In migration volumetrics, it is important to estimate the original petroleum potential of the source rock—not just its present measured potential (with increasing [[maturation]], a portion of the original potential will have been realized and is therefore unmeasurable). Estimates of expelled hydrocarbons may be derived by measuring the amount remaining in a source and subtracting that value from the amount that should have been generated from the original assumed kerogen content. | In migration volumetrics, it is important to estimate the original petroleum potential of the source rock—not just its present measured potential (with increasing [[maturation]], a portion of the original potential will have been realized and is therefore unmeasurable). Estimates of expelled hydrocarbons may be derived by measuring the amount remaining in a source and subtracting that value from the amount that should have been generated from the original assumed kerogen content. |