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In our study, the refractive index of layer A is nA = 1.45 (SiO2) and the refractive index of layer B is nB = 2.3 (TiO2.3
In this paper, a new comprehensive characteristic index of layer regrouping and a method for automatic layer regrouping is presented.
In this paper, the pseudo flow resistance contrast is taken as a comprehensive index of layer regrouping at the high water-cut stage.
Therefore, this paper proposed interlayer apparent mobility contrast as decision index of layer recombination for low-permeability reservoir at high water cut.
For medium- and high-permeability sandstone reservoirs, Cui et al. (2016) introduced the pseudo flow resistance as a decision index of layer recombination, which did not consider the influence of hydraulic fractures and threshold pressure gradient.
Taking into account the differences of layer properties, including permeability, oil viscosity, and remaining oil saturation, the pseudo flow resistance contrast is proposed to serve as a characteristic index of layer regrouping for high water-cut multilayered reservoirs.
Similar(49)
By studying the effects of parameters of GATM structure, we realized that by varying parameters such as number of layers, distance between layers, refractive index of layers, etc., a suitable DWDM filter can be accomplished, which is in accordance with the communication ITU-T standard.
For high water-cut reservoirs, representation indexes of layer regrouping, such as permeability contrast and crude oil viscosity contrast, cannot meet the needs of layer regrouping.
It is shown that for all of the vertically inhomogeneous profiles the refractive index obtained from the homogeneous thin layer modeling underestimates the true averaged refractive index of the layer.
According to Eq. 1, the key parameter for preparing dual- and tri-layer films is to adjust the refractive index of each layer.
The refractive index of this layer is thus higher than the surrounding immersion medium and skin layers, thereby introducing wavefront distorsions particularly pronounced in fold regions.
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