Nigeria is underlain by seven major sedimenta ry basins, viz. Most of the boreholes in the northern parts of the niger delta tap unconf ined aquifers. In the shallowcontinental sections in the niger delta, geothermal gradients vary between 10. This thesis follows the style and format of the aapg bulletin. Niger delta petroleum systems, nigeria, by richard c. Tertiary niger delta akataagbada petroleum system no. Abstract the study of geotechnical index properties of soils in warri, delta state was carried out to determine. Outcropping units of the niger delta include the imo formation and the ameki group. 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. Pdf an overview of the geology and hydrogeology of nigeria.
The onshore portion of the niger delta province is delineated by the geology of southern nigeria and southwestern cameroon, the northern boundary of niger delta is the benin flank and east northwest trending hinge line south of the west africa basement massif. 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 most important aquifers in the niger delta are the deltaic and benin formations. This system is referred to here as the tertiary niger delta akata agbada petroleum system. During the cenozoic, until the middle miocene, the niger delta grew through pulses of sedimentation over an oceanwarddipping continental basement into the gulf of guinea. Map of the offshore niger delta showing the location of regional transects 110 used in this study, bathymetry, and major offshore structural provinces modified from connors et al. It is because of oil and gas that the international community is interested in the niger delta, but for local people, sand, soil and clay, periwinkle shells and salt are no less important. The migmatite gneiss complexes are believed to be the oldest rocks of the nigeria basement complex. Over 10 million scientific documents at your fingertips. Pdf porosity modelling was carried out in two oilwells of stacked reservoirs in the. Delta field, niger delta, integration, stratigraphic mapping, structural interpretation, well logs. Creation of the niger delta development commission 20002003 the niger delta development commission nddc was established in 2000 by president olusegun obasanjo with the sole mandate of developing the petroleumrich nigerdelta region of southern nigeria. Major minerals metallic minerals tin, columbite, tantalite, leadzinc. More than 50 complexes occur in nigeria obaje, 2009.
The niger delta province contains only one identified petroleum system kulke, 1995. Outline of geology of niger delta1 aapg bulletin geoscienceworld. However, a number of mineral resources are mined in the niger delta but oil is the most important. In most other oil provinces, there is a noticeable skewness in the distribution of field sizes, e. The coastal sedimentary basin of nigeria has been the scene of. 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. In contrast, the distribution of field sizes in the niger delta is uniform. In 1965, the delta 1 well was completed and the delta field opened in 1968 for production. Sequence stratigraphy of the niger delta, delta field, offshore nigeria. Umunya section, niger delta basin, nigeria adaeze i. Geological map of part of southern nigeria showing the outcropping area of the. The niger delta started to evolve in early tertiary times when clastic river input increased doust and omatsola, 1989.
Much of the complex is believed to be reworked older crust probably liberian in age which have been further. Within the delta the river breaks up into an read more. 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. The reservoir temperature data from arpr file had already been. The niger delta has a long history of violent conflicts over environmental. Niger delta is the youngest sedimentary basin within the benue trough system. This is located within the niger delta basin and sits in 12 feet of water. Stratigraphy and sedimentology of the niger delta geologos. Pdf analysis of deforestation pattern in the niger delta. Nigerias first national communication under the united nations framework convention on climate change the ministry of environment of the federal republic of nigeria. An overview of the geology and hydrogeology of nigeria. The search for oil in nigeria has led to a great increase in the knowledge of the geology of the.
Review of the basement geology and mineral belts of nigeria. Structural and stratigraphic mapping of delta field, agbada. Deepwater niger delta fold authors and thrust belt modeled. The study area is located within the northern depobelt of the niger delta sedimentary basin fig. Mar 27, 2017 the delicate nature and abundant endowment of the niger delta mangrove swamp and freshwater ecosystem contrasts against the background of wanton pollution and degradation of the freshwater ecosystem in the region by a variety of sources ranging from oil spills, dredging, dumping of toxic wastes, seismic activities and waste water disposal into freshwater bodies in the region. Generally the delta prograded over the subsidizing continentaloceanic lithospheric transition zone, and during the oligocene spread onto oceanic crust of the gulf of guinea adesida et al. The basin structure and stratigraphy have been controlled by the. Anambra basin, benue trough, bida, bornu, niger delta and sokoto basins. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. Stratigraphy and sedimentology of the niger delta in. The future of bitumen in nigeria bitumen depth determines which. The northern boundary is the benin flankan eastnortheast trending hinge line south of the west africa basement massif.
Formation evaluation of an onshore oil field, niger delta. The coastal sedimentary basin of nigeria has been the scene of three depositional cycles. Since the creation of the geological survey of nigeria in 1903, numerous studies have been carried out on various aspects of the geology and mineral resources of nigeria. Sedimentary succes sions in these basins are of middle mesozoic to recent age. Since its inauguration, the nddc has focused on the development of social and. Nov, 2015 6 geological overview the niger delta province petroleum geology i ss 2014 fig. The delta field is located offshore from nigeria on oil mining leases oml 49 and 95. Its development began after the eocene tectonic phase. If significant progress could be made on these fronts, much of the sense of injustice and marginalization on the part of the delta population would be assuaged.
Geology and mineral resources of the lower benue trough, nigeria. Jul 30, 2007 the size and distribution of niger delta fields is remarkable. The second included the growth of a proto niger delta during the late cretaceous and ended in a major paleocene marine transgression. Ladi jadesimi is a chartered accountant, with over 15 years of practice and took. The oil rich niger delta region of nigeria has been embroiled in crisis. Crisis in the niger delta 5 the most pressing development needs are for better roads, water transport, power, and telecommunications. The niger delta fold and thrust belts occupy the outboard toe of the delta in figure 1. Maps showing the geological setting of the niger delta in a section 8. The niger delta has three major depositional prisms. Sedimentary basins the cretaceous to recent basins in nigeria include. Aug 04, 2003 they are mostly of marine origin, as in the niger delta, anambra and chad delta basins. Introduction the niger delta is ranked among the worlds major hydrocarbon provinces in the world. The literature on the niger delta conflicts is extensive, featuring various theoretical. Abstract in the niger delta province, we have identified one petroleum systemthe tertiary niger delta akataagbada petroleum system.
Petrophysical evaluation of reservoir sand bodies, onshore field, eastern niger delta, nigeria okumokod. Niger delta depositional sequence seismic attribute stratigraphic. Geology and mineral resources of the lower benue trough. The nigerdelta forms one of the worlds major hydrocarbon provinces and it is situated on the gulf of guinea on the west coast of africa southern part of nigeria. Niger is bordered by algeria and libya to the north, chad to the east, nigeria and benin to the south, and mali and burkina faso to the west. Structural interpretation of seismic data from an xy field. The development of nigerias bitumen poses two important questions for resource governance 1 is it truly in the best future interests of nigeria to exploit bitumen. Niger delta geographical region, africa britannica. Analysis of deforestation pattern in the niger delta region of nigeria article pdf available in journal of land use science october 2014 with 1,409 reads how we measure reads.
A 2,1,2 department of geology, university of port harcourt, port harcourt, nigeria abstract. 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. This study examined the application of 3d seismic and well log data for proper optimization and development of hydrocarbon potential in oak field of nigerdelta province. The fracture zone ridges subdivide the margin into individual basins, and, in nigeria. The first began with a marine incursion in the middle cretaceous and was terminated by a mild folding phase in santonian time. It is the most important in the west african continental margin. The onshore portion of the niger delta province is delineated by the geology of southern nigeria and southwestern cameroon. The benue trough is one of the seven main sedimentary structural features in the sene nigeria.
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