Title:
METHOD OF CALCULATION LOADS ON A SUBSEA COMPONENT.
Document Type and Number:
WIPO Patent Application WO/2014/064190
Kind Code:
A3
Abstract:
Method for estimating section forces including bending moments on a subsea component, the subsea component being connected to a riser and a well, wherein the method comprises the steps of; -measuring the section forces and/or deformations in a lower section (A) and a first upper section (B) at the lower part of the riser by the use of at least two independent measuring devices, -measuring the inclination and acceleration of the subsea component using a set of sensors placed in a location of the subsea component (section E), -calculating the section forces for any section (Z) of the subsea component by the use of a processing device adapted for receiving data from said measuring devices and performing calculations, the calculations involving: -an assessment of dynamic equilibrium for the subsea component and the part of the riser below the lower section (A)including load terms - considering the magnitude and directionality of section forces in the section (A), and - gravitational and inertia forces for the subsea component based on said measurements.
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Inventors:
MOE PER THOMAS (NO)
MOGENSEN ANDERS (NO)
LIU JUNYAN (NO)
MOGENSEN ANDERS (NO)
LIU JUNYAN (NO)
Application Number:
PCT/EP2013/072262
Publication Date:
August 28, 2014
Filing Date:
October 24, 2013
Export Citation:
Assignee:
FMC KONGSBERG SUBSEA AS (NO)
International Classes:
E21B41/00; G06F17/00
Domestic Patent References:
| WO2005091712A2 | 2005-10-06 |
Foreign References:
| US20060065401A1 | 2006-03-30 | |||
| US20030230409A1 | 2003-12-18 | |||
| US20050100414A1 | 2005-05-12 |
Other References:
KARL KAASEN ET AL: "Norwegian Deepwater Program: Analysis of Vortex-Induced Vibrations of Marine Risers Based on Full-Scale Measurements", COPYRIGHT, 1 May 2000 (2000-05-01), pages 1 - 11, XP055124422, Retrieved from the Internet [retrieved on 20140620]
OTÁVIO DE BRITO COLLAÇO VERAS; PETER JAMES SIMPSON ET AL: "A SYSTEM FOR MEASURING WELLHEAD BENDING MOMENTS DURING COMPLETION OPERATIONS", 31 December 2008 (2008-12-31), DOT Asia, XP055124437, Retrieved from the Internet [retrieved on 20140620]
MARTINE KVALBEIN: "Riser and well head load monitoring", 31 December 2013 (2013-12-31), XP055124587, Retrieved from the Internet [retrieved on 20140623]
OTÁVIO DE BRITO COLLAÇO VERAS; PETER JAMES SIMPSON ET AL: "A SYSTEM FOR MEASURING WELLHEAD BENDING MOMENTS DURING COMPLETION OPERATIONS", 31 December 2008 (2008-12-31), DOT Asia, XP055124437, Retrieved from the Internet
MARTINE KVALBEIN: "Riser and well head load monitoring", 31 December 2013 (2013-12-31), XP055124587, Retrieved from the Internet
Attorney, Agent or Firm:
ONSAGERS AS (Oslo, NO)
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