System for estimating fatigue damage
Abstract
In one aspect, a system for estimating fatigue damage in a riser string is provided. The system includes a plurality of accelerometers which can be deployed along a riser string and a communications link to transmit accelerometer data from the plurality of accelerometers to one or more data processors in real time. With data from a limited number of accelerometers located at sensor locations, the system estimates an optimized current profile along the entire length of the riser including riser locations where no accelerometer is present. The optimized current profile is then used to estimate damage rates to individual riser components and to update a total accumulated damage to individual riser components. The number of sensor locations is small relative to the length of a deepwater riser string, and a riser string several miles long can be reliably monitored along its entire length by fewer than twenty sensor locations.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1346964
- Patent Number(s):
- 9593568
- Application Number:
- 14/879,239
- Assignee:
- General Electric Company
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- 11121-5402
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Oct 09
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
LeMonds, Jeffrey, Guzzo, Judith Ann, Liu, Shaopeng, and Dani, Uttara Ashwin. System for estimating fatigue damage. United States: N. p., 2017.
Web.
LeMonds, Jeffrey, Guzzo, Judith Ann, Liu, Shaopeng, & Dani, Uttara Ashwin. System for estimating fatigue damage. United States.
LeMonds, Jeffrey, Guzzo, Judith Ann, Liu, Shaopeng, and Dani, Uttara Ashwin. Tue .
"System for estimating fatigue damage". United States. https://www.osti.gov/servlets/purl/1346964.
@article{osti_1346964,
title = {System for estimating fatigue damage},
author = {LeMonds, Jeffrey and Guzzo, Judith Ann and Liu, Shaopeng and Dani, Uttara Ashwin},
abstractNote = {In one aspect, a system for estimating fatigue damage in a riser string is provided. The system includes a plurality of accelerometers which can be deployed along a riser string and a communications link to transmit accelerometer data from the plurality of accelerometers to one or more data processors in real time. With data from a limited number of accelerometers located at sensor locations, the system estimates an optimized current profile along the entire length of the riser including riser locations where no accelerometer is present. The optimized current profile is then used to estimate damage rates to individual riser components and to update a total accumulated damage to individual riser components. The number of sensor locations is small relative to the length of a deepwater riser string, and a riser string several miles long can be reliably monitored along its entire length by fewer than twenty sensor locations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 14 00:00:00 EDT 2017},
month = {Tue Mar 14 00:00:00 EDT 2017}
}
Works referenced in this record:
Disconnect information and monitoring system for dynamically positioned offshore drilling rigs
patent, November 1999
- Stockton, Thomas R.
- US Patent Document 5,978,739
Instrumentation assembly for an offshore riser
patent, July 2006
- Guesnon, Jean; Vaisberg, Olivier; Pignard, Guy
- US Patent Document 7,080,689
System for sensing riser motion
patent, February 2008
- Allen, John K.; Pinto, Antonio
- US Patent Document 7,328,741
Apparatus and method for retroactively installing sensors on marine elements
patent, July 2008
- Allen, Donald Wayne; McMillan, David Wayne
- US Patent Document 7,398,697
Composite riser with integrity monitoring apparatus and method
patent, May 2010
- Salama, Mamdouh M.
- US Patent Document 7,721,611
Riser lifecycle management system, program product, and related methods
patent, December 2011
- Radi, Amin
- US Patent Document 8,074,720
System and method for monitoring strain
patent, March 2016
- Balasubramaniam, Mahadevan; Rubinsztajn, Slawomir; Koste, Glen Peter
- US Patent Document 9,279,666
Comparison of Neural Network Error Measures for Simulation of Slender Marine Structures
journal, January 2014
- Christiansen, Niels H.; Voie, Per Erlend Torbergsen; Winther, Ole
- Journal of Applied Mathematics, Vol. 2014