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1. (WO2017037432) MARINE RISER COMPONENT AND METHOD OF ASSESSING FATIGUE DAMAGE IN A MARINE RISER COMPONENT

Pub. No.:    WO/2017/037432    International Application No.:    PCT/GB2016/052655
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 27 01:59:59 CEST 2016
IPC: E21B 47/00
E21B 17/01
Applicants: OIL STATES INDUSTRIES (UK) LIMITED
Inventors: BORG-BARTOLO, David
MORGAN, David
Title: MARINE RISER COMPONENT AND METHOD OF ASSESSING FATIGUE DAMAGE IN A MARINE RISER COMPONENT
Abstract:
A marine riser component which has an integrated fatigue damage sensor in which the sensor is adapted to be damaged by stresses and strains applied to the marine riser component, and is adapted to record said damage on the sensor. The sensor is optionally integrated into the body of the marine riser component in a location on the component that transmits fatigue loads to the sensor at a known stress concentration factor, optionally in a recess on the body, for example, in a closed recess on an outer surface of the marine riser component.