scholarly journals Predict original oil&gas and migration path in Cuu Long basin by Pr/nC17 and Ph/nC18

2019 ◽  
Vol 20 (K8) ◽  
pp. 50-60
Author(s):  
Nguyen Manh Hung ◽  
Hoang Đinh Tien ◽  
Nguyen Viet Ky
Keyword(s):  
Crude Oil ◽  
Source Rock ◽  
Geochemical Analysis ◽  
Gas Migration ◽  
Bottom Part ◽  
Lower Oligocene ◽  
Upper Oligocene ◽  
Study Results ◽  
And Migration ◽  
Oil Gas

Pr/nC17 and Ph/nC18 are normally available in geochemical analysis report. The data used to define sediment deposition environment and maturity. In this study, the comparison between Pr/nC17 and Ph/nC18 data from extracted mature rock and in crude oil regading to stratigraphy to reveal their relationship with oil&gas migration parth. The study results showed that Pr/nC17 and Ph/nC18 from extracted and crude oil reflect original oil and migration parth. Crude oil producing in Miocene & upper Oligocene and Lower Oligocene& Basement are mainly from Lower Oligocene+ Eocene? (E+F) source rock and one part of crude oil is generated from bottom part of formation D but only in most subsidising area of depression in central part of Cuu Long basin.

scholarly journals Linkages between Energy Delivery and Economic Growth from the Point of View of Sustainable Development and Seaports

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4255
Author(s):  
Elżbieta Szaruga ◽  
Zuzanna Kłos-Adamkiewicz ◽  
Agnieszka Gozdek ◽  
Elżbieta Załoga
Keyword(s):  
Sustainable Development ◽  
Crude Oil ◽  
Cross Correlation ◽  
Point Of View ◽  
Oil Products ◽  
Modern Approach ◽  
Economic Cycles ◽  
Study Results ◽  
The One ◽  
Oil And Oil Products

This paper presents the synchronisation of economic cycles of GDP and crude oil and oil products cargo volumes in major Polish seaports. On the one hand, this issue fits into the concept of sustainable development including decoupling; on the other hand, the synchronisation may be an early warning tool. Crude oil and oil products cargo volumes are a specific barometer that predicts the next economic cycle, especially as they are primary sources of energy production. The research study applies a number of TRAMO/SEATS methods, the Hodrick–Prescott filter, spectral analysis, correlation and cross-correlation function. Noteworthy is the modern approach of using synchronisation of economic cycles as a tool, which was described in the paper. According to the study results, the cyclical components of the cargo traffic and GDP were affected by the leakage of other short-term cycles. However, based on the cross-correlation, it was proved that changes in crude oil and oil products cargo volumes preceded changes in GDP by 1–3 quarters, which may be valuable information for decision-makers and economic development planners.

Well Logging Data Interpretation in Oil and Gas Source Rock Sections Based on Complex Petrophysical and Geochemical Analysis Results

2018 ◽  
Author(s):  
Rais Khisamov ◽  
Natalya Skibitskaya ◽  
Kazimir Kovalenko ◽  
Venera Bazarevskaya ◽  
Nikita Samokhvalov ◽  
...  
Keyword(s):  
Source Rock ◽  
Oil And Gas ◽  
Data Interpretation ◽  
Well Logging ◽  
Geochemical Analysis ◽  
Gas Source

scholarly journals A formação, o trabalho e fixação de egressos médicos na Amazônia Ocidental / The Medical Education, Medical Work and Staying of Student Egress of the Medicine Course in Western Amazonia

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Jene Greyce Souza de Oliveira ◽  
Grimar De Oliveira Paula ◽  
Thiago Santos de Araujo
Keyword(s):  
Professional Practice ◽  
Medical Work ◽  
Convenience Sample ◽  
The Public ◽  
Study Results ◽  
Job Offers ◽  
Education Medical ◽  
And Migration ◽  
Transversal Study ◽  
De Medicina

ABSTRACTThe present study allowed describing the characteristics and identifying the aspects of permanence and migration after graduating of Medicine students from Federal University of Acre. Transversal study with a convenience sample of 89 graduates of the five already graduated classes until 2011. The data were collected through questionnaires submitted online, in the period of June to August 2012. The study results show that 71% of graduates are coming from other states of Brazil, 80% aged below 30 years, 61% male, 81.8% rated the medicine course of UFAC as good, 66.7 % reported being prepared for professional practice, with 64% approved on residency and / or internship specialty. The vast majority of doctors are residing and working in the capitals of Brazil (79%), working in the public sector (61.4%) satisfied with their chosen career (87.4%). About 58% stayed in Acre and pointed family (26%) the main cause of permanence. Of the 42% who migrated to another state, better job offers (29.7%) was the main cause of change. The present study demonstrates that in places like Amazon, the best working conditions and remuneration can be measures to be taken by the competent bodies for fixing physicians in areas with lack of professionals and should be prioritized.RESUMOO presente estudo permitiu descrever as características e identificar os aspectos relacionados à fixação ou migração dos egressos do curso de medicina da Universidade Federal do Acre após a graduação. Estudo transversal, com uma amostra de conveniência de 89 egressos das cinco turmas já graduadas até 2011. Os dados foram coletados por meio de questionários encaminhados via eletrônica, no período de Junho a Agosto de 2012. Os resultados do estudo demonstraram que 71% dos egressos são procedentes de outros estados do Brasil, 80% com idade abaixo de 30 anos, 61% do sexo masculino, 81,8% avaliaram como bom o curso de medicina da UFAC, 66,7% referiram estarem preparados para o exercício profissional, com 64% aprovados em curso de residência médica e/ou estágio de especialidade. A grande maioria dos médicos está residindo e trabalhando nas capitais do Brasil (79%), em setor público (61,4%), satisfeitos com carreira que escolheram (87,4%). Aproximadamente 58% ficaram no Acre e apontaram os laços familiares (26%) como causas principais de permanência. Dos 42% que migraram para outro estado, as melhores propostas de trabalho (29,7%) foram as principais causas de mudança. O presente estudo demonstra que a em locais como a Amazônia, as melhores condições de trabalho e remuneração, podem ser medidas a serem adotadas pelos órgãos competentes para a fixação de médicos em áreas com poucos profissionais e devem ser priorizadas.

An Early Oligocene age for the oldest known monkeys and rodents of South America

2021 ◽  
Vol 118 (37) ◽  
pp. e2105956118
Author(s):  
Kenneth E. Campbell ◽  
Paul B. O’Sullivan ◽  
John G. Fleagle ◽  
Dorien de Vries ◽  
Erik R. Seiffert
Keyword(s):  
South America ◽  
Amazon Basin ◽  
Middle Eocene ◽  
Detrital Zircons ◽  
Age Difference ◽  
Early Oligocene ◽  
Lower Oligocene ◽  
Upper Oligocene ◽  
Caviomorph Rodents ◽  
Age Estimates

The Santa Rosa fossil locality in eastern Perú produced the first Paleogene vertebrate fauna from the Amazon Basin, including the oldest known monkeys from South America. This diverse paleofauna was originally assigned an Eocene age based largely on the stage of evolution of the site’s caviomorph rodents and marsupials. Here, we present detrital zircon dates that indicate that the maximum composite age of Santa Rosa is 29.6 ± 0.08 Ma (Lower Oligocene), although several zircons from Santa Rosa date to the Upper Oligocene. The first appearance datum for Caviomorpha in South America is purported to be the CTA-27 site in the Contamana region of Perú, which is hypothesized to be ∼41 Ma (Middle Eocene) in age. However, the presence of the same caviomorph species and/or genera at both CTA-27 and at Santa Rosa is now difficult to reconcile with a >11-My age difference. To further test the Middle Eocene age estimate for CTA-27, we ran multiple Bayesian tip-dating analyses of Caviomorpha, treating the ages of all Paleogene species from Perú as unknown. These analyses produced mean age estimates for Santa Rosa that closely approximate the maximum 29.6 ± 0.08 Ma composite date provided by detrital zircons, but predict that CTA-27 is much younger than currently thought (∼30 Ma). We conclude that the ∼41 Ma age proposed for CTA-27 is incorrect, and that there are currently no compelling Eocene records of either rodents or primates in the known fossil record of South America.

SELF-harm and mIgration (SELF-mI) study: Results from one-year psychiatric admissions' study in Bologna, Italy

2019 ◽  
Vol 121 ◽  
pp. 158
Author(s):  
Gianmarco Iuzzolino ◽  
Ilaria Tarricone ◽  
Carmine Petio ◽  
Alessandro Oggiorni ◽  
Irene Toniolo ◽  
...  
Keyword(s):  
Psychiatric Admissions ◽  
Study Results ◽  
Self Harm ◽  
And Migration ◽  
One Year

scholarly journals Geochemical characteristics and depositional environments of the Narimba Formation source rock, Bass Basin, Australia

2020 ◽  
Vol 10 (8) ◽  
pp. 3207-3225
Author(s):  
Mohamed Ragab Shalaby ◽  
Muhammad Izzat Izzuddin bin Haji Irwan ◽  
Liyana Nadiah Osli ◽  
Md Aminul Islam
Keyword(s):  
Source Rock ◽  
Vitrinite Reflectance ◽  
Depositional Environments ◽  
Geochemical Characteristics ◽  
Type Ii ◽  
Wet Gas ◽  
Kerogen Type ◽  
Rock Characterization ◽  
Rock Eval ◽  
Oil Gas

Abstract This research aims to conduct source rock characterization on the Narimba Formation in the Bass Basin, Australia, which is made of mostly sandstone, shale and coal. The geochemical characteristics and depositional environments have been investigated through a variety of data such as rock–eval pyrolysis, TOC, organic petrography and biomarkers. Total organic carbon (TOC) values indicated good to excellent organic richness with values ranging from 1.1 to 79.2%. Kerogen typing of the examined samples from the Narimba Formation indicates that the formation contains organic matter capable of generating kerogen Type-III, Type-II-III and Type-II which is gas prone, oil–gas prone and oil prone, respectively. Pyrolysis maturity parameters (Tmax, PI), in combination with vitrinite reflectance and some biomarkers, all confirm that all samples are at early mature to mature and are in the oil and wet gas windows. The biomarkers data (the isoprenoids (Pr/Ph), CPI, isoprenoids/n-alkanes distribution (Pr/nC17 and Ph/nC18), in addition to the regular sterane biomarkers (C27, C28 and C29) are mainly used to evaluate the paleodepositional environment, maturity and biodegradation. It has been interpreted that the Narimba Formation was found to be deposited in non-marine (oxygen-rich) depositional environment with a dominance of terrestrial plant sources. All the analyzed samples show clear indication to be considered at the early mature to mature oil window with some indication of biodegradation.

THE ORIGINS OF COASTAL BITUMENS FROM WESTERN AUSTRALIA

1994 ◽  
Vol 34 (1) ◽  
pp. 787
Author(s):  
R. Alexander ◽  
T.J. Currie ◽  
R.I. Kagi
Keyword(s):  
Organic Matter ◽  
Crude Oil ◽  
Source Rock ◽  
Western Australia ◽  
Se Asia ◽  
Indonesian Archipelago ◽  
Organic Matter Type ◽  
Oil Seep ◽  
Australian Coastline ◽  
Depositional Setting

A total of 83 samples of stranded bitumens collected from the western and southern coasts of Western Australia have been classified into eight groups on the basis of their biomarker compositions. The source rock characteristics inferred for these bitumens, in terms of organic matter type and depositional setting indicated by the biomarkers, suggest strongly that the bitumens originate from a variety of areas in SE Asia in the vicinity of the Indonesian archipelago. In fact, in seven of the eight cases a good correlation is observed between biomarker composition of each bitumen group and a produced crude oil or oil seep from this region. The bitumens are transported to and around the Australian coastline by a system of ocean currents.

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