Tubular inspection unit

G - Physics – 01 – N

Patent

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Details

G01N 29/04 (2006.01) G01M 3/00 (2006.01) G01N 27/00 (2006.01) G01N 27/82 (2006.01) G01N 27/90 (2006.01) G01N 29/22 (2006.01) G01N 29/24 (2006.01) G01N 29/265 (2006.01)

Patent

CA 2246521

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.

Un dispositif d'inpection tubulaire, qui est de préférence mobile, est décrit comme comprenant un moyen d'inspection tubulaire ultrasonique, de préférence sous forme d'une première tête de capteur mobile, couplée au dispositif, et comprenant aussi de préférence un moyen d'inspection tubulaire électromagnétique, couplé également au dispositif et qui se présente sous forme d'une deuxième tête de capteur mobile. Les moyens d'inspection ultrasonique et électromagnétique sont typiquement capables d'inspecter l'intégrité d'un tubage, tel un tubage utilisé dans des applications en fond de trou, notamment un tube de forage, un tube de production et un cuvelage. Un mécanisme de rotation, de préférence sous forme d'un appareil à rouleaux, est également couplé au dispositif et peut assurer une rotation relative entre un tubage à inspecter et le moyen d'inspection tubulaire ultrasonique et électromagnétique. Des moyens de transport sont également prévus pour permettre le déplacement du dispositif, lesquels peuvent se présenter sous forme de points d'attache auxquels des câbles peuvent être couplés pour permettre le levage du dispositif, par exemple par une grue.

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