A Revisited: Facies, Diagenetic and Depositional Model of Miocene Kais Carbonate in Matoa Field, Salawati - Kepala Burung Block, Indonesia
Wahyudin, Muhammad1, Bob Wikan H. Adibrata2, Ngakan Alit Ascaria2 (1) JOB Pertamina-Petrochina Salawati, Jakarta, Indonesia (2) Pertamina Upstream, PT. Pertamina (Persero), Jakarta, Indonesia
The Miocene Kais carbonates of the
Some new well data combined with 3D seismic data, describe this reservoir more thoroughly. The carbonate ramp of Kais, compose of platform and reefal facies that consists of Planktonic Foraminifera wackestone, Larger Foraminifera wackestone, Coral floatstone, and Planktonic and Larger Foraminifera wackestone, are deposited as a low relief carbonate mudbank, in the restricted inner shelf-outer shelf area. These depositional models can be divided into early, middle, and last stages that correspond to the tectonic activity in the area.
Facies distribution and diagenetic succession in the Kais are strongly controlled by the depositional stages, which then controlled the porosity development in the Miocene Kais carbonates in the Matoa field.