Page 289 - The Geological Interpretation of Well Logs
P. 289
- INDEX -
hydrocarbon separation 49 petrophysical 165
hydrocarbons 49, 57 statistical 165 oil-based mud 50
hydrogen index 133, 141 lithology reconstruction 151 et seq. open-hole 1
from cores 153 outcrop 256, 261
image from drill data 151 gamma ray 261
acoustic 216 lithostratigraphy 253 overpressure 10, 24, 63, 65, 103,
breakouts 222, 224 log cross-plots 160 124
fractures 221-3 log definition 1]
interpretation 220 log depth 18 pad resistivity 5!
mud weight 220 log heading 6 parasequence 247
processing 218 log histogram 159-60 set 247
quantitative uses 223 log run 3 PEF 127
resolution 218 log sampling rate 2 permeability 113
tools 216 log scales 5 petrophysics 56, 165, 263
bed thickness 215, 206 log tracks 5 photoelectric absorption 127
comparison with core 205 logging cable 3 photoelectric factor
creation 200 logging companies 7 common values 130
electrical bed thickness 215, 206 logging environment 9 et seq. lithology 131
facies 210 borehole depth measurement 18 logs 127 et seq.
interpretation 204 formation pressures 10 qualitative uses 131
lithology 209 invasion-drilling pressures 1] quantitative uses 130
permeability 215 logging speeds 2 logging 116
presentation 200 logging tools 3 potassium 69, 74
processing 203 capabilities 12 pressure 9
quantitative uses 215 Long Spacing Sonic 93 principal component axes 167
resolution 205 LWD (Logging While Drilling) 5, pyrite 61, 124, 149
tools 201 48
faults 213 quick look technique 49
fractures 213 M and N plot 162
logs 199 et seg. 264 marine flooding surface 242 reflected amplitude 218
electrical image interpretation matrix velocities 99 regressive surface of erosion 242
204 maximum flooding surface 239, resistivity 42
electrical image sedimentary 244, 262 logs 42 et seg.
interpretation 208 Milankovitch frequency 266 log characteristics 54
electrical image structural mud cake 11, 28, 47 qualitative uses 58
interpretation 212 mud log 151 quantitative uses 56
electrical imaging 201 multivariate analysis 165 rock resistivity 44
presentation 200 MWD (Measurement While zones of invasion and
slump 214 Drilling) 5 resistivity 46
unconformity 212 profile 47
imaging tools 199 natural gamma radiation 69 tools 50
induction tools 52 neutron calibration 137 reverse drag 194
integrated travel Gme 95 evaporites 145 rollover drag 194
interval transit time 91, 94 gas effect 139
interval velocity 107 lithology 141 ; sand radioactivity 79
invasion 11, 12, 46 porosity 133, 138 sand resistiviry 60
invasion profile 48, 53 shales 139, 142 SCAT (Statistical Curvature
investigation geometry 17 tools 135 Analysis Technique) 197
neutron-density 147 sedimentary dip 181
laterolog 51 cross-plot 147 self potential (SP) logs 33 et seq.
limestone resistivity 61 evaporites 149 qualitative uses 39
litho-density log 127 lithology 147-8 quantitative uses 37
lithology interpretation 151 neutron log 133 et seq. sequence boundary 239, 241
computer aids 159 qualitative uses 141 sequences 226
from wireline logs 155 neutron porosity 133 sequence stratigraphy 239 et seq.,
logs 155-9 NMR (nuclear magnetic resonance) 261
multi-log quantification 165 263 computer interpretation 25]
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