1. 3P Services, Germany
Basil Hostage
The missing link – inspecting the final critical section of a large crude transmission and export system

2. In-line inspection since 1992 MFL world wide
DGMK-Vortrag
In-line inspection
since 1992
MFL
world wide
initially specialized on small diameter tools (4“ to 10“)
today 3“ to 42“ …

4. Ocensa‘s offshore pipeline

5. Ocensa‘s offshore pipeline

6. Integrity assessment selected by Ocensa
Internal inspection tool capable of
Detecting corrosion and deformation
Anomalies including dents, gouges
and grooves

7. Necessary considerations
Cleaning
Remove internally for old deposits of sands, wax and sediments.
Restrictions identifications
No impacts to crude oil transport program
No receiver trap installed
No environmental impacts
Inspection metal loss with a High Resolution Tool
Sizing and location accuracy. GPS location. Detection of anomalies on welds

8. Necessary considerations
Identification and location of mechanical anomalies
Identify, locate and size dents,ovality, wrinkles, deformations.
Identify possible defects in the pipe were the intelligent tool could be stuck.
Processing and analyze data
Review the data, identify defects, prioritize and define plan to go forward.
Anomalies assessment according B31G and R Streng
Finding’s repairs .
Data validation and repairs according with the report and priority

9. Inspection and cleaning technology
Gel
Conventional
BiDi
Inspection
Umbilical

10. ILI Background
Contacts with operators with Offshore In Line Inspection experience
In Line inspection vendors
Risk Assessment In Line Inspection Technologies
Technologies Assessment
Risk Assessment for Receiver Trap installation
Facilities required, trap mobilization and installation, environmental impacts
Risk Assessment for Operation
Submarine valves, flow backward, use tanker storage

11. ILI Background Risk Assessment Pigging
Quality of cleaning, pigging alternatives evaluation, pigging program design
Discussion about procedures, logistics and equipments required
Operation, transport, control center, maintenance, environmental, Terminal and integrity.
Final Risk Assessment to define best ILI and pigging alternative with all areas.

12. Selected ILI technology
Bidirectional Tool.
No required receiver trap installation.
High Resolution Tool.
High number and density of sensors, accuracy.
Classification ID/OD discrimination.
Boxing,clustering and interaction analysis.

13. Selected ILI technology
Metal loss correlation with mechanical anomalies.
Excellent accuracy and probability of detection.
Sizing Accuracy( Manual and Auto)
Anomalies location with (GPS)
Inspection coverage (100%)
Interpretation and assessment of data

14. Ocensa‘s work scope
Max preparation for cleaning
MFL, GEO and XYZ
Complete tracking and markering
Safe navigation near the PLEM
= the full program

15. Project conclusion
Issues to be covered
Contract
Technical planning
Logistics
Job execution
Data analysis & reporting
Verification
Very ambitious time schedule

16. How could this work? Project conclusion
OCENSA: large pipeline operator
3P Services: small contractor, far away

17. Answers
Careful technology analysis and decision by OCENSA
Contract: OCENSA respected 3P‘s specific needs
High flexibility of 3P Services, since small
OCENSA made systematic use of 3P‘s experience
High professional skills of the individuals involved

18. Markers and antennae

19. Pig launcher Coveñas

20. BiDi cleaning pig

21. Launching the GEO tool

22. 42“ MFL tool

23. Vertical profile of land section

24. Pig speed profile

25. Pig recorded pressure profile

26. Bi-directional MFL applications

33. Thanks for your attention