Page 329 - Well Logging and Formation Evaluation

Index 319

Fractures, 17, 73 Geosteering, 196, 197–203
Fracturing, 27 up/down response, 201
Free water level (FWL), 1, 42, 44, GIIP—see Gas, initially in place
45, 60, 64, 65, 126, 130, 134, Glacial, 148
203 GOC—see Gas, oil contact
Freezing, 16 GR—see Gamma ray
Function, membership, 86 Gradients, anomalous, 44
Fuzzy logic, 85, 110–113 Grain density, 18
FWL—see Free water level Gravitational constant, 163
Gravity, 193
Grid north, 194
G
Gross bulk volume (GBV), 1, 126,
Gamma, 143 131, 143, 145
Gamma-ray (GR), 24, 30, 50, 74, 85 Gross Thickness, 2
LWD-, 5 Growth faults, 151–152
up/down, 197 Guns, 25
wireline, 5 GWC—see Gas, water contact
Gas Gyro survey, 47
blocking, 56 tools, 196
caps, 33 Gyromagnetic ratio, 77
constant, 155
cusping, 26
H
detection, 21
factor, 130 H 2S, 21
formation volume factor (B g), 161 Hardness, sample, 22
initially in place (GIIP), 1, 41, 59, HCPV—see Hydrocarbon pore
73 volume
oil contact (GOC), 2, 32, 34, 42, Height above free water level, 60
44, 130, 134, 161 Highside, 173
peaks, 33 HIIP—see Hydrocarbons initially in
water contact (GWC), 2, 44, 45 place
Gases Hinge line, 153
behavior of, 155–158 Histogram, 85
behavior of oil/wet, 159–162 grain density, 51
properties of, 158 History-matching, 57
Gas-oil differentiation, 34 Holding-up, 15
Gassmann equations, 108–110, 111 Homing-in
Gauge, strain, 47 electromagnetic, 185–191
GBV—see Gross bulk volume techniques, 171–191
Generic saturation/height functions, magnetostatic, 171–185
63, 65 Horner plot, 168–169
Geologist, 12 HSTF (angle between highside and
Geophone, 7 toolface), 177