Page 332 - Petrophysics 2E
P. 332
PROBLEMS 301
WEST HOWARD-GLASSCOCK UNIT
Permeablllty (90.1
1 1 1p 140 1000
I
Bltfl -
Gamma Ray tog
Core - -- --
Figure 4.56. Permeabilities at 90' Bitri and core-analysis values [50].
TABLE 4.23
SUMMARY OF RESULTS
Total footage 40 ft
Average porosity 12.2%
Average water saturation 35%
Average permeability 5.6mD
Total hydrocarbons 3683 bbVacre
Hydrocarbon feet 0.47
Porosity feet 0.73
Net average hydrocarbons 6 14 bbVac-ft
Gross average hydrocarbons 92 bbVac-ft
Porosity cutoff 8%
Water saturation cutoff 45%
The last phase of well log analysis is designed to produce the maps and
grids required for visual presentation, for input to a field-wide simulator,
and for estimations of reserves. Table 4.23 shows a summary of calculated
average values of porosity, permeability, water saturation, and reserve
estimates.
PROBLEMS
1. The resistivity of a water sample is 0.35 ohm-m at 25OC. What is its
resistivity at 80°C?
