EMAT for Coiled-Tubing Wall Thickness and Ovality Measuring

Abstract:

This paper presents a new wall thickness and ovality measuring method engineered for reliable field use. This paper describes the electromagnetic ultrasonic technique in coiled tubing detection. This paper describes requirements for Coiled Tubing specifications, which measuring different parameters, some of which include diameter, ovality, and wall thickness. This method not only thickness measurements but also ovality measuring will be made. This article discusses the electromagnetic ultrasonic thickness measurement of the system components, and experimental tests have shown. Ovality measurement sensor layout is designed. This paper discusses the development of this new methods, this system is suitable for non-contact, real-time, on-line high-speed data measurements.

• Periodical: Applied Mechanics and Materials (Volumes 105-107)
• Pages: 1903-1907
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.105-107.1903
• Online since: September 2011
• Authors: Zhao Ming Zhou, Fu Wan, Lei Wang, Zhang Hua Lian, Yong Chen
• Keywords: Coiled Tubing, EMAT, Non-Contact, Ovality, Wall Thickness

References

[1] Z.M. Zhou, F. Wan,etc. Comprehensive Description of Coiled Tubing Detection Technologies. Oil Field Equipment, (2011) No.4, pp.9-13. (In Chinese)

[2] McCoy T,Rosine R,Aulert C. HPHT Wells Create New Challenges Demanding Higher Levels of Coiled Tubing Inspection and Management[R].SPE 74830,2002,9-10.

DOI: 10.2118/74830-ms

[3] Bray,Don E, and Stanley, Roderic K. Nondestructive Evaluation- A Tool in Design, Manufacturing and Service, CRC Press 1997, and NDT Handbook, Vol. IV, pub. American Society for Nonde structive Testing (ASNT) 1994.

[4] Stanley, Roderic K, :An Overview of the Nondestructive Inspection Techniques for Coiled Tubing," Proc. Intl. Coiled Tubing Assn., Aberdeen, Sept 1996, and Stanley, Roderic K, "Overview of the Nondestructive Inspection Techniques for the Evaluation of Coiled Tubing and Pipe," Mater. Eval. 54 (11) pp.1245-50, Nov 1996.

DOI: 10.2118/89521-ms

[5] "Specification for Coiled Line Pipe," American Petroleum Specification 5LCP, pub. API December 1999.

[6] Stanley, Roderic K. Failures in Coiled Tubing, 5th Intl. Conf. On Coiled Tubing and Well Intervention, Feb 1997, pub. Gulf Publishing, and Stanley, Roderic K "An Analysis of Failures in Coiled Tubing," IADC/SPE Paper 39352, Proc. IADC/SPE Conf, Dallas, TX, Mar 1998.

DOI: 10.2118/39352-ms

[7] MacArthur, J. et al. "Coiled Tubing NDT Inspection: Implementation, Experience, and Results," SPE paper 56940, Proc. SPE/Icota Conf., Houston, TX, May 2000. See also all papers, Proceedings of Drilling Engineering Association meeting DEA-67, Aberdeen, Scotland, and March 2000.

DOI: 10.2118/56940-ms

[8] Kenneth R. Newman. A New Approach to Ultrasonic Coiled Tubing Inspection[R]. SPE81722, 2003:8-9.

[9] US Patent 5,914,596 - Coiled Tubing Inspection System.

[10] US patent 5,303,592 - Method and Apparatus for Coiled Tubing Inspection.

[11] Peter B. et al. The Use of Non-Intrusive Ultrasonic Intelligent Sensors for Corrosion and Erosion Monitoring[R].SPE International Conference on Oilfield Corrosion held in Aberdeen, United Kingdom, SPE129738, 2010.

[12] Roderic K,Stanley. New Results From Electromagnetic and Ultrasonic Inspections of CoiledTubulars[R]. SPE,itRobotics and CTRM,SPE 121810,2009.

[13] Harbers P,Rosen. Online Detection of Coiled Tubing Anomalies on a Small Scale for Safe CT Operations[R]. Inspection Technologies, SPE94155,2005:12-13.

DOI: 10.2118/94155-ms