Predicting soil corrosivity along a pipeline route in the. The delta field is located offshore from nigeria on oil mining leases oml 49 and 95. Sedimentary succes sions in these basins are of middle mesozoic to recent age. Dec 08, 2017 niger delta basin development authority recruitment 2017 how to apply for ndbda recruitment. Sedimentological analysis of core samples from well xy62 located within the greater ughelli depobelt of the niger delta basin was carried out. Nigeria niger delta exploration basin report summary nigerias niger delta is a worldclass petroleum province where over 93 billion barrels of. Depositional facies analysis using core samples from. The depositional environments, and corresponding sedimentary facies, are distributed concentrically within the deltaic region. The fundamental causative event for the origin of the niger delta basin was the breakup of the gondwana supercontinent. Oil and gas fields clickable map usgs nigeria niger delta. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. Environmental impacts of oil exploration and exploitation in the niger delta of nigeria.
Niger delta is limited by the coastline and the farther side of the continental rise, thus comprising the continental shelf, slope and rise off the subaerial delta 7. In this paper, subsurface temperature measured from continuous temperature logs were used to determine the geothermal gradient of nigerdelta sedimentary basin. Niger delta, post a great deal of problems to oil exploration and. The niger delta fold and thrust belts occupy the outboard toe of the delta in figure 1. Niger delta basin is an extensional rift basin located in the niger delta.
Geothermal gradient of niger delta from recent studies. 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. Regional setting of niger delta basin after emery et al. Anambra basin in what became the north ern depobelt of the niger delta figs 1, 3. Jun 19, 2019 nigeria niger delta exploration basin report summary nigerias niger delta is a worldclass petroleum province where over 93 billion barrels of oil and gas have been discovered over the last six decades. Soil corrosion in this case was anticipated in regards to the pipeline which is ex pected to be buried within the top three metres of the soil. The engineers involved in the project considered that the conduit would be trenched. Late miocene to early pliocene palynostratigraphy and.
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. Lithologies of cretaceous rocks deposited in what is now the niger delta basin can only be extrapolated from the exposed cretaceous section in the next basin to the northeastthe anambra basin. The first began with a marine incursion in the middle cretaceous and was terminated by a mild folding phase in santonian time. The niger is the principal river of western africa, featuring diverse environmental and. Depobelt and structural play map of the niger delta basin showing the study area. Nigeria is underlain by seven major sedimenta ry basins, viz. Assessment of undiscovered petroleum in the tertiary niger delta akataagbada petroleum system no. Source, depositional environment and maturity levels of some. Radius where these structures are seen in the niger delta identification of growth faults and rollover anticlines hydrocarbon trapping mechanism of these structures 9 october 2014undergraduate. These formations become progressively younger farther into the basin, recording the longterm progradation of depositional environments of the niger delta onto. The coastal sedimentary basin of nigeria lias been the scene of three deposilional cycles. Schematic showing the location of lobes of the early niger delta, prolific oil centers, and shale prone areas.
It is considered to have been built out covering a. Pdf porosity modelling was carried out in two oilwells of stacked reservoirs in the molog field in southeast niger delta using gamma ray. Here, the nsukka formation is overlain by the imo formation which is the basal unit of the niger delta sedimentary package. In this paper, the thermal state of the niger delta basin is presented. The delta stretches for about 300km from apex to mouth and covers an area of at least 75,000km doust, 1989. The cretaceous section has not been penetrated beneath the niger delta basin, the youngest and southernmost sub basin in the benueabakaliki trough reijers and others, 1997. 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. Rivers state to oben edo state in the niger delta basin, nigeria. Voir architecture and continuity of the tertiary niger delta basin fills is expected to.
Sequence stratigraphic model for the central portion of the niger delta. The basin consists of progradational, paralic sequences of akata, agbada and benin formations which builds southwards into the deep waters and. Sequence stratigraphy and depositional environments of. Virtual soil science learning resources 5,098 views. Southern niger delta basin of nigeria from potential field data eke, peter ogochuku, okeke, francisca nneka abstract. The niger delta basin has built out into the central atlantic at the north of the niger benue and cross. Africa niger river basin management project english abstract. The first began with a marine incursion in the middle cretaceous and. Water quality monitoring at five 5 different gauge stations on the course of njaba river was undertaken to understand the variability of the physicochemical and microbial contents of the river water within a specified period of time 20032008. Sequence stratigraphy and depositional environments of middle. 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. The third cycle, from eocene to recent, marked the continuous growth of the main niger delta. Niger delta petroleum systems, nigeria request pdf.
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. Deepwater niger delta fold authors and thrust belt. Gis based mapping and analysis of oil pollution in niger delta coastal environment. The study area, a1 reservoir sand, boga field, niger delta is located within the greater ughelli depobelt of the niger delta region. The delta was formed as a major continental embankment.
Niger delta by 1 while 3 reported a geothermal gradient range of 1. This was aimed at increasing the resolution for prediction of reservoir, seal, and source rocks in the eastern part of the basin. The study area field o is located onshore of the niger delta nigeria, situated on the gulf of guinea along the west coast of africa fig. The niger delta basin ranks among the worlds most prolific petroleum. Based on remaining reserves, the niger delta is approximately halfway through its life. Swamp depobelt, niger delta basin, southern nigeria. The second included the growth of a proto niger delta during the late cretaceous and ended in a major paleocene marine transgression. Depositional facies analysis using core samples from greater. Reservoirs tend to be small, with hundreds of small deposits throughout the delta. Download the complete project topic and material chapter 15 titled determination of the sedimentological and geochemical characteristics of the sediment in the niger delta basin here on iprojecttopics. A comparative assessment of the physicochemical and. The niger delta is the area where the main river channel of the. The niger delta basin consists of cenozoic formations and covers.
Potential hydrocarbon regions in the southern region of the niger delta basin of nigeria have been identified from gravity and magnetic data. Nigerian association of petroleum explorationists bulletin 10, 6573. Niger delta basin development authority, ndbda, niger delta basin development authority recruitment, niger delta basin development authority recruitment 2017, apply for ongoing ndbda recruitment, how to apply for ndbda recruitment see more details below. Tertiary niger delta akataagbada petroleum system no. Structural and stratigraphic mapping of delta field, agbada. Nigeria produces high quality sweet crude, from the prolific tertiary, agbada formation.
Nwajide introduction the niger delta basin occupies the gulf of guinea continental margin in equatorial west africa, between lats. There are two components to the project, the first component being. The objective of the niger river basin management project for africa is to strengthen the institutional framework for regional cooperation in water resources in the niger river basin. Stratigraphic column showing the three formations of the niger delta. Purchase of an open document does not constitute license for republication in any form, nor does it allow web posting without prior written permission. 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. Stratigraphic section of the anambra basin from the late cretaceous. The basin is characterized by structural and stratigraphic complexities dominated by synsedimentary growth faults. Oil spill problems and management in the niger delta. All intext references underlined in blue are added to the original document. Mar 31, 2019 nigeriasao tome jdz niger delta exploration basin. 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.
Nigeriasao tome jdz niger delta exploration basin report. Stratigraphy and sedimentology of the niger delta in. In the paleocene, a major transgression referred to as the sokoto transgression reijers et al. A braid delta is a coarsegrained delta fed by a braided river. The upper niger river basin headwaters are in the fouta djallon massif, guinea. These have included the niger delta basin development board, established in 1965 and. Subsidence of the african continental margin and cooling of the newly. As a sedimentary basin, the niger delta en compasses a region that is much larger than the geographical extent of the modern delta constructed by the niger benue drainage systems.
Thermal maturity evaluation and prediction of petroleum generation. 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. The niger delta basin also referred to as the niger delta province is located in the gulf of guinea. The benue trough is arbitrarily subdivided into three portions. The delta began to form as sediments that shed from the niger river gradually filled the benue trough during the opening of the equatorial atlantic, and, by the late eocene, the delta had begun to prograde on top of the continental margin. A position of nigeria in africa and niger delta basin. The tertiary succession in the northern niger delta basin includes. The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader if you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs. The oldest formations palaeoceneeocene in the niger delta form an arcuate exposure belt along the delta frame.
Reservoir characterization in o field in the niger delta. Nigeria niger delta exploration basin report wood mackenzie. Diagrammatic representation of the stratigraphic evolution of the niger delta. Map of the niger river basin, showing the four sub basins. Njaba river in the niger delta basin is precisely located within latitudes 5.
Cartoon showing how the coastline of the niger delta has prograded since 35 ma. 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. Sequence stratigraphic approach to hydrocarbon exploration. Physical geography of the niger river basin the niger river is africas third longest river 4,200 kilometers and encompasses six hydrographic regions, each of which is distinguished by unique topographic and drainage characteristics. A number of special agencies have been created by the federal government to address development in the niger delta. Africa niger river basin management project english the. The niger river and its tributaries are a key source of water for the estimated 100 million people living in the basin, especially for the. The niger delta clastic wedge formed along a failed arm of a triple junction system aulacogen that originally developed during break up of the south american and african plates in the late jurassic burke et al. Geothermal gradient of the niger delta from recent studies.
Reservoir description and characterization of eni field. It has had disastrous impacts on the environment in the region and has adversely. Request permission export citation add to favorites track citation. The enhanced residual data obtained from least square analysis method was interpreted by inverse and forward modeling techniques using potent3d. This basin is very complex, and it carries high economic value as it contains a very. The delta grossly consists of three subsurface lithostratigraphic unitsthe marine akata shales, the paralic agbada formation, and the continental benin.
This is located within the niger delta basin and sits in 12 feet of water. The water resources master plan prepared by the japan. Climate change, water and conflict in the niger river basin. Buhari approves executive management for river basin devt. Seismic and checkshot data, geophysical data and biostratigraphic data extracted from ditch cutting samples, were used for the sequence stratigraphic analysis of beta24 well within the beta field, northern depobelt of the niger delta basin. It is an extensional rift basin that formed as a result of a failed rift junction during the separation of the african plate and the south american plate, where the of basement tectonics on the structural evolution was limited by the movement of the oceanic fracture zones that extended beneath. According to 2,todays niger delta basin starts from idah and can be mapped in an area about halfway between enugu and onitsha which is somewhere around the oji river bridge. The niger delta basin has built out into the central atlantic at the north of the niger benue and cross river drainage systems. Department of geology, university of port harcourt, nigeria abstract.
The user has requested enhancement of the downloaded file. Stratigraphy and sedimentology of the niger delta 7 during the middlelate eocene, sediment was deposited fig. High resolution sequence stratigraphy genetic stratigraphy in reservoir sedimentology. Oil exploration and exploitation has been ongoing for several decades in the niger delta. Geology and mineral resources of the lower benue trough, nigeria. The benue trough had been formed as part of the widely distributed african rift population which originated some 140 million years ago burke, 1996. A nigerian newspaper and online version of the vanguard, a daily publication in nigeria covering nigeria news, niger delta, general national news. B cross section from nne to ssw across niger delta modified from stacher 1995. Pre drill pore pressure prediction from 3d seismic data in parts of the onshore niger delta basin.
The pdf file you selected should load here if your web browser has a pdf reader plugin. The niger delta is a wavedominated delta located on the continental margin of the gulf of guinea that formed in the paleogene. Some physical deterioration had set in and some gaps had reduced the total core length available to 316. The niger delta remains a worldclass petroleum province with significant prospective resource and. The drainage basin covers a surface area of just over 2. Pdf gis based mapping and analysis of oil pollution in. The current conflict in the niger delta first arose in the early 1990s over tensions between foreign oil corporations and a number of the niger delta s minority ethnic groups who feel they are being exploited, particularly the ogoni and the ijaw. An estimate of oil window in nigeria niger delta basin from. Stratigraphy and sedimentology of the niger delta geologos.
The upper and middle niger basin has about 20 million inhabitants, of which about 8 million each live in mali and niger. The niger delta is the cenozoic gross offlap clastic succession built out on top of the anambra basin. Environmental impacts of oil exploration and exploitation. The coastal sedimentary basin of nigeria has been the scene of three depositional cycles. Predicting petroleum generation is a critical issue in prospect evaluation for the deeper prospects because of its economic implications. Lithologies of cretaceous rocks deposited in what is now the niger delta basin can only be extrapolated from the exposed cretaceous section in the next basin to the.
874 864 1451 379 1043 1388 1047 254 1382 500 941 1339 1104 968 1146 798 870 1039 904 385 308 676 1440 52 832 1005 908 139 1210 1343 835 947 1028 1452 1411 861 784 1236 1240 584