Senoro gas field is located geologically in a tectonically complex area of the eastern arm of Sulawesi, Indonesia formed by a collision process between the Banggai-Sula micro-continent and the East Sulawesi Ophiolite Belt.
The primary reservoir objective is a carbonate complex of Miocene age which consists of the Mantawa reefal Buildup facies member and Bioclastics Platform facies of Minahaki Formation. The lateral distribution of carbonate facies can be delineated to optimize a favorable location for field development.
In this paper we present the results of integrating the sedimentological descriptions of conventional cores with the interpretation of borehole images, conventional logs, and seismic acoustic impedance in order to identify the facies in the reservoirs not being cored.
The technique in combining the electrical borehole images with a full suite of the open hole logs, core data and seismic acoustic impedance which offer powerful means of characterizing lateral facies and pore space distribution as it is confirmed by the 6th well drilled in the field.