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Development of a Guided Long Range Ultrasonic Inspection System for the examination of offshore subsea Risers, Steel Catenary Risers (SCRs) and Flowlines

Objective

In the ever-increasing search by oil majors for new fields and with the advent of advanced drilling and extraction technologies, very deep-water offshore fields are now being developed in the Gulf of Mexico, offshore Brazil and offshore West Africa. There have been significant engineering difficulties to overcome to make the development of deep-water offshore fields possible. However, there are still Non-Destructive Testing (NDT) and inspection problems to solve. One such significant concern is the in-service NDT and inspection of the subsea risers, steel catenary risers (SCRs) and subsea flowlines. Once installed in their subsea environment, conventional NDT techniques will be impossible to apply to these components. Although the pipes comprising these components are manufactured and welded to the highest standards, they nevertheless need to be able to operate for 20 years or more without failure. Fatigue analysis shows that the 'start of life' defect size to ensure that failure will not occur is small (in the region of a mm or so through thickness dimension). It is inevitable that some welding defects of that size will go undetected at the manufactured weld NDT and inspection stage. Some parts of the SCRs (particularly in the least accessible seabed region) will be subject to fatigue loading that could ultimately cause premature failure and significant environmental pollution. In this project, guided wave ultrasonic testing developments are proposed that will overcome the limitations of the current technology and greatly increase the applicability and productivity of the technology. These developments will lead to increased business for EU inspection and maintenance SMEs. Recent business trends have seen oil companies outsource their entire inspection and maintenance requirements to specialist service SMEs. This will significantly increase business opportunities for these SMEs.

Call for proposal

FP6-2003-SME-1
See other projects for this call

Funding Scheme

COOPERATIVE

Coordinator

Participants (10)

COAXIAL POWER SYSTEMS LIMITED
United Kingdom
Address
Spectrum House, Finmere Road
Eastbourne, E Sussex
2H OFFSHORE ENGINEERING LTD
United Kingdom
Address
1-7 Cherry Street, Woking
Surrey
ATLANTIS NDE INGENIERIA DE INSPECCION NO DESTRUCTIVA SL
Spain
Address
C/ Ciudad De Frias, 1 - Nave 4
Madrid
PRZEDSIEBIORSTWO BADAWCZO-PRODUKCYJNE OPTEL SP. Z O.O
Poland
Address
Ul Otwarta 10 A
Wroclaw
I&T NARDONI INSTITUTE
Italy
Address
Via Della Cascina, Pontevica N° 21
Folzano (Brescia)
DACON AS
Norway
Address
Gml Ringeriksvei 6
Stabekk
BP EXPLORATION OPERATING COMPANY LTD
United Kingdom
Address
Chertsey Road
Sunbury-on-thames, Middlesex
PETROLEO BRASILEIRO S.A
Brazil
Address
Republica Do Chile, 65
15515 Rio De Janeiro
DET NORSKE VERITAS AS
Norway
Address
Veritasveien 1
300 Hovik
ZENON S.A. ROBOTICS AND INFORMATICS
Greece
Address
5 Kanari Street, Glyka Nera
Athens