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Several dispersion mechanisms are at play in clay rich shales. Most laboratory measurements show dispersion at low frequencies, and usually more dispersion from seismic to ultrasonic frequencies. Low frequency measurements on pure clay demonstrate that dispersion in clays may not rely on...

This study utilizes GPU computing to perform seismic full waveform inversion, a high-dimensional and ill-posed problem. By employing hybrid Hamiltonian Monte Carlo methods, it enables efficient computation of the posterior distribution under various priors, which regularize the problem. The approach...

Innovative enhanced oil recovery (EOR) technologies are needed to ensure a more economical oil production to meet the growing energy demand. Silica nanoparticles have been widely studied for EOR applications due to their unique physical and chemical properties. Recent studies have proposed a renewed...

Tackling emissions from hydrocarbon production is a necessity because hydrocarbon production will last for a prolonged time. As a popular hydrocarbon production method, waterflooding operation is energy-intensive and accounts for significant CO₂ emissions. This article investigates the effect of CO...

Significance of non-linear elasticity in geomechanical modelling: ‒ Traditional linear elasticity assumptions can lead to inaccuracies in stress prediction, especially when non-linearity is evident at larger geological scales. • Stress path alterations due to non-linear elasticity: ‒ Non-linear...

Since shales are the far most abundant overburden formation, understanding the geomechanical and rock physics behavior of shales is essential. We discuss a particular deep overburden shale in light of a thorough static and dynamic multi-directional data acquisition, as a basis for complete static...

...4D seismic time-shifts are induced by stress changes in the overburden as a result of depletion from or injection into an underlying reservoir. This represents a powerful technique for tracking unrecovered hydrocarbon resources or identifying leakages from CO₂ storage sites. Here we describe how the...

Cuttings transportation is a complex phenomenon involving many inter-acting variables. Experimental investigations on cuttings transport are carried out by different research groups for decades and varying findings are reported which points out to the need for a methodical data analysis approach. In...