{"title":"Meta-Analysis of Penetration Rate by Using Empirical Correlations","authors":"Mohamed Lamoj","doi":"10.54536/ajenr.v1i1.968","DOIUrl":"https://doi.org/10.54536/ajenr.v1i1.968","url":null,"abstract":"The rate of penetration (ROP) is one of the most important factors in improving drilling efficiency, is a measure of the speed or the progress of the drill bit when it drills subsurface formation. The study will be conducted with the input data sets of ROP, WOB, RPM, and all drilling data provided. To maximize the accuracy. In this paper, i collected data related to the rate of penetration from three wells in three different fields in Libya, and these fields are (Al-Sarir “the largest field in North Africa” - Amal field - Al-Sharara field). In the second stage, we will build an ROP model to compare the results of the rate of penetration in each well and each field. Finally, we make a recommendation on the best equation for each field, which gives results that are close to reality To be used to predict the rate of penetration in the future.","PeriodicalId":235456,"journal":{"name":"American Journal of Energy and Natural Resources","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114332094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Resource Use Efficiency Among Urban Sudano-Sahelian Dairy Farmers in Maiduguri Metropolis, Borno State, Nigeria","authors":"S. Jibrin, I. M. Ali, B. A. Baba","doi":"10.54536/ajenr.v1i1.783","DOIUrl":"https://doi.org/10.54536/ajenr.v1i1.783","url":null,"abstract":"The study analyzes Resource Use Efficiency among Urban Sudano-sahelian Dairy Farmers in Maiduguri metropolis area of Borno State, Nigeria. Data were collected using structured questionnaire. Two stage random sampling techniquewas used for the study. Ten herds were randomly selected from 1122 registered herds as primary sampling unit for the study. The second stage consisted of proportionate random sampling of 120 dairy farmers in the primary sampling unit. Descriptive and inferential statistics were used to analyzethe socioeconomic characteristics and quantities of inputs and outputs of the dairy farmers. Stochastic frontier production function was employed to analyze the determinants of dairy production. The study concluded that production resources in small scale dairy farm such as feed and veterinary drugs/vaccines were inefficiently utilized, while labour and landwere over-utilized. The optimal use of resources in dairy production suggests quantities of inputs level under-utilized should be reduced to optimal level for increased dairy production","PeriodicalId":235456,"journal":{"name":"American Journal of Energy and Natural Resources","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122114325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mekjele Raïssa Matho, Laila Tidjani Haoua, Kenfack Joseph
{"title":"Technical-Economic-Institutional Diagram of a Micro-Hydroelectric Power Station in Electrified Areas: Case Study in the Lingang-Foto Site of Cameroon","authors":"Mekjele Raïssa Matho, Laila Tidjani Haoua, Kenfack Joseph","doi":"10.54536/ajenr.v1i1.721","DOIUrl":"https://doi.org/10.54536/ajenr.v1i1.721","url":null,"abstract":"Access to electricity, reliable energy supply, and environmental protection are key elements that support economic development around the world. In most of Sub-Saharan African countries, the production deficit is a key issue. In addition, the network is made of long distance power lines, leading to huge voltage drops and frequent power cuts in remote electrified areas. Most of these areas offer a wealth of micro hydro power potential. It hence happens that the development of such project in an environment not prepared should address many issues from the technical, the economic and the institutional point of view. The aim of this paper is to examine how we could contribute to the design and development of such a project while taking into account the related constraints. From the findings and the literature review, we have suggested for each core aspect how we might overcome some difficulties. Given the similarity of the network architecture in remote areas in Africa, we have focused on one 148 kW case study in Cameroon to illustrate the implementation of the results. We got a 6.5$cents/kWh cost-effective project from an initial investment of 480 509USD with the need to use robust and simple equipment and the need to adjust the regulations. Since power cut is harmful and a hence issue for a grid connected plant, we have also designed an architecture to address this issue of load shedding from the grid.","PeriodicalId":235456,"journal":{"name":"American Journal of Energy and Natural Resources","volume":"20 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130852416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Laboratory and Theoretical investigations of Petroleum Reservoir Fluid Properties","authors":"Mohamed Lamoj","doi":"10.54536/ajenr.v1i1.636","DOIUrl":"https://doi.org/10.54536/ajenr.v1i1.636","url":null,"abstract":"Understanding the Pressure-Volume-Temperature (PVT) properties is very important to many kinds of petroleum determinations like calculations of reservoir fluid properties; expect the future performance, selection of enhanced oil recovery methods, and for production facilities design. Models for expecting reservoir fluid properties has been increased attention during last decade by knowing reservoir pressure and temperature, oil API gravity, and gas gravity. In general, PVT properties are obtained from laboratory experiments but in some cases In this study, complete PVT lab experiments were done and evaluated the most frequently used empirical black oil PVT correlations for application in the Middle East. Empirical PVT Correlations for the Middle East crude oil was compared as a function of commonly available PVT data. Correlations compared for: Bubble point pressure, solution gas oil ratio, oil formation volume factor, oil density, and oil viscosity. After evaluating the Empirical correlations, the crude sample was characterized using different EOS to arrive at one EOS model that accurately describes the PVT behavior of crude oil produced. The multi-sample characterization method is used to arrive at one consistent model for crude oil for the whole reservoir. The fluid sample is first analyzed for consistency to ensure that they are representative of oil produced, then it is used to obtain parameters for EOS model. The tuning procedure for the EOS is done systematically by matching the volumetric and phase behavior results with laboratory results. Results showed that some correlations give good results in PVT properties compared to the laboratory and can be used with Libyan oil, while some give a high percentage of error.","PeriodicalId":235456,"journal":{"name":"American Journal of Energy and Natural Resources","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132437497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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