Sanderson, R. M.; Catton, P. P.
June 2011
AIP Conference Proceedings;6/23/2011, Vol. 1335 Issue 1, p689
Conference Proceeding
The absence of adequate inspection data from difficult-to-access areas on pipelines, such as cased-road crossings, makes determination of fitness for continued service and compliance with increasingly stringent regulatory requirements problematic. Screening for corrosion using long-range guided wave testing is a relatively new inspection technique. The complexity of the possible modes of vibration means the technique can be difficult to implement effectively but this also means that it has great potential for both detecting and characterizing flaws. The ability to determine flaw size would enable the direct application of standard procedures for determining fitness-for-service, such as ASME B31G, RSTRENG, or equivalent for tens of metres of pipeline from a single inspection location. This paper presents a new technique for flaw sizing using guided wave inspection data. The technique has been developed using finite element models and experimentally validated on 6″ Schedule 40 steel pipe. Some basic fitness-for-service assessments have been carried out using the measured values and the maximum allowable operating pressure was accurately determined.


Related Articles

  • Interaction of Lamb Waves with Geometric Discontinuities: An Analytical Approach Compared with FEM. Poddar, Banibrata; Giurgiutiu, Victor // AIP Conference Proceedings;2015, Vol. 1650 Issue 1, p721 

    The non-destructive testing of materials can be conducted by various techniques. Amongst these, method based on ultrasonic waves is one of the most common one. Of these ultrasonic waves Lamb waves are of particular interest for the inspection of large structures for various reasons. Scattering...

  • Effects of Hydrogen on the Corrosion Failure of Welded Pipelines. Makarenko, V.; Khalin, A. // Chemical & Petroleum Engineering;Jul/Aug2005, Vol. 41 Issue 7/8, p448 

    Test data are presented for specimens of steels 20, 09G2S, and 14Kh2GMR provided by a method corresponding to the standard NACE TM-01-77. It is found that the work of failure as a time function is related to the hydrogenation volume.

  • A method to estimate the size of corrosion patches with guided waves in pipes. Carandente, R.; Cawley, P. // AIP Conference Proceedings;5/18/2012, Vol. 1430 Issue 1, p1929 

    In the past a method has been proposed to determine the maximum depth of real corrosion patches by knowing the maximum of the reflection from the discontinuity and its circumferential extent. This method breaks down in presence of a general corroded area with a sharp change in depth in a small...

  • QUANTIFICATION OF DEFECT SIZE FROM LONG RANGE GUIDED WAVE ULTRASONIC TESTS ON PIPES. Mudge, Peter J.; Catton, Phil // AIP Conference Proceedings;2/28/2008, Vol. 975 Issue 1, p147 

    The application of long range guided wave ultrasonic tests for pipes and pipelines has gained considerable support in recent years as a rapid screening tool for detection of corrosion and other degradation, particularly for inaccessible sections. However, its usefulness has been limited by the...

  • CAPACITIVE IMAGING TECHNIQUE FOR NDE. Yin, X.; Hutchins, D. A. // AIP Conference Proceedings;6/23/2011, Vol. 1335 Issue 1, p752 

    The Capacitive imaging (CI) technique is introduced in this paper as a non-destructive evaluation (NDE) tool. The fundamentals of the CI technique are presented. Finite element simulations were carried out to demonstrate the physical principles of this technique and characterize the CI probes....

  • Estimation of Burst Pressure of Corroded Pipeline using Finite Element Analysis (FEA). Karuppanan, Saravanan; Wahab, Azmi Abdul; Patil, Santosh; Zahari, Mohamad Armiya // Advanced Materials Research;2014, Issue 879, p191 

    One major concern in maintaining pipeline structural integrity is failure due to corrosion defects. Various tests and codes had been established to assess the corroded pipelines. Burst test is one of the tests being conducted in the lab to assess the integrity of the pipelines. The advancement...

  • Burst Pressure Estimation of Corroded Pipeline with Interacting Defects Using Finite Element Analysis. Karuppanan, S.; Aminudin, A. S.; Wahab, A. A. // Journal of Applied Sciences;12/15/2012, Vol. 12 Issue 24, p2626 

    Failure due to corrosion defects has been the major problem in maintaining pipeline integrity. The loss of metal due to corrosion usually results in localized pits with various depth and irregular shapes which occur on its external and internal surfaces. An interacting defect is one that is...

  • Stray-Current Corrosion Criteria for Underground Steel Pipelines. Freiman, L.I. // Protection of Metals;Mar/Apr2003, Vol. 39 Issue 2, p172 

    An electrochemical approach to the choice of criteria for dangerous corrosion effects of stray currents on underground steel pipelines is present.

  • New Alternatives in Corrosion Protection for Steel Pipelines. Stephens, Byron // Pipeline & Gas Journal;Jul2004, Vol. 231 Issue 7, p79 

    Reports on the corrosion protection products offered by SHAIC International for steel pipelines for the oil, gas and water industries. Specialization of the company in heat shrinkable products for protection of girth welds and steel fittings.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics