Міжконфесійний діалог як складова культурно- цивілізаційних відносин

AbstractLarge potentials for CO2 storage were demonstrated in previous studies in Brazil. This study aims to estimate the CO2 storage capacity in the Campos Basin's oil fields, Southeast Brazil, in order to provide refined values to support CCS planning in the country. The results, based on field/reservoir level data show that there is a large potential for CO2 storage (ca. 950Mt) in the 17 assessed oil fields in the basin, and 75% of this storage capacity is found in sandstone reservoirs

Study of Gas Tracers for CO2 monitoring

AbstractGas tracers have been tested for monitoring and detecting CO2 displacement in the underground and eventually leakages to the upper layers in geological storage sites. Commonly used tracers are perfluorocarbons (PFCs) and sulfur hexafluoride (SF6). In Brazil, we are carrying out gas tracers studies in laboratory for further application in field test facilities. These experiments consist of injecting CO2 with perfluorocarbon (perfluoropropane – PP and perfluormethylcyclopentane – PMCP) at low pressure (ca. 290 psi) in pressurized vessels with different types of sediments and soil samples. After flowing through the sample pores, the tracer is adsorbed into a capillary adsorption tube (CAT) with a specific fiber for perfluorcabon. Then, the tracer is extracted from the CAT through a Thermal Desorption System and subsequently analyzed in a Gas Chromatograph with an Electron Capture Detector (GC -ECD). The objective of these experiments is to evaluate the PFCs as a monitoring tool, analyzing the tracer retention times in different sediments, as well as understanding the CATs adsorption capacity and performance. After laboratory tests, field experiments will be conducted in the course of this project. Several experiments of CO2 injection and controlled leaks will be developed in shallow vertical wells at the project site as a continuity of the experiments started at Ressacada Farm Site (Florianópolis, Brazil). The project aim is to understand the flow and dispersion of CO2 in soil and atmosphere simulating an eventual leakage from a geological reservoir using an automated system with a dedicated module for tracers injection into CO2 stream

Redes de dutos e transformações espaciais: analogia com carbodutos para armazenamento geológico de CO2

O transporte dos recursos energéticos fósseis, os quais são essenciais para o desenvolvimento da sociedade atual, é feito predominantemente por redes de dutos. Objetivando avaliar as transformações espaciais decorrentes da implantação de dutos a fim de fazer uma analogia com a construção de “carbodutos” para armazenamento geológico de carbono, foi realizado um estudo de caso da faixa de oleodutos OSCAN (Gravataí/Rio Grande do Sul). Fotografias aéreas, imagens de satélite, idas a campo e softwares de geoprocessamento foram utilizados para conduzir este trabalho. Através de técnicas de sensoriamento remoto, foram constatadas diversas transformações espaciais na área de estudo em função da implantação da dutovia OSCAN, além de re-configurações espaciais decorrentes do processo de desenvolvimento do município ao longo dos anos. Por fim, verificou-se que a implantação de carbodutos é análoga e também transformará a paisagem tanto em escala regional como naciona

Processos de redução e geração de porosidade nos turbiditos Caruaçu da Formação Maracangalha do Campo de gás de Jacuípe, Cretáceo Inferior, Bacia do Recôncavo, Bahia

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SISTEMA DE INFORMAÇÕES GEOGRÁFICAS APLICADO AO SEQUESTRO GEOLÓGICO DE CO2 NO BRASIL

O sequestro geológico de CO2 é uma das tecnologias mais promissoras para a mitigação de mudanças climáticas, tendo por objetivo a redução de gases de efeito estufa através da captura de CO2 (um dos principais gases de efeito estufa) de fontes emissoras estacionárias e armazená-lo em reservatórios geológicos adequados. O objetivo deste artigo é apresentar como um Sistema de Informações Geográficas (SIG) possibilitou a análise técnica-espacial para a identificação bem como a avaliação de áreas potenciais para armazenamento geológico de CO2 no Brasil. A elaboração de um SIG para este fim possibilitou o desenvolvimento de produtos que permitem uma análise ampla da situação atual do Brasil no que se refere a todas as etapas envolvidas no sequestro geológico de CO2. Este trabalho está inserido no Projeto CARBMAP, desenvolvido pelo Centro de Excelência em Pesquisa sobre Armazenamento de Carbono (CEPAC) da Pontifícia Universidade Católica do Rio Grande do Sul

Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities

The deep biosphere is an energy constrained ecosystem yet fosters diverse microbial communities that are key in biogeochemical cycling. Whether microbial communities in deep biosphere groundwaters are shaped by infiltration of allochthonous surface microorganisms or the evolution of autochthonous species remains unresolved. In this study, 16S rRNA gene amplicon analyses showed that few groups of surface microbes infiltrated deep biosphere groundwaters at the aspo Hard Rock Laboratory, Sweden, but that such populations constituted up to 49% of the microbial abundance. The dominant persisting phyla included Patescibacteria, Proteobacteria, and Epsilonbacteraeota. Despite the hydrological connection of the Baltic Sea with the studied groundwaters, infiltrating microbes predominantly originated from deep soil groundwater. Most deep biosphere groundwater populations lacked surface representatives, suggesting that they have evolved from ancient autochthonous populations. We propose that deep biosphere groundwater communities in the Fennoscandian Shield consist of selected infiltrated and indigenous populations adapted to the prevailing conditions.Westmeijer et al. employ high-throughput sequencing to investigate the connection between deep biosphere groundwaters and surface microbial communities. They suggest that the microbial communities of deep biosphere groundwaters in the Fennoscandian Shield are mostly comprised of autochthonous species, rather than migratory surface representatives

Dinâmica Sedimentar da Parte Oriental da Baía de Paranaguá, Brasil

A partir da análise discriminatória multivariada, associada à morfologia e à distribuição sedimentar da parte oriental da Baía de Paranaguá, foi possível estabelecer a dinâmica sedimentar atuante na mesma. Essa dinâmica comporta-se diferentemente na parte a Oeste e a Sudeste da Ilha das Cobras. O modelo geral da sedimentação, na Baía de Paranaguá, nos mostra que seus sedimentos provêm do aporte fluvial, da erosão local de bancos, da erosão do próprio substrato e em sua entrada; da plataforma continental através das correntes e ou ondas

Potencial uso de serpentinito no armazenamento mineral do CO2

Rising anthropogenic CO2 emissions are considered a major contributor to the greenhouse effect. There are several options for reducing atmospheric CO2 levels, and among these alternatives, Carbon Capture and Storage (CCS) has been identified as an effective and promising approach. This work investigated the feasibility of using serpentinite as a vehicle for carbon storage presenting a source-sink match. The main results of the work confirmed that serpentinite is appropriate for the carbonation process due to the high concentration of Mg in its composition

The Timi Risk score analysis in ST-elevation myocardial infarction patients after 6 months

Introdução: O escore de TIMI RISK (TR) para infarto agudo do miocárdio com supradesnivelamento do segmento ST (IAM) foi descrito originalmente por Morrow et al. (2000),baseado em 8 variáveis. Foi utilizado no estudo In TIME II como preditor de morte em 30m dias e diversos estudos têm relatado com sucesso o TR como índice prognóstico para IAM, no entanto poucos relatos avaliam a evolução tardia desses pacientes e relação como o escore. Objetivo: Avaliar a evolução em 6 meses dos pacientes internados em Hospital Escola com IAM e sua relação com a estradição do TR.Casuística e Método: Foram acompanhados ambulatorialmente em hospital escola, 89 pacientes, durante6 meses após determinação inicial do escore do TR realizado durante internação por IAM. Foram avaliados os seguintes parâmetros: óbito, reinternação por evento cardiovascular e necessidade de revascularização. Divididos em 3 grupos de acordo com o escore: Grupo I (0, 1, 2); Grupo II (3, 4, 5);Grupo III (> 5), foram submetidos à análise estatística pelo método de Qui-Quadrado. Resultados: Óbito, revascularização e reinternação respectivamente: GI- 4,1%, 20%, 25%; GII- 10%, 30% e GIII- 52%, 48%, 60%. Conclusão: O escore de TR manteve significativo aumento de eventos nos grupos II e III em relação ao grupo I; mostrando a possível aplicabilidade do escore também como preditor a longo prazo (6 meses).Background: The TIMI RISK (TR) score for ST-Evaluation Myocardial Infarction (STEMI) was originally describes by Morrow et al. (2000), basead on 8 variables. It was used in the In TIME study as 30-day mortality predictor and several studies successfully relate TR as prognosis index for STEMI, although few reports evaluate lete evolution of these patients and the relation whith the score. Objective: Evaluating the evolution of the STEMI interned patients in University-Based Hospitals after 6 months and the relation with the TR stratification. Methods and Results: 89 patients were clinicallyfollowed up in University-Based Hospital for 6 months after the initial determination of the TR score realized during hospital admission. The following parameters were evaluated: death, readmission for cardiovascular event, and revascularization necessity. They were classified in 3 groups according the score: Group I (0, 1, 2); Group II (3, 4, 5) and Group III (>5), were submit to statistic analysis by chisquaretest. The results of death, readmission in coronary-care unit and revascularization were respectively: GI: 4,1%, 25,0%, 20,8%; GII: 10,0%, 35,0%, 30,0%; GIII: 52,0%, 60,0%, 48,0%. Conclusion: TR score maintained significant events increase on Groups II and III comparing to Group I; presenting the possible score applicability also at long term as predictor (6 moths)

The ALBACORE oceanographic cruise: tectonic and sedimentary processes at distinct temporal and spatial scales in the Alboran Sea

European Geosciences Union (EGU) General Assembly, 23-27 May 2022, Vienna, AustriaThe Alboran Sea (Western Mediterranean) is a relatively small ocean basin connected with the Atlantic that provides a rich archive of tectonic and sedimentary processes at distinct temporal and spatial scales during the Quaternary. Since the collisional boundary of the Eurasia-Nubia plates crosses the Alboran Sea, this basin is also the locus of active geohazards: the constant seismic activity, concentrated mostly along the Al Idrissi strike-slip fault system and submarine landslides, that can cause tsunami hazards affecting the entire Alboran coasts and damages to submarine cables and infrastructures. Previous understanding of the Alboran Sea has been based on seafloor and subsurface geophysical data of differing resolution and scale, combined with very short sediment coring and IODP and industrial boreholes. In order to obtain new constrains on the geology of the Alboran Sea, the ALBACORE cruise was held in October and November 2021 onboard the R/V Pourquoi Pas? In addition to sites in the northern Alboran Sea targeting contourites, several sites in the southern Alboran Sea were selected as key study areas: the Al-Idrissi active fault zone, the Al-Hoceima shelf, the Xauen/Tofiño and the Francesc Pages banks. The scientific work of the ALBACORE campaign included the acquisition of Calypso cores (up to 28m long), sampling of consolidated strata with Cnexoville, in situ geotechnical measurements (Penfeld) with a seabed cone penetration test device (up to 50m long), heat flow measurements (up to 6m long), swath bathymetric imaging of the seafloor and water column, and sub-bottom profiling. The total length of sediments recovered reached 734m. Results from the ALBACORE cruise address the following scientific objectives: - To understand better the causal relationships between the present-day morpho-structural pattern and date Quaternary tectonic pulse and associated sedimentary systems - To determine the Late Pleistocene-Holocene stratigraphic pattern and the paleo-oceanographic implications of contourites. - To explore the chronological evolution of cold-water coral mounds and their paleoceanographic and palaeoclimatic signature since the Middle Pleistocene. - To investigate the causal factors of slope instability processes and evaluate the geological hazard associated with tectonic pulses and fluid seepage. - To determine the recent high-resolution sequence stratigraphy of the Al-Hoceima shelf in order to decode the late Pleistocene and Holocene sea-level changes at millennial scalePeer reviewe