This basin is very complex, and it carries high economic value as it contains a very. Abstract the study of geotechnical index properties of soils in warri, delta state was carried out to determine. Pdf sedimentology and ichnology of neogene coastal swamp. Radiogenic heat generation in the crustal rocks of the. 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. Integrated reservoir quality study of deepwater clastic deposits, offshore western niger delta, nigeria c. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. The niger with 1,693 kilometers in mali and senegal are malis two largest rivers.
Our publiclyowned company and its subsidiaries continually strive to establish an active partnership with the host communities in which we conduct our operations. The depositional environments, and corresponding sedimentary facies, are distributed concentrically within the deltaic region. 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. Regional stratigraphy of the niger delta the tertiary niger delta is composed of an overall clastic succession that reaches a maximum thickness of 9 12,000 meters 2.
The aim of this study was to simulate the radioactivity of the crustal rocks of the niger delta sedimentary basin using analytic solutions of the heat conduction equation and the method of least squares regression analysis for an earth model with radiogenic heat generation. 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. Oil and casualization of labor in the niger delta foreword by richard l. Sequence stratigraphic framework of the paradisefield. Palynostratigraphy of upper miocene pliocene sediments.
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. Foraminifera biostratigraphy and paleoenvironment of well. Pdf an overview of the geology and hydrogeology of nigeria. Modeling hydrocarbon generation potentials of eocene. Keywords oil generation eocene niger delta source rock northern delta depobelt introduction the niger delta basin, located on the western edge of the african continent and southern part of nigeria, covers an area of 75,000 km2 and consists of 900012,000 m of. Reservoir characterization in o field in the niger delta. Petroleum geology of the niger delta abstract the niger delta is a large, arcuate delta of the destructive, wavedominated type. Trumka, president, aflcio t he quest for oil roils markets and heavily in. Petroleum prospectivity and depositional model of freservoir. The niger delta is the delta of the niger river sitting directly on the gulf of guinea on the atlantic ocean in nigeria. It is the most important in the west african continental margin. Brief geology of niger delta crude oil production in nigeria is produce in the niger delta of nigeria. Department of geology, university of nigeria, nsukka, enugu state, nigeria email. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i.
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. Tertiary niger delta akataagbada petroleum system no. The bida basin, also known as the mid niger or nupe basin, is located in westcentral nigeria figure. Reservoir description and characterization of eni field.
Implications for the environment corresponding author. An estimate of oil window in nigeria niger delta basin from. For more information on the usgsthe federal source for science about the earth, its natural and. Sedimentology and ichnology of late oligocene delta front. Stratigraphic evolution of the tertiary niger delta and underlying cretaceous strata is described by. Estimation of reservoir potentials of two wells in niger.
Source, depositional environment and maturity levels of. He is a leading authority on the geology of the niger delta oil and gas province. Udoh 1,2department of geology, university of port harcourt, port harcourt, nigeria. P3 1,2department of geology, university of port harcourt, port harcourt, nigeria 3 department of petroleum engineering, nigerian agip oil company, port harcourt, nigeria abstract. Integration of well logs and seismic attribute analysis in reservoir. It is also regarded as one of the highly productive sedimentary basins in the subsaharan africa, due to its rich hydrocarbon content. Origin and occurrence of crude oil in the niger delta, nigeria. It is typically considered to be located within nine coastal southern nigerian states, which include. Geology department ahmadu bello university zaria, nigeria e. An overview of the geology and hydrogeology of nigeria. A sequence of undercompacted marine clays, overlain by paralic deposits, in turn covered by continental sands, is present throughout, builtup by the imbricated super position of numerous offlap cycles.
A suite of oil samples from an onshoreswamp field in the northwestern niger delta was analyzed using whole oil gas chromatography. Delta field, niger delta, integration, stratigraphic mapping, structural interpretation, well logs. Benue trough is a nesw folded rift basin that runs diagonally across nigeria. 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. Niger delta province, nigeria, cameroon, and equatorial guinea, africa. Hydrocarbon play assessment of xfield in an onshore niger.
Pd 41 petroleum geology of the niger delta onepetro. 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. The niger delta basin covers an area of about 75,000 km 2 and consists of 912 km total thickness of regressive clastic sequences. The tectonic evolution of benue trough and niger delta are well documented in niger delta geologic literatures e. The oil samples were analyzed to correlate the oils and to evaluate post generative alterations using light hydrocarbons. Geological section through the sedimentary layers of the niger delta s mouth 9.
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. If the inline pdf is not rendering correctly, you can download the pdf file here. Depositional environments of sambis oil field reservoir. From the eocene to the present, the delta has prograded southwestward, forming depobelts that represent the most active portion of the delta at each stage or its development. The basin is deformed by large synsedimentaty faults, roll. The region is the most blessed deltas in the world, in both human and material resources but the unfavorable manner in which these resources are harnessed overtime, is the bane of the regions predicament. Doc geology of nigeria vincent kalu and stanless pee.
Assessment of hydrocarbon potential in owem field in niger delta, nigeria. Maps showing the geological setting of the niger delta in a section 8. The study area is located onshore of the niger delta nigeria, it covers an area of 40,000 km2. Stratigraphy and sedimentology of the niger delta 7 during the middlelate eocene, sediment was deposited fig.
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. Stratigraphy and sedimentology of the niger delta in. The niger delta petroleum system usgs publications repository. Figure 2 is a 275 km, prestack depth migrated and interpreted seismic line across the offshore niger delta that extends from the shelf to the basin floor. Psintegrated reservoir quality study of deepwater clastic deposits, offshore western niger delta, nigeria c. The niger delta is a major hydrocarbon producing basin in nigeria where intensive exploration and exploitation activities have been on since early 1960s owing to the discovery of commercial oil in oloibiri1 well in 1956 reijers et al. Geological section through the sedimentary layers of the niger deltas mouth 9. 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. 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. 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 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. Department of geology, university of port harcourt, nigeria abstract.
Abstract in the niger delta province, we have identified one petroleum systemthe tertiary niger delta akataagbada petroleum system. Reservoir geology and sequence stratigraphy of deep water sediments, offshore depobelt, niger delta, nigeria matthew o. Nyantakyi et al 20 studied the structural and stratigraphic mapping of delta field, agbada formation, offshore niger delta. The agbada formation is the major oilproducing formation in the niger delta complex basin, and overlies the eocene akata formation, which is the principal hydrocarbon source rock. Introduction the niger delta is ranked among the worlds major hydrocarbon provinces in the world. The geology of the tertiary niger delta province has been described by several workers short and stauble 1967.
Niger delta akataagbada petroleum system of9950h, chapter a. Sediments in well z, offshore niger delta asadu, a. Afr 440172009 6 research for this report this report is based on fieldwork carried out in the niger delta in march and april 2008, as well as desk research and followup research from london between may 2008 and may 2009. The niger delta the nigerdelta area of nigeria coincides approximately to the southsouth geopolitical zone of the country fig i. The tadelu field in western niger delta, nigeria, consists of a series of vertically stacked reservoirs in the agbada formation, thus making the field a complex sedimentary environment. The niger delta is located in the atlantic coast of southern nigeria and is the worlds second. The niger is generally described as malis lifeblood, a source of food, drinking water, irrigation, and transportation. Sequence stratigraphic framework of the paradise field niger delta, nigeria. Its development began after the eocene tectonic phase. 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. Oil and gas in the niger delta are primarily produced from. Geology of the niger delta the niger delta is an oil province of nigeria located on the west african continental margin.
See below for the abstract, table of contents, list of figures, list of tables, list of appendices, list of abbreviations and chapter one. 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. Field evaluation in a complex sedimentary environment is always tedious due to problems associated with imaging of the subsurface in such areas. The third cycle, from eocene to recent, marked the continuous growth of the main niger delta. The niger delta is framed on the northwest by a subsurface continuation of the west african shield, the benin flank. Structural and stratigraphic mapping of delta field, agbada. Formation evaluation of an onshore oil field, niger delta.
Over 10 million scientific documents at your fingertips. Hydrocarbon play assessment of any hydrocarbon reservoir unit depends on the porosity, permeability, hydrocarbon saturation and water saturation of petrophysical model distributions and seismic reflections of reservoir rocks. Nov, 2015 7the niger delta province petroleum geology i ss 2014 facies distribution of the niger delta fig. Geology and mineral resources of the lower benue trough. 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.
Therefore, this paper highlight the specific context for physical planning input and the necessity for this in pipeline routes, planning, and monitoring of its impact. The tertiary niger delta is one of the major regressive deltaic sequences in the world. Specifically it seeks to understand the deleterious impact of oil spillage on the physical environment of the niger delta regionof nigeria. Georger joined the petrolin group switzerland in 1995 and is responsible for all crude oil trading activities, including the. Past and present environmental issues in the nigerias niger delta. Secondly to determine the possible solutions to the problem of oil. The geologic evolution of the niger delta basin transcends and predates the paleocene regressive clastic wedge that. Case study of field x, niger delta kelechi azubuike ijomah1, beka f. The stratigraphy of the thick sedimentary sequence is divided into three lithostratigraphic units, namely. Petroleum pipelines, spillages and the environment of the niger delta region of nigeria. Integrated reservoir quality study of deepwater clastic. The niger delta is an oil province of nigeria located on the west african continental margin. Geotechnical properties of soils in a crude oil impacted.
This is located within the niger delta basin and sits in 12 feet of water. The main objective of this study is to perform geophysical. The geotechnical properties of soils at a 44year old hydrocarbon spill site were determined and the changes in soil properties due to the spill were evaluated. Oil continues to power transportation, manufacturing, and global trade, and is everpresent, from gasoline to household chemicals and countless consumer items. Regional integration of results from conventional exploration geochemistry, structural analysis, and gravitymagnetic data provide a comprehensive new understanding of niger delta petroleum systems. The southern nigeria sedimentary basin includes the lagososse and the niger delta. The objective of the study is to resolve the ambiguities that are associated with hydrocarbon play assessment of an xfield in the niger delta basin. There are several rivers that channel into the atlantic ocean directly, all other flowing waters flow into the chad basin or into the lower niger to the sea eventually kuruk, 2004. The countrys lowest point is on the senegal river 23 m and its highest point is hombori tondo 1155 m. Tomboy field, western niger delta, nigeria and concluded that the field is made up of sand bodies deposited in different environments across normal, growth faults and associated rollover anticlinal structures. Petrophysical evaluation of reservoir sand bodies, onshore field, eastern niger delta, nigeria okumokod. The niger delta region in the light of the theory of. Sedimentology and ichnology of neogene coastal swamp deposits in the niger delta basin 193 ognised, each with its own sedimentary, deforma tional and petroleum history michele et al.
Petroleum, pollution and poverty in the niger delta amnesty international june 2009 index. If the inline pdf is not rendering correctly, you can download the. Stratigraphic framework of the western central swamp of. Odeyemi intermediate rocks from older granite complexes. The niger delta is the center of oil and gas production in nigeria, accounting for about 80% of total government revenue, 95% of foreign exchange and over 80% of national wealth tell, february 18, 2008. The thickness of the basin ranges between 1012km and it is. Oil samples from six oilfields in the central niger delta were analyzed for normal alkanes, aliphatic isoprenoid hydrocarbons, aromatic. The oil industry in the niger delta is dominated by multinational corporations such as chevron. Niger delta usgs pdf tertiary niger delta akataagbada petroleum system no. From the east edge of the niger delta south to the walvis.
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. According to opafunso 6 the niger delta itself lies between longitudes 5o 00. Accumulation of marine sediments in the southern nigerian basin probably commenced in. Reservoir description and characterization of eni field offshore niger delta, southern nigeria. Assessing wetland services in the niger delta, nigeria. Stratigraphy and sedimentology of the niger delta geologos. Niger delta basin, is located within the gulf of guinea and covers an area of about 75,000km 2 and has an average sediment thickness of about 12,000m reijers, et al. 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 basin is situated in the gulf of guinea in equatorial west africa, between latitudes 30n and 60n and longitudes 50e and 80e reijers et al, 1996 fig. Assessment of undiscovered petroleum in the tertiary niger delta. Petroleum exploration and production in the nigerias niger delta region and export of oil and gas resources by. Geology and mineral resources of the lower benue trough, nigeria. Geological map of the niger delta and surroundings.
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