Mechanism for enhanced oil recovery from carbonate reservoirs by adding copper ions to seawater

Bernardinelli, Oigres Daniel; Zornio, Bruno Fedosse; Duarte, Luís Gustavo Teixeira Alves; Almeida, J.; Vilela, Victor A.L.G.; Palma-Filho, Nicolau B.; Aoki, Caroline Y.; Ruidiaz, Eddy; Lamas, L. F.; Soares, Gabriel B.; Almeida, Rafael Valladares De; Miranda, Paulo B.; Miranda, Caetano R.; Sabadini, Edvaldo

doi:10.1016/j.fuel.2021.121605

Cited by 7 publications

(1 citation statement)

References 44 publications

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“…Essa composição, que difere dos reservatórios até então explorados no Brasil (mas já explorados no Oriente médio e Estados Unidos, por exemplo), fez com que novos estudos sobre recuperação de petróleo em tais minerais carbonáticos (como a Calcita) fossem desenvolvidos. [23][24][25] Esta é a motivação deste próprio trabalho, em que visamos inicialmente obter informações sobre as características da superfície da calcita, e depois investigar de forma preliminar o efeito de técnicas de EOR como a LSWI na interação do óleo com o mineral.…”

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Caracterização da superfície (10-14) da calcita por espectroscopia vibracional não linear

Filho¹

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Agradeço primeiramente aos meus pais Leila e Nicolau e aos meus irmãos Marcos e Alan que me apoiaram durante todo o mestrado com gestos e palavras. Esses anos em que passamos juntos em casa por conta da pandemia foram difíceis, mas teria sido pior sem a companhia de vocês. Minha querida Maria Beatriz tem uma grande parcela nessa caminhada também, obrigado pelo companheirismo, suporte emocional, incentivo e amor nas horas difíceis. Agradeço também a cada membro da minha família que me apoiaram também, com gestos, palavras e inúmeras mensagens de carinho. Ao Prof. Dr. Paulo Barbeitas Miranda, um orientador que me ensinou valores e atitudes que um bom cientista deve ter. Obrigado pela amizade que criamos, nossas viagens para Campinas e São Paulo com certeza contribuíram para isso. As reuniões de grupo que tínhamos me mostravam que eu realmente estava fazendo ciência com cientistas incríveis. Ao Instituto de Física de São Carlos (IFSC/USP) e seus funcionários pela oportunidade maravilhosa de fazer parte desse Programa de Pós-graduação marcado por sua excelência. Aos amigos e técnicos do Laboratório Bruno Torres e Débora Balogh pela ajuda e ensinamentos. Aos amigos do Laboratório de Espectroscopia Não Linear em Interfaces (LENI): Carol, Anand, Rafael, Florian e Joaquim Brasil. Aos pesquisadores e amigos do Grupo de Polímeros "Prof. Bernhard Gross" pela amizade, pelos inúmeros almoços no restaurante universitário (mais do que eu gostaria de lembrar), entre eles estão: Rafael, Beatriz, Gustavo, German, Thaynã, etc. Ao vôlei CAASO que desde a minha graduação se tronou a minha família em São Carlos e que fez com que minha experiência tenha sido a mais completa possível. Devo eterna gratidão a cada integrante das equipes masculina e feminina, técnicos e técnicas, amigos que vou levar para a vida toda, a família que eu escolhi. Não vou falar de nomes, pois facilmente ultrapassaria 50 deles. Aos pesquisadores do grupo SAMPA/USP-SP e CEPETRO/Unicamp que colaboraram com diversas discussões nas quais esse projeto estava inserido. À Repsol-sinopec Brasil que financiou esse projeto e o ajudou a torná-lo realidade.[...] Quando vocês acham que as pessoas morrem? [...] Elas morrem...quando são esquecidas.Mesmo depois que eu for, meu sonho se tornará realidade, os corações dos doentes serão curados.

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Section: Lista De Figurasunclassified

Caracterização da superfície (10-14) da calcita por espectroscopia vibracional não linear

Filho¹

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Numerical Interpretation of Core Flood Experiments for Low Salinity Water with and without a Boosting Agent using Ensemble Smoother with Multiple Data Assimilation

Sawata,

Tange,

Hiraiwa

et al. 2024

Day 2 Tue, April 23, 2024

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This paper reports core flood interpretation for two scenarios: oil displacements by low salinity water (LSW) and by LSW combined with a boosting agent, di-ethyl ketone (DEK). The target reservoir was an offshore carbonate oil field in UAE. In the laboratory scale, the two scenarios showed notable incremental oil recovery compared with the result of sea water (SW) injection. Therefore, the objective of this work was to derive the representative relative permeability curves and the range of their uncertainties in order to incorporate these promising results into field scale simulation studies, e.g., designing a field pilot test. The interpretation was conducted using a one-dimensional black oil simulation model in conjunction with the algorithm of Ensemble Smoother with Multiple Data Assimilation (ES-MDA). Parameters related to relative permeability were treated as variables, and those of the initial ensemble members were decided by Latin Hypercube Sampling from a uniformly distributed parameter space. Subsequently, the parameters in ensemble members were iteratively updated by the ES-MDA algorithm so that the misfit between the observed data and the calculated results was reduced. Finally, the representative relative permeabilities and the range of their uncertainty were determined from a misfit-degree viewpoint. The simulation model contained the salinity dependent relative permeability controlled by the weighting factor that is the function of salinity. In this study, the weighting factor was modelled based on the results of the fluid-fluid interaction test, which was conducted as the initial screening to identify oil reservoirs suitable for LSW flooding. This weighting factor setting is consistent with the theory that fluid-fluid interaction is a key mechanism of oil recovery in LSW flooding. The conclusion of this study is summarized as follows: The representative relative permeability curves were obtained by the ES-MDA algorithm more effectively and systematically than manual history matching because it did not require trial and error to find the model that reproduced the experimental results.In addition to the efficiency enhancement, the ES-MDA algorithm iteratively reduced the misfit of the ensemble members and gave the range of uncertainty associated with the interpretation. This workflow is efficient in that history matching and its uncertainty quantification are conducted simultaneously. This evaluation will be utilized to make subsequent simulation studies more rigorous.In comparison with the results of pure LSW and DEK-assisted LSW, the latter changed the wettability nature to more water-wet, which is indicative of the boosting effect. Though various LSW EOR-boosting additives have been experimentally investigated, there has been no study that covered the numerical interpretation of DEK as the EOR-boosting additive. This paper is motivated to conduct the numerical interpretation of the DEK-assisted LSW core flood experiment. The results indicated the efficacy of the additive boosting from the numerical perspective. This study also demonstrated the effectiveness of the ES-MDA algorithm, which handles multiple models, to conduct uncertainty evaluation associated with the core flood interpretation and future prediction.

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A State-Of-The-Art Low Salinity Water EOR in Carbonate Reservoir-Boosting Oil Recovery by Exploring Additives

Yonebayashi,

Hiraiwa,

Tange

et al. 2024

Day 3 Wed, April 24, 2024

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The industry and academia have continued efforts for aiming more oil recovery by focusing on certain ions in low salinity water (LSW) brine composition with variety of mechanism hypotheses. This paper reviews past history, findings, and the latest focus for exploring upside potentials of LSW EOR in carbonate reservoirs. Based on recent research focused on fluid-fluid interaction (FFI), forming micro-dispersion (MD) as an interfacial reaction of oil-water mixing, we highlight useful additives which can boost the interactions and improve LSW EOR gains. The majority of past LSW EOR investigation have been focusing on rock-fluid interaction, therefore, the subsequent engineered LSW investigation have been conducted from the perspective of reducing positive-charged carbonate rock surface by adding negative-charged materials such as sulfate ions. However, this approach is not practical from operational and/or reservoir management viewpoints due to scaling and reservoir souring risks. Together with sulfate ions, certain positive-charged cations have been also investigated to prevent oil droplets absorbing on rock surface by connecting with negative-charged components in oil. In recent, beyond the common investigated ions, new ions such as copper and chromium were reported to improve LSW EOR effect. Those efforts should be admired; however, it should point out uncertainties in the rock-fluid-interaction-oriented investigation in case of carbonates, because inconsistencies are often observed between screening stage results such as spontaneous imbibition tests and oil recovery evaluation results in core floods. In parallel with the engineered LSW optimization based on the rock-fluid interaction, the different approach was established based on the FFI as highly practical and consistent evaluation. The approach relied on micro-dispersion ratios (MDR) representing water content increment by the oil-water interfacial reactions because the oil recovery improving magnitude was demonstrated well correlating with MDR. Namely, aiming further oil recovery is equivalent to boost the FFI between LSW and positive oils. In the most recent research, three additives for pure LSW (diluted to 1% sea water): diethyl ketone (DEK), dimethyl ketone (DMK), and copper chloride were investigated as a sensitivity analysis from the perspective of MDR improvement and core flood tests. The ketones revealed noticeable increase of MDR more than double of that in pure LSW case. The tertiary oil recovery after sea water injection stage consistently increased +3%, +5%, and +11% IOIP for pure LSW, LSW+Cu(II), and LSW+DEK cases, respectively. A monotonous correlation was observed between those additional oil increment and MDR. Subsequently, a molecular-level fluid analysis using Fourier-transform ion cyclotron resonance mass spectrometer elucidated certain components taking main roles of FFI mechanism. Based on the functional components, further optimization of engineered LSW designs is expected as way forward.

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Mechanism for enhanced oil recovery from carbonate reservoirs by adding copper ions to seawater

Cited by 7 publications

References 44 publications

Caracterização da superfície (10-14) da calcita por espectroscopia vibracional não linear

Caracterização da superfície (10-14) da calcita por espectroscopia vibracional não linear

Numerical Interpretation of Core Flood Experiments for Low Salinity Water with and without a Boosting Agent using Ensemble Smoother with Multiple Data Assimilation

A State-Of-The-Art Low Salinity Water EOR in Carbonate Reservoir-Boosting Oil Recovery by Exploring Additives

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