Sustainable Enhanced Oil Recovery Fluid Based on Synergic Effects of Cationic, Anionic, and Nonionic Surfactants in Low Salinity: SLS; QA; and SDBS.

In the context of the energy transition, petroleum will remain a critical resource for several decades. Enhanced oil recovery (EOR) offers a method for optimizing its production while advancing the United Nations Sustainable Development Goal 12 (SDG 12) and the 2030 Agenda, which emphasize reducing the environmental impact and addressing community concerns. Pre-salt limestone reservoirs, situated far offshore, require customized enhanced oil recovery (EOR) strategies.

Screening and testing potential inhibitors of sulphide gas production by sulphate-reducing bacteria.

Sulphate-reducing bacteria are commonly associated with biological causes of oil well souring. Biosulphetogenesis can directly affect oil quality and storage due to the accumulation of sulphides. In addition, these microorganisms can create bio-incrustation that can clog pipes.

Comparison of early cardiovascular risk among Brazilian and African university students.

Unlabelled: Cardiovascular diseases are among the main causes of mortality worldwide, and dyslipidemia is a principal factor risk. Hence the study of biochemical markers is necessary for early diagnosis.

Objectives: Evaluate biomarkers to diagnose the risks of cardiovascular diseases in healthy Brazilian and African young adults.

Souring control in fluid samples of oil industry using a multiple ligand simultaneous docking (MLSD) strategy.

We have used docking techniques in order to propose potential inhibitors to the enzymes adenosine phosphosulfate reductase and adenosine triphosphate sulfurylase that are responsible, among other deleterious effects, for causing souring of oil and gas reservoirs. Three candidates selected through molecular docking revealed new and improved polar and hydrophobic interactions with the above-mentioned enzymes. Microbiological laboratory assays performed subsequently corroborated the results of computer modelling that the three compounds can efficiently control the biogenic sulfide production.

Novel potential inhibitors for adenylylsulfate reductase to control souring of water in oil industries.

The biogenic production of hydrogen sulfide gas by sulfate-reducing bacteria (SRB) causes serious economic problems for natural gas and oil industry. One of the key enzymes important in this biologic process is adenosine phosphosulfate reductase (APSr). Using virtual screening technique we have discovered 15 compounds that are novel potential APSr inhibitors.