Disaggregated remaining reserves to annual production ratios

摘要

One frequently sees ratios-ofthe abbreiviated as R/P's - of hte remaining oil and gas reserves to the annual production for a specified producign sector,geographical subivision,nation,or even the world.Inferences of the remaining "life" of the producing sector trated are then drawn from these R/P's .These inferences are,however,highly problematic.The reason is that the nanual production in the R/P's is an aggregation of production drawn from reserves added to an inventory in proior history,usualy over many years,of the producing sector.In any year,some production likely come form reseves found when the producign sector was "discovered",some from recent additions to the producing sector's inventory of reserves,and the rest from reserve additions between those two extremes.