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Potential Ultimate Yield of a source rock

PUYG stands for Potential Ultimate Yield of gas. It is the amount in cubic meters of gas that is expelled from a SR when it has gone to complete maturity for gas, i.e. completely overmature. It is expressed as M³ per %TOC per M³ of net SR.

PUYO stands for Potential Ultimate Yield of Oil. It is the amount in liters of oil that is expelled when a SR has gone through the oil window and expressed per percent of TOC and per cubic meter of net SR.

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