دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: heavy-duty paper perforated with several very small holes (pores). Folded in accordion pleats, micropore paper often serves as a secondary filter element in an engines fuel system. Fuel passes through the pores, while the unperforated part of the paper stops dirt. microresistivity log n: a resistivity logging tool consisting of a spring device and a pad. While the spring device holds the pad firmly against the borehole sidewall, electrodes in the pad measure resistivities in mud cake and nearby formation rock. See resistivity well logging.