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Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil and gas reserves and coal reserves. It is defined as the "quantity of energy sources estimated with reasonable certainty, from the analysis of geologic and engineering data, to be recoverable from well established or known ...
Proven oil reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be estimated, with a high degree of confidence, to be commercially recoverable from a given date forward from known reservoirs and under current economic conditions.
Reserves are defined in three sub-categories according to the system used in the PRMS: Proven (1P), Probable and Possible. Reserves defined as Probable and Possible are incremental (or additional) discovered volumes based on geological and/or engineering criteria similar to those used in estimating Proven reserves. Though not classified as ...
Consuming less or importing more oil prolongs the useful life of existing oil reserves. Between 1970 and 2007, due to declining production and increasing demand, net US imports of oil and petroleum products increased from 3.16 million barrels per day (502 × 10 ^ 3 m 3 /d) in 1970 to 12.04 million barrels per day (1.914 × 10 ^ 6 m 3 /d) in ...
2P – proved and probable reserves; 3C – three components seismic acquisition (x, y, and z) 3C – Proved, probable and possible contingent resources; 3D – three-dimensional ; 3P – proved, probable and possible reserves; 4D – multiple 3Ds acquired over time (the 4th D) over the same area with the same parameters
First SPE added levels of field project status relating to possible levels of risk. [13] Other modifications introduced a further subcategory, dividing reserves into proved (P1), probable (P2) and possible (P3) reserves. [12] [14] A number of recommendations have been made towards standardizing and improving petroleum reporting. [6]
Reserve estimates based on these are referred to as 1P, proven (at least 90% probability); 2P, proven and probable (at least 50% probability); and 3P, proven, probable and possible (at least 10% probability), respectively. [43] As stated previously, oil is divided up into different types, therefore those counting up reserves should keep that in ...
It is regarded by some as somewhat less strict than the SPE proven reserves. On 29 September 2014, President of the Union of Oil and Gas Producers of Russia Gennady Shmal told a press conference that Russia's discovered oil reserves (ABC1) stand at 17.8 billion tons (17.8 * 10 12 m 3 ).