| 摘要 |
A tubular inspection device, which is preferably mobile, is described as comprising an ultrasonic tubular inspection means, preferably in the form of a first moveable sensor head, which is coupled to the device, and preferably further comprises an electro-magnetic tubular inspection means, which is also coupled to the device, and which is in the form of a second moveable sensor head. The ultrasonic and electro-magnetic inspection means are typically capable of inspecting the integrity of a tubular, such as a tubular used in downhole applications such as drillpipe, tubing and casing. A rotation mechanism, preferably in the form of a roller unit, is also coupled to the device and which can provide relative rotation between a tubular to be inspected and the ultrasonic and electro-magnetic tubular inspection means. Transportation means are also provided to permit the device to be moved, and which may be in the form of attachment points to which ropes and the like may be coupled to permit the device to be lifted by, for example, a crane.
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