Page 331 - Well Logging and Formation Evaluation

Index 321

Magnetometer, 171 MWD—see Measurement while
Magnetostatic homing-in, 171–185 drilling
Management negotiation, 128
Mapping, 196
N
Maps, 141
Material balance, 162–163 n, 130
Matrix density, 34 NaCl concentration, 38
Matrix Poisson ratio, 109 Net effective vertical stress, 115
Matrix shear modulus, 109 Net pore volume (NPV), 1, 126, 131
Mean, 99 Net present value (NPV), 3, 119
Mean sea level, 193 Net sand, 49
Measurement while drilling (MWD), Net thickness, 2
172 Net/gross, 97, 132, 139
Mechanics, rock, 115–118 Neural networks, 87
Membership function, 86 Neutron, wireline, 6
Memory, LWD, 4 Neutron, LWD, 5
Mercury, 19 Neutron, thermal decay, 93–95
Meridian, 194 Nitrogen, 158
Methane, 158 NMR—see Nuclear magnetic
MgCl, 39 resonance
Microresistivity, 6, 73 Nonmagnetic collars, 196
Minerals, 17 Nonskeletal particles, 22
clay, 149 Non-wetting phase, 19
Minimum phase, 105 Normal distribution, 100
Mobility, 45 Normal faults, 151–152
Model Normalized Q v method, 71
dynamic, 2, 59 North pole, 172
static, 2, 59 North, grid, 194
Modeling North, magnetic, 194
acoustic impedance, 110–113 North, true, 195
elastic impedance, 110–113 NPV
fluid replacement, 108–110 net pore volume, 1, 126, 131
Molecular self-diffusion, 78 net present value, 3, 119
Monopole, 172–185 Nuclear magnetic resonance (NMR),
field due to, 178–180 7, 54, 76, 199
Monte-Carlo analysis, 96–101
Montmorillonite, 68, 149
O
Mud
filtrate resistivity, 13 OBM—see Oil-based mud
water-based, 6 Odor, 23
Mudlog, 21 Oil-based mud (OBM), 6, 13, 30, 54,
Mudlogging, 21 74, 80
Multimineral models, 74 Oil formation volume factor (B o), 161