Kinetics of source rocks in Cuu Long basin
Abstract
Kinetics is the key parameter for assessment of quality and potential of source rocks as well as related to the ratio of oil/gas generated from them. Kinetics also has a great effect on the result of the petroleum system model constructed. The article presents the results of research on rock kinetics of Oligocene sedimentary in the Cuu Long basin. Source rock kinetics can be classified into two main groups representing source rock sequences D, E and F in the Cuu Long basin: (i) group having a low average Ea value, high oil-generating performance representing the source rocks containing abundant organic matters of lacustrine algal origin (rich in kerogen type I) and (ii) group having a wide Ea distribution and high average Ea value representing source rocks rich in organic matter of terrestrial vascular plant origin and mixture (kerogen types III and I).
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