Russell Nde Systems Inc.

Hydroscope Canada Inc.

Hydroscope Cananda Inc.

Pica Pipeline Inspection and Condition Analysis Corporation

Yuwu Yu

David E Russell

Hoan Nguyen

Lawrence B Staples

Rodney K Ridley

Varagur S V Rajan

Maher A Nessim

Brian Thai

Shahani N Kariyawasam

Daniel Lingnau

Jens Winslow

Ankit Vajpayee

Ellen Jin

Jens Cb Winslow

Varagur Sv Rajan

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

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

A method of determining optimal repair options for cast iron and ductile iron water or wastewater pipe sections having a number of pipe-lengths is provided. The method includes the computer-implemented steps of inputting measured pipe-length wall dimensional data, determining pipe failure rates for current and future times based on the input data, defining one or more repair scenarios for the pipe, and determining the pipe failure rates for the defined repair scenarios. The pipe failure rate determinations are provided to the user as an output. The calculation of failure rates includes determining probability of pipe-length failure due to corrosion and determining probability of pipe-length failure due to transverse bending.

Maintenance optimization system for water pipelines

In accordance with the teachings of the present invention, a method is provided for analyzing RFT data from a data file. The method includes parsing the data file into pipe lengths, calculating a phase profile for the data points within each pipe length, locating potential defects in the pipe length using the phase profiles, determining for each defect a total equivalent phase shift as a combination of a circumferential equivalent phase shift and a non-circumferential equivalent phase shift, and using the total equivalent phase shift to analyze the defect.

Method and system for determining pipeline circumferential and non-circumferential wall loss defects in a water pipeline

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Edmonton, Canada

Yuwu Yu