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. Delta construction proceeded in discrete minibasins ranging in tectonic configuration from extensional, through translational to compressional toethrust regions. Semantic scholar extracted view of petroleum geology of the niger delta by harry doust. In most other oil provinces, there is a noticeable skewness in the distribution of field sizes, e. Upon assuming office in 2007, nigerias former president umaru yaradua initiated an amnesty programme for repentant militants in the niger delta region to provide them with stipends and. Niger delta geographical region, africa britannica. Department of physics, university of port harcourt, nigeria. Niger delta province, nigeria, cameroon, and equatorial guinea, africa. Petrophysical evaluation of uzek well using well log and. Niger delta niger delta facts history of niger delta.
This basin is very complex, and it carries high economic value as it contains a very. Abam institute of geosciences and space technology, rivers stale university of science and technology, pmb 5080, port harcourt, nigeria email. The second included the growth of a proto niger delta during the late cretaceous and ended in a major paleocene marine transgression. The coastal sedimentary basin of nigeria has been the scene of three depositional cycles. In 1965, the delta 1 well was completed and the delta field opened in 1968 for production.
It is situated between latitudes 3 and 6 n and longitudes 5 and 8. 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. For decades oil spills have been damaging the environment and devastating lives in this part of nigeria. The coastal sedimentary basin of nigeria lias been the scene of three deposilional cycles. Multinational corporations and environmental degradation in the niger delta region of nigeria although the bulk of crude oil which is nigeria s main source of revenue is derived from the niger delta region of the country, this region belongs to the rank of the most backward and politically marginalized in nigeria. Pdf the niger delta, an area of roughly 30000km 2, is. The researcher found that the bulk of the hydrocarbon encountered in the niger delta basin was found to be within a depth range of 5,473,381 ft 1,668. 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. An overview of the geology and hydrogeology of nigeria. Tamunoene kingdom simeon abam at rivers state university of science and.
Environmental impacts of oil exploration and exploitation. 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. In the early paleocene, a major marine transgression across most of southern nigeria led to the deposition of marine shales that formed the prodelta on which the. Assessment of structurallycontrolled shallow offshore teldomi reservoirs, niger delta, nigeria inferences from 3d seismic and wireline log data. Petroleum geology of the niger delta semantic scholar. The niger delta is located in southern nigeria in west africa. This research aims to investigate the causes and impacts of oil spill in the niger delta region of nigeria and to identify the suitable management systems for the control of oil spillage so as to reduce oil spills in the niger delta region of nigeria 1. Formation evaluation of an onshore oil field, niger delta. Department of physics,michael okparauniversity of agriculture umudike, nigeria.
The devastating effects of environmental degradation a case. Tertiary niger delta akataagbada petroleum system no. Structural and seismic facies interpretation of fabi field, onshore niger delta, nigeria. For the purposes of this project, the niger delta is defined as the area of the four coastal oil producing niger delta states. This study is aimed at making available petrophysical data, basically water saturation calculation using cementation values of 2. Oil exploration and exploitation has been ongoing for several decades in the niger delta.
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. Pdf evaluation of reservoirs petrophysical parameters. The area is characterized by a mosaic of floodplain deposits and. Sequence stratigraphy of the niger delta, delta field, offshore nigeria. Oil exploration, security challenges, niger delta, environmental problems, and oil spillages. Odeyemi intermediate rocks from older granite complexes. Nigerian mining and geosciences society nmgs printed in nigeria. In contrast, the distribution of field sizes in the niger delta is uniform. Niger delta depositional patterns are complicated by structural. It has had disastrous impacts on the environment in the region and has adversely. 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 formation evaluation of an onshore oil field has been carried out.
The niger delta is a wavedominated delta located on the continental margin of the gulf of guinea that formed in the paleogene. The onshore portion of the niger delta province is delineated by the geology of southern nigeria and southwestern cameroon. Geography geology, relief, drainage and ecological zones climate the people. Estimation of reservoir potentials of two wells in niger. The depositional environments, and corresponding sedimentary facies, are distributed concentrically within the deltaic region. Resistivity, sonic, caliper and density were used to.
This is located within the niger delta basin and sits in 12 feet of water. Oil exploration and security challenges in the nigerdelta. The subsurface geology of delta state which is part of the niger delta basin is depicted in figure 1. Niger delta is the youngest sedimentary basin within the benue trough system. Pdf an overview of the geology and hydrogeology of. Environmental impacts of oil exploration and exploitation in the niger delta of nigeria.
Regional psdm seismic line ng24500 across the main provinces of the niger delta. Clays from the recent delta have similar mineralogical compositions. The delta field is located offshore from nigeria on oil mining leases oml 49 and 95. Pdf engineering geology of the niger delta researchgate. Militancy in niger delta nigeria is resulted from the consciousness of exploitation being perpetrated by the nigerian state against the indigenous people, and the struggle to change the status quo. Assessing wetland services in the niger delta, nigeria. The study area is located within the niger delta, nigeria.
Ladi jadesimi is a chartered accountant, with over 15 years of practice and took. Stratigraphy and sedimentology of the niger delta in. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. An estimate of oil window in nigeria niger delta basin. Violence link in the niger delta abstract this paper studies the oil. The study area is located onshore of the niger delta nigeria, it covers an area of 40,000 km2. The niger delta 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.
Republic of nigeria niger delta social and conflict analysis. Petroleum geology of the niger delta geological society, london. Nigeria, in addition to being the worlds most populated african country, is also the largest producer of oil and gas in africa. Its development began after the eocene tectonic phase. Pdf the niger delta, an area of roughly 30000km 2, is experiencing. The hydrocarbon reservoirs in this study were found to be in the agbada formation, which is in conformity with the geology of the niger delta, nigeria. Nigerias niger delta is endowed with vast reserves of oil and natural gas. The third cycle, from eocene to recent, marked the continuous growth of the main niger delta. It is typically considered to be located within nine coastal southern nigerian states, which include. 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. The niger delta is one of the worlds 10 most important wetland and coastal marine ecosystems and is home to some 31 million people. Nov, 2015 the niger delta province petroleum system 1. The basin is deformed by large synsedimentaty faults, roll. Stratigraphy and sedimentology of the niger delta geologos.
Abstract the study of geotechnical index properties of soils in warri, delta state was carried out to determine. Reservoir description and characterization of eni field offshore niger delta, southern nigeria. Little work has been done in this section to ascertain its geology. The majority of the people in the delta live on the.
The niger delta is africas most important oilproducing region, and one of the most polluted places on earth. The niger delta underlies an area of about 256,000 km 2, and was initially built over an older transgressive paleocene prodelta. A suite of geophysical open hole logs namely gamma ray. Geology department ahmadu bello university zaria, nigeria e. Despite these resources, the region is marked by deprivation and underdevelopment. Petrophysical analysis was performed in two wells in the niger delta region, nigeria. Oil exploration and poverty in the niger delta region of. Mineralogical studies of tertiary subsurface sediments in the niger delta have shown that smectite, kaolinite, mixed. 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.
Clay minerals in recent sediments of the niger delta 223 diffraction patterns, one obtained from a sample deposited in shallow water near the shore and the other from a sample derived from a much deper part of the delta, about 60 miles from the shore, also shows how the peakarea percentage is obtained. There are considerable groundwater and surface water resources available in nigeria. Nigeria is the largest oil producer in africa and the eleventh largest producer of crude oil in the world. Petroleum geology of the niger delta is described in evamy et al. The niger delta is the delta of the niger river sitting directly on the gulf of guinea on the atlantic ocean in nigeria. The northeastern boundary is defined by outcrops of the cretaceous on the abakaliki high and. The oil producing states in nigeria all in the niger delta account for 90% of oil revenues yet they receive only 19% of the statutory revenues from the federal government derived form petroleum sales. The geology of niger delta the tertiary niger delta basin located in southern nigeria at the inland margin of the gulf of guinea is situated at the southernmost extremity of the elongated intracontinental benue trough. Niger delta petroleum systems, nigeria request pdf. Reservoir description and characterization of eni field.
Analysis of communitydriven development in nigeria s niger delta region iii mwangi s. Niger delta akataagbada petroleum system of9950h, chapter a. It is one of the largest regressive deltas in the world with an area onshore and offshore of 300,000 km 2 kulke, 1995. 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. The ecological crisis in the delta is coupled with a deepening politicaleconomic crisis. Late miocene to early pliocene palynostratigraphy and. 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. Niger delta by 1 while 3 reported a geothermal gradient range of 1. Niger delta nigeria s former chief of army staff, gen. Phd dissertation sustainable environmental management. 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.
Deltaic sedimentary environments in the niger delta, nigeria. Pdf assessment of hydrocarbon potential in owem field in niger. The northern boundary is the benin flank an eastnortheast trending hinge line south of the west africa basement massif. Health risks associated with oil pollution in the niger delta. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i. The extensional domain, inner fold and thrust belt and the outer fold and thrust belt are all shown. Structural interpretation of seismic data from an xy field. Maps showing the geological setting of the niger delta in a section 8.
Nigerias niger delta is characterized by high biological 46,420 diversity, abundant natural resources, and extreme poverty. Reservoir characterization in o field in the niger delta. Kimenyi is a senior fellow and director of the africa growth initiative agi at the brookings institution. The geology of nigeria, as detailed in kogbe, is made up of three main rock.
Structural and seismic facies interpretation of fabi field, onshore niger delta, nigeria kehinde oluwatoyin olowoyo dissertation. Jacobbergerh accepted 28 january 1986 remote sensing and field mapping formed the basis for a morphological study of the upper inland niger delta, centered on the region surrounding jenne and mopti, mali. Major causes of militancy in niger delta research cyber. 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. Phd dissertation sustainable environmental management in the niger delta region of nigeria. The paradox of underdevelopment in a resourcerich region has played a role in increasing violence and instability in the niger delta, particularly since the late 1990s. The niger delta province nigeria cristiano ascolani, philipp mesters, jeanmarc soldner petroleum geology i ss 2014 fig. Rationale for a human development approach to the niger delta.
Analysis of oil samples from the niger delta nigeria revealed a range of structurally related hopanes, including 25norhopanes, and hopanoic and 25norhopanoic acids. Jul 30, 2007 the size and distribution of niger delta fields is remarkable. Stratigraphy and sedimentology of the niger delta 7 during the middlelate eocene, sediment was deposited fig. Abstract in the niger delta province, we have identified one petroleum systemthe tertiary niger delta akataagbada petroleum system. The coastal sedimentary basin of nigeria has been the scene of. Pdf an overview of the geology and hydrogeology of nigeria. 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. Within the delta the river breaks up into an read more. Introduction akwa ibom state is one of the thirtysix states that makeup nigeria and one of the nine oil and gas producing states of the niger delta region in.
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