Fluid Flow Simulations on Core Samples Containing Natural Fractures and Stylolites (SPE-113530)

摘要

This study aims to understand the impact of natural open fractures and stylolites on flow in a porous sandstone reservoir by analysing fluid flow behaviour at small scale (core sample). This analysis is done both experimentally and with fluid flow simulations within full core samples. Two core samples (seal peels) from the Sn?hvit field in the SW Barents Sea have been selected. These contain natural open fractures mostly associated with stylolites. Since no test data exist from the intervals with highest fracture intensity, it remains uncertain whether these fractures will affect the flow in the reservoir. Two series of flooding experiments have been conducted on these core samples, one by tracer injection and the other by injecting gas (Nitrogen) in the 100% brine saturated seal peels.