1887

Abstract

Summary

The Wichian Buri sub-basin of Phetchabun basin, Thailand is reported the significant recoverable hydrocarbon from fractured igneous rock reservoirs but until now no detailed research has been done to estimate the hydrocarbon generation and intrusion effect to maturation. In this study, an integrated approach was proposed and applied both petroleum system modelling (PSM) and hydrocarbon generation to evaluate potential source rock of Wichian Buri unit IV with intrusion effect. The study was conducted base on the data from public domain of petroleum industry in Thailand, including vertical well sections, well logs, regional geological sections, base maps, and geochemical data. The results of petroleum system modelling (PSM) indicated that potential source rock in Unit IV was maturation and generate HC with the effect of igneous intrusion. The Ro of the source rock is 0.62% and hydrogen index of the source rock is 222 mgHC/gTOC. Hydrocarbon generation was found in the late Miocene basalt tertiary and Permo-Triassic Nam Duk formation. Finally, the hydrocarbon generation estimated 1,392.4 - 2,489.7 MMSTB of Wichian Buri unit IV and results of this study concluded that the igneous intrusion effect to immaturities source rock to generate hydrocarbon.

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/content/papers/10.3997/2214-4609.201800361
2018-04-09
2024-03-28
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