Sampling and Analysis

2 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Seamless Pipe Condition: Damage Capture method: Aspect Before Analysis clear all

Sampling and Analysis — sub-branches

At the Surface 1External Surface 1General View 1Internal Surface 1

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General view of the 2" branch line that was supporting an instrument in a 12" gas piping of an offshore unity. The branch line is composed by a seamless pipe welded to a weldolet (left side of the figure) and to a flange (right side of the figure). The leakage is associated to a through wall cracking in the middle of the pipe length. The cracking is not evidenced in the figure, since it is too thin. See the schematic drawing in the next figure
494
VIEW
ML00012 / Aug.2017
Vibration Induced Fatigue in a 316/316L SS
M - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - General View
Aspect of the washout in the 5" drill pipe, in the pipe body, before cleaning the surface.
684
VIEW
ML00068 / Sep.2020
Corrosion Fatigue of a 5" Drill Pipe
M - Low Alloy Medium Carbon QTP - Seamless PipeAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Aspect Before AnalysisDf - At the Surface

More from these cases

ML00012 — Vibration Induced Fatigue in a 316/316L SSM - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Aspect of the internal surface of the pipe after longitudinal cutting, presenting a straight cracking, circumferential. The weldolet is to the left side and the flange is to the right side. See the schematic drawing in the next figure.
89
VIEW
ML00012 / Aug.2017
Vibration Induced Fatigue in a 316/316L SS
M - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - Internal Surface
Circumferential cracking in the middle of the pipe, view from the external side. Several pits close to the cracking.
57
VIEW
ML00012 / Aug.2017
Vibration Induced Fatigue in a 316/316L SS
M - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - External Surface