LOGGING TOOL SONDE SLEEVE

摘要

A logging tool for use in a wellbore having a sensor portion for making measurements. The tool has a first sleeve enclosing the sensor portion and made of a material that is transparent to the measurements being made. The logging tool also includes one or more stand-off sleeves carried on the logging tool and having grooves to permit fluid flow and ridges to minimize contact between the first sleeve and the wellbore wall or casing.