Apparatus to Test and Calibrate Azimuthal, Position, and Acceleration Sensors for LWD/MWD Tools
Publication Date: 2014-Oct-31
The IP.com Prior Art Database
A lot of LWD and MWD tools with azimuthal measurement capabilities have the problem that the position and location of the test is important for the test result and the position and azimuthal sensors have to be calibrated. For example the quality of the Airhang calibration for the Extra Deep Azimuthal Resistivity (EDAR) depends on the correct tool orientation (Tool Face up) and the accuracy of the height measurement.