Page 583 - Petrophysics

550 PETROPHYSICS: RESERVOIR ROCK PROPERTIES

NOMENCLATURE

A Area, cm2
Bo Formation volume factor, RB/STB
C Compressibility, psi-'
d Distance, ft
FII Fracture Intensity Index, unit less
Ft Total Fracture Intensity Index, unit less
hf Fracture height, cm or ft
h Formation Thickness, ft
HT Tiab's hydraulic unit characterization factor, unit less
k Permeability, mD, Darcy, or cm2
L Length, cm
m Cementation factor or slope of semilog straight line
mf Fracture or double porosity cementation factor, unit less
mm Matrix cementation or porosity factor, unit less
No Oil in place, STB
P Pressure, psi or dynes/cm2
9 Flow rate, STB/D or cm3/S
R Resistivity, ohm-m
r Radius, cm
rW Wellbore radius, ft
S Specific surface area, cm2
S Saturation, fraction
V Volume, cm3
W Width, cm or pm

SUBSCRIPTS

b Bulk
C Capillary
C Characterization
e Ellipsoidal
f Fracture
gr Grain
h Hydraulic
m Matrix;
0 oil
mf Mud filtrate
f+m Fracture and matrix
P Pore; producing
PV Pore volume
S Surface