Rare-earth elements as geochemical criteria of endogenous sources of microelements contained in oil

Gottikh, R. P.; Vinokurov, S. F.; Pisotskii, B. I.

doi:10.1134/s1028334x09020342

Cited by 14 publications

(17 citation statements)

References 2 publications

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“…This version is also confirmed and well seen when comparing the results of REE analysis in fractions of extracted and residual oils at the background of REE concentration of these highmolecular compounds of oils and ancient platforms given in paper 10 .…”

Section: Rees In Insoluble Residuesupporting

confidence: 74%

Balance of Rare-earth Elements in Sand Rocks of Western Siberia Oil-bearing Zones

Tsoy¹

2014

Biosci., Biotechnol. Res. Asia

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Distribution of REEs upon organic substance (OS) fractions of rocks, their clay component, soluble weak 1.8% HCl, and the insoluble reside (IR) is studied. Studies were performed in sand rocks of oil bearing reservoir beds and embedding sedimentary formations of the Western Siberia lowland Jurassic deposit. As a rule, contents of individual lanthanides in OS is lower than that in initial sand rocks, and REEs in OS of oil bearing rocks are distinguished by high enrichment with Eu and heavier lanthanides, especially Yb, and for OS of embedding sand rocks-with REEs, especially La. AE fractions of oil bearing sand rocks are enriched with light and medium REEs, rarely with Yb; AE embedding sand rocks are distinguished by predominant accumulation of medium, and to a lesser extent, light REEs as compared to the initial rock. The composition of mineral constituent rocks (CR) in all sand rocks in relation to other lanthanides is described by the presence of heavier REEs. The degree of abnormal accumulation of Eu and Yb in oil bearing reservoir bed OSs is maximal for the roof, and in the bottom of beds, a significant excess of Eu only is revealed; minimal similar abnormalities in REE redistribution are expressed in sand rocks of the medium part of reservoir beds. No abnormalities on Eu and Yb in embedding sand rock OSs and their presence in reservoir bed OSs is a geochemical criterion for identification of oil bearing rocks and adjustment of geophysical data in studying oil bearing sections of sedimentary rocks.

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Section: Rees In Insoluble Residuesupporting

confidence: 74%

Balance of Rare-earth Elements in Sand Rocks of Western Siberia Oil-bearing Zones

Tsoy¹

2014

Biosci., Biotechnol. Res. Asia

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“…Despite the great relevance of the determination of REE in crude oils, only few works are reported in literature [4,[7][8][9][10][11]. One possible reason is the complexity of crude oil matrix combined to some difficulties in the determination of REE at low concentrations.…”

Section: Introductionmentioning

confidence: 93%

“…In general, crude oils present predominantly light REE (La-Sm) than the heavy ones (Eu-Lu) due to the process of crude oil formation in the earth crust [4,6]. Therefore, the determination of REE in crude oils could inform crude oil origin, maturity of reserves, correlation to oil-source rock, among other aspects related to geological process of crude oil formation [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…According to the author, crude oils from the same basin presented the same profile of REE concentration [23]. Further, other works were performed related to REE determination in crude oils [4,[7][8][9]11,24]. However, in most of these works, the sample preparation step was time consuming, used a lot of reagents (mainly concentrated acids) and, in general, conventional heating is preferred, as dry ashing [4] or wet digestion [7,11].…”

Section: Introductionmentioning

confidence: 99%

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Microwave-induced combustion of crude oil for further rare earth elements determination by USN–ICP-MS

Pereira

Mello

et al. 2014

Analytica Chimica Acta

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“…Taking into account this fact and the low concentrations of REEs, some authors analyzed only the resinous-asphaltene fraction as a REE preliminarily extracted from oil in the study on the determination of REEs [7,8].…”

mentioning

confidence: 99%

A combined method of sample preparation for the determination of the total element composition of oils

2016

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A comprehensive approach to the determination of the elemental composition of oils (including those with a viscosity of 5000 mm 2 /s) is proposed. It ensures the determination of the most elements present in oils using two versions of sample preparation, autoclave decomposition of oil samples and extraction preconcentration of elements from oil into an aqueous solution on rotating coiled columns (RCCs). The application of RCCs in the elemental analysis of oil ensures the preconcentration of a number of trace elements from oil (including rare-earth elements) and the determination of their concentrations at a level of ng/kg. The preconcentration factor of trace elements from oil using an RCC depends on the volume of oil sample pumped through a constant volume of the stationary phase (acid solution) retained in the column and on the speciation of elements in the oil.

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Rare-earth elements as geochemical criteria of endogenous sources of microelements contained in oil

Cited by 14 publications

References 2 publications

Balance of Rare-earth Elements in Sand Rocks of Western Siberia Oil-bearing Zones

Balance of Rare-earth Elements in Sand Rocks of Western Siberia Oil-bearing Zones

Microwave-induced combustion of crude oil for further rare earth elements determination by USN–ICP-MS

A combined method of sample preparation for the determination of the total element composition of oils

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