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Carbonate Reservoir Characterization Using Borehole Image for Quantification, Identification of Reservoir Flow Units
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
ABSTRACT
Senoro gas field is located within the Senoro-Toili Block in the eastern arm of Central Sulawesi, Indonesia and it is operated by JOB Pertamina-Medco E&P Tomori Sulawesi. The Senoro-Toili JOB-PSC is located geologically in a tectonically complex area of the eastern arm of Sulawesi, formed by a collision process between the Banggai-Sula micro-continent and the East Sulawesi Ophiolite Belt.
Three principal play types are present in the Senoro-Toili Block area, consisting of Miocene Carbonate Reef Buildup, Wrench Fault Anticline and ImbricateThrust Sheet Anticline structures.
Potential reservoir of Senoro field is provided by Miocene carbonates of Minahaki Formation including the Mantawa Member reefal carbonates facies, which contain excellent porosity and permeability.
Method used is Image Perm technique presents the results of integrating the sedimentological descriptions of conventional cores and petrophysical analysis with the interpretation of borehole images and conventional logs. Electrical borehole images combined with a full suite of the open hole logs, offer powerful means of characterizing facies and pore space. Characterization of porosity and flow units in a carbonate reservoir is achieved using the method of linking rock fabric descriptions and petrophysical properties as proposed in Jennings –Lucia model (2003) .