Hwa Ok Lee

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—Electrical logging-while-drilling (LWD) tools are commonly used in oil and gas exploration to estimate the conductivity (resistivity) of adjacent earth media. In general, earth media exhibit anisotropic conductivities. This implies that when LWD tools are used for deviated and horizontal drilling, the resulting borehole problem may include dipping-layered(More)
—Logging-while-drilling (LWD) borehole sensors are used to provide real-time resistivity data of adjacent Earth formations for hydrocarbon exploration. This allows for an proactive adjustment of the dipping angle and azimuth direction of the drill, and hence geosteering capabilities. The analysis of borehole eccentricity effects on LWD sensor response in(More)
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