05-integritymanagement

7/25/2019 05-integritymanagement

1/20

Riser IntegrityManagement

HSE Flexible Pipe Integrity Forum

November, 2008, Aberdeen


2/20

2

ConclusionsV_

Monitoring TechnologiesIV_

Example of RIM System: DaliaIII_

Main Interfaces for RIMII_

_ IntroductionI

Contents


3/20

3

ConclusionsV_




_ IntroductionI

Contents


4/20

4

ConclusionsV_




_ IntroductionI

Contents


5/20

5

Main Steps of Riser Integrity Management

Task 1 Task 2 Task 3 Task 4

Study Basis ofDesign

Inspection &Monitoring

Programme

Definition

Inspection &Monitoring

Programme

Execution

Post-processingof riser data and

conclusions

about riser

integrity

Programme Preparation Onshore Offshore Operations IM Post-Processing

Onshore

Year N +1

First Year


6/20

6

Main Interfaces

1 -Order and Specify Riser

2 Design, Manuf, Install Riser

Integrate Monitoring hardware

3 Failure Mode Analysis

Provide data

4 Define RIM programme

5 Monitoring Hard and software

data Aquisition, process

Data management, Interpretation - 7

Integrity Assessment - 8

9 Act, Decide

Operato

r

RiserManu

f-Insta

ller

RIMSe

rvice

Provid

er

H&Sp

rovider

6 Provide Additional data


7/20

7

Responsibilities

Operator

Specify

Provide Additional

Data from System

Act on Results

Implement

Recommendations

Riser Manufacturer

/ Installer Provide Relevant

Info Design

Manufacturing

Installation Commissioning

Integrate hardware

in Riser

FMA

Integrity

Assessment

Make

Recommendations

RIM Service

Provider

Establish RIM

Programme

Coordinate

Activities

Manage,

Analyze data

Interpret Data

H&S Provider

Provide

Hardware,

Software

Install itOffshore

Service and

Maintain

Data Transfer,

Analysis

Task 1

&Task 2

Task 3

Task 4


8/20

8

ConclusionsV_




_ IntroductionI

Contents


9/20

9

Dalia RIM SCOPE

'What: Monitoring, testing & inspection of 8 IPB risers, 2 GI & 4 WI risers

' Where: On Dalia flexible risers

' How long: During the entire field life

' How: Annual review of data & yearly follow-up report delivered to theClient + Annual optimization and adjustments of the schedule + regulargeneral interaction with asset


10/20

10

Involved Parties

' Operator : Total

' RIM Service Provider : Genesis (Technip)

' Riser Manufacturer & Installer: TechnipFrance / Flexifrance

' H&S Providers:

Schlumberger: DTS system inspection & maintenance Force Technology: Vent Gas Monitoring system maintenance


11/20

11

Dalia RIM: Services Overview

Operating Conditions

Surveillance

P,T enveloppe

Peaks & shut-down

DTS

External IntegritySurveillance

ROV & visual ins

DTS

Riser Mechanical &Plastic Ageing

Vent gas analysis

Polymer coupon

Plastic ageing analysisFatigue analysis

Annulus Integrity

Monitoring

Vacuum tests

Vent system check-up

Peaks & Shut-down

Insp. & Maint. Of

Monitoring System

VGM

DTS

Riser IM


12/20

12

2008 Programme Review

' Inspection & maintenance on FPSO:

DTS system: Completed by Schlumberger Vacuum tests & topsides inspections by Flexifrance:

VGM system maintenance : Force Technology' Vent gas analysis: Performed in June 2008 Conclusions issued in the

Yearly Report

' Yearly Report: To be issued in December 2008 / January 2009

' Key points:

Importance of strong relationships between key players (knowledgetransfer, access to in-house experts)

Initiate early discussion Data gathering is key


13/20

13

ConclusionsV_




_ IntroductionI

Contents


14/20

14

Flooded Annulus Detection

Perform regular inspections to detect possible water ingress vacuum test

N2 Gas injection and control of the injected volume

Perform regular subsea examination

Gas venting monitoring device Measure any sudden increase in the gas flowrate

Presence of water at the venting ports

Implement PIM (pipe integrity management) P & T history

Fluid history

Annulus history

Annulus vent rate

monitor

0

5

10

15

20

25

30

35

40

45

50

24.05.20

0022:00

25.05.20

0010:00

25.05.20

0022:00

26.05.20

0010:00

26.05.20

0022:00

27.05.20

0010:00

27.05.20

0022:00

28.05.20

0010:00

28.05.20

0022:00

29.05.20

0010:00

29.05.20

0022:00

30.05.20

0010:00

30.05.20

0022:00

31.05.20

0010:00

31.05.20

0022:00

01.06.20

0010:00

01.06.20

0022:00

02.06.20

0010:00

02.06.20

0022:00

03.06.20

0010:00

03.06.20

0022:00

04.06.20

0010:00

04.06.20

0022:00

05.06.20

0010:00

05.06.20

0022:00

06.06.20

0010:00

Average 3 Kanal 108

Average 5 Kanal 108

Tid Kanal 108


15/20

15

Temperature Monitoring: DTS (1/2)

Distributed Temperature Sensing (DTS) technology :

Raman Reflectometry (OTDR, analysis of back-scattered light)

Continuous temperature profiles along each fibre with a resolution of 1m and very

good accuracy (+/- 0.5C) and resolution about 0.1C

Integration in the Flexible Pipe Manufacturing process:

SS tubes integrated in Flexible Pipe Manufacture (Armour layer or bundle)

Optical fibre inserted inside SS tubes

SS tubes


16/20

16

Good Sensitivity of system

Calibration of model to forecast temperature in different elements of

Pipe.

Applications

Flow Assurance

Annulus Flooding

Temperature Monitoring: DTS (2/2)


17/20

17

Curvature Sensor

subCRods : based on Optical Fibre FBG sensors GRP rod with 4 optical fibres

Sensors at about 1m (or less) intervals

Integration in Bend Stiffener

4 moulded voids included in design

Calibration of System

Solutions have been developed


18/20

18

Acoustic Emission of wire Rupture

Used on Full Scale test Several times 2002 Tensile test on the traction bench in LeTrait

2007 Corrosion Fatigue test

Additional work ongoing to qualify for Offshore use.

Calibration, fixation and location on flexible pipe needs close

collaboration


19/20

19

ConclusionsV_




_ IntroductionI

Contents


20/20

20

CONCLUSIONS Complex process

Many players

Many interfaces

Technip view: Integrate under Company an Overall Service

To add value to the process

To deliver asset life expectations

Each player needs to fulfill its role

Flexible Manufacturer (in particular access to in-house expertise)

Monitoring Hardware/Software Supplier

RIM Service Provider (at start and during lifetime - importance of

historical events recording)

Operator

05-integritymanagement

Documents