Carbon can be a major constituent of crustal and mantle fluids, occurring both as dissolved ionic species (e.g., carbonate ions or organic acids) and molecular species (e.g., CO2, CO, CH4, and more complex organic compounds). The chemistry of dissolved carbon changes dramatically with pressure (P) and temperature (T). In aqueous fluids at low P and T, molecular carbon gas species such as CO2 an...

Temporary winter flooding is a common practice for enhancing wildlife habitat in the Lower Mississippi River Basin (LMRB) and other migratory waterfowl flyways North America. This also facilitates nutrient retention reuse of rainwater- or drainage-water. study examines consequence five different water management approaches on soil carbon dioxide (CO2) efflux corn (Zea mays L.) residue decomposi...

Permeability reduction in oil reservoirs during primary oil recovery and using the enhanced oil recovery methods are complicated problem which most of the oil field in worlds has encountered. In this work, a modified model based on four phase black oil model (oil, water, gas, and asphaltene) was developed to account permeability reduction during CO2 flooding in cylindrical coordinates around a ...

1. Introduction The formation of miscible mixtures of two chemically dissimilar polymers is in general unfavourable. For many materials a single phase is never formed, while for others, the miscible state is only obtained at low temperatures. The classic description of the interaction between two polymers is via the Flory-Huggins theory (for example see [l]) in which x, the interaction paramete...

Ostwald ripening of trapped bubbles in porous media is relevant to several subsurface (e.g., CO2 storage) and manufacturing fuel cells) applications. A fundamental question common both is: how does an initially heterogeneous distribution bubble sizes, PDFo, evolves towards a stable equilibrium distribution, PDFe? And what We develop pore-network model (PNM) that simulates the temporal evolution...

Enhanced oil recovery using nanoparticles is a promising method. However, when injected into reservoir, can block pores and cause permeability damage. Therefore, enhancing their performance to lower the damage effect crucial. This study investigated of pH alteration through carbon dioxide (CO2) injection on limestone caused by an aluminum oxide (α-Al2O3) nanofluid. The methodology involved nano...

Abstract Enhancing oil recovery in reservoirs with light and high gas content relies on optimizing the miscible water alternating (WAG) injection profile. However, this can be costly time-consuming due to computationally demanding compositional simulation models numerous other well control variables. This study introduces WAG eq , a novel approach that expedites convergence of optimization algo...

Cecropia latiloba can be considered to be one of the most efficient colonizers of open areas in the nutrient-rich whitewater floodplains of the Amazon river. Its main strategy to be successful is the high tolerance towards waterlogging and submergence, and the fast vertical growth and reiteration capacity. This, and the tolerance of high irradiation and sediment deposition allow C. latiloba to ...

Flooding of gas diffusion electrodes (GDEs) used in electrochemical conversion CO2 to ethylene is caused by polymerization minor products. The polymer so created reduces the hydrophobicity GDE, leading initially a reduction yield and finally complete failure.