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Geochemical Analyses of Sedimentary Organic Matter and Interpretation of Maturation and Source Potential

By
C.W.D. Milner
C.W.D. Milner
Esso Resources Canada Limited
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Published:
January 01, 1987

Abstract

Petroleum is sourced from sedimentary organic matter that has been exposed to a sufficient combination of temperature and time to cause hydrocarbon generation. The amount and types of organic matter and the time-temp integral determine how much and what kind of hydrocarbons are yielded. It is possible to directly measure or to make predictions about these variables from chemical analyses of the organic matter. The most fundamental source rock parameter is the total amount of organic carbon present in the sediment. Another commonly used parameter is the amount of extractive hydrocarbon in the organic matter. This can be analyzed, usually by various chromatographic methods, over the entire hydrocarbon molecular size range from gases to solid bitumens, and for all classes of hydrocarbons. Similar predictions can be made by performing elemental analyses on the insoluble organic matter or kerogen. Today, more and more use is being made of pyrolysis techniques wherein organic matter is subjected to a simulated maturation process in the lab.

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Contents

SEPM Short Course Notes

How to Assess Maturation and Paleotemperatures

F. L. Staplin
F. L. Staplin
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W. G. Dow
W. G. Dow
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C. W. D. Milner
C. W. D. Milner
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D.I. O’Connor
D.I. O’Connor
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S.A.J. Pocock
S.A.J. Pocock
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P. van Gijzel
P. van Gijzel
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D.H. Welte
D.H. Welte
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M.A. Yükler
M.A. Yükler
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SEPM Society for Sedimentary Geology
Volume
7
ISBN electronic:
9781565762367
Publication date:
January 01, 1987

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