Facies modeling of Kais Formation limestone: A case study of Kafor field, West Papua, Indonesia

Abd. Haris, Irwan Barlett Siburian, Agus Riyanto

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Facies modeling of Kais Formation limestone was carried out in the Kafor field, West Papua. Kais Formation limestone of Middle Miocene ages is the main reservoir that produces hydrocarbon in Kafor field. This field is located at Bintuni, West Papua. The objectives of this work are to perform detailed depositional facies analysis and to interpret the diagenesis process using rock typing for assessing the potential of the carbonate reservoir. Kais Formation limestone was classified into three members; Upper Kais, Middle Kais, and Lower Kais, which are associated with five different facies (i.e., shelf, front reef, inter reef, back reef, and core reef facies). The associated facies were interpreted as reefal platform carbonate. The reservoir quality was reviewed by facies distribution, petrography, and biostratigraphy. Our analysis shows that the Upper and Middle Kais were controlled by compaction and dominated by fractured porosity, while in contrast, the Lower Kais was controlled by dolomitization and dissolution diagenesis.

Original languageEnglish
Pages (from-to)160-166
Number of pages7
JournalInternational Journal of GEOMATE
Issue number40
Publication statusPublished - 2017


  • Facies analysis
  • Kais Formation
  • West Papua Indonesia


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