Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

LaTeX Math Block
anchorFZI
alignmentleft
{\rm FZI} = \frac{1}{\sqrt{F_S} \, S_{gV} \, \tau }

where

LaTeX Math Inline
body--uriencoded--S_%7BgV%7D = \Sigma_e/V_\phi

surface pore area per unit pore volume

LaTeX Math Inline
body\Sigma_e

pore surface area

LaTeX Math Inline
bodyF_S

pore shape factor

LaTeX Math Inline
bodyV_\phi

pore volume

LaTeX Math Inline
body\tau

pore channel tortuosity


In some practical cases this can be further simplified to:

LaTeX Math Block
anchorFZI_d
alignmentleft
{\rm FZI} =\approx 0.0037 \cdot \frac{d}{\tau }

where

LaTeX Math Inline
bodyd

average grain size


One of the proposed qualification of reservoir quality based on FZI is given by the Table 1.


Table1. One of the qualification schedules of reservoir quality.

FZIReservoir Quality
FZI > 8.0Very Good
3.5 < FZI ≤ 8.0Good
1.0 < FZI ≤ 3.5Medium
0.45 < FZI ≤ 1.0Poor
FZI ≤ 0.45Very Poor

See also

...

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics

...