BOREHOLE CASING DEPLOYMENT DETECTION

A casing deployment apparatus includes a processing resource with a signal pattern recognition engine unit (420), a tubular measurement unit (404) and a decision unit (416). A first sensor input (402) and a second sensor input (406) are attached to the pattern recognition unit (420) and receive first sensor data and second sensor data corresponding to first and second time-varying sensor signals. The pattern recognition unit (420) analyzes a characteristic of the first sensor data to determine whether the characteristic is substantially consistent with a first expected characteristic of the first sensor data associated with deployment of casing in a borehole. The tubular measurement unit (404) analyzes a characteristic of the second sensor data in order to determine whether the characteristic is substantially consistent with a second expected characteristic of the second sensor data associated with the deployment of the casing.