Patent ID: 9196387
Filing Date: 2015-11-24
Classification: G21C,Y02E

Abstract:
1. An apparatus for detecting the location of an annulus spacer between concentric interior and exterior tubes when a temperature gradient is present between an interior surface of the interior tube and an exterior surface of the exterior tube, the apparatus comprising: a probe head assembly movable within the interior tube; at least one temperature sensor coupled to the probe head assembly and configured to detect a temperature of the interior surface of the interior tube; a drive assembly operable to move the probe head assembly relative to the interior tube; and a data acquisition system coupled to the at least one temperature sensor and configured to receive a plurality of temperature measurements in order to identify at least one position along the interior surface of the interior tube having a temperature abnormality in which the temperature of the interior surface of the interior tube is closer to a temperature of the exterior surface of the exterior tube with respect to other positions along the interior surface of the interior tube.