Field Measurements and Inversion Results of the High-Definition Lateral Log

摘要

The High-Definition Lateral Log (HDLL) tool is a type of a Multi-electrode Resistivity Tool (MERT). It is a new tool that has been developed in a joint project between WALS (Western Atlas Logging Services) and Shell. The tool was developed to address shortcomings with conventional dual laterolog (DLL) technology (restricted vertical resolution, artefacts in deviated boreholes). The new tool has a single current-injection electrode and 18 potential measurement electrodes at various distances from the injection electrode.