Sequence stratigraphy and depositional environments of middle. 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. Within the delta the river breaks up into an in nigeria. The niger delta is one of the worlds largest tertiary delta systems and an extremely. Cenozoic niger delta the modern delta recent depositional environments and sedimen tary facies in the niger delta described by allen 1965, 1970 have furnished a lithogenetic model that relates facies variations of modem high energy, wavedominated, constructional, arcuatelobate trop ical deltas to depositional process fig. 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. The majority of the people in the delta live on the. Stratigraphy and sedimentology of the niger delta in. The established tertiary sequence in the niger delta consists, in ascending order, of the akata, agbada, and benin formation. An overview of the geology and hydrogeology of nigeria. Hydrocarbon charge in petroleum systems of the niger delta, nigeria. Hydrocarbon charge in petroleum systems of the niger delta.
Introduction the niger delta is ranked among the worlds major hydrocarbon provinces in the world. Structural and stratigraphic mapping of delta field. Reservoir description and characterization of eni field. 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. Mineralogical studies of tertiary subsurface sediments in the niger delta have shown that smectite, kaolinite, mixed. 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. Odeyemi intermediate rocks from older granite complexes. Information on the geological setting of the niger delta has been well published nwajide, 2006. The first began with a marine incursion in the middle cretaceous and was terminated by a mild folding phase in santonian time. Sequence stratigraphy and depositional environments of. It is the most important in the west african continental margin. Geology and mineral resources of the lower benue trough, nigeria.
It is situated between latitudes 3 and 6 n and longitudes 5 and 8 e fig. Nigeria is the 12th largest producer of crude oil in the world. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i. Geological section through the sedimentary layers of the niger deltas mouth 9. Tertiary niger delta akataagbada petroleum system no. Niger delta petroleum systems, nigeria petroleum systems.
Geology department ahmadu bello university zaria, nigeria e. Structural interpretation of seismic data from an xy field. The major occupation of people in the region is fishing and agriculture and the region is abundantly blessed in this respect. Pdf assessment of hydrocarbon potential in owem field in niger. An estimate of oil window in nigeria niger delta basin from. Sequence stratigraphy of the niger delta, delta field, offshore nigeria.
Foraminifera biostratigraphy and paleoenvironment of well. This was aimed at increasing the resolution for prediction of reservoir, seal, and source rocks in the eastern part of the basin. The benue trough had been formed as part of the widely distributed african rift population. Nigeriasao tome joint development zone warri opl 302 oml 125 opl 343 opl 319 2 0 0 m 400 m oml 62 omlo 38 opl 289 pl 27 opl 9 1 oml 20 1, 0 0 0 m 2 oml 45, 0 0 0 m oml 22 oml 41 oml 29 op 35 3, 0 0 0 m 2 0 0 m opl 244. It is bounded to the west and northwest by the western african shield, which termi. The region is of great socioeconomic importance to nigeria because of enormous reserves of petroleum of. 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.
Historically, structural play types have dominated, although large stratigraphic traps have also been discovered. Exploration activities have been concentrated in the onshore part of this basin but as the delta becomes better understood. Geology and mineral resources of the lower benue trough. Oil and gas in the niger delta are primarily produced from. Nigeria sao tome joint development zone warri opl 302 oml 125 opl 343 opl 319 2 0 0 m 400 m oml 62 omlo 38 opl 289. Psintegrated reservoir quality study of deepwater clastic deposits, offshore western niger delta, nigeria c. 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. Therefore galloways approach is preferred here for deltawide stratigraphic correlation. The unresolved issues, journal of environmental science and technology 43.
Structural and stratigraphic mapping of delta field, agbada. Petroleum geology of the niger delta geological society, london. Analysis of communitydriven development in nigerias niger delta region iii mwangi s. 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. 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. Foraminifera biostratigraphy and paleoenvironment of well 5. 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. It is typically considered to be located within nine coastal southern nigerian states, which include. Niger delta geographical region, africa britannica.
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. Little work has been done in this section to ascertain its geology. Late miocene to early pliocene palynostratigraphy and. The geology of nigeria formed beginning in the archean and proterozoic eons of the precambrian. The strata composed an estimated 8,535 m 28000 ft of section at the approximate depocenter in the central part of. The basin is deformed by large synsedimentaty faults, roll. The niger delta basin, situated at the apex of the gulf of guinea on the west coast of africa, is one of the most prolific deltaic hydrocarbon provinces in the world figure 1. 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. This third lithic unit within the ameki group is less systematically. Doc geology of nigeria vincent kalu and stanless pee. Delta field, niger delta, integration, stratigraphic mapping, structural interpretation, well logs.
Mineral studies of the subsurface niger delta odigi. The niger delta sedimentary basin of nigeria contains more than 12km of marine and deltaic sediments. The geology of nigeria, as detailed in kogbe, is made up of three main rock. Geology and mineral resources of nigeria nuhu george obaje. Petroleum geology of the niger delta is described in evamy et al. This was followed by a regression that started during the. 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. The niger delta basin lies between latitude 40000n and 60000n and longitude 50000e and 80000e. Integrated reservoir quality study of deepwater clastic. Jun 16, 2019 the gboko limestone, yandev, benue state, nigeria. The niger delta is the delta of the niger river sitting directly on the gulf of guinea on the atlantic ocean in nigeria.
The northern boundary is the benin flankan eastnortheast trending hinge line south of the west africa basement massif. Stratigraphy and sedimentology of the niger delta 5 wide genetic sequences as defined by galloway 1989 and consisting of strata bounded by maximum flooding surfaces within transgressive shales are more readily identifiable in the niger delta. The study area is located within the northern depobelt of the niger delta sedimentary basin fig. Geological map of the niger delta and surroundings. The study area is located within the niger delta, nigeria. Contains details on the geological units of nigeria and the associated mineral resources. Niger delta akataagbada petroleum system of9950h, chapter a. Agbada shales as major source rocks in the niger delta. Structural and seismic facies interpretation of fabi field. The onshore portion of the niger delta province is delineated by the geology of southern nigeria and southwestern cameroon. Its development began after the eocene tectonic phase. Geology of the niger delta the niger delta is an oil province of nigeria located on the west african continental margin. The occurrence of groundwater in nigeria is dependant primarily on the geology, and groundwater regions can be classified accordingly. Stratigraphy and sedimentology of the niger delta sciendo.
Requires subscription pdf published 20061010 issue vol 42 no 1 2006 section. The coastal sedimentary basin of nigeria lias been the scene of three deposilional cycles. American association of petroleum geologists bulletin. The country forms the nigerian province and more than half of its surface is igneous and metamorphic crystalline basement rock from the precambrian. Niger delta is the youngest sedimentary basin within the benue trough system. Geology and mineral resources of nigeria nuhu george. Pdf an overview of the geology and hydrogeology of. Northern delta depobelt portion of the akataagbada petroleum system, niger delta, nigeria.
The sedimentary basin occupies a total area of about 75,000 km 2 and is at least 11 km deep in its deepest parts. Hydrocarbon charge in petroleum systems of the niger delta, nigeria bj katz energy technology company, chevron, 1500 lousiana. The niger delta is a prolific oil province within the west african subcontinent. Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of part 2. Erml 1997 defines the original niger delta region about 29,900 square kilometers as comprising the area covered by the natural delta of the river niger and the areas to the east and west. 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. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. An estimate of oil window in nigeria niger delta basin. Kimenyi is a senior fellow and director of the africa growth initiative agi at the brookings institution. Niger delta petroleum systems, nigeria petroleum systems of.
There are considerable groundwater and surface water resources available in 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. Recent interests in drilling highrisk depths and targets. Geoligical section through the agbadaakataformation showing sedimentary deposits and time. The niger delta has three major depositional prisms. Geography geology, relief, drainage and ecological zones climate the people. Rationale for a human development approach to the niger delta.
The region is the 3 rd largest producer of palm, after malaysia and indonesia and the largest producer of cassava. The fundamental causative event for the origin of the niger delta basin was the breakup of the gondwana supercontinent. This was followed by a regression that started during the eocene and continued to the present day with the deposition of the sediments of the tertiary niger delta. The first began with a marine incursion in the middle cretaceous and. The coastal sedimentary basin of nigeria has been the scene of three depositional cycles. The subsurface geology of delta state which is part of the niger delta basin is depicted in figure 1. The depositional environments, and corresponding sedimentary facies, are distributed concentrically within the deltaic region. Pdf an overview of the geology and hydrogeology of nigeria. Formation evaluation of an onshore oil field, niger delta. The niger delta region is situated in the gulf of guinea between longitude 50e to 80e and latitudes 4 0n to 6n, as shown in figure 1, opafunso, 2007.