Fault-related fracture modeling in the complex tectonic environment of the Malay Basin, offshore Malaysia: An integrated 4D geomechanical approach

摘要

In the South-East prong of Eurasia prevails a positive tectonic inversion, where the Malay Basin and its complex oil and gas reservoirs were formed. Therefore, the characterization of the natural fracture network originated from the complex multi-tectonic events of this area remains challenging. This contribution presents a 4D innovative approach for improving the geomechanics-based assessment of fault-related fractures in such exigent environment. The workflow consists of several steps to reduce uncertainties in the fractured reservoir modeling, both in estimating (i) the paleo-geometry of the main structures using 3D reconstruction techniques and (ii), the paleo-tectonic stresses using fracture-based stress inversion technology, both steps being essential to comprehensive geomechanical simulations through geological time.