... Drilling directional well Reservoir Navigation sandstone inclination resistivity geosignal boundary horizontal well society of petroleum engineers Upstream Oil & Gas correlation investigation azimuthal resistivity lateral section high geological uncertainty petrophysical characteristic...

... of the radioactive isotopes in the overlying and underlying clays of the reservoir. real time system geosteering Reservoir Navigation trajectory drilling operation information petrophysical property structural change spectral information left cross-plot well trajectory Colombia azimuthal...