... S scavengers, with triazines being the most common. The scope of this work was to evaluate non-triazine alternative chemistries head-to-head with incumbent products under challenging high H 2 S and CO 2 conditions. Methods, Procedures, Process In this study, monoethanolamine (MEA) triazine...

... subdiscipline blockage brine inhibitor reduction hydrate chemical flooding methods climate change concentration co2 hydrate injection wax inhibition enhanced recovery wax remediation meg liquid co2 pore pressure saturation communication co 2 Introduction Carbon capture, utilization...

... in measuring siderite solubility and precipitation kinetic. Lastly, we outline some future work in optimizing our study. Overall, this method can be used for extensive investigations in additional factors that affect the siderite formation, such as ionic strength, pH, CO 2 partial pressure, and the presence...

... Abstract This paper uses reactive transport modelling to analyse the impact of variations in the water and gas injection flow rates from a geochemical perspective on the scaling potential of carbonate reservoirs under CO 2 -WAG injection. A sensitivity analysis of the calcite saturation index...

... Abstract Foam enhanced oil recovery (EOR) techniques commonly use N 2 and CO 2 gases. Previous studies have compared the foam generated by these two gases, and it has been found that CO 2 becomes weaker and less stable at its supercritical conditions, reducing its effectiveness in creating...

... brine flow in porous media geological subdiscipline calcite dissolution permeability geology mineral calcite concentration wettability alteration fm concentration sustainability waterflooding rock type journal saturation co 2 enhanced recovery climate change calcium ion concentration...

... Abstract The low permeability of tight sandstone reservoirs limits the application of water flooding to improve oil recovery. Owing to their properties, N 2 and CO 2 have been used in gas flooding to increase the oil recovery from these reservoirs, achieving good results. However, the oil...

..., magnesium, scale inhibitor and "carbon" (i.e. the carbonate system aqeous components HCO 3 - , CO 3 2- and CO 2 and solid CaCO3). This full equation set, with suitable reduction, results in a system of 3 non-linear equations which can be solved by the Newton-Raphson method to find the final equilibrium...

.... Avenues to utilize the captured CO 2 are becoming an attractive area of research. One promising route is through the production of high-value and sustainable products where it can be directly used as a raw material. This paper highlights the direct conversion of CO 2 to valuable chemical products...

... is hard to preserve in field brines, a field applicable method for bicarbonate detection was developed in a previous study. It was named the "head space method". The method is based on the head space pressure change due to carbon dioxide (CO 2 ) releasing from test brine by adding strong acid to convert...

... Abstract To meet energy demand while reducing CO 2 emissions in a carbon constrained future, one of the key milestones of the roadmap proposed by the International Energy Agency is to stop new oil and gas field developments and extend instead existing fields’ lifetime. Waterflood and EOR...

... inhibition pipeline corrosion corrosion inhibitor oim brine carbon steel inhibition efficiency co 2 corsci upstream oil & gas production chemistry inhibitor mbi molecule imidazoline coupon orbital Introduction Carbon dioxide (CO 2 ) corrosion often exists from the downhole...

... Abstract Carbon dioxide injection into sedimentary formations has been widely used in enhanced oil recovery (EOR) and geological-storage projects. Several field cases have shown an increase in water injectivity during CO 2 Water-Alternating-Gas (WAG) projects. Although there is consensus...

... microscope for pitting and localized corrosion. A detailed analysis of the above testing yields promising results. The results from the testing show that formulations mitigate pitting in environments containing elemental sulfur. In less harsh conditions, such as low chloride brines or low CO 2 environment...

... Abstract CO 2 storage and sequestration are regarded as an effective approach to mitigate greenhouse gas emissions. While injecting an enormous amount of CO 2 into carbonate–rich aquifers, CO 2 dissolves in the formation brine under the large pressure, and the subsequently formed CO 2...

... of 2 to 5 km depth. Typically, they contain a light oil with high CO 2 content in solution gas (8 to 40%). CO 2 -WAG, using the recycled CO 2 from the reservoir, may be applied as a production strategy due to the requirement to minimize carbon emissions, maintenance of reservoir pressure, improved...

... Abstract CO 2 foams have been used for a long time for enhanced oil recovery (EOR) and carbon capture, utilization, and storage. Note that conventional CO 2 foam focuses on mobility control and storage of bare CO 2 . However, this technology has suffered from low storage efficiency and EOR...

... Abstract The efficiency of CO 2 water-alternating-gas (WAG) flooding is highly limited in low-permeability heavy oil reservoirs due to the viscosifying action of W/O emulsification and high mobility contrast between oil and CO 2 . Here we propose a new enhanced oil recovery (EOR) process which...

... Abstract A new cementing additive is chemically engineered to react with formation fluids that act antagonistically towards cement. Engineered polymer capsules house encapsulants to react with antagonistic gases downhole like CO 2 to form a more benign and beneficial material. Embedded...

... and abandonment applications were cured in fresh water, CaCl 2 brine, and hydrocarbon at 170°F up to one year. Additional samples cured in fresh water and water containing CO 2 and H 2 S at elevated temperatures (220°F to 320°F) for up to six weeks to produce accelerated degradation reactions allowed...