Fracture corridor identification through 3D multifocusing to improve well deliverability, an Algerian tight reservoir case study

Elastic immersive wave experimentation

“…Since the 2000s, physical modeling has become popular again due to many applications related to complex wave phenomena, including attenuation (Zhu et al, 2007), anisotropy (Yang et al, 2016;Qi et al, 2015), dispersion (Bodet et al, 2009), and nonlinearity (Guyer & Johnson, 2009). These wave-physics phenomena are associated with multi-scale fine structures such as microscopic and mesoscopic fractures in rocks and strongly depend on frequency (King, 2002;Pinto et al, 2018;Nosjean et al, 2020). These phenomena cannot be comprehensively studied through numerical modeling, which commonly involves media with an equal response to different frequencies.…”

“…Since the 2000s there has been a resurgence of physical modeling research and development due to a wide range of interest in, amongst others, material anisotropy (Yang et al, 2016;Qi et al, 2015;Tsvankin, 2012), fracture characterization (King, 2002;Pinto et al, 2018;Nosjean et al, 2020), noise interferometry (Snieder et al, 2002;Curtis et al, 2006;Wapenaar et al, 2010) and wave-based imaging, tomography and inversion applications (Duan et al, 2017;Fichtner, 2010;Brenders & Pratt, 2007). These wave phenomena and associated applications can be challenging to study using numerical modeling.…”

“…Recomputing the full wavefield while performing only local wavefield simulations on a sub-domain that encloses the model alterations would significantly reduce the required computational resources, so this has been an active area of research in exploration geophysics and seismology (e.g., Lin et al, 2019;Jaimes-Osorio et al, 2021;Aaker et al, 2020;Pienkowska et al, 2020). Local-domain modeling can also be applied for investigating a target of interest inside a sub-volume of a medium, for example, in nondestructive testing where damage zones are commonly highly localized (e.g., fracture corridors, see Nosjean et al, 2020;Zerbst et al, 2016;Wiggenhauser et al, 2018), in medical acoustics where modeling targets are often local organs such as a beating artery or liver fat (e.g., Kyriakou, 2015;Solovchuk et al, 2015;Robertson et al, 2017), and in modeling of electromagnetic waves such as for ground-penetrating radar (GPR) which are often used to detect a local target in the Earth's subsurface (Lambot et al, 2004;Hartley et al, 2018;Akinsunmade et al, 2019). Particularly for imaging and inversion in all of these fields (e.g., Guyer & Johnson, 2009;Duan et al, 2017;Beach & Dunmire, 2007;Mari & Mendes, 2012;Ning & Sava, 2019;Wang et al, 2020), local-domain simulations may be useful to save computational cost compared to simulating full models.…”

Introduction: geology of fractured reservoirs

“…Olson (2004) has shown using mechanical modelling that clusters of joints may occur spontaneously in a growing set of fractures due to the interaction of the stress fields around each fracture. Hence prediction of fracture corridors is challenging and there is a reliance instead on direct detection using well data or seismic techiques (Ozkaya 2007;Nosjean et al 2020).…”

Multi-scale fracture prediction and characterization method of a fractured carbonate reservoir

“…Ofoegbu (Ofoegbu and Smart 2019) introduced a program for modeling the initiation, deformation, and propagation of discrete fractures in continuous rock analysis and provided numerical simulation. Nosjean (Nosjean et al 2020) carried out comprehensive fracture research on a tight reservoir of the Upper Ordovician in Algeria. The study proposed that using 3D-focused diffraction energy technology can greatly assist in characterizing fractures.…”