Russell Nde Systems Inc.

Pica Pipeline Inspection and Condition Analysis Corporation

David E Russell

Yuwu Yu

Hoan Nguyen

Daniel Lingnau

Ellen Jin

David Burton

Brian Thai

Ankit Vajpayee

A system to retrieve a buoyant leak detector () traveling with the fluid flowing in a pipeline (), includes a catchment device () located above the bottom interior of the pipeline. Flexible, elongate manifold structures () are constructed with fluid outlet openings () extending along the manifold structures. The manifold structures are deployable to lie across the lower inside perimeter of the pipeline, upstream from the catchment device. A source of pressurized air is routed to the manifold structure, whereby air bubbles are emitted from the nozzles of the manifold structure to form a sheet or curtain of air bubbles that flow in the direction downstream of the fluid flow in the pipeline and at an angle upwardly from the location of the manifold structures to cause the leak detector to be deflected by the bubble curtain toward the catchment device.

System and method for retrieving in-line leak detection devices

A probeincludes exciter unitsarranged in an array and detector unitsand, also arranged in arrays, with the arrays positioned proximal to and in the shape of the exterior circumference of an individual boiler tube. The detector unitsare 'absolute' coil detectors which are used to detect and quantify general wall loss, for example, resulting from steam impingement erosion. The detectorsare differential, axial pairs which are used for detecting pits in the boiler tubers. The exciter units and detector units are mounted in a stainless steel housingof the probe. The housingis shaped to closely match the contour of the boiler tube. The probe can be moved along the boiler tubes by hand to inspect the flame side of boiler tubes, one at a time. Wheelsare provided to roll the probe along the boiler tubes.

Apparatus and method of detecting defects in boiler tubes

An in-line inspection (ILI) toolfor use inspecting pipelines includes a plurality of collapsible guide centralizersconfigured and sized to correspond to the inside diameter of the pipeline being inspected. The guide centralizesinclude wheelsroll along the inside wall of the pipeline being inspected to maintain the guide centralizers 'centered' within the pipeline. A collapsible exciter unit centralizeris positioned between collapsible guide centralizersto 'center' the exciter unit centralizer relative to the interior of the pipeline. The exciter unit centralizergenerates signals in the form of an alternating magnetic field that travel along the wall of the pipeline which in turn generates eddy current signals. The eddy current signals undergo a change if a discontinuity in the pipeline is encountered by the inspection tool, which signal change or deviation is detected by a collapsible detector unit centralizerpositioned between the collapsible guide centralizers

Collapsible pipeline inspection tool

A probe including a plurality of links connected together in series, wherein the plurality of links create a flexible compartment containing at least a first and second exciter means and at least one pair of detector means, wherein the exciter means are driven by an alternating current to produce an alternating magnetic field, and the detector means are configured to detect the magnetic field of an induced eddy current caused by the exciter means magnetic field.

Method and apparatus for the detection of corrosion under insulation (CUI), corrosion under fireproofing (CUF), and far side corrosion on carbon steel piping and plates

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Edmonton, Canada

David E Russell