Borehole nuclear measurements are fundamental for the geosciences in general, and the
petroleum industry in particular. They provide a variety of well logs from which …

Owing to the complex lithology of unconventional reservoirs, field interpreters usually need
to provide a basis for interpretation using logging simulation models. Among the various …

Dans les puits pétroliers, de nombreux outils fonctionnant sur différents principes physiques
sont couramment utilisés pour l'acquisition de données. Cette thèse se concentre sur les …

Nuclear borehole instruments are ubiquitous in well logging—from bare-bones logging-
while-drilling (LWD) gamma to conventional triple-combo and more exotic neutron-gamma …

A multi-step, inversion-based workflow has been developed for analyzing logging-while-
drilling density and neutron measurements in high-angle (HA) and horizontal (HZ) wells …

Anisotropy is defined as a property of the formation that varies depending on the direction of
the measurement being taken regardless of scale. In reality, geological formations are not …

ABSTRACT A Fast Forward Modeling technique is developed to simulate sigma logging
measurements. The technique is based on the Monte Carlo simulations of decay-time …

Nuclear measurements in high-angle wells, such as density, neutron, and sigma logs, are
often affected by shoulder bed effects and should not be processed directly by the methods …