224
Index
geochemical studies, 3, 140, 152,
154–161
data, 140, 153, 157
interpretation of, 112
mass balance method, 154, 168
petroleum system method and
thermal history, 154–161
geographic boundary of play, 143, 146
geological approach (qualitative
method), 3, 7–13, 37–9, 42,
47–8, 53, 143–51, 153–61
geological factor, 5, 106–12, 114–16,
130, 133, 137–8
frequency of occurrence of, 107–8
independent, 112, 114–15, 126
play-level, 108–11, 115–16, 130, 133
presence of closure, 107, 111–12,
114–15, 124, 130, 136–8
prospect-level, 108, 111–12, 114–16,
118, 130, 133
geological judgment, 109, 136, 146, 165
geological meaning of lognormal
discovery model (diagram), 32
geological model, 6–8, 11, 17–18, 47,
50, 53–5, 57–8, 111, 132, 150, 174
geological play, 4–5, 7–8, 11–12, 14,
16, 18–22, 25–28, 34, 39, 42, 45,
47, 50, 54, 57–9, 82, 91, 94, 100,
108–10, 114–15, 120, 124, 171–3
defi nition of, 7, 11, 16–17, 50, 58,
106–7, 143, 145, 149
geological population, 7–8, 11–12,
16–18, 21–5, 89, 102, 143
defi ned, 11
nature of, 18
outliers in, 21–2, 50, 53, 89, 94
geological process, 8, 47, 86–7, 103,
156, 158–9
cause–effect relationship of, 158
destructive, 86–7
deterministically quantifi ed, 158
end product of, 103
geological properties,
quantifying, 143
geological random variable, 5, 11–12,
16, 18, 22, 102, 104, 116, 119–21,
128, 136–7, 147
geological and statistical
models, interactive loop
between, 174–5
Geological Survey of Canada
(GSC), 3, 161, 166
geophysical data, 3, 37, 73, 140–41
Glauconitic sandstone play, 96
goodness-of-fi t, statistical measure
of, 53
graphic procedure, informal, 89
Green’s theorem, 118
Gulf of Mexico offshore study, 73
histogram. See plots and plotting
Horn River basin, 10
Horvitz–Thompson-type
estimator, 38
Huang-Hua Basin sandstone
play, 114, 160
hydrocarbon, 4, 31, 50, 59, 106–8,
111–13, 116, 118, 142, 149, 158
formation, 156
migration, 31, 107–8, 112,
153, 156
occurrence, 4, 11, 31, 50, 106–8, 112,
128, 138, 144, 156
factors determining, 11, 107, 138
potential, defi ned, 4
estimating, 3–4, 53–4, 59–60
preservation, 107–8
recovery, 107
saturation, 116, 119–20, 124
source, 107–8, 112, 115–16, 133,
158–61
timing, 107, 116, 130, 138
volume, and number of fi elds, 73
yield factor, 19, 153
per unit volume, 153
Hydrocarbon Assessment System
Processor (HASP), 4
ideal gas constant, 159
Illinois Basin, 155, 171
inference-based estimation
technique, 167
infi nite population approach, 12, 17
joint approximation of geological
random variables, 119–20
joint density function, 31, 43
joint distribution of oil and gas, 43–4
joint probability function, 26
J-shaped distribution. See distribution
Jumping Pound Rundle gas
play, 80–84, 99
Kansas data set, 73
Kaufman’s anchored method, 3, 17,
27, 32–3, 88, 152, 161, 164–5, 170
Keg River play, 21, 42, 145
Index
geochemical studies, 3, 140, 152,
154–161
data, 140, 153, 157
interpretation of, 112
mass balance method, 154, 168
petroleum system method and
thermal history, 154–161
geographic boundary of play, 143, 146
geological approach (qualitative
method), 3, 7–13, 37–9, 42,
47–8, 53, 143–51, 153–61
geological factor, 5, 106–12, 114–16,
130, 133, 137–8
frequency of occurrence of, 107–8
independent, 112, 114–15, 126
play-level, 108–11, 115–16, 130, 133
presence of closure, 107, 111–12,
114–15, 124, 130, 136–8
prospect-level, 108, 111–12, 114–16,
118, 130, 133
geological judgment, 109, 136, 146, 165
geological meaning of lognormal
discovery model (diagram), 32
geological model, 6–8, 11, 17–18, 47,
50, 53–5, 57–8, 111, 132, 150, 174
geological play, 4–5, 7–8, 11–12, 14,
16, 18–22, 25–28, 34, 39, 42, 45,
47, 50, 54, 57–9, 82, 91, 94, 100,
108–10, 114–15, 120, 124, 171–3
defi nition of, 7, 11, 16–17, 50, 58,
106–7, 143, 145, 149
geological population, 7–8, 11–12,
16–18, 21–5, 89, 102, 143
defi ned, 11
nature of, 18
outliers in, 21–2, 50, 53, 89, 94
geological process, 8, 47, 86–7, 103,
156, 158–9
cause–effect relationship of, 158
destructive, 86–7
deterministically quantifi ed, 158
end product of, 103
geological properties,
quantifying, 143
geological random variable, 5, 11–12,
16, 18, 22, 102, 104, 116, 119–21,
128, 136–7, 147
geological and statistical
models, interactive loop
between, 174–5
Geological Survey of Canada
(GSC), 3, 161, 166
geophysical data, 3, 37, 73, 140–41
Glauconitic sandstone play, 96
goodness-of-fi t, statistical measure
of, 53
graphic procedure, informal, 89
Green’s theorem, 118
Gulf of Mexico offshore study, 73
histogram. See plots and plotting
Horn River basin, 10
Horvitz–Thompson-type
estimator, 38
Huang-Hua Basin sandstone
play, 114, 160
hydrocarbon, 4, 31, 50, 59, 106–8,
111–13, 116, 118, 142, 149, 158
formation, 156
migration, 31, 107–8, 112,
153, 156
occurrence, 4, 11, 31, 50, 106–8, 112,
128, 138, 144, 156
factors determining, 11, 107, 138
potential, defi ned, 4
estimating, 3–4, 53–4, 59–60
preservation, 107–8
recovery, 107
saturation, 116, 119–20, 124
source, 107–8, 112, 115–16, 133,
158–61
timing, 107, 116, 130, 138
volume, and number of fi elds, 73
yield factor, 19, 153
per unit volume, 153
Hydrocarbon Assessment System
Processor (HASP), 4
ideal gas constant, 159
Illinois Basin, 155, 171
inference-based estimation
technique, 167
infi nite population approach, 12, 17
joint approximation of geological
random variables, 119–20
joint density function, 31, 43
joint distribution of oil and gas, 43–4
joint probability function, 26
J-shaped distribution. See distribution
Jumping Pound Rundle gas
play, 80–84, 99
Kansas data set, 73
Kaufman’s anchored method, 3, 17,
27, 32–3, 88, 152, 161, 164–5, 170
Keg River play, 21, 42, 145