BZM-H mechanical drift indicator

Application: Type BZM-H Drift Indicator is the most dependable and practical method of mechanically determining the deviation from vertical in a wellbore. Features: Non-vertical wellbores take a toll on the drill string in terms of greatly increased stress and friction. Bits do not cut as efficiently. More power is needed to rotate and pull out of a crooked hole. Fishing jobs become more frequent. Redrilling and mechanical hole-straightening devices become necessary. So simple to operate, virtually any member of the crew can operate the instrument, and he can read the charts with ease. Everything is mechanical so no liquid or electrical equipment is required. Techinical parameter: Measuring range0°----20°Precision±1°Max. working temperature90Max. pressure70MPaOD of probe tube Φ31.75mmOD of extral protecting cartridgeΦ41.28mmDepth of well≤1000m BZM-H mechanical drift indicator