Jd. Grace et al., COMPARATIVE RESERVES DEFINITIONS - USA, EUROPE, AND THE FORMER SOVIET-UNION, Journal of petroleum technology, 45(9), 1993, pp. 866-872
Reserves definitions in use in the Former Soviet Union (FSU) are descr
ibed and discussed. The U.S. Securities and Exchange Commission (SEC)
and SPE deterministic definitions and the 1983 World Petroleum Congres
s (WPC) probabilistic (1P, 2P, and 3P) definitions commonly used in Eu
rope are compared with the A, B, C, and D system used in the FSU. We d
iscuss the strengths and weaknesses of each system, the implication fo
r quantification of reserves and resources in each area, and the trans
lation difficulties between systems.