230
Index
prospect, 7, 14, 28, 37, 39, 54, 72–3, 87,
106–7, 127–8, 132, 138–9, 147,
164
quantile–quantile (Q–Q) plot.
See plots and plotting
Quirk Creek Rundle A gas pool,
82, 84
Rainbow basin, 23, 145
Rainbow reef play, 25, 39–41
random discovery of oil pools,
assumption of, 88
random number (Monte Carlo
simulation), 51, 118
random phenomenon (physical),
behavior of, 12
random sample, 12, 15–16, 18, 26, 28,
32, 34, 47, 61, 77
set, 13, 15
random sampling process, 31, 36–7
random variables, geological, 5, 7,
11–13, 16, 18, 21–2, 25, 27, 31, 43,
45, 102, 104, 112–13, 118, 127–8
approximated by lognormal
distribution, 102–104, 116,
120–21, 126
and conceptual plays, 121, 136
conditional distribution of, 135–7
constructing probability
distributions of, 147
correlation between, 21–2, 25, 121–2
covariance matrix of, 45
infl uence on pool-size
distribution, 121
interdependence of, 121
joint density of, 43
range of values of, 137
range, interquartile, 53
ranked pools, 56, 168
ratio, constant, between adjacent size
classes, 20, 101, 104, 167
raw (untransformed) data, 4, 51,
120–21, 147
recovery factor, 19, 22, 116, 119–20
and inconsistent pool-size
measurement, 120
reef, 3, 8–11, 16, 18, 21–3, 25, 39–44, 49,
82, 86, 92, 95, 121, 124, 161–2,
171, 173
model, defi ned, 16
play, compared to reef model, 16–17
population, 11, 16
structure, 8–10, 16
regional analysis, 3–4
regional phenomenon (play-level
geological factor), 108–9
regional resource, and resource
potential, defi ned, 4
regression method (resource
evaluation), 153, 161, 170–72
defi ned, 170–71
reserve/reserves, 19–20, 50, 60, 80–84,
154, 170–72
appreciation or depreciation of, 81,
84
basin, 154, 170
booked gas, 80–83
converted to in-place volume, 19
data, aggregated, 170–71
estimated from drill stem test
results, 19–20
reservoir, 3–5, 8, 10–11, 26–7, 44, 103,
111–16, 124, 135–7, 149, 158
data, 3, 44–5, 140, 142–3
impact of biased samples on
correlation matrix, 44–5
depth, infl uence on order of
discovery, 26
development in reef
structures, 10–11
engineering equation for pool size
calculation, 116
facies, 107, 111–12, 114–15, 137–8
unfavorable, 85
parameters, 27, 124, 135–6
potential, shown on drill stem
tests, 112
pressure, 22, 137, 140
reconstructing burial and thermal
history of, 158–61
thickness, 124–5
resource/resources, 3–5, 7, 15, 26–7,
39, 50, 57, 59, 118, 133, 146, 151,
154, 165–6, 170–71, 174
calculating upper limit of, 157
defi ned, 4
distribution, potential, 3–5
estimate, aggregate, 4, 146, 153–4, 171
estimation procedures, statistical
point of view, 28
expected, 81, 84
inferred by judgment (testing
geological concepts), 165
potential, estimating, 3, 4, 26,
59–60
remaining, estimating, 60
total, over- or underestimated, 102
total, predicted by
extrapolation, 170
Index
prospect, 7, 14, 28, 37, 39, 54, 72–3, 87,
106–7, 127–8, 132, 138–9, 147,
164
quantile–quantile (Q–Q) plot.
See plots and plotting
Quirk Creek Rundle A gas pool,
82, 84
Rainbow basin, 23, 145
Rainbow reef play, 25, 39–41
random discovery of oil pools,
assumption of, 88
random number (Monte Carlo
simulation), 51, 118
random phenomenon (physical),
behavior of, 12
random sample, 12, 15–16, 18, 26, 28,
32, 34, 47, 61, 77
set, 13, 15
random sampling process, 31, 36–7
random variables, geological, 5, 7,
11–13, 16, 18, 21–2, 25, 27, 31, 43,
45, 102, 104, 112–13, 118, 127–8
approximated by lognormal
distribution, 102–104, 116,
120–21, 126
and conceptual plays, 121, 136
conditional distribution of, 135–7
constructing probability
distributions of, 147
correlation between, 21–2, 25, 121–2
covariance matrix of, 45
infl uence on pool-size
distribution, 121
interdependence of, 121
joint density of, 43
range of values of, 137
range, interquartile, 53
ranked pools, 56, 168
ratio, constant, between adjacent size
classes, 20, 101, 104, 167
raw (untransformed) data, 4, 51,
120–21, 147
recovery factor, 19, 22, 116, 119–20
and inconsistent pool-size
measurement, 120
reef, 3, 8–11, 16, 18, 21–3, 25, 39–44, 49,
82, 86, 92, 95, 121, 124, 161–2,
171, 173
model, defi ned, 16
play, compared to reef model, 16–17
population, 11, 16
structure, 8–10, 16
regional analysis, 3–4
regional phenomenon (play-level
geological factor), 108–9
regional resource, and resource
potential, defi ned, 4
regression method (resource
evaluation), 153, 161, 170–72
defi ned, 170–71
reserve/reserves, 19–20, 50, 60, 80–84,
154, 170–72
appreciation or depreciation of, 81,
84
basin, 154, 170
booked gas, 80–83
converted to in-place volume, 19
data, aggregated, 170–71
estimated from drill stem test
results, 19–20
reservoir, 3–5, 8, 10–11, 26–7, 44, 103,
111–16, 124, 135–7, 149, 158
data, 3, 44–5, 140, 142–3
impact of biased samples on
correlation matrix, 44–5
depth, infl uence on order of
discovery, 26
development in reef
structures, 10–11
engineering equation for pool size
calculation, 116
facies, 107, 111–12, 114–15, 137–8
unfavorable, 85
parameters, 27, 124, 135–6
potential, shown on drill stem
tests, 112
pressure, 22, 137, 140
reconstructing burial and thermal
history of, 158–61
thickness, 124–5
resource/resources, 3–5, 7, 15, 26–7,
39, 50, 57, 59, 118, 133, 146, 151,
154, 165–6, 170–71, 174
calculating upper limit of, 157
defi ned, 4
distribution, potential, 3–5
estimate, aggregate, 4, 146, 153–4, 171
estimation procedures, statistical
point of view, 28
expected, 81, 84
inferred by judgment (testing
geological concepts), 165
potential, estimating, 3, 4, 26,
59–60
remaining, estimating, 60
total, over- or underestimated, 102
total, predicted by
extrapolation, 170