1D Basin Modeling and Geochemical Anaylsis of The Arafura Basin

Authors

  • Michael D H Mamengko Universitas Papua
  • David Victor Mamengko Universitas Papua
  • Tri Peni Setyowati LEMIGAS

Keywords:

1D Basin Modeling, Geochemisty, Source Rock, Arafura Basin

Abstract

The Arafura Basin is a frontier basin with significant hydrocarbon potential that remains not fully understood, particularly regarding source rock effectiveness across different structural settings. This study evaluates source rock potential, geochemical characteristics, and thermal maturity history using geochemical data and 1D basin modeling on five exploration wells (ABDX-1, BRX-1, KBX-1, KLX-1, and BBX-1). The analysis identifies several potential source rock intervals ranging from Permian, Jurassic, Cretaceous, to Tertiary ages. Geochemical evaluation reveals a stark contrast between depocenters and structural highs. Wells in the northern and southern depocenters (ABDX-1 and KLX-1) contain source rocks of fair to excellent quality that have reached optimal thermal maturity phases, ranging from peak to late mature. Conversely, wells in the structural high areas (BRX-1, KBX-1, and BBX-1) are proven to be non-generative as all source rock intervals remain immature due to insufficient burial history. Thermal history reconstruction indicates that the primary intensity of hydrocarbon generation occurred in the Neogene, triggered by a surge in sedimentation rates in response to the Melanesian Orogeny. This study concludes that exploration in the structural highs of the Arafura Basin carries high source rock risk, and successful hydrocarbon accumulation in these areas relies heavily on lateral migration mechanisms from active hydrocarbon kitchens developing in the northern and southern depocenters

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Published

08-01-2026

Issue

Vol. 49 No. 1 (2026)

Section

Articles

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