Evaluation of Petroleum Resources from Pool Size Distributions
The PRIMES (Petroleum Resources Information Management and Evaluation System) has been developed for assessments of oil and gas plays. The basic elements for PRIMES are a pool size distribution and a number of pools distribution. From these elements, individual pool sizes can be estimated. The remaining play potential can then be obtained from the undiscovered individual pool sizes.
The superpopulation play model approach is employed by PRIMES for making resource estimations. One of its main capabilities is enabling assessors to match reserves against estimated pool sizes; this provides a basis from which to estimate remaining potentials and to validate the input data. The Rimbey-Meadowbrook reef play from Alberta is examined in this paper and used as a guide to the procedure employed by PRIMES.
Figures & Tables
There is a continual need to update estimates of oil and gas resources remaining to be discovered, and also to refine the methodologies for making these assessments. In 1974, AAPG sponsored a research conference dealing with the above topics, and many of the papers presented there were published in AAPG Studies in Geology 1. As a follow-up to that volume, a U.S. Geological Survey workshop was held in 1983, and many papers from talks presented there, in addition to several other papers, are contained within this volume. The 22 papers have been grouped into two types: those describing methodologies for evaluating resources and those presenting assessments of both conventional and unconventional resources.