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Producible fluid volumes in porous media determined by pulsed field gradient nuclear magnetic resonance
Producible fluid volumes in porous media determined by pulsed field gradient nuclear magnetic resonance
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机译:脉冲场梯度核磁共振法测定多孔介质中的可生产流体量
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摘要
The present invention is a method to determine the bound and free fluid index of fluids in porous media by pulsed field gradient (PFG) NMR diffusion measurements. The PFG NMR signal is evaluated using a two-fluid model that describes the self diffusion coefficients for the fluid fractions with low and high translational mobilities.
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