However, the recycling of carbon as co2 is not totally efficient in that a very small. Mineralogical studies of tertiary subsurface sediments in the niger delta have shown that smectite, kaolinite, mixed. The niger delta is one of the worlds largest tertiary delta systems and an extremely prolific. The trend has been helped by growing recognition within the. Petrophysical analysis was performed in two wells in the niger delta region, nigeria. In most other oil provinces, there is a noticeable skewness in the distribution of field sizes, e. Requires subscription pdf published 20061010 issue vol 42 no 1 2006 section articles. 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. Petroleum hydrocarbons contamination of the environment associated with exploration, development and production operations is a common feature in oil producing nations around the world, especially in a developing country like nigeria where the incidence of facilities sabotage, operational failures, accidental discharges, pipeline vandalization and leakages, bunkering and artisanal refining is. Predicting petroleum generation is a critical issue in prospect evaluation for the deeper prospects because of its economic implications. The coastal sedimentary basin of nigeria has been the scene of three depositional cycles. Reservoir geology and sequence stratigraphy of deep water sediments, offshore depobelt, niger delta, nigeria matthew o. Petroleum geology of the niger delta is described in evamy et al.
A method to reduce the uncertainty of pressure prediction. A 2010 recipient of the prestigious aret adams award, bestowed by nape, dr. In the niger delta province, we have identified one petroleum system the tertiary niger delta akataagbada petroleum system. Mineral studies of the subsurface niger delta odigi. The study area lies within the northern delta, eocene older depobelt fig. American association of petroleum geologists studies in geology 27, 110. Surface geology shown on the african plate, major cretaceous rift basins and breakup direction shown. Niger delta petroleum systems, nigeria petroleum systems. Pdf evaluation of reservoirs petrophysical parameters. The structure of the offshore niger delta geology department. Niger delta petroleum systems, nigeria petroleum systems of. Thermal maturity evaluation and prediction of petroleum generation. The extensional domain, inner fold and thrust belt and the outer fold and thrust belt are all shown.
Structural and seismic facies interpretation of fabi field. 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. Stratigraphy and petroleum plays of the late to middle oligocene sediments in the xy field, onshore niger delta basin, nigeria samuel okechukwu onyekuru abstract nigerias search for increased oil and gas reserves requires the discovery of additional petroleum plays using more accurate exploration techniques like sequence stratigraphy. Brownfield openfile report 9950h 1999 contents forward by the u. 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 niger delta region of nigeria and petroleum hydrocarbons contamination. Doc geology of nigeria vincent kalu and stanless pee. Niger delta province, nigeria cameroon, and equatorial guinea, africa by michele l. The first began with a marine incursion in the middle cretaceous and was terminated by a mild folding phase in santonian time. The study area is located onshore of the niger deltanigeria, it covers an area of 40,000 km2. Exploration activities have been concentrated in the onshore part of this basin but as the delta becomes better understood. 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. Petrophysical evaluation of uzek well using well log and core.
In the niger delta province, we have identified one petroleum systemthe. Petroleum geology of the niger delta abstract the niger delta is a large, arcuate delta of the destructive, wavedominated type. Tertiary niger delta akataagbada petroleum system no. Stratigraphy and sedimentology of the niger delta geologos. 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. An estimate of oil window in nigeria niger delta basin. Geology department ahmadu bello university zaria, nigeria e. Regional psdm seismic line ng24500 across the main provinces of the niger delta. The niger delta basin is located in the gulf of guinea on the west coast of africa. Geology of niger delta petroleum reservoir petroleum. Niger delta petroleum systems, nigeria, by richard c. Sedimentary architecture models of deepwater turbidite. Petrophysical evaluation and volumetric estimation within. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l.
Proceedings of the ninth world petroleum congress 2, 209221. This system is referred to here as the tertiary niger delta akata agbada petroleum system. The niger delta system figure 1 is one of the worlds largest tertiary deltas and one of its most prolific hydrocarbon systems, containing an estimated 68 bboe and producing approximately 3 mmboe per day. Maps showing the geological setting of the niger delta in a section 8. The basin is deformed by large synsedimentaty faults, roll. It has an aerial extent of 75,000 km 2 and a total estimated area of 300,000 km 2. The basin has matured through one cycle of successful exploration, and future success depends on linking the geology of the shelf and onshore areas to deep. The minimum extent of the petroleum system is defined by the areal extent of fields and contains known resources cumulative production.
It lies in the south western part of the benue trough, which is a much bigger tectonic. Nov, 2015 7the niger delta province petroleum geology i ss 2014 facies distribution of the niger delta fig. Map of niger delta showing the study the niger delta is the largest delta in africa with a subaerial exposure of about 75 000 km. American association of petroleum geologists bulletin 56. Udoh 1,2department of geology, university of port harcourt, port harcourt, nigeria. The identified petroleum system within the niger delta province is the tertiary niger delta akataagbada petroleum system 1416. Petroleum geology of the niger delta geological society, london. In 1965, the delta 1 well was completed and the delta field opened in 1968 for production. Geological section through the sedimentary layers of the niger deltas mouth 9. Clays from the recent delta have similar mineralogical compositions.
Petroleum hydrocarbons contamination of surface water and. Nov 21, 2017 a the niger delta complex and b section through the continental shelf, slope and rise showing structural domains of niger delta cohen and mcclay 1996 full size image 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. The niger delta region in the light of the theory of. American association of petroleum geologists bulletin 76 547 562.
The three main geological formations that make up the niger delta are the akata, agbada and benin formations. Hydrocarbon charge in petroleum systems of the niger delta, nigeria bj katz energy technology company, chevron, 1500 lousiana. But, there exists a variation in the nature and rate of sediment supply and accommodation space resulting in the pattern and nature of sediments deposited in. Sedimentological aspects of oil fields in the niger delta. The size and distribution of niger delta fields is remarkable. A considerable amount of new information, however, has become available since publication of those papers, including penetration of a tertiary oilprone source rock sequence in aroh2 well. Lateral variation in magnetic susceptibility and remanence give rise to spatial variations in the magnetic field it is expressed in so called magnetic anomalies, i. It is typically considered to be located within nine coastal southern nigerian states, which include. Stratigraphy and sedimentology of the niger delta in.
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. It has long been recognized that the prograding niger delta causes extensive gravity spreading with the offshore manifestation of this gravitydriven deformation consisting of substantial extension on the shelf and inner slope, and con. A suite of geophysical open hole logs namely gamma ray. Reservoir characterization in o field in the niger delta. Department of geology, university of port harcourt, nigeria abstract. Fundamentals of petroleum geology pdf free download. Niger delta akataagbada petroleum system of9950h, chapter a. Petroleum pipelines, spillages and the environment of the. Niger delta petroleum resources plc upstream nigeria oil. The niger delta petroleum system usgs publications repository. Niger delta petroleum systems, nigeria request pdf.
The bida basin, also known as the midniger or nupe basin, is located in westcentral nigeria figure. The niger delta basin has a total area of about 75,000 km 2 and occupies the coastal and part of the oceanward of the benue trough. However, the recycling of carbon as co2 is not totally efficient in that a very small amount about 0. This study is aimed at making available petrophysical data, basically water saturation calculation using cementation values of 2. In 1997, 96% of the niger delta recoverable petroleum was in nigeria, 3. It seeks to operate as an integrated oil and gas company. The geology of the tertiary niger delta province has been described by several workers short and stauble, 1967. The niger delta basin is located on the continental margin of the gulf of guinea in between latitudes 3 and 6 n and longitudes 5 and 8 e. Geologic map of the niger delta basin and the benue trough, and the oil fields in the region. Journal of petroleum exploration and production technology.
Petrophysical evaluation and reservoir geometry deduction. Pd 41 petroleum geology of the niger delta onepetro. The basin consists of progradational, paralic sequences of akata, agbada and benin formations which builds southwards into the deep waters and. The niger delta is a wavedominated delta located on the continental margin of the gulf of guinea that formed in the paleogene. Resistivity, sonic, caliper and density were used to. Geological map of the niger delta and surroundings. Reservoir description and characterization of eni field. Niger delta continental slope, deepwater deposits, turbidite channel systems, architecture models sedimentary architecture models of deepwater turbidite channel systems in the niger delta continental slope, west africa corresponding author. Stratigraphy and petroleum plays of the late to middle.
Fatona is also a leading authority on the geology of the niger delta oil and gas province. An estimate of oil window in nigeria niger delta basin from. The niger delta is the delta of the niger river sitting directly on the gulf of guinea on the atlantic ocean in nigeria. Our publiclyowned company and its subsidiaries continually strive to establish an active partnership with the host communities in which we conduct our operations. Petrophysical evaluation had been carried out as well as deducing the reservoir geometry. The company operates around 3 oil blocks in its region after it acquired a 100% stake and operatorship of the omerelu farm out area in 2014 from the nnpcchevron jv. Niger delta petroleum systems, nigeria request pdf researchgate. In more recent times, the environment in the niger delta has been at the centre of local and international discourse in seminars, conferences and even in the government. The delta field is located offshore from nigeria on oil mining leases oml 49 and 95. 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. Engineering geology of the niger delta 67 sediments originating from the vast catchment area and geologic ally com plex hinterland fig. Niger delta, gravity spreading, toe thrust, faultrelated folding, mobile shale. The niger delta province contains only one identified petroleum system kulke, 1995. Recoverable oil and gas produced plus proved reserves are much smaller than in nigeria.
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