Utilizing a Newly Developed Approach (LINS) for the Subsurface Identification of Complex Stratigraphy in Clastic Reservoirs

This paper documents the utilization of the recently developed Lithostratigraphic Interpretation using Neutron capture Spectroscopy (LINS) method by Khalifa et al., (2020) for use in the lithostratigraphic determination of complex clastic formations distinguishing the glacial and subglacial sediments from the fluvio-aeolian sediments. LINS method has been applied using a blind-test of four cored wells that were not used to build the initial model. Wireline data have been used exclusively to determine the reservoirs lithostratigraphy and then verified against the core sedimentologic description. By using LINS, it was possible to determine the correct lithostratigraphy in absence of core samples. Moreover, identification of each lithostratigraphic unit using this method can be achieved for entirety of the drilled formation interval. These results reduce the uncertainty in well placement and allow the modelling of un-cored wells.