AN ARM SYSTEM FOR LOGGING A WELLBORE AND METHOD FOR USING SAME

摘要

A method and apparatus for logging a wellbore with an arm system is provided. The arm system has a pad (108) for measuring a downhole parameter and a first arm (200) having an arm first end (216) connected to a tool body (220) of the downhole tool and an arm second end (214) connected to the pad. The arm system has a second arm (202) having an arm first end (216) connected to the tool body of the downhole tool and an arm second end connected to the pad. The arm system has a sliding shuffle (204) adapted to allow a portion of the arm system to translate relative to a longitudinal axis (212) of the tool body and a first biasing member wherein the first biasing member (118) and the sliding shuffle are for moving the pad between a closed position proximate the tool body and an engaged position proximate the wellbore wall.