Summary A new technology of logging-while-drilling (LWD) high-resolution borehole imaging was deployed in Colombian foothills for the first time to characterize the subsurface geological complexity and understand the interplay of faults, fractures, stress-induced fractures and reservoir facies distribution. The tool was added to drilling borehole assembly with four ultrasonic and two electromagnetic sensors mounted on it. High fidelity realtime images help with realtime operational decisions related to well-drilling and completion. Subsequent interpretation of amplitude, travel-time, resistivity and standoff images from recorded mode data provided detailed interpretation and classification of geological features (sedimentological and structural) and drilling-related events (geomechanical features) in addition to petrophysical analysis. It helped with classification of fractures, completion optimization and near well geological understanding without the need to run any post-drilling wireline logging that faces challenges due to difficult drilling conditions and wellbore instability. Learnings from this work helped plan field-wide efficient well-logging operations with new approach amidst difficult drilling conditions.