Borehole inclination or course measurement device has a measurement unit that is lowered into the borehole using a measurement body that is precisely centered before position measurements are made

摘要

Method for determining the inclination or course of the axis of a borehole using a measurement unit (4) with an inclination sensor that is lowered into the hole using a measurement body (2) using a centering device (7, 8) for centering against the inner walls of the borehole. The measurement body can only be centered in measurement positions in the borehole with a centering element activated to ensure it is moved to a centered position. The invention also relates to a corresponding device.