Exploratory data analysis using API gravity and V and Ni contents to determine the origins of crude oil samples from petroleum fields in the Espírito Santo Basin (Brazil)

Vieira, Luiza Valli; Rainha, Karla Pereira; Castro, Eustáquio Vinícius Ribeiro de; Filgueiras, Paulo R.; Carneiro, Maria Tereza Weitzel Dias; Brandão, Geisamanda Pedrini

doi:10.1016/j.microc.2015.07.011

Cited by 25 publications

(10 citation statements)

References 41 publications

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“…The presence of V and Ni seems to be related to the specific industrial processes of the past, because they represent the main contaminants originating from oil activities or oil spills, recognized to cause detrimental effects to living organisms [59]. Ni and V are available in the majority of crude oil sources (generally at much higher levels than any other metal); hence, they can be indicators of crude oil pollution [60]. Nevertheless, the area is also subjected to intense agricultural exploitation, with several greenhouses; thus, it suffered a repeated use over time of substances such as herbicides and pesticides.…”

Section: Discussionmentioning

confidence: 99%

Trace Element Bioaccumulation in Stone Curlew (Burhinus oedicnemus, Linnaeus, 1758): A Case Study from Sicily (Italy)

Copat

Ferrante

Hernout

et al. 2020

IJMS

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The study aimed to highlight the degree of trace element contamination along three sites of Sicily: the Magnisi peninsula (MP), located in proximity to the Augusta–Priolo–Melilli petrochemical plant; the Ragusa agro-ecosystem (RA), characterized by a rural landscape; and the Gela plain (GP), characterized by intensive agriculture and a disused petrochemical plant. We collected biological samples (abraded back feathers and blood) of the Stone Curlew (Burhinus oedicnemus Linnaeus, 1758) as well as soil samples to determine the trace elements concentrations of As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Zn, Se and V using ICP-MS analysis. The results found for the three sites show different trends of accumulation, which depend on the different management and geological characteristics of the areas. The Gela plain and Magnisi peninsula showed a higher degree of contamination (As, Co, Cu, Mn and Se for the Gela plain; Pb and Hg for the Magnisi peninsula). Nevertheless, no critical values were found for either the environment—if the results are compared with the legal limits fixed by the Legislative Decree No. 152/2006, approving the Code on the Environment—or for living organisms—if the results are compared with the toxicological thresholds for birds, especially if the short-term exposure results from the blood values are considered. Only the Se levels in animal blood from the RA and GP were found slightly higher than the minimum level required in bird diets. The positive scenario can be attributed on the one hand to the interruptions of emissions of the Gela refinery around 5 years ago, and on the other hand to the more intense and strict controls that are implemented in the area surrounding the petrochemical pole of Augusta–Priolo–Melilli.

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Section: Discussionmentioning

confidence: 99%

Trace Element Bioaccumulation in Stone Curlew (Burhinus oedicnemus, Linnaeus, 1758): A Case Study from Sicily (Italy)

Copat

Ferrante

Hernout

et al. 2020

IJMS

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“…The Ni and V concentrations within crude oils from each well vary significantly; however, the V/Ni ratios are similar because some of the processes that petroleum undergoes, such as migration, thermal alteration, deasphalting, biodegradation and washing water, can alter the individual concentrations of each element. However, the V/Ni ratio is constant because the organometallic compounds in the crude oil are structurally similar and undergo the same processes (Galarraga et al, ; Vieira et al, ). In particular, oils of marine origin usually have V/Ni greater than 1, and those of terrestrial origin have V/Ni less than 1 (Lewan, ; Evdokimov, ; Akinlua et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Crude oil is a complex mixture of hydrocarbons and also contains heteronuclear compounds, emulsified water and minerals, and some of them also have the ability to bind metals (Vieira et al, 2016). Numerous studies (Lewan and Maynard, 1982;Hitchon and Filby, 1984;Lewan, 1984;Ellrich et al, 1985;Curiale, 1987;Barwise, 1990;Oluwole et al, 1993;Filby, 1994;López et al, 1998;Akinlua et al, 2007Akinlua et al, , 2008Akinlua et al, , 2015 have indicated that the concentration and distribution of trace elements in crude oils provide not only vital information for the origin and maturation of petroleum as well as depositional environment of its source rocks but also a potential tool for oil-oil and/or oil-source correlation.…”

Section: Introductionmentioning

confidence: 99%

Trace and rare earth element geochemistry of crude oils and their coexisting water from the Jiyuan Area of the Ordos Basin, N China

et al. 2017

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The concentration of trace and rare earth elements in 22 crude oil and five oilfield water samples, collected from Triassic Yanchang Formation and Jurassic Yanan Formation reservoirs in the Jiyuan Area of Ordos Basin, N China, was determined using inductively coupled plasma mass spectrometry (ICP-MS) for the first time. The oil samples were analysed to classify the oils into family and to determine the origin and depositional environment of organic matter that yield the oils using trace elements. The REE chondrite-normalized distribution patterns of the crude oils show light rare earth element (LREE) enrichment and right-oblique curves. These patterns could be divided into two distinct types that were consistent with that of the upper continental crust (UCC) and lower continental crust (LCC) characterizing by negative Eu anomalies and positive Eu anomalies, respectively. The REE concentrations in coexisting water samples are less than those in crude oils by a factor of ten. Cluster analysis also classified the oil samples from the Ordos Basin into two main groups. Integrated analysis of Co/Ni, V/Ni and V/ (V + Ni) values suggests that the organic matter have more terrigenous source input and the palaeoenvironment was anoxic and slightly oxic conditions. This study differs from previous studies by using trace element analyses of crude oils to constrain oil-source rock correlation. The results show that most of the crude oils in north Jiyuan area were derived from Chang 7 mudstones while those from Hongde area may be contributed by Chang 7 oil shales.

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“…Furthermore, different types of oil can coexist in a same sedimentary basin depending on their origin (lacustrine or marine). 36 Because oil fields may contain different types of crude oil, it is difficult to characterize them accurately, so different methods have been developed. Vieira et al 36 have used atomic absorption spectrometry to measure the concentration of nickel and vanadium in the crude oil samples.…”

Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 99%

Disjunctive Optimization Model for the Production Planning and Blending of Crude Oil in a Conventional Oil Field

Duckwen

Moreno

Borio

et al. 2018

Ind. Eng. Chem. Res.

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This work presents a multiperiod nonlinear formulation based on generalized disjunctive programming (GDP) that integrates the production planning and pooling problems in a conventional onshore oil reservoir with fixed topology and a surface interconnection scheme. The model optimizes the well production and blending decisions, while complying with product specifications, such as the sulfur content required by refineries downstream of the oil field. It considers wells from different reservoirs belonging to a given oil field, which are interconnected through manifolds at a network of pipes. The nonlinear behavior of well pressure as a function of time and bilinearities in mass balances are also taken into account. The objective function maximizes the accumulated production of the end products. Numerical results show that obtaining end products as result of blending operations is affected by production planning in wells, the capacity of intermediate tanks, and sulfur specification.

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Exploratory data analysis using API gravity and V and Ni contents to determine the origins of crude oil samples from petroleum fields in the Espírito Santo Basin (Brazil)

Cited by 25 publications

References 41 publications

Trace Element Bioaccumulation in Stone Curlew (Burhinus oedicnemus, Linnaeus, 1758): A Case Study from Sicily (Italy)

Trace Element Bioaccumulation in Stone Curlew (Burhinus oedicnemus, Linnaeus, 1758): A Case Study from Sicily (Italy)

Trace and rare earth element geochemistry of crude oils and their coexisting water from the Jiyuan Area of the Ordos Basin, N China

Disjunctive Optimization Model for the Production Planning and Blending of Crude Oil in a Conventional Oil Field

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