Sample records for olmeca nigerian forcados

  1. General overview of the Nigerian construction industry

    E-Print Network [OSTI]

    Dantata, Sanusi (Sanusi A.)

    2008-01-01T23:59:59.000Z

    The purpose of this study is to investigate and provide a general overview of the Nigerian construction industry, its role in the national economy, the main participants in the industry, the problems that they face, and ...

  2. Nigerian refineries strive for product balance

    SciTech Connect (OSTI)

    Obuasi, P.A.

    1985-06-17T23:59:59.000Z

    This article discusses the growth patterns of the Nigerian refining industry. Production and consumption are expected to follow the pattern of consumption of fuel products by the domestic market, Presently, however, production and consumption are not evenly balanced for most fuel products, and non-fuel products are domestically consumed but not produced. Some progress has been made in the effort to match production and consumption of fuel products. But the progress that would have been made to balance non-fuel products has been nullified by 50% of the Daduna refinery being idle. This is due to problems associated with importation of heavy crude oil into Nigeria and also a weak market for asphalt in Nigeria.

  3. Lead Exposure: A Contributing Cause of the Current Breast Cancer Epidemic in Nigerian Women

    E-Print Network [OSTI]

    Alatise, Olusegun I.; Schrauzer, Gerhard N.

    2010-01-01T23:59:59.000Z

    Keywords Breast cancer . Lead . Cadmium . Tin . Chromium .selenium and low doses of lead on mammary tumor development2001) Prevalence of elevated blood lead levels in Nigerian

  4. Lead and other metals in dried fish from Nigerian markets

    SciTech Connect (OSTI)

    Okoye, C.O.B. (Univ. of Nigeria, Nsukka (Nigeria))

    1994-06-01T23:59:59.000Z

    The Nigerian economy had remarkable industrial growth between 1970 and 1980 and industrialization and urbanization have been sustained albeit at a slower rate. Nevertheless, waste management remains grossly underdeveloped. Environmental concern is only a recent phenomenon, resulting thus far in the launching of a monthly clean-up campaign in 1984 and the establishment of the Federal Environmental Protection Agency (FEPA) in 1988. The level of public awareness has not been encouraging. The indiscriminate discharge of largely untreated factory and urban effluents has continued. Streets and home surroundings become littered soon after clean-up exercises. Inadequate facilities contribute to the unwholesome situation. Refuse collecting centers are mostly without any holding containers, and solid wastes, the focus of the monthly clean-up, are left on the bare ground. Heavy automobile traffic and high lead content of the local automobile fuels have not helped matters. Heavy metals in the human environment are of global concern. In developed countries, limits of concentrations in fish and other foods have been set to safeguard public health, but Nigeria has yet to set any standards because of lack of baseline data. Within the last decade, scientists have been reporting on heavy metal levels in fish from the aquatic environment of Nigeria. Among the metals, lead was the most prominent, with a mean value comparable to the set limits in Great Britain and New Zealand. The present study was aimed at further establishing the levels of contamination in fish by lead and other metals in the Nigerian aquatic systems. Smoke-dried fish, being the most consumed by the local population, was chosen for the survey on the levels of cadmium, cobalt, copper, chromium, iron, manganese, lead and zinc. Possible surface contamination arising from observed poor handling practices was also investigated. 18 refs., 1 fig., 4 tabs.

  5. Application of a. Delta. P technique to monitor oxidation of Nigerian coals

    SciTech Connect (OSTI)

    Ogunsola, O.I.; Mikula, R.J. (Energy, Mines and Resources Canada, CANMET, Coal Research Lab., P.O. Bag 1280, Devon, Alberta (CA))

    1992-10-01T23:59:59.000Z

    In this paper, the results of a study on the effect of oxidation on the {Delta}P index and acidity of three Nigerian coals are reported. The coals are oxidized in air over a period of 35 days at both 100 and 50{degrees} C. The heating value, slurry pH (acidity), and the {Delta}P index of three Nigerian coal samples were monitored as a function of oxidation time. The results revealed a decrease in {Delta}P index and an increase in the acidity of all three coals with increase in oxidation time. The heating value of the coals was also reduced by the oxidation.

  6. Adjusting flow station job to remote Nigerian location yields savings

    SciTech Connect (OSTI)

    Wooten, R.; Williams, E.C. (OPI International Inc., Houston, TX (United States))

    1994-05-02T23:59:59.000Z

    In September 1991, Chevron Nigeria Ltd. and Nigerian National Petroleum Crop. contracted Offshore Pipelines to design, procure, construct, install, and commission the Opuekeba 30,000 b/d crude-oil flow station on an offshore platform near Olero Creek, Nigeria, approximately 22 miles from the nearest deepwater access. Chevron's original project plan included bringing the flow station to the site in small packages and then assembling it in a lengthy field hook-up process. Offshore Pipelines developed a plan early in the project to maximize construction and hook-up in the fabrication yard, then transport the nearly complete structures to site by way of a newly dredged canal. What proved to be most difficult was the site location in Nigeria. Job planning and communication were important in the successful completion of the project. Keeping the components of the large and complex facility simple proved to be effective and efficient and played a key role in completing the project on time and within budget. The paper discusses overcoming obstacles, lift and depth constraints, dredging, fabrication, installation, and large-time problems.

  7. Tolerance of nitrobacter to toxicity of some Nigerian crude oils

    SciTech Connect (OSTI)

    Okpokwasili, G.C.; Odokuma, L.O. (Univ. of Port Harcourt (Nigeria))

    1994-03-01T23:59:59.000Z

    Crude oil spillage in aquatic systems affects thousands of aquatic species including bacteria. Some of the crude oil components are rapidly evaporated or biologically degraded. Other components continue to remain for several months and perhaps several years. Some of these components may be toxic to microorganisms, while some may stimulate microbial activity especially at low concentrations. The use of bacteria as bioassay organisms is now gaining wide acceptance. It offers a number of advantages such as ease of handling, economy of space, short life cycles and low cost. Their uses in bioassays are based on cell lysis, mutagenic properties and the inhibition of physiological processes such as respiration. Recently, a number of workers have proposed the use of Nitrobacter as a test organism. The organism has a number of advantages in toxicity testing: obligate autotrophy, its sensitivity to various toxicants and its predominance in wastewater environments are some of them . Of recent, the inhibition of bacterial enzyme biosynthesis have been suggested in bacterial assays. The objective of this study was to determine the effects of six Nigerian crude oils on the cell reproduction rate (LC, lethal concentration), cellular respiration (EC, effective concentration) and biosynthesis of enzyme responsible for nitrite oxidation (IC, inhibition concentration) in Nitrobacter. In addition, the goal was to identify which of these was the most sensitive to crude oil and which may thus be used for detecting the toxicity of these chemicals. 18 refs., 2 figs., 1 tab.

  8. Sodium and oxygen in Nigerian coals: Possible effects on ash fouling

    SciTech Connect (OSTI)

    Ewa, I.O.B.; Elegbe, S.B.; Adetunji, J. [Ahmadu Bello Univ., Zaria (Nigeria)

    1996-09-01T23:59:59.000Z

    Ash fouling during heat transfers in coal power-plants has been known to be an engineering problem caused by high sodium levels of the feed-coals. Instrumental Neutron Activation Analysis (INAA) was used in determining the concentration of some alkali elements (Na, Ca, Mg) associated with ash fouling for eight Nigerian coals mined at Onyeama, Ogbete, Enugu, Gombe, Okaba, Afikpo, Lafia and Asaba. Sodium levels were generally low (0.001-0.036%). Oxygen concentrations considered as an indicative measure of the wettability of each of the coals were determined. The possible effects of the concentration of these elements on ash fouling were discussed. 8 refs., 3 tabs.

  9. Natural resource booms and Third World development: Assessing the subsectoral impacts of the Nigerian petroleum boom on agricultural export performance

    SciTech Connect (OSTI)

    Banks, S.M.

    1991-01-01T23:59:59.000Z

    Linear and quadratic expansion model formulations are developed to assess the relative complexity of booming-non-booming sector interactions. Specific attention is given to the extent to which the growth rates of Nigerian agricultural exports have changed over time as: (a) the volume of oil exports, and (b) the growth rate of oil exports are allowed to vary over a set of hypothetical values which reflect Nigerian oil-boom realities. Four important conclusions emerge: (a) the quadratic expansion model most accurately captures Nigerian oil-agricultural exports are most clearly influenced by the oil boom; (c) the growth rate of capital-intensive agricultural exports are initially stimulated, and later stagnated by the oil boom, while the growth rate of subsidized labor intensive agricultural exports are first stagnated and then stimulated by the oil boom; and (d) the expansion method provides a useful alternative means of exploring theoretical and applied issues related to the Dutch Disease paradigm. the implications of the findings for agricultural and petroleum policy in Nigeria are assessed, and a research agenda for further booming-non-booming sector investigations is proposed.

  10. Preliminary studies on the recovery of bitumen from Nigerian tar sands: I. Beneficiation and solvent extraction

    SciTech Connect (OSTI)

    Ademodi, B.; Oshinowo, T.; Sanni, S.A.; Dawodu, O.F.

    1987-01-01T23:59:59.000Z

    Solvent extraction of bitumen from Nigerian tar sands using toluene has been investigated. Pulverization of the tar sands followed by agglomeration in a mechanical shaker resulted in spherical agglomerates having higher bitumen contents than the mined tar sand. The extent of beneficiation was 4% and 19% for the high grade and low grade sands, respectively. Temperature, agitation, and tar sand/solvent (S/L) ratios were found to be significant variables affecting the dissolution of bitumen from the sand. S/L ratio has the greatest effect on extraction efficiency. The rate of bitumen extraction, expressed as extractability eta* showed great dependence on agitation. About 16- and 15-fold increases in extractability were obtained for S/L ratios of 1/20 and 1/5 respectively for a 2.8 fold increase in agitation. At the initial stages of extraction, asphaltene content of the bitumen extracted at 50/sup 0/C was less than that in the bitumen extracted at 25/sup 0/C. This finding could have significant implications for the overall economics of upgrading processes. A high extraction efficiency of about 99% was obtained with stagewise extraction at high tar sand/solvent ratios.

  11. Polycyclic aromatic hydrocarbons in fresh and smoked fish samples from three Nigerian cities

    SciTech Connect (OSTI)

    Akpan, V.; Lodovici, M.; Dolara, P. (Dept. of Pharmacology and Toxicology, Florence (Italy))

    1994-08-01T23:59:59.000Z

    Nigeria is a major producer of crude oil in sub-Saharan Africa. In-shore and off-shore wells are located in richly watered creeks in the southern part of the country. Although published data on environmental impact assessment of the petroleum industry in Nigeria are lacking, there is a growing concern about the possible contamination of estuarine and coastal waters and of marine species by polycyclic aromatic hydrocarbon (PAHs). PAHs are ubiquitous priority pollutants that occur naturally in crude oil, automobile exhaust emissions and smoke condensates from incomplete combustion of carbonaceous materials. PAHs with high molecular weight are less readily biodegraded by indigenous microorganisms in some regions, and given their marked hydrophobic characteristics, may persist in the aqueous environment, thus contaminating the food chain by bioaccumulating in aquatic species like fish and mussels. Major Nigerian oil wells are located in the vicinity of breeding and harvesting sites serving the fresh-water fishing industry. Large hauls of fresh fish are normally consumed cooked in soups or smoke cured in handcrafted traditional ovens using freshly cut red mangrove (Rhizophora racemosa) wood as fuel. Though smoke curing is economical and may ensure longer conservation of fish, it undoubtedly increases the burden of PAHs in finished products as a result of partial charring and from smoke condensates or mangroves that also contain PAHs in measurable quantities as reported by Asita et al. (1991). Apart from PAHs analyzed by Emerole (1980) in smoked food samples from Ibadan using simple analytical methods, those from industrial and other anthropogenic sources have rarely been analyzed in Nigeria. We tried therefore to update the data and address this discrepancy. 14 refs., 4 figs., 2 tabs.

  12. ALKALI – CATALYSED PRODUCTION OF BIODIESEL FUEL FROM NIGERIAN CITRUS SEEDS OIL

    E-Print Network [OSTI]

    unknown authors

    The potential of oil extracted from the seeds of three different Nigerian citrus fruits for biodiesel production was investigated. Fatty acid alkyl esters were produced from orange seed oil, grape seed oil and tangerine seed oil by transesterification of the oils with ethanol using potassium hydroxide as a catalyst. In the conversion of the citrus seed oils to alkyl esters (biodiesel), the grape seed oil gave the highest yield of 90.6%, while the tangerine seed oil and orange seed oil gave a yield of 83.1 % and 78.5%, respectively. Fuel properties of the seed oil and its biodiesel were determined. The results showed that orange seed oil had a density of 730 Kg/m 3, a viscosity of 36.5 mm 2 /s, and a pour point of- 14 o C; while its biodiesel fuel had a density of 892 Kg/m 3, a viscosity of 5.60 mm 2 /s, and a pour point of- 25 o C. Grape seed oil had a density of 675 Kg/m 3, a viscosity of 39.5 mm 2 /s, and a pour point of- 12 o C, while its biodiesel fuel had a density of 890 Kg/m 3, a viscosity of 4.80 mm 2 /s, and a pour point of- 22 o C. Tangerine seed oil had an acid value of 1.40 mg/g, a density of 568 Kg/m 3, a viscosity of 37.3 mm 2 /s, and a pour point of- 15 o C, while its biodiesel fuel had an acid value of 0.22 mg/g, a density of 895 Kg/m 3, a viscosity of 5.30 mm 2 /s, and a pour point of- 24 o C.

  13. ©Wilolud Online Journals, 2008. THE NIGERIAN FUEL ENERGY SUPPLY CRISIS AND THE PROPOSED PRIVATE REFINERIES – PROSPECTS AND PROBLEMS

    E-Print Network [OSTI]

    Agwom Sani Z

    Dynamism of the world economy has compelled Nigerians to accept the liberalization of its economy to encourage private sector participation and induce managerial efficiency. This has become very imperative most especially, in the downstream sub-sector of the Nigerian oil and gas industry by the establishment and management of private refineries in view of the persistent fuel energy crisis. An attempt is made here at analyzing the prospects and problems of such refineries that are expected to end the fuel energy crisis which started in the 1970s due to increased demand for petroleum products for rehabilitation and reconstruction after the civil war but later metamorphosed into a hydraheaded monster in the 1980s to date. Efforts towards arresting this crisis by the government through the establishment of more refineries, storage depots and network of distribution pipelines etc achieved a short-term solution due to the abysmal low performance of the refineries and facilities in contrast to increasing demand for petroleum products. It is deduced that the low performance resulted from bad and corrupt management by indigenous technocrats and political leaders as well as vandalization of facilities. Prospects for such investments were identified, as well as some of the problems to content with. This is in order to understand the pros and cons of such investments in view of their capital intensiveness and the need to achieve economic goals that must incorporate environmental and social objectives.

  14. Comparative analysis of Nigerian international oil marketing model (NIOMM) and the models of four selected OPEC members; and a proposed new model for Nigeria

    SciTech Connect (OSTI)

    Udeke, O.O.

    1986-01-01T23:59:59.000Z

    This study demonstrates that NIOMM has deficiencies and, as a result, has affected the progress of Nigeria's political and socio-economic development. One finding is that Nigeria is beset with ineffective planning, lack of marketing expertise, and inadequate marketing strategies. Other findings show that: (1) the Nigerian oil industry (HOI) is suffering from mismanagement stemming from corruption, tribalism, Federal Character Policy, and lack of dedication and patriotism by the Nigerian workers; (2) there is inefficiency in the Nigerian national petroleum corporation (NNPC) but, at the same time, the inefficiency is partly because of the government policies, conflicts, interference by high government officials and politicians, and the enormous size of the oil industry; (3) oil revenues are improperly utilized; (4) neither the multinational oil corporations (MNOCs) nor multinational corporations (MNCs) are assisting the oil producing nations (OPNs) or developing countries (DCs) in their economic development, and MNOCs and MNCs are interested in profit maximization; and (5) MNCs do not transfer the type of technology that meets the needs of DCs, and sometimes the technology creates problems for DCs which ultimately results into conflicts between MNCs and DCs. The inverse of these problems has been a sine qua non for success in the IOMMs of the four OPEC member, especially in Saudi Arabia.

  15. Impact of 3-D seismic data on the Nigerian National Petroleum Corporation/Chevron Nigeria Limited joint venture development drilling program

    SciTech Connect (OSTI)

    Quam, S. (Chevron Nigeria Ltd., Lagos (Nigeria))

    1993-09-01T23:59:59.000Z

    The Nigerian National Petroleum Corporation/Chevron Nigeria Limited joint venture has been acquiring three-dimensional (3-D) seismic data over its concessions since 1984. To date, 1700 km[sup 2] have been recorded and processed at a cumulative cost of US $39 million. During 1991 - 1992, 20 development wells were drilled based directly on new 3-D seismic interpretations. These wells have added 148 million bbl of oil in new recoverable reserves, and to date have added 37,000 bbl/day to the joint venture's production. In addition, the 3-D interpretations have resulted in a sizable inventory of wells for future development drilling. The new 3-D interpretations provided more accurate pictures of fault patterns, fluid contacts, channel trends, stratigraphic continuity, and velocity/amplitude anomalies. In addition, the 3-D data were invaluable in designing low risk, directional well trajectories to tap relatively thin oil legs under large gas caps. Wells often were programmed to hit several objectives at their respective gas/oil contacts, resulting in maximized net oil sand pays and reducing the risk of gas production. In order to do this, directional [open quotes]sharpshooting,[close quotes] accurate depth conversion of the seismic time maps, was critical. By using the 3-D seismic, checkshot, and sonic data to develop a variable velocity space, well-top prognoses within 50 ft at depths of 6,000-10,000 ft were possible, and were key to the success of the program. As the joint venture acreage becomes more mature, development wells will be drilled for smaller numbers of stacked objectives, and sometimes for single sands. Highly accurate 3-D interpretations and depth conversions will become even more critical in order to tap thinner pay zones in a cost-effect manner.

  16. Integrated reservoir management doubles Nigerian field reserves

    SciTech Connect (OSTI)

    Akinlawon, Y.; Nwosu, T.; Satter, A.; Jespersen, R.

    1996-10-01T23:59:59.000Z

    An integrated alliance across disciplines, companies and countries enabled Texaco to conduct a comprehensive reservoir analysis of the North Apoi/Funiwa field in Nigeria. Recommendations implemented in 3 months doubled the book reserves of this mature field. The paper discusses the objectives, the integration of organizations, reservoir analysis, and conclusions. The conclusions made from the integrated study are: (1) 3-D seismic data dramatically improved reservoir description. (2) OOIP is considerably more than the booked values and reserves additions are substantial. (3) Significant value has been added to TOPCON`s assets as a result of teamwork and a multidisciplinary approach to evaluating the reservoirs and optimizing the scenarios for reservoir management. (4) Teamwork and integration of professionals, data, technology and tools was critical to the projects success. (5) The study set an example for effective and expeditious technology transfer and applications. (6) Partnering of TOPCON, DPR, NAPIMS, EPTD and SSI resulted in a quick cycle time and set an excellent example of integration and alliance.

  17. Strengthening the Nigerian Sovereign Investment Authority: A Policy Analysis of the Nigerian Excess Crude Account and the Nigerian Sovereign Investment Authority Act

    E-Print Network [OSTI]

    Ugwuibe, Cynthia

    2012-01-01T23:59:59.000Z

    of instability in the world oil market and to foster prudentthe budget. The world oil market is susceptible to temporaryto improve oil revenue management and achieve its market-

  18. Strengthening the Nigerian Sovereign Investment Authority: A Policy Analysis of the Nigerian Excess Crude Account and the Nigerian Sovereign Investment Authority Act

    E-Print Network [OSTI]

    Ugwuibe, Cynthia

    2012-01-01T23:59:59.000Z

    Savings Authority Oil Investment Corporation of ReserveBrunei Iran Oil Oil Libyan Investment Authority Reserve Fundcurrent and future investments of oil windfalls. Since

  19. Strengthening the Nigerian Sovereign Investment Authority: A Policy Analysis of the Nigerian Excess Crude Account and the Nigerian Sovereign Investment Authority Act

    E-Print Network [OSTI]

    Ugwuibe, Cynthia

    2012-01-01T23:59:59.000Z

    Since international oil prices fluctuate erratically, oilexcess oil revenues when oil prices skyrocket, and tap intoif the current rise in oil prices persists, the manner in

  20. Strengthening the Nigerian Sovereign Investment Authority: A Policy Analysis of the Nigerian Excess Crude Account and the Nigerian Sovereign Investment Authority Act

    E-Print Network [OSTI]

    Ugwuibe, Cynthia

    2012-01-01T23:59:59.000Z

    al. , 2001). Natural resources especially oil are a volatilefact that oil and other forms of natural resources can be aof natural resource commodities especially oil fluctuates,

  1. Strengthening the Nigerian Sovereign Investment Authority: A Policy Analysis of the Nigerian Excess Crude Account and the Nigerian Sovereign Investment Authority Act

    E-Print Network [OSTI]

    Ugwuibe, Cynthia

    2012-01-01T23:59:59.000Z

    New Land Grant Mexico Permanent Fund) Savings* Oil and otherBotswana East Timor Mexico Saudi Arabia Oil Oil State OilSavings Oil and other non-commodity sources New Mexico State

  2. adult nigerian subjects: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the idea of creating a subjectivity classifier that uses lists of subjective nouns learned by bootstrapping algorithms. The goal of our research is to develop a system that can...

  3. adult nigerian population: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The levels of copper content was determined in selected food samples of cereals, meat and fish, egg, vegetables, fruits and nuts, seeds and legumes, tubers and roots and other...

  4. ICI and Penspen in Nigerian and Qatari methanol deals

    SciTech Connect (OSTI)

    Alperowicz, N.

    1992-03-11T23:59:59.000Z

    The U.K. consulting and engineering company Penspen Ltd. (London) has signed a second joint venture agreement in Qatar and has selected the ICI (London) methanol process. The technology will also be used in a world-scale methanol plant in Nigeria that Penspen is helping to set up. Under the first agreement, signed on January 1 with Qatar General Petroleum Corp. (QGPC), a 50/50 venture is being formed to build a $370-million, 2,000-m.t./day methanol plant at Umm Said. ICI will provide its low-pressure technology and help market 75% of the output. Completion is due late 1994.

  5. Operators jumping E and D spending in Nigerian programs

    SciTech Connect (OSTI)

    Not Available

    1992-01-20T23:59:59.000Z

    Nigeria's campaign to increase foreign investment in its petroleum industry and boost oil and gas productive capacity continues to gather steam. Critical to that effort is a continuing push by the government to offer more attractive fiscal and concession terms to private domestic and foreign companies. Nigeria's petroleum ministry has submitted a new draft petroleum policy for government approval. The campaign is getting results, if responses by key foreign operators are any indication. This paper reports that the changing investment climate in Nigeria is attracting more outside financing.

  6. "Hideous architecture" : mimicry, feint and resistance in turn of the century southeastern Nigerian building

    E-Print Network [OSTI]

    Okoye, Ikemefuna Stanley Ifejika

    1994-01-01T23:59:59.000Z

    This dissertation reconstructs the histories of some exceptional, hitherto unstudied buildings, erected in southeastern Nigeria between 1889 and 1939; they are part of a larger group, dispersed over the African Atlantic ...

  7. Effects of drilling fluids on marine bacteria from a Nigerian offshore oilfield

    SciTech Connect (OSTI)

    Okpokwasil, G.C.; Nnubia, C. [Univ. of Prot Harcourt (Nigeria)

    1995-11-01T23:59:59.000Z

    Two marine bacterial isolates from drill mud cuttings obtained from Agbara oilfield, Staphylococcus sp. and Bacillus sp., were cultured aerobically in the presence of varying concentrations (0, 25, 50, and 75 {mu}g/ml) of drilling fluids to determine the effects of concentration of toxicants on their growth. With the exception of Clairsol, Enviromul, and Bariod mineral oil, which had little or no effect, the exponential growth of Bacillus sp. was depressed by all other test chemicals. Additionally, all test chemicals except Clairsol had no effect on lag phase of growth of Bacillus sp. With Staphylococcus sp. the depressive effect on the exponential phase of growth was shown by almost all test chemicals. There was enhancement of both growth rate and generation times of Staphylococcus sp. and decrease of those of Bacillus sp. with increasing concentrations of drilling fluids. These results show that while some drilling fluids may be stimulatory or depressive to bacterial growth, others may be without effect. 23 refs., 6 figs., 3 tabs.

  8. Toxicity of corexit 9527 and Nigerian crude oil in vivo and in vitro

    SciTech Connect (OSTI)

    George, S.; Nelson, G.; Brooks, L. [Environmental Protection Agency, Research Triangle Park, NC (United States)] [and others

    1997-10-01T23:59:59.000Z

    When oil is spilled into aquatic systems, chemical dispersants frequently are applied to enhance emulsification and biological availability. In this study, toxicity of Corexit 9527 (Cx), a widely used dispersant, was evaluated with oil both in vivo and in vitro. Initially, both Cx and oil were bioassayed in a micro-suspension modification of the Salmonella reversion bioassay. Next, rats were dosed 5 weeks with oil, Cx or Cx/oil. Body and tissue weights, urine mutagenicity, and effect on intestinal enzymes and microbiota were determined. Cx (1:1000 dilution) was toxic in the bioassay and oil was negative (TA98 & TA100 +/-S9). Similar results were observed for urinary metabolites. Body and tissue weights were unaffected, but a significant reduction in small intestinal azo reductase (AR) and/or {beta}-glucuronidase (BG) was observed in animals that received Cx, oil, or Cx/oil. Effects on cecal AR were observed in the 3 treatment groups. One week nitroreductase (NR) activity was elevated, and 3 and 5 week BG activities were significantly different from controls. This correspond to an elimination of enterobacteria and enterococci in oil-treated rats and enterobacteria fluctuations in Cx- and Cx/oil-treated animals. Even though treatment of rats with Cx has no direct effect on the production of mutagenic urine metabolites from oil-treated animals, significant changes are observed in intestinal microbiota and their enzymes responsible for promutagen and procarcinogen activation.

  9. Towards a theology of conflict transformation: a study of religious conflict in contemporary Nigerian society 

    E-Print Network [OSTI]

    Akanji, Israel Adelani

    2011-07-01T23:59:59.000Z

    Nigeria, the most populous country in Africa, is bedevilled with various conflicts which have been exacerbated by the multiplicity and diversity which characterize the nation. The country is a multi-ethnic, multicultural, ...

  10. Characterization of selected sorghums for the preparation of ogi, a Nigerian fermented food

    E-Print Network [OSTI]

    Akingbala, John Olusola

    1979-01-01T23:59:59.000Z

    in a Strong-Scott barley pearler containing a carborundum wheel 6 inches in diameter. Then the stocks were sifted on a Tyler Rotap through a number 12 mesh screen for 3 minutes. The "overs" of the number 12 screen were taken as an index of grain...

  11. Carryover of aflatoxin B/sub 1/ in contaminated substrate corn into Nigerian native beer

    SciTech Connect (OSTI)

    Okoye, Z.S.C.

    1986-10-01T23:59:59.000Z

    Aflatoxins, the toxic secondary metabolites of Aspergillus flavus and Asp. parasiticus, constitute a serious food contamination problem in Nigeria and have been detected in the blood of healthy rural blood donors and primary liver cancer patients from the Guinea savannah region where traditionally brewed cereal beer is popular. A recent survey of traditional breweries in the Jos metropolis has shown a high incidence of aflatoxin B/sub 1/ contamination of their products. The purpose of this study was to assess the efficiency of the traditional brewing in destroying aflatoxins in mould-infected substrate grains.

  12. Drowning out the Silence: Nigerian Civil War Literature and the Politics of Gender-Based Violence

    E-Print Network [OSTI]

    Hancock, Lynn

    2012-01-01T23:59:59.000Z

    UNDP). Abuja, Nigeria. Nigeria Human Development Report (Programme (UNDP). Abuja, Nigeria. Akinfolarin, W. A. (and the dearth of books in Nigeria. Publishing Research

  13. From oil shortage to oil glut: simulation of growth prospects in the Nigerian economy

    SciTech Connect (OSTI)

    Olofin, S.; Iyaniwura, J.O.

    1983-11-01T23:59:59.000Z

    During the 1970s, the economy of Nigeria provided one of the most interesting cases of development financed through oil revenue. Between 1970 and 1980, the country's GNP grew at an outstanding rate, but after the transition from oil shortage to oil glut, the economy of Nigeria ran into dramatic financial difficulties, which are now placing major constraints to its development. To investigate the transition from an oil-based economy to a stage characterized by greater diversification of exports and more balanced sectoral growth, a model has been built by the University of Ibadan in Nigeria. The model was developed in association with Project LINK staffing for the future inclusion in the Project. According to the finding presented in the study, the annual growth rate of GDP of Nigeria between 1980 and 1988 will be around 2.5%. To compensate the drop of the foreign-exchange earnings caused by the contraction of oil prices and demand, a vigorous export drive of agricultural products is simulated. 8 references, 7 figures, 4 tables.

  14. Petroleum industry sensitivity and world oil market prices: The Nigerian example

    SciTech Connect (OSTI)

    Kalu, T.Ch.U. [Univ. of Ilorin (Nigeria)

    1995-12-31T23:59:59.000Z

    Most empirical studies have focused on the demand side of energy with little or no attention to the supply side. To deal with this defect, this paper adopts a microanalytic approach to the problem of the individual oil firms to provide a basis for determining the effects of changes in such macro-variables as prices on their operations. However, instead of the familiar econometric approach to energy studies, a goal programming approach is adopted. Using a multinational oil company as a case study, the effects of change in crude oil prices are examined. The results, among other things, support the hypersensitivity of oil companies to changes in economic cycles, the price inelasticity of demand for crude oil in the short run, and a time lag between price change and the time an oil company responds to it. The management and policy implications of the results are also discussed. 28 refs., 3 tabs.

  15. Convex Approaches to Text Summarization

    E-Print Network [OSTI]

    Gawalt, Brian

    2012-01-01T23:59:59.000Z

    obama, reported violence, president, state, new, said, military, mr nigerian, nigerias, africa, kenya, angola, muslim,

  16. Pulmonary function and symptoms of Nigerian workers exposed to carbon black in dry cell battery and tire factories

    SciTech Connect (OSTI)

    Oleru, U.G.; Elegbeleye, O.O.; Enu, C.C.; Olumide, Y.M.

    1983-02-01T23:59:59.000Z

    The pulmonary function and symptoms of 125 workers exposed to carbon black in dry cell battery and tire manufacturing plants were investigated. There was no significant difference in the pulmonary function of the subjects in the two plants. There was good agreement in the symptoms reported in the two different factories: cough with phlegm production, tiredness, chest pain, catarrh, headache, and skin irritation. The symptoms also corroborate those reported in the few studies on the pulmonary effects of carbon black. The suspended particulate levels in the dry cell battery plant ranged from 25 to 34 mg/m/sup 3/ and the subjects with the highest probable exposure level had the most impaired pulmonary function. The pulmonary function of the exposed subjects was significantly lower than that of a control, nonindustrially exposed population. The drop in the lung function from the expected value per year of age was relatively constant for all the study subgroups but the drop per year of duration of employment was more severe in the earlier years of employment. This study has underscored the need for occupational health regulations in the industries of developing countries.

  17. Macro-econometric model of the Nigerian economy: a simulated analysis of oil shocks in a development context

    SciTech Connect (OSTI)

    Usip, E.E.E.

    1984-01-01T23:59:59.000Z

    The precarious position of Nigeria in being a one-resource (oil) based economy in terms of revenue generation has become a major cause of concern for the experts and political pundits. In this study, the author seeks to explore further the empirical basis for this concern in two stages. First, a macro-econometric model of Nigeria was constructed and evaluated. The model highlights the various channels through which the oil sector influences the rest of the economy. Economic theory, econometric techniques, existing fund of knowledge in the practice, computer simulation, and the institutional framework of Nigeria were brought to bear upon the modeling process. In the second stage, the resulting simulation model was used to examine the sensitivity of the economy to the leading sector (oil) as well as the growth potential of Nigeria up to 1986. The crucial question that was addressed is: will the oil sector be able to support a continuing economic growth of Nigeria in the absence of policy initiatives to diversify the revenue base of the economy. Although the empirical findings are hypothetical, they do have far-reaching implications for Nigeria's growth prospects and political stability.

  18. Current Knowledge of Leishmania Vectors in Mexico: How Geographic Distributions of Species Relate to Transmission Areas

    E-Print Network [OSTI]

    Gonzá lez, Camila; Rebollar-Té llez, Eduardo A.; Ibá ñ ez-Bernal, Sergio; Becker-Fauser, Ingeborg; Martí nez-Meyer, Enrique; Peterson, A. Townsend; Sá nchez-Cordero, Ví ctor

    2011-01-01T23:59:59.000Z

    , Lu. shannoni, Lu. panamensis , and Lu. ylephiletor , have recently been found infected with Leishmania mexicana in Campeche. 16, 17 Previous studies in Campeche documented Lu. o. olmeca as infected with Leishmania ; Lu. cruciata was also found... in Campeche (n = 86), Oaxaca (n = 47), and Quintana Roo (n = 40). In contrast, only single sampling localities were available for the states of Coahuila, Chihuahua, and Tamaulipas. The species most commonly obtained were Lu. cruciata (n = 102) and Lu...

  19. Possible republics : tracing the 'entanglements' of race and nation in Afro-Latina/o Caribbean thought and activism, 1870-1930

    E-Print Network [OSTI]

    Fusté, José I.; Fusté, José I.

    2012-01-01T23:59:59.000Z

    Massaquoi of Liberia and a paper by Samuel Johnson theNigerian historian, Samuel Johnson. The St. Thomasian

  20. West African crude production diversifies

    SciTech Connect (OSTI)

    Aalund, L.

    1983-06-01T23:59:59.000Z

    Nigeria, with its seven crude-oil export streams, dominated West African production and accounted for over 70% of the depressed 1.8 million b/d output from the region last year. However, during the 1970s a flurry of new producing fields, primarily off the African coast, diversified production among a number of countries and touched off a wave of oil activity. The Journal takes a close look at the quality of West African oil in this installment of assays on world export crudes. This issue covers, in alphabetical order, Bonny Light (Nigeria) to Espoir (Ivory Coast). A following issue will wrap up West Africa by presenting assays on crudes from Forcados Blend (Nigeria) to Zaire Crude (Zaire).

  1. 1997 Benjamin F. Soares. All rights reserved. No part of the following papers

    E-Print Network [OSTI]

    . AImpact of Deregulation on Bank Performance, Capitalisation, and Competition.@ In Deregulation Industry.@ In Deregulation in the Nigerian Banking Industry: Directions, Challenges, Problems,

  2. Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios

    E-Print Network [OSTI]

    Meininger, Aaron G.

    2012-01-01T23:59:59.000Z

    170 C.4 Natural Gas OLS Regression . . . . . . . . . . . . .Utilization of Nigerian natural gas resources: Potentialsbeing paid to coal and natural gas, and by increasing the

  3. Materials science and engineering mse.mcmaster.ca graduate studies at the department of

    E-Print Network [OSTI]

    Thompson, Michael

    · The Steel Research Centre · The Centre for Automotive Materials and Corrosion. With its reputation Inc., NY Nigerian Oil Co. Nors

  4. ambrette seed oil: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    seed yields and the seed Blumwald, Eduardo 3 ALKALI CATALYSED PRODUCTION OF BIODIESEL FUEL FROM NIGERIAN CITRUS SEEDS OIL CiteSeer Summary: The potential of oil extracted...

  5. Comparative study of selected Brazilian and Nigerian policies to promote the transfer and development of technology: the role of regime and non-regime factors, and some results from the automobile industry, 1967-80

    SciTech Connect (OSTI)

    Gusau, B.H.

    1985-01-01T23:59:59.000Z

    This study is concerned with the policies adopted by Brazil and Nigeria to promote the transfer and development of technology in industry. The objectives are two-fold: (1) to compare and analyze the policies with respect to the automobile industries in the 1967-1980 period; (2) to investigate whether their adoption was solely a function of the different ideological values and issue levels of economic development of the countries, or whether the regimes are solely an expression of the patterns of that development. The study adopted the Comparative Public Policy approach to explore the various hypotheses formulated. The findings showed that Brazil realized more significant results than Nigeria in technology development, while in other areas, such as the curtailment of imports, employment generation, etc., the results are mixed. The study concludes that both regime and industrial development factors influence the variation in the policies, although the regime factor seems to explain more of the variation.

  6. GLiMMPS: Robust statistical model for regulatory variation of alternative splicing using RNA-Seq data

    E-Print Network [OSTI]

    Zhao, Keyan; Lu, Zhi-xiang; Park, Juw; Zhou, Qing; Xing, Yi

    2013-01-01T23:59:59.000Z

    lymphoblastoid B cell lines (LCLs), whose genomic variantsvariation in HapMap LCLs at the whole-gene and/or individualexpression and splicing in LCLs derived from 69 Nigerian [

  7. The Poet and His Inner World: Subjective Experience in the Poetry of Christopher Okigbo and Wole Soyinka

    E-Print Network [OSTI]

    Muduakor, Obi

    1980-01-01T23:59:59.000Z

    TiiE POET AND HIS INNER ~LD: SLBJECTIVE EXPERIENCE IN TiiEpublished in 1965, the Nigerian poet Christopher Okigbo madenevertheless, the labour of the poets who write it. Still ,

  8. The Character of Popular Indigenous Cinema in Nigeria

    E-Print Network [OSTI]

    Okome, Onookome

    1995-01-01T23:59:59.000Z

    269. Ekwuazi, Hyginus. Film In Nigeria. Jos: Nigerian FilmOF POPULAR INDIGENOUS CINEMA IN NIGERIA I Onookome Okome Theindigenous film of Nigeria must be seen and discussed within

  9. asteraceae leaf extract: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    known as the Crofton weed; other common names are eupatory, sticky snakeroot, cat weed, hemp agrimony, sticky agrimony, Mexican Reddy, Gadi VP 17 THE EFFECTS OF A NIGERIAN SPECIE...

  10. acai palm fruit: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tree to the Nigerian Economy CiteSeer Summary: Abstract: Date palm tree is an economic crop which is grown in the arid region of Northern Nigeria from latitude 10 N in the...

  11. Nigeria: World Oil Report 1991

    SciTech Connect (OSTI)

    Not Available

    1991-08-01T23:59:59.000Z

    This paper reports that Middle East events have renewed interest in Nigeria's proven and potentially productive oil basins and fueled an upsurge in exploration and production activity. Increased oil revenues during the Gulf crisis were a bonus that will help pay for projects to boost production. Official goals are to increase production from current levels to 2.2 million bopd by the end of 1991 and 2.5 million bopd by 1995, and to raise reserves to 22 billion bbl by 1995. Shell, the largest operator, will spend $6.6 billion over five years on exploration and production to up its capacity from 1 million bopd to 1.3 million bopd, primarily with a $750-million investment for four new fields in South Forcados permit. Shell also announced reserve estimates of 400 million bbl of crude and 500 Bcf of gas for the Gharan structure onshore in Rivers State north of Yenogoa. Initial discovery was in January 1967, but the field was considered to be gas until Gbaran 4 was drilled in May 1990.

  12. Nigeria steps up action to define and increase its oil reserves

    SciTech Connect (OSTI)

    Page, N.

    1992-01-06T23:59:59.000Z

    This paper reports that within the past 18 months, the Nigerian Ministry of Petroleum Resources has moved aggressively to increase investment in known producing areas and stimulate exploration in frontier regions in order to define and expand the country's reserve base for the start of the 21st century. At industry seminars held in November and December 1991 in Houston, London, and Lagos, the Ministry in association with TGSI-Mabon Geophysical Co. reviewed the Nigerian political and economic climate, recent industry development and leasing activity, deep-water geology and exploration potential, and the probable areas' terms and conditions for a new bidding round to be announced in early 1992.

  13. Foreign Fishery Developments Nigeria Plans Large

    E-Print Network [OSTI]

    Foreign Fishery Developments Nigeria Plans Large Fishing Fleet Expansion Table 1.-Nigerian fishing reported deliveries. Development Program Nigeria's oil exports have enabled its Government to fInance Africa's most ambitious development program. Nigeria has the largest population of any country in Africa

  14. Ofure Isenmila Degree studied

    E-Print Network [OSTI]

    Mottram, Nigel

    diversity. The Environmental Impact Assessment and Pollution and rehabilitation of degraded ecosystem the Environmental Impact Assessment and the Pollution and Rehabilitation of Degraded Ecosystem Modules. What are you at pursuing a career in the Nigerian oil and gas industry with particular interest in Environmental impact

  15. Nigeria to step up tar sands activity

    SciTech Connect (OSTI)

    Not Available

    1987-03-01T23:59:59.000Z

    The Nigerian government has directed its Ministry of Mines, Power and Steel to assume responsibility for the exploration and exploitation of tar sands deposits in Bendel, Ondo and Oyo States. The directive resulted from a survey report by the University of Ife's geological consultancy unit on bituminous sand deposits in the area. The statement said the government was satisfied that there were large commercial quantities of the sands in the three states. The survey had reported that Nigeria could recover between 31 and 40 billion barrels of heavy crude from the tar sand deposits. Exploration for hydrocarbons is currently going on in Anambra and Lake Chad basins as well as the Benue Trough. Apart from the Nigerian National Petroleum Corporation, Shell Petroleum and Gulf Oil have begun exploration activities in the Ondo area. Meanwhile, Nigeria has had to import heavy crude from Venezuela, for processing at the Kaduna refinery.

  16. Aspects of tar sands development in Nigeria

    SciTech Connect (OSTI)

    Adewusi, V.A. (Dept. of Chemical Engineering, Obafemi Awolowo Univ., Ile-Ife (NG))

    1992-07-01T23:59:59.000Z

    Development of Nigerian massive reserves of crude bitumen and associated heavy oil is imminent in view of the impacts that the huge importation of these materials and their products have on the nation's economy, coupled with the depleting reserves of Nigeria and highlights the appropriate production technology options and their environmental implications. The utilization potentials of these resources are also enumerated, as well as the government's role in achieving accelerated, long-term tar sands development in the country.

  17. Public budgeting, public policy, and the politics of resource allocation in Nigeria

    SciTech Connect (OSTI)

    Ugorji, E.C.

    1985-01-01T23:59:59.000Z

    The problem of determining who gets what in terms of allocating the nation's resources has plagued Nigerian leaders since independence. It is in this context that this dissertation is focused on the politics of the federal governments's use of the budget as an effective mechanism for mobilizing and constructively utilizing the nation's human and material resources to improve the general well-being of all segments of the Nigerian society. This study was conducted through direct interviews and discussions with some federal government officials and some Nigerian scholars concerned about the problems of development in Nigeria. From the findings, it is concluded that the federal budget process has not functioned efficiently and effectively as a vehicle for moving the nation forward in the direction of sustained and balanced economic progress. Whereas the above situation can be attributed to some structural deficiencies in the budgetary process, it can also be argued that bribery and corruption, fraud and misuse of public funds by politicians and top government officials, be they civilians or military, have undermined all efforts at using the budget as an instrument for accomplishing development objectives.

  18. Oil and development: The case of agriculture in Nigeria and Algeria

    SciTech Connect (OSTI)

    Bachrach, E.R.

    1988-01-01T23:59:59.000Z

    This thesis explores the relationship between the oil-boom of the 1970s and development outcomes and the prospects in two African OPEC states. The theoretical framework is provided by the political-economy literatures, both domestic and international. The research is carried out as a limited comparative study with a loosely constructed (before-during-after) interrupted time-series design. Algeria's greater success in managing it soil economy suggests further evidence supporting the promise of a mixed political-economy state model. State and societal complexions are identified, with a primarily qualitative methodology, to explain Nigerian and Algerian development outcomes on the heels of the oil decade.

  19. Gas chromatographic determination of pentachlorophenol in human blood and urine

    SciTech Connect (OSTI)

    Atuma, S.S.; Okor, D.I.

    1985-09-01T23:59:59.000Z

    The extraction, identification and quantification of pentachlorophenol (PCP) in human blood and urine are of great importance for monitoring human exposure to this environmental chemical. Although reports abound in the literature on PCP residues, toxicity and environmental fate, there is hardly any information on its existence in the developing tropical countries, particularly in Nigeria. There is therefore the need to survey the status of PCP in Nigerian environment with a view to establishing the potential health hazards resulting from its bioaccumulation. This paper reports a preliminary survey of the residue levels of PCP in human blood and urine of the general population in Bendel State of Nigeria.

  20. Petroleum and structural change in a developing society: the case of Nigeria

    SciTech Connect (OSTI)

    Olayiwola, P.O.

    1985-01-01T23:59:59.000Z

    This study of Nigeria provides a multidimensional analysis of development. The Nigerian development experience is considered as the interrelation of: (a) economic development paradigm which guided development thinking; (b) the national planning model and apparatus employed; (c) the ideology of nationalism; and (d) the internal and external factors in Nigeria's environment that combined to influence its development strategies. As a society, Nigeria has undergone profound changes over the period of the last 25 years. It was transformed from a primarily agricultural society to an industrializing one. A key source of this change has been the emergence of the petroleum economy. Nigeria's GDP grew an extraordinary 81% per annum on average between 1960 and 1980. Yet, the aggregate performance of the petroleum economy was far better, adding to Nigerian economic wealth at an average rate of 7400% per annum. Judged on these terms, Nigeria's overall economic performance from independence to 1980 was spectacular; the performance of its petroleum economy astounding. Despite this performance, the structure of Nigeria's political economy is nearly the same as it was at independence. It remains one in which economic life depends critically upon world-market conditions and the level of trade with developed economies.

  1. Biotechnology research in Nigeria: A socio-economic analysis of the organication of agricultural research system's response to biotechnology

    SciTech Connect (OSTI)

    Duru, G.C.

    1988-01-01T23:59:59.000Z

    Many agricultural development experts and social scientists argue that a lack of appropriate technology was a limiting factor in the efforts by developing countries to expand their agricultural productivity. Biotechnology is now advanced as a technology that could meet these needs. Agricultural and social scientists maintain that the new biotechnology, if realistically applied, could assist a developing nation such as Nigeria to solve its agricultural problems. But one concern is the private character of biotechnology which limits its transferability to the LDCs. This situation will impose unusual constraints on national agricultural development programs and increase dependence if national research capability is weak. The basic finding of this field research was that the Nigerian national agricultural research system was weak, which meant that the potentials and promises of biotechnology will elude the country's desire to improve its agriculture in the immediate future. The primary weakness rested in inadequate funding and infrastructural deficiencies.

  2. History of energy sources and their utilization in Nigeria

    SciTech Connect (OSTI)

    Ogunsola, O.I. (Dept. of Petroleum Engineering, Univ. of Port Harcourt, Port Harcourt (NG))

    1990-01-01T23:59:59.000Z

    Nigeria, a major oil producer, is rich in other energy sources. These include wood, coal, gas, tar sands, and hydro power. Although oil has been the most popular, some other energy sources have a longer history. This article discusses the historical trends in the production and utilization of Nigerian energy sources. Wood has the longest history. However,its utilization was limited to domestic cooking. Imported coal was first used in 1896, but it was not discovered in Nigeria until 1909 and was first produced in 1916. Although oil exploration started in 1901, it was first discovered in commercial quantity in 1956 and produced in 1958. Oil thereafter took over the energy scene from coal until 1969, when hydro energy was first produced. Energy consumption has been mainly from hydro. Tar sands account for about 55% of total proven non-renewable reserves.

  3. The Impact of Information Technology in Nigeria's Banking Industry

    E-Print Network [OSTI]

    Oluwatolani, Oluwagbemi; Philip, Achimugu

    2011-01-01T23:59:59.000Z

    Today, information technology (IT) has become a key element in economic development and a backbone of knowledge-based economies in terms of operations, quality delivery of services and productivity of services. Therefore, taking advantage of information technologies (IT) is an increasing challenge for developing countries. There is now growing evidence that Knowledge-driven innovation is a decisive factor in the competitiveness of nations, industries, organizations and firms. Organizations like the banking sector have benefited substantially from e-banking, which is one among the IT applications for strengthening the competitiveness. This paper presents the current trend in the application of IT in the banking industries in Nigeria and gives an insight into how quality banking has been enhanced via IT. The paper further reveals that the deployment of IT facilities in the Nigerian Banking industry has brought about fundamental changes in the content and quality of banking business in the country. This analysis...

  4. Mobil plans methanol plant in Nigeria

    SciTech Connect (OSTI)

    Alperowicz, N.

    1992-08-12T23:59:59.000Z

    Mobil Chemical (Houston) is in discussions with Nigerian National Petroleum Corp. (NNPC; Lagos) on a joint venture methanol plant at Port Harcourt, Nigeria. The U.S. firm has invited process owners to submit proposals for a 1-million m.t./year unit and hopes to select the technology by the end of this year. Three proposals have been submitted: Lurgi, offering its own low-pressure process; John Brown/Davy, with the ICI process; and M.W. Kellogg, proposing its own technology. Shareholding in the joint venture is yet to be decided, but it is likely to be a 50/50 tie-up. Marketing of Mobil's share or of the entire tonnage would be handled by Mobil Petrochemical International (Brussels). The plant could be onstream in late 1996.

  5. AAR in concrete of Asejire spillway (OYO state - Nigeria)

    SciTech Connect (OSTI)

    Lamaudiere, J.P.; Spaeti, F. [SGI INGENIERIE, Cointrin-Geneva (Switzerland)

    1995-12-31T23:59:59.000Z

    The Asejire dam at Ibadan, Nigeria was constructed in the late sixties for the purpose of providing water for the city of Ibadan (presently about 4,5 million inhabitants). It is located on the Oshun river approximately fifteen miles from the city. In 1982 cracks were observed on the wing walls and although these continued to develop, no attempt was made at that time to investigate their causes and no repair was carried out. In 1989 the SGI ENGINEERING Group of Geneva, Switzerland was appointed as the consultant for the complete refurbishment of the Asejire water scheme. The consortium Degremont-Poat-Clemessy was awarded the contract for the project. The African Development Bank and the Nigerian Government have provided the loan to finance the project.

  6. Oyo-first field Deepwater Nigeria?

    SciTech Connect (OSTI)

    Lilletveit, R.; Nelson, L. [The Statoil and BP Alliance, Stavanger (Norway); Osahon, G. [Allied Energy Resources (Nig) Ltd., Lagos (Nigeria)

    1996-08-01T23:59:59.000Z

    The Oyo-1 well was drilled in 3Q95 in OPL 210. The partners in the block are Allied Energy (Operator) and the Statoil and BP Alliance. This well was the first well drilled in Deepwater Nigeria and is a reported hydrocarbon discovery. Although the well was within the Niger Delta depositional system, the deepwater play types drilled were quite different than anything previously tested on the Nigerian shelf or onshore. One year on, some of the questions to be asked are: (1) What did Oyo-1 discover? (2) What has been done to establish the commerciality, or otherwise, of the hydrocarbon pools encountered? (3) What impact does this discovery have on other prospects identified in the deepwater area? The answer to these questions will help to identify whether a new hydrocarbon province in the deepwater Nigeria area can be developed, or not.

  7. Planning implications of energy research in Nigeria

    SciTech Connect (OSTI)

    Osotimehin, S.O.A.; Benjamin, N.R.D.; Sanni, S.A.

    1980-12-01T23:59:59.000Z

    A survey of projects in research institutions and major public energy organizations was undertaken with a view to determining to what extent energy research activities are in consonance with national research objectives. Such a survey is also useful in developing an appropriate energy research policy for Nigeria. It appears that energy R and D efforts are concentrated in the area of alternative energy resources; this accounts for 66% of the total projects. Most of the local efforts are duplication of international research efforts. Even though the demand for energy research is well defined, the absence of proper coordination and adequate policy instruments have resulted in the unattainment of the research goals of the energy sector. Thus, the arguement adduced by some investigators that lack of demand for research is the main obstacle for designing and implementing a relevant science policy in a developing country does not hold for Nigerian conditions.

  8. Africa: It's good news, bad news - again

    SciTech Connect (OSTI)

    Not Available

    1986-08-01T23:59:59.000Z

    This article presents the outlook for African petroleum. Observations include: Nigerian oil revenues will be $6-7 billion this year, down 50% from '84; Egyptian drillers are still going strong in the Western Desert and Gulf of Suez; Algeria is looking for natural gas buyers, and they have plenty of gas to sell-cheap; Even with new petroleum legislation, Tunisian production and reserves are falling; Libya's bozo leader is feeling the effects of falling oil revenues and falling bombs; Angola continues as a hot spot of activity with 42 successful oil strikes last year; Crude production jumped 29% in Cameroun last year with three new fields onstream; Congo is another West African winner due to major commitments by Elf and Agip.

  9. Sequence stratigraphic framework of Neogene strata in offshore Nigeria

    SciTech Connect (OSTI)

    Pacht, J.A. [Seis Strat Services, Inc., Sugar Land, TX (United States); Bowen, B.E.; Hall, D.J. [Excalibur Consulting, Houston, TX (United States)] [and others

    1996-08-01T23:59:59.000Z

    The western portion of the Nigerian continental margin (Dahomey Basin) exhibits stable to moderately unstable progradation. Systems tracts are similar to those described by Vail for stable progradational margins. In contrast, strata off the central and eastern portions of the Nigerian coast (Niger Delta Complex) exhibit highly unstable progradation, and systems tracts are similar to those in Neogene strata of the offshore Gulf of Mexico. Lowstand basin floor fans in both areas are defined by a well-developed upper reflection. This reflection downlaps along the sequence boundary or abuts against the downthrown side of a growth fault surface. Most lower lowstand (slope fan) strata exhibit discontinuous to semi-continuous subparallel reflections. However, this systems tract also contains channel complexes characterized by chaotic bedding with small bright spots and less common large channels, which exhibit concave-upward reflections. In the western portion of the study area, lower lowstand deposits commonly pinch out on the slope. Deposition occurred largely from point sources. In contrast, contemporaneous shallow-water facies are developed in lower lowstand systems tracts in the Niger Delta Complex. Deposition occurred along a line source. Large amplitude anomalies in the upper lowstand (prograding wedge) suggest well-developed sheet sands occur in shallow-water and deep-water in the Niger Delta complex. However, in the Dahomey Basin there is little evidence of deep-water sands in this interval. The transgressive and highstand systems tracts are usually very thin in outer shelf to basin floor strata in both areas. Both the Dahomey Basin and Niger Delta Complex exhibit different stratigraphic geometries, and therefore, require different exploration strategies.

  10. Oil and gas developments in central and southern Africa in 1987

    SciTech Connect (OSTI)

    Hartman, J.B.; Walker, T.L.

    1988-10-01T23:59:59.000Z

    Significant rightholding changes took place in central and southern Africa during 1987. Angola, Benin, Congo, Gabon, Ghana, Guinea, Guinea Bissau, Mauritania, Seychelles, Somali Republic, Tanzania, Zaire, and Zambia announced awards or acreage open for bidding. Decreases in exploratory rightholdings occurred in Cameroon, Congo, Cote d'Ivoire, Equatorial Guinea, Gabon, Kenya, Namibia, South Africa, and Tanzania. More wells and greater footage were drilled in 1987 than in 1986. Total wells increased by 18% as 254 wells were completed compared to 217 in 1986. Footage drilled during the year increased by 46% as about 1.9 million ft were drilled compared to about 1.3 million ft in 1986. The success rate for exploration wells in 1987 improved slightly to 36% compared to 34% in 1986. Significant discoveries were made in Nigeria, Angola, Congo, and Gabon. Seismic acquisition in 1987 was the major geophysical activity during the year. Total oil production in 1987 was 773 million bbl (about 2.1 million b/d), a decrease of 7%. The decrease is mostly due to a 14% drop in Nigerian production, which comprises 60% of total regional production. The production share of OPEC countries (Nigeria and Gabon) versus non-OPEC countries of 67% remained unchanged from 1986. 24 figs., 5 tabs.

  11. Niger delta deepwater region petroleum potential assessment

    SciTech Connect (OSTI)

    Thomas, D. [Thomas and Associates, Hastings (United Kingdom)

    1995-12-18T23:59:59.000Z

    On behalf of the Nigerian Ministry of Petroleum and Natural Resources some 23,000 km of high quality 192 channel, 96 fold seismic, and associated gravity and magnetic data were acquired by TGSI-Mabon Geophysical Co. and made available to the industry in 1991. These data were collected over all deepwater blocks in conjunction with the planned 1993 license round. Later, during 1993 and 1994 TGSI with Mabon Ltd. and Stratum Petroleum Services extended the program onto the shelf (7,000 km) and into the ultra deepwater areas (6,400 km), making possible modern studies of the entire offshore delta complex. In assessing the petroleum potential of an undrilled region, it is useful to refer to analogous basins or provinces already with histories of hydrocarbon exploration and discovery. With this in mind, and using limited data from the already drilled areas of Nigeria offshore, the adjacent West Africa salt basin and Brazil in particular, an attempt is made to discuss the hydrocarbon habitat of the undrilled Niger delta deepwater offshore sedimentary sequences.

  12. A study of coal production in Nigeria

    SciTech Connect (OSTI)

    Akarakiri, J.B.; Afonja, A.A.; Okejiri, E.C. (Obafemi Awolowo Univ., Lle-Lfe (Nigeria))

    1991-01-01T23:59:59.000Z

    The Nigerian coal industry was studied. The focus was on the problems which have caused low production output of coal. More specifically, the study examined the present techniques of coal production, the causes of low production of coal, the coal production policy as it affected this study, and proposed policy measures to address the findings. It was discovered that some of the limiting factors to coal production in Nigeria could be attributed to the lack of the following: (i) clear and specific production-demand targets set for coal in Nigeria; (ii) adequate technological capability to mechanize coal mining operations in Nigeria; (iii) venture capital to invest in coal production; (iv) poor infrastructural facilities for coal production such as mining, storage, transportation, etc. It was also discovered that the dissatisfaction of the miners with their conditions of service influenced production capacity negatively. These findings point to the reality that coal is unlikely to play a major role in the country's energy equation in the near future unless serious efforts are made to address the above issues.

  13. The application of seismic stratigraphic methods on exploration 3D seismic data to define a reservoir model in OPL 210, Deepwater Nigeria

    SciTech Connect (OSTI)

    Ragnhild, L.; Ventris, P. [Statoil and BP Alliance, Stavanger (Norway); Osahon, G. [Allied Energy Resources (Nig) Ltd., Lagos (Nigeria)

    1995-08-01T23:59:59.000Z

    OPL 210 lies in deepwater on the northwestern flank of the Niger Delta. The partners in this block are Allied Energy and The Statoil and BP Alliance. The license has a 5 year initial exploration phase and carries a 2 well commitment. At present the database comprises a 1 x 1 km grid of 2D seismic across the block, and 450 sq. km of 3D in an area of special interest. A larger 3D survey is planned for 1995. Little is known about the reservoir in the deep water, but we expect our main target to be ponded slope and basin turbidites. As such the bulk of the shelf well data available has little or no relevance to the play type likely to be encountered. Prior to drilling, seismic stratigraphy has been one of several methods used to generate a consistent predictive reservoir model. The excellent quality and high resolution of the 3D data have allowed identification and detailed description of several distinctive seismic facies. These facies are described in terms of their internal geometries and stacking patterns. The geometries are then interpreted based on a knowledge of depositional processes from analog slope settings. This enables a predictive model to be constructed for the distribution of reservoir within the observed facies. These predictions will be tested by one of the first wells drilled in the Nigerian deepwater in mid 1995.

  14. Determination of the total level of nitrosamines in select consumer products in Lagos area of Nigeria

    SciTech Connect (OSTI)

    Coker, H.A.B.; Thomas, A.E.; Akintonwa, A. (Univ. of Lagos (Nigeria))

    1991-11-01T23:59:59.000Z

    For some time there has been a considerable interest and growing concern in the extent of contamination of food items by N-nitrosamines because of the known carcinogenicity and mutagenicity of these compounds. Nitrosamines can be derived from the interaction of organic secondary and tertiary amines with nitrite, nitrate under reducing conditions, low pH values or nitrous gases. In Nigeria, the present harsh economic conditions have somewhat influenced the emergence of different kinds of socioeconomic attitude in Nigerians. There is now high incidence of adulteration of many consumer products. Faking of assorted consumables and pharmaceuticals, notably drugs, is a common feature, all in attempt to cut corners. It is a common practice amongst the local people to use certain chemicals as preservatives, colorants and flavorants without taking cognizance of the long-term health and toxicological hazards posed to the citizenry by these foreign agents. Recent work in the authors' laboratory had shown the presence of N-nitrosamines in some consumer products and it was therefore thought that a more thorough investigation and survey of as many foods and drinks as possible in the Lagos metropolis for contamination by nitrosamines might present a more revealing picture.

  15. Environmental risk management and preparations for the first deep water well in Nigeria

    SciTech Connect (OSTI)

    Berger, F.

    1996-12-31T23:59:59.000Z

    Statoil is among the leaders in protecting health, environment and safety in all aspects of the business. The evaluations of business opportunities and development of blocks opened by authorities for petroleum exploration, are assessed in accordance with the goals for environmental protection. Progressive improvement of environmental performance is secured through proper environmental risk management. In 1995, Statoil, the technical operator on Block 210 off the Nigerian coast, was the first company to drill in deep waters in this area. An exploration well was drilled in a water depth of about 320 meters. The drilling preparations included environmental assessment, drillers Hazop, oil spill drift calculations, oil spill response plans and environmental risk analysis. In the environmental preparations for the well, Statoil adhered to local and national government legislation, as well as to international guidelines and company standards. Special attention was paid to the environmental sensitivity of potentially affected areas. Statoil co-operated with experienced local companies, with the authorities and other international and national oil companies. This being the first deep water well offshore Nigeria, it was a challenge to co-operate with other operators in the area. The preparations that were carried out, will set the standard for future environmental work in the area. Co-operation difficulties in the beginning were turned positively into a attitude to the environmental challenge.

  16. Sedimentation and tectonics in the southern Bida Basin, Nigeria: depositional response to varying tectonic context

    SciTech Connect (OSTI)

    Braide, S.P. (Federal Univ. of Technology, Minna (Nigeria))

    1990-05-01T23:59:59.000Z

    The Upper Cretaceous Bida basin of central Nigeria is sandwiched between the Precambrian schist belts of the Northern Nigerian massif and the West African craton. Of interest is the southern part of the basin, which developed in continental settings, because the facies architecture of the sedimentary fill suggests a close relation between sedimentation dynamics and basin margin tectonics. This relationship is significant to an understanding of the basin's origin, which has been controversial. A simple sag and rift origin has been suggested, and consequently dominated the negative thinking on the hydrocarbon prospects of the basin which were considered poor. This detailed study of the facies indicates rapid basin-wide changes from various alluvial fan facies through flood-basin and deltaic facies to lacustrine facies. Paleogeographic reconstruction suggests lacustrine environments were widespread and elongate. Lacustrine environments occurred at the basin's axis and close to the margins. This suggests the depocenter must have migrated during the basin's depositional history and subsided rapidly to accommodate the 3.5-km-thick sedimentary fill. Although distinguishing pull-apart basins from rift basins, based solely on sedimentologic grounds, may be difficult, the temporal migration of the depocenter, as well as the basin architecture of upward coarsening cyclicity, show a strong tectonic and structural overprint that suggests a tectonic framework for the Southern Bida basin similar in origin to a pull-apart basin.

  17. The use of exploration 3D seismic data to optimise oil exploration in OPL 210 deepwater, Nigeria

    SciTech Connect (OSTI)

    Nelson, L.C.; Lilletveit, R.; Sandvoll, T. [Statoil and BP Alliance, Stavanger (Norway)] [and others

    1995-08-01T23:59:59.000Z

    Allied Energy and the Statoil and BP Alliance are currently partners in the OPL 210 license, in deepwater Nigeria. The license has a 5 year initial exploration phase which carries a two well commitment. To optimize the location of these wells in this challenging and costly drilling environment the partnership has decided to acquire extensive exploration 3D seismic data within the block. Interpretation of the first of two planned 3D surveys has led to a much clearer understanding of: (a) The structural segmentation of the prospect and thus a clearer idea of the likely hydrocarbon pool size. (b) The distribution of amplitude anomalies and thus, hopefully, a superior understanding of reservoir distribution and hydrocarbons. Here the limiting factor is clearly the lack of deepwater geophysical calibration, due to the absence of wells. Consequently, conclusions at this stage, are qualitative either than quantative. Combined with detailed seismic stratigraphic and high tech geophysical analysis, these two aspects will assist in the highgrading of segments in the prospect, prior to final decisions on the well locations. The first well, planned for 1995, will be one of the first wells drilled in the Nigerian deepwater area. Examples of both 2D and 3D data will be used to demonstrate the above and some of the first well results will be integrated into our interpretation to highlight how some of our perceptions may have changed.

  18. Biodiesel as an Alternative Energy Resource in Southwest Nigeria

    E-Print Network [OSTI]

    Ajide O. O

    The Nigerian state faces unique issues that may provide an opportunity for rural economic growth. One of such is that major urban areas in the southwest of the country are beginning to have population increase and hence air quality problems that will require actions to reduce sources of pollution. One major pollution source is from exhaust emissions from cars and trucks. The use of alternative fuel sources such as biodiesel can make a significant reduction in certain exhaust emissions thus reducing pollution and improving air quality. The opportunity for economic growth in a single product economy like ours could lie in the processing of soybean oil and other suitable feedstocks produced within the country into biodiesel. The new fuel can be used by vehicles traversing the country thus reduce air pollution and providing another market for agricultural feedstocks while creating a value added market for animal fats and spent oils from industrial facilities. The benefits of biodiesel go far beyond the clean burning nature of the product. Bio diesel is a renewable resource helping to reduce the dependence of the economy on limited resources and imports, create a market for farmers and reduce the amount of waste oil, fat and grease being dumped into landfills and sewers.

  19. Material flows of mobile phones and accessories in Nigeria: Environmental implications and sound end-of-life management options

    SciTech Connect (OSTI)

    Osibanjo, Oladele [Department of Chemistry, University of Ibadan, Ibadan, Oyo State (Nigeria)], E-mail: osibanjo@baselnigeria.org; Nnorom, Innocent Chidi [Department of Industrial Chemistry, Abia State University Uturu (Nigeria)

    2008-02-15T23:59:59.000Z

    Presently, Nigeria is one of the fastest growing Telecom markets in the world. The country's teledensity increased from a mere 0.4 in 1999 to 10 in 2005 following the liberalization of the Telecom sector in 2001. More than 25 million new digital mobile lines have been connected by June 2006. Large quantities of mobile phones and accessories including secondhand and remanufactured products are being imported to meet the pent-up demand. This improvement in mobile telecom services resulted in the preference of mobile telecom services to fixed lines. Consequently, the contribution of fixed lines decreased from about 95% in year 2000 to less than 10% in March 2005. This phenomenal progress in information technology has resulted in the generation of large quantities of electronic waste (e-waste) in the country. Abandoned fixed line telephone sets estimated at 120,000 units are either disposed or stockpiled. Increasing quantities of waste mobile phones estimated at 8 million units by 2007, and accessories will be generated. With no material recovery facility for e-waste and/or appropriate solid waste management infrastructure in place, these waste materials end up in open dumps and unlined landfills. These practices create the potential for the release of toxic metals and halocarbons from batteries, printed wiring boards, liquid crystal display and plastic housing units. This paper presents an overview of the developments in the Nigerian Telecom sector, the material in-flow of mobile phones, and the implications of the management practices for wastes from the Telecom sector in the country.