Real-time true resistivity estimation for logging-while-drilling tools

摘要

Systems, methods, and devices for evaluation of an earth formation intersected by a borehole using a logging tool. Methods include making EM measurements on a single logging run while drilling using an EM tool on a tool string in a substantially horizontally aligned section of the borehole at a plurality of borehole depths; estimating, at each of the plurality of borehole depths, a true resistivity of a volume of interest of the formation in which the tool sits in substantially real time while on the single logging run while drilling.