Abstract: The oil recovery factor from shale oil remains low, about 5 to 7% of the oil in place. How to increase oil recovery from shale oil reservoirs is attracting more and more attention. CO2 huff-and-puff was historically considered one of the best approaches to improve the oil rate. Most previous simulation studies have been based on dual porosity, but simulation results from dual-porosity...

The purpose of this study was to compare the properties of 2 new dual-cure, bulk-fill restorative composite resins to those of a hybrid composite resin material. Depth of cure, fracture toughness, porosity, microleakage, and volumetric shrinkage properties were examined. With the exception of fracture toughness, significant differences were found among materials. Compared to the incrementally p...

The injection of carbon dioxide (CO2) in deep, unmineable coalbeds is a very attractive option for geologic CO2 storage: the CO2 is stored and at the same time the recovery of coalbed methane (CBM) is enhanced. The revenue of methane (CH4) production can offset the expenditures of the storage operation. Coalbeds form complex gas reservoirs characterized by their dual porosity: they contain both...

Groundwater ̄ow in fractured porous media can be realistically described using a dual-porosity approach. A popular numerical approach for simulation of groundwater ̄ow in dual-porosity media is the use of spatial discretization procedures based upon the ®nite element techniques. The computational e€ort for this technique strongly depends on both the number of unknowns and the number of time ste...

Materials comprising gels and metal-organic cages offer promising solutions to current scientific challenges. Their structures rely on non-covalent interactions hence can be dynamic change properties in response a variety of external stimuli exert functions, thus providing smart materials for diverse applications. Coupling these two types yields three-dimensional network with distinct sets pore...