EARTH SCIENCE
GEOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TOC = 2-3 wt.% S1 = 1-2 mg HC/g rock S2 = 5-10 mg HC/g rockWhat is the source rock potential?
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V. Good
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Poor
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Good
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Excellent
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Explanation:
Detailed explanation-1: -Total organic carbon (TOC) is the main measurement used for estimating the quality and productivity of a source rock. The source rock-usually an organic rich shale-contains various carbon compounds such as kerogen, bitumen, oil and gas.
Detailed explanation-2: -Rock Eval pyrolysis S1 = the amount of free hydrocarbons (gas and oil) in the sample. S2 = the amount of hydrocarbons generated through thermal cracking of nonvolatile organic matter. S3 = the amount of CO2 (in milligrams CO2 per gram of rock) produced during pyrolysis of kerogen.
Detailed explanation-3: -Effective source rocks are sedimentary rocks, which have already generated and expelled hydrocarbons.
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