Page 336 - Well Logging and Formation Evaluation

326 Index

Uncertainty, borehole position, 196 VSP—see Vertical seismic profile
Uncertainty, TVD, 203 Vugs, 73
Unitization, 125
Up/down GR, 197 W
Uranium, 6
Wait time, 79
Washouts, 36
V Water, clay-bound, 79
Wavelet, 105
Value of information (VOI), 119–124,
Waxman-smits equation, 67, 71
139
WBM, 13, 30, 80
van der Waals equation, 156
Weakpoint, 15
Vapor pressure line, 155
Weight on bit (WOB), 198
Varwiggle format, 105
Well
Velocity
development, 12
compressional, 6, 34, 109
exploration, 12
shear, 6, 34, 109
Well deviation, 193–195
Vertical seismic profile (VSP), 104
Well shoot test (WST), 7, 104
Vertical seismic profiling, 7
Well testing, 166–170
Virgin zone, 76
Wet-connect, 8
Viscosity, 163
Whitening, 105
diesel, 46
WOB—see Weight on bit
gas, 46
Wrench fault, 152
oil, 46, 85
WST—see Well shoot test
water, 46
VOI—see Value of information
Z
V p, 103–108
V sh, 32, 50, 68, 133 Zonation, 138