Experimental investigation and mechanistic analysis of ultrasonic-transient electromagnetic simulation technology

Le résumé fourni par la source

Abstract The efficient extraction of low-permeability, high-viscosity reservoirs presents critical challenges for sustainable reservoir development, particularly regarding formation damage mitigation and long-term geological integrity. The Ultrasonic-Transient Electromagnetic (U-TEM) stimulation technique addresses these geological engineering concerns through synergistic physical effects that enhance fluid flow while preserving reservoir fabric. This study systematically evaluates U-TEM’s geomechanical impacts using core-scale experiments and digital rock simulations. Results demonstrate that ultrasonic cavitation removes pore blockages without chemical dissolution, while transient electromagnetic fields improve fluid distribution through electrokinetic processes-collectively enhancing permeability while maintaining original rock properties, as verified by nuclear magnetic resonance (NMR) and Micro-CT analysis. Compared to conventional methods that risk mineral dissolution (acidizing) or fracture network destabilization (hydraulic fracturing), U-TEM provides geologically sustainable stimulation through its chemical-free operation and controlled physical modification of pore networks. The technology’s non-invasive nature is further evidenced by field applications showing stable long-term performance without wellbore integrity compromise in heterogeneous formations. From an engineering geology perspective, this work establishes U-TEM as a formation-friendly alternative that combines production enhancement with reservoir preservation, offering solutions for environmentally sensitive development of unconventional resources.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.