Spiral magnetic field apparatus and method for pipeline...

Electricity: measuring and testing – Magnetic – Magnetic sensor within material

Reexamination Certificate

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Reexamination Certificate

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07923994

ABSTRACT:
A system and method are disclosed for inspecting the wall of a pipeline while traveling therethrough. The system may comprise a portion of pipe comprising a pipe wall forming a cylindrical tube defining a circumferential direction and an axial direction. The system may further include an in-line inspection tool positioned within the portion of pipe. The in-line inspection tool may include a frame extending in the axial direction and at least one magnet connected to the frame and positioned to generate a magnetic field. The magnetic field may be orientated obliquely with respect to the circumferential and axial directions of the pipeline. The inspection tool may include a transmitter connected to the frame to generate an inspection signal within the magnetic field.

REFERENCES:
patent: 3786684 (1974-01-01), Wiers et al.
patent: 4100809 (1978-07-01), Bobrov et al.
patent: 4127035 (1978-11-01), Vasile
patent: 4295214 (1981-10-01), Thompson
patent: 4691572 (1987-09-01), van den Berg et al.
patent: 5085082 (1992-02-01), Cantor et al.
patent: 5454276 (1995-10-01), Wernicke
patent: 5537876 (1996-07-01), Davidson et al.
patent: 5565633 (1996-10-01), Wernicke
patent: 6065348 (2000-05-01), Burnett
patent: 7548059 (2009-06-01), Thompson et al.
patent: 2009/0078048 (2009-03-01), Alers et al.
Beuker, Thomas et al., “SCC Detection Improvement Using High Resolution EMAT Technology,” International Pipeline Pigging, Integrity Asssessment and Repair Conference, Houston, TX, Feb. 5-6, 2004.
Shevaldykin, V.G. et al., “EMA Transformation in Pulsed Magnetic Field and its Use in Portable Instruments for Acoustic Measurements,” 16th World Conference on NDT, Montreal, Canada, Aug. 30-Sep. 3, 2004.
Aron, Jeff et al., “Development of an EMAT In-Line Inspection System for Detection, Discrimination, and Grading of Stress Corrosion Cracking in Pipelines,” U.S. Department of Energy Award No. DE-FC26-01NT41154, Feb. 2005.
Klann, Martin et al., “Pipeline Inspection with the High Resolution EMAT ILI-Tool: Report on Field Experience,” Proceedings of IPC 2006 6th International Pipeline Conference, Calgary, Alberta, Canada, Sep. 25-29, 2006.
Beuker, Thomas et al., “In-line Inspection with High Resolution EMAT Technology Crack Detection and Coating Disbondment,” International Pipeline Pigging, Integrity Assessment and Repair Conference, Houston, TX, Feb. 12-13, 2008.

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