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1 case · 2 images for “fatigue”

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: API Capture method: Aspect Before Analysis clear all

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Fracture position at the pipe body, about 1 meter from the tool joint end. The fracture presented two main aspects, a flat fracture transverse to the pipe axis, that propagated by fatigue through almost 50% of the pipe perimeter, and a final fracture by shear overloading.
560
VIEW
ML00169 / Nov.2020
Drill Pipe Fracture in the Pipe Body
M - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Aspect Before AnalysisDf - General View

More from these cases

ML00169 — Drill Pipe Fracture in the Pipe BodyM - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Corrosion Fatigue
This figure presents the location of the fracture at about 1 meter from the tool joint pin side. Close to the fracture the pipe presented several circunferential scratches created by the fishing of the broken piece after the fracture.
58
VIEW
ML00169 / Nov.2020
Drill Pipe Fracture in the Pipe Body
M - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Aspect Before AnalysisDf - General View