The role of high-resolution biostratigraphy in the delineation of reservoir architecture and the potential use of calcareous foraminifera in identifying system tracts

This work was originally conceived as a research-based BSc (Honours) project in conjunction with RMA Group to characterise reservoir architecture of the West Linapacan oil-field, hosted by Lower-Middle Miocene, fractured, siliciclastic and calciclastic sediments of the Northwest Palawan Basin, Philippines. The main carbonate-turbidite reservoir unit was previously modelled with a “layer-cake” stratigraphy, despite a calciclastic submarine fan depositional model and the internal heterogeneity that is often associated with turbidite deposits in this environment. This study aimed to evaluate this stratigraphic model by assessing the vertical and lateral heterogeneity between four wells across the field, utilising a variety of techniques.Understanding the lateral heterogeneity of the reservoir was essential for the optimisation of development wells.