Mar, 2015 detailed studies on depositional sequence, genetic facies, and depositional environment were done using sequence stratigraphic tool in the paralic sequence of middle to late miocene age in the coastal swamp depobelt of the niger delta basin. It shares boundaries with the republics of benin and niger in the west, cameroon in the east, niger. The niger delta is one of the worlds largest tertiary delta systems and an extremely. Introduction the niger delta is ranked among the worlds major hydrocarbon provinces in the world. The niger delta petroleum system usgs publications repository.
This was aimed at increasing the resolution for prediction of reservoir, seal, and source rocks in the eastern part of the basin. Sequence stratigraphy and depositional environments of middle. Abstract in the niger delta province, we have identified one petroleum systemthe tertiary niger delta. S1 abstract the niger delta, an area of roughly 30,000km2, is experiencing physical development challenges due to poor soil conditions, a. Nov 21, 2017 the niger delta basin has area coverage of about 75,000 km 2 and consists of an overall regressive clastic sequence which reaches a maximum thickness of about 12,000 m in the central part of the basin where there is maximum subsidence merki 1972. Petroleum geology of the niger delta is described in evamy et al. Niger delta petroleum systems, nigeria petroleum systems of. An estimate of oil window in nigeria niger delta basin. As a step towards understanding this geohistory, this study examines the stratigraphy and sedimentary structures of the umunya section of the eocene nanka formation, a component of the ameki group of the niger delta basin. Niger delta gravitydriven deformation above the relict. The niger delta basin lithic fill is considered to be selfcontained in terms of its structural geology, since the ns and nwse trends of the underlying basement have not controlled the arcuate, shorelineparallel depobelt configuration dominating the delta. An estimate of oil window in nigeria niger delta basin from. Pdf determination of geomechanical properties of a. Linkpage citation nigeria is on the west coast of africa, on latitudes 4degrees north of the equator and latitudes 3degrees and 14degrees on the east of the greenwich meridian.
Geological section through the sedimentary layers of the niger delta. A new threefold lithostratigraphic subdivision is introduced for the niger delta subsurface, comprising an upper sandy benin formation, an intervening unit of alternating sandstone and shale named the agbada formation, and a lower shaly akata formation. Niger delta petroleum systems, nigeria request pdf. Odeyemi intermediate rocks from older granite complexes. Evaluation of hydrocarbon prospect of amu field, niger. Formation evaluation of an onshore oil field, niger delta. Tertiary niger delta akataagbada petroleum system no. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. The niger delta is the delta of the niger river sitting directly on the gulf of guinea on the atlantic ocean in nigeria. In this work, we determined the geomechanical properties of a typical hydrocarbon well within the niger delta basin using geophysical well logs. A recently computed fit of the african and south american continents is astonishingly close, apart from an overlap of some 120 miles in the vicinity of the niger delta.
The niger delta is a classic example of a passive margin delta that has gravitationally deformed above an overpressured shale decollement. Assessment of undiscovered petroleum in the tertiary niger delta. Braid delta sediments from the tertiary of the apsheron peninsula, azerbaijan, have been described by reynolds et al. Kurowska university of silesia department of fundamental geology sosnowiec poland abstract niger delta sedimentary basin is a large arcuate delta of the destructive dominated wave type that has been explored for oil and gas and exploited since 1958. Abstract the study of geotechnical index properties of soils in warri, delta state was carried out to determine. Integrated reservoir quality study of deepwater clastic. The influx of people into the niger delta air pollution and health waste management and health impacts on culture, traditions and authority structures the history of environmental management in the niger delta conclusion chapter four. The influx of people into the niger delta air pollution and health waste management and health impacts on culture, traditions and authority structures the history of environmental management in the niger delta. Pdf determination of geomechanical properties of a typical. Abstract in the niger delta province, we have identified one petroleum systemthe tertiary niger delta akataagbada petroleum system. The akata formation represents the prodelta facies of a southwardprograding tertiary delta. Nwajide introduction the niger delta basin occupies the gulf of guinea continental margin in equatorial west africa, between lats. Figure 2 is a 275 km, prestack depth migrated and interpreted seismic line across the offshore niger delta. Pdf an overview of the geology and hydrogeology of nigeria.
Petroleum geology of the niger delta abstract the niger delta is a large, arcuate delta of the destructive, wavedominated type. Regional integration of results from conventional exploration geochemistry, structural analysis, and gravitymagnetic data provide a comprehensive new understanding of niger delta petroleum systems. Psintegrated reservoir quality study of deepwater clastic deposits, offshore western niger delta, nigeria c. Its development began after the eocene tectonic phase. Geomechanical properties we estimated using acoustic velocities derived from interval transit time which. Sequence stratigraphy and depositional environments of. Petroleum geology of the niger delta geological society, london. This paper attempts to determine whether there is a genuine misfit at this point or whether the delta. The analysis was based on a combination of data sets including logs of six wells to describe lithic variations of the agbada formation within the ab field. Niger delta is the youngest sedimentary basin within the benue trough system. Niger delta petroleum systems, nigeria petroleum systems. Abstract the study of geotechnical index properties of soils in warri, delta.
A braid delta is a coarsegrained delta fed by a braided river. Kurowska university of silesia department of fundamental geology sosnowiec poland abstract niger delta sedimentary basin is a large arcuate delta. Engineering geology of the niger delta 67 sediments originating from the vast catchment area and geologic ally com plex hinterland fig. In contrast, the distribution of field sizes in the niger delta is uniform. Delta field, niger delta, integration, stratigraphic mapping, structural interpretation, well logs. Regional psdm seismic line ng24500 across the main provinces of the niger delta. Niger delta geographical region, africa britannica. During the cenozoic, until the middle miocene, the niger delta grew through pulses of sedimentation over an oceanwarddipping continental. The niger delta is a vast lowlying region through which the waters of. Paleoenviromental and sequence stratigraphic studies of the d7. This basin is very complex, and it carries high economic value as it contains a very.
Analysis of communitydriven development in nigerias niger delta region iii mwangi s. S1 abstract the niger delta, an area of roughly 30,000km2, is experiencing physical development challenges due to poor soil conditions, a situation which has escalated project cost and as a consequence impeded development. It is typically considered to be located within nine coastal southern nigerian. Georger joined the petrolin group switzerland in 1995 and is responsible for all crude oil trading activities, including the. Niger delta akataagbada petroleum system of9950h, chapter a.
Geology of the niger delta the niger delta is an oil province of nigeria located on the west african continental margin. Reservoir characterization in o field in the niger delta. Professor pete burgess professor in sedimentary geology duration. Delta utue ologbo yorla mina ebisan os soku awodi ruta bonga sw bonga nw kaka keh hi hj s akarino okpa hobobo jk ab on rth ofrima kuro egbeleke epiya bolia rob i sonam. Reservoir description and characterization of eni field offshore niger delta, southern nigeria.
Nigeria is the 12th largest producer of crude oil in the world. Reservoir description and characterization of eni field. The structure of the offshore niger delta tional accommodation on the slope in the inner fold and thrust belt, as well as distal contraction in the outer fold and thrust belt. Summary of the geology of the study area the studied area is located in parts of the onshore zone in the niger delta sedimentary basin, nigeria fig. Map of niger delta showing the study area features. There, as well as in the onshore part of the delta, the traditional lithostratigraphic subdivision of the cenozoic niger delta section. It is bounded to the west and northwest by the western african shield, which termi. The modern niger delta exemplifies a type of delta in which sand as well as mud is supplied to a receiving water body of high energy.
Geology department ahmadu bello university zaria, nigeria e. The niger delta is a major hydrocarbon producing basin in nigeria where intensive exploration and exploitation activities. The province covers 300,000 km2 and includes the geologic extent of the tertiary niger delta akataagbada petroleum system. Integrated reservoir quality study of deepwater clastic deposits, offshore western niger delta, nigeria c. Detailed studies on depositional sequence, genetic facies, and depositional environment were done using sequence stratigraphic tool in the paralic sequence of middle to late miocene age in the coastal swamp depobelt of the niger delta. It is typically considered to be located within nine coastal southern nigerian states, which include. The niger delta basin lithic fill is considered to be selfcontained in terms of its structural geology, since the ns and nwse trends of the underlying basement have not controlled the arcuate, shorelineparallel depobelt configuration dominating the delta tectonics.
Jul 30, 2007 the size and distribution of niger delta fields is remarkable. The study area is located onshore of the niger delta nigeria, it covers an area of 40,000 km2. Geology and mineral resources of the lower benue trough. The geology, stratigraphy, petroleum geology and structure of the niger delta basin have been extensively discussed in several key publications 12,14,23,26,28 31. As a step towards understanding this geohistory, this study examines the stratigraphy and sedimentary structures of the umunya section of the eocene nanka formation, a component of the ameki group of the niger delta. Within the delta the river breaks up into an in nigeria. Stratigraphy and sedimentology of the niger delta geologos. Regional integration of results from conventional exploration geochemistry, structural analysis, and gravitymagnetic data provide a comprehensive new understanding of niger delta. Geology and mineral resources of the lower benue trough, nigeria. The niger delta basin, also referred to as the niger delta province, is an extensional rift basin located in the niger delta and the gulf of guinea on the passive continental margin near the western coast of nigeria with suspected or proven access to cameroon, equatorial guinea and sao tome and principe.
The structure of the offshore niger delta geology department. Short and stauble 1967 outlined the general geology of the niger delta. The delta was formed as a major continental embankment. In most other oil provinces, there is a noticeable skewness in the distribution of field sizes, e. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i. They have studied the origin of the niger delta basin, and established that the tertiary deltaic fill of the niger delta is. This paper attempts to determine whether there is a genuine misfit at this point or whether the delta may have grown beyond the continental margin after the continents separated. The niger delta region in the light of the theory of. Foraminifera biostratigraphy and paleoenvironment of well. The aim of this study is to integrate 3d seismic and well log data for the characterization and volumetric analysis of the amu field, niger delta. Agbada formation, which is an alternating sequence of. Petrophysical evaluation of reservoir sand bodies, onshore field, eastern niger delta, nigeria okumokod.
Paleoenviromental and sequence stratigraphic studies. Summary of the geology of the study area the amu field is located within the greater ughelli depobelt of the niger delta. Midlower miocene agbada sedimentary intercalations of ab field in the coastal swamp depobelt, western nigerdelta, were evaluated to determine their sequence stratigraphic character. Kimenyi is a senior fellow and director of the africa growth initiative agi at the brookings institution. The niger delta basin, also referred to as the niger delta province, is an extensional rift basin located in the niger delta and the gulf of guinea on the passive continental margin near the. Pd 41 petroleum geology of the niger delta onepetro. The niger delta, which stretches for nearly 150 miles 240 km from north to south and spreads along the coast for about 200 miles 320 km, extends over an area of 14,000 square miles 36,000 square km. The niger delta is the cenozoic gross offlap clastic succession built out on top of the anambra basin. Stratigraphy and sedimentology of the niger delta 7 during the middlelate eocene, sediment was deposited fig. Foraminifera biostratigraphy and paleoenvironment of well 5. The niger delta basin lies between latitude 40000n and 60000n and longitude 50000e and 80000e. Structural and stratigraphic mapping of delta field. An overview of the geology and hydrogeology of nigeria.
Delta utue ologbo yorla mina ebisan os soku awodi ruta bonga sw bonga nw kaka keh hi hj s akarino okpa hobobo jk ab on rth ofrima kuro egbeleke epiya bolia rob i sonam azama erukuku chioma madu oma shokoloko asanga okpok npete egina ewo engule og ed h akpo ton r h al bilabri adaka ejigebede gba du ikija aparo opl 249 doro matu chota anyala. Stratigraphy and sedimentology of the niger delta in. The basin is deformed by large synsedimentaty faults, roll. Geotechnical attributes of niger delta soils, warri environs, nigeria oghonyon rorome1, adeniran adedoyin a2 3and opaimi iniala 1,2,3department of geology, university of port harcourt, port harcourt, nigeria. Exploration the deepwater niger delta ion geophysical.
The third cycle, from eocene to recent, marked the continuous growth of the main niger delta. Maps showing the geological setting of the niger delta in a section 8. The southern nigeria sedimentary basin includes the lagososse and the niger delta. Geology and mineral resources of the lower benue trough, nigeria 1fatoye f. Apart from middle east, which has a long historiography of interminable crises, the niger delta region, ndr, is the most studied region of the world.
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