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Figure 3 presents the results of calculations performed for oil deposits of reservoir A4, whose permeability is much lower.
Injecting this new shutoff agent into sand packs whose permeability is 7 μm2, the displacement pressure is up to 7 MPa.
Injecting this new shutoff agent into sand pipes whose permeability is 7 μm2, the displacement pressure is up to 7 MPa.
This power function relationship just corroborated that more underground oil resource connected by hydraulic or secondary fractures (higher ω) can be much easily extracted (higher λ) from tight rock whose permeability is ultra-low.
The coal seams are extremely heterogeneous reservoirs whose permeability depends not only on geological age, coal rank and purity, but also on gas and water saturations, in situ stresses and sorbed gas content.
In the core whose permeability contrast was 4 and average permeability ranged from 55.38 × 10−3 to 106.00 × 10−3 μm2, viscosity and IFT contributed approximately 70 and 30%% to the increase in oil recovery, respectively.
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This design is based on hollow fibers loaded with drug and whose hydrodynamic permeability is much higher than that of the surrounding tissue.
More specifically, inductors are made of magnetic cores whose magnetic permeability varies with temperature, which counterbalances the variations with temperature of the mechanical resonance frequency and of the piezoelectric capacitance.
Secondly, in order to reconcile the demand of reflecting the flow effect of individual fractures and the use of mature simulators, equivalent continuous medium model whose equivalent permeability tensor is a crucial parameter reflecting the flow behavior of fractured porous media is applied for calculating the numerical simulation of the fractured reservoirs.
Lakhtakia postulated that nihility medium is a medium whose permittivity and permeability both are null valued [10 13].
Skins a few mm thick consisting of material whose gas phase permeability is 0.01 of the formation can reduce the specific gas capacity of an SVE well by factors of 2 to 10 or more.
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