66
Statistical Methods for Estimating Petroleum Resources
both LDSCV and NDSCV. The LDSCV and NDSCV results are given
in Figure 4.3 and tables 4.1 through 4.4. More information about the
procedure for determining N values can be found in Lee et al. (1999).
Weibull Population
For the Weibull population, LDSCV underestimates the number of
pools as 200 when n = 30 (Fig. 4.4B, left; Table 4.1) and overestimates
the number of pools as 400 when n = 50 (Fig. 4.4B, right; Table 4.2). On
Figure 4.3. (A–C) Simulated lognormal population. Discovery sequence (A) and
log-likelihood values versus N value plots derived by LDSCV (B) and NDSCV (C).
Statistical Methods for Estimating Petroleum Resources
both LDSCV and NDSCV. The LDSCV and NDSCV results are given
in Figure 4.3 and tables 4.1 through 4.4. More information about the
procedure for determining N values can be found in Lee et al. (1999).
Weibull Population
For the Weibull population, LDSCV underestimates the number of
pools as 200 when n = 30 (Fig. 4.4B, left; Table 4.1) and overestimates
the number of pools as 400 when n = 50 (Fig. 4.4B, right; Table 4.2). On
Figure 4.3. (A–C) Simulated lognormal population. Discovery sequence (A) and
log-likelihood values versus N value plots derived by LDSCV (B) and NDSCV (C).