2024
DOI: 10.1021/acs.energyfuels.3c01949
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Impacts of a New Drilling Fluid Invasion on Electrical Resistivity and Acoustic Velocity Measurements

Rafaella R. Baggieri,
Antonio A. G. Carrasquilla,
Marco A. R. Ceia
et al.

Abstract: When mud filtrate invades a geological formation, it alters its physicochemical characteristics. This invasive process divides the formation into four zones: mud cake, flushed zone, and transitional; immediately after that, there is a virgin area. Each of these zones contains a mixture of fluids: drilling fluids and original formation fluids. Thus, all well-logging measurements are influenced by mud filtrate invasion. The goal of this research was to analyze the effects of a new drilling fluid system invasion,… Show more

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