealed high- and low-amplitude reflection events for sand and shale units, respectively. Seismic structural interpretation of the Rence Field revealed 4 major regional faults and 12 minor faults. Seven of the faults were antithetic, and the rest were synthetic faults. One mega-channel feature that trends east–west was identified in the attribute maps generated. It was characterized by sinuosity of 1.3, with a length of 22,500 m, and a distance of 17,500 m. The average depth of the channel was approximately 170 m with amplitude of 1670 m and the wavelength as high as 7640 m. A depositional model generated from the attribute maps indicated a prograding fluvial environment of deposition. The attribute map also determined that there was shifting in the location of barrier bars within the area. This shifting could be attributed to the growth fault mechanism. At the stoss side of the sinusoidal channel, there were prominent sand point bar sequences. The petrophysical analysis of the well data revealed 90% net-to-gross, 28% porosity, 27% volume of shale, and 24% water saturation indicating that the reservoir was of pay quality. Based on the petrophysical analysis, results, and identification of channel deposits, the study area proved highly promising for hydrocarbon exploration.

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3d Seismic Structural Interpretation of a Part of Aloo-Field, Southwestern Niger Delta, Nigeria

Cited by 3 publications

References 0 publications

Reservoir evaluation of sand beds in sapele field, onshore niger delta

Reservoir evaluation of sand beds in sapele field, onshore niger delta

Reservoir characterization and by-passed pay analysis of philus field in Niger delta, Nigeria

Coblending of seismic attributes for interpretation of channel geometries in Rence Field of Niger Delta, Nigeria

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