Electricity: measuring and testing – Magnetic – Magnetic sensor within material
Reexamination Certificate
2011-04-12
2011-04-12
Aurora, Reena (Department: 2858)
Electricity: measuring and testing
Magnetic
Magnetic sensor within material
Reexamination Certificate
active
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.
Aurora Reena
Warren M. Pate, LLC
LandOfFree
Spiral magnetic field apparatus and method for pipeline... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spiral magnetic field apparatus and method for pipeline..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spiral magnetic field apparatus and method for pipeline... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2738129