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Houston Marine Insurance Seminar September 17th, 2007

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Presentation on theme: "Houston Marine Insurance Seminar September 17th, 2007"— Presentation transcript:

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2 Houston Marine Insurance Seminar September 17th, 2007
T. T. “Tommy” Laurendine, P.E. Risk Engineer Liberty International Underwriters (713) 470 – 5823

3 Role Offshore Structural Engineering Plays in Understanding Risk

4 Gulf Of Mexico (GOM) RISK is from hurricane WAVES
Insured Loss Ivan $1.4 B Katrina $6 B Rita Total $13.4 B

5 GOM National Treasure 4,000 platforms 35,000 miles of pipelines
15,000 wells 2 Million BOPD 12 Billion SCFD 2nd Largest Source of Income The Gulf is host to over 4,000 platforms and 35,000 miles of pipelines--some of this infrastructure is 50 years old or more. Because of the recognition of the importance in maintaining this infrastructure the Offshore program of MMS has as one of its 21 strategic goals “Aging Infrastructure” and is working towards having platforms in the Gulf assessed to determine that existing platforms provide an acceptable level of safety for both human life and the environment. One of the papers being presented this morning will give an update on the assessment process.

6 Platform Installations and Removals by Year
Average Number of Platforms: Installed = 132 per year, Removed = 129 per year Data as of 04/17/07

7 GOM Structures by Vintage and Water Depth (DATA AS OF JULY 1, 2007)

8 Destroyed by Hurricane Ivan
Wave-in-Deck Mudslide These are four of the seven platforms destroyed by Hurricane Ivan, in addition to the seven destroyed platforms another 14 platforms were removed in the aftermath of Hurricane Ivan either as a result of damage were repairs could not be justified or the need for the platform no longer exists. Wave-in-Deck Wave-in-Deck

9 Storm Tracks and Extent of Hurricane Winds
The Gulf is host to over 4,000 platforms and 35,000 miles of pipelines--some of this infrastructure is 50 years old or more. Because of the recognition of the importance in maintaining this infrastructure the Offshore program of MMS has as one of its 21 strategic goals “Aging Infrastructure” and is working towards having platforms in the Gulf assessed to determine that existing platforms provide an acceptable level of safety for both human life and the environment. One of the papers being presented this morning will give an update on the assessment process.

10 Moored SEMIS Adrift in RITA
Before Rita

11 Platform Destroyed by Drifting SEMI

12 Tension-Leg Platform (TLP) Destroyed by Waves in Hurricane Rita
This is Typhoon which produces approximately 25 kbopd a day and 30 MMCF. It is a mini-TLP sea-star design. It was installed in the GOM back in 2001.

13 Platforms Destroyed by Katrina / Rita

14 Increased Cost of Decommissioning Increased Demand on Resources

15 GOM: Unique Challenge

16 API Exposure Categories based on Life Safety and Environmental Pollution
High Consequence Medium Consequence Low Consequence

17 Platform Characteristics
Deck Height Orientation Exposure Category Framing Original Design Criteria Structure Type Age Water Depth Number of Conductors Location

18 Deck Height vs. Air Gap Underside of Deck Deck Height Waterline

19 Wave-in-Deck Damage

20 Inadequate Deck Height due to Subsidence
The seafloor at this location has subsided 10 feet. The (+)10 is at the waterline.

21 Platform Orientation

22 Platform Orientation Platform North True North 300O 360O
API BULLETIN 2INT-MET Principal Wave Heading is 290O for this platform.

23 AGE Pre RP 2A 7.6% Failed Early RP 2A 2% Failed Modern RP 2A

24 Mitigation Before After After Reduce Consequence of Failure
Reduce Load on Platform Increase Strength of Platform Before After After 54’ 40’

25 Why Mitigate? Driving force to mitigate was to reduce the chance of having to spend resources dealing with the expensive task of P&A wells on bottom.

26 Contingent Business Interruption

27 API HEAT WORK 290° 270° Principal Wave Heading varies from 270o to 345o by Longitude

28 Five New Recommended Practices

29 Maximum Wave Height by Return Period
20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 110.0 120.0 130.0 Hmax (ft) 100 1000 10 Year 25 Year 50 Year 100 Year 200 Year 1000 Year 2000 Year 10000 Year This only shows the API Interim 100-year maximum wave height versus the existing API 21st edition high consequence. The comparison could also be made for API Interim 50-year and 25-year versus API 21st edition medium and low consequence criteria. Water Depth, MLLW (ft)

30 Fixed Structure Wave Force = f(Hmax)2
28% increase in wave height = 64% increase in wave force Structures are typically designed to have a resistance 50 to 67% beyond the design load. 1% 0.1% 100 1000 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 110.0 120.0 130.0 Hmax (ft) 28% This only shows the API Interim 100-year maximum wave height versus the existing API 21st edition high consequence. The comparison could also be made for API Interim 50-year and 25-year versus API 21st edition medium and low consequence criteria. Water Depth, MLLW (ft)

31 Schedule Issues Inconsistent Format Out of Date Information
Field Name versus Area and Block Naming EC, East Cameron, East Cam, E. Cameron Out of Date Information Removed platform included in schedule New Installations not included Missing Data Deck Height Type of Structure Incorrect Data Lat/Long Wrong Wrong Water Depth Wrong Installation Year

32 Standardize Schedule Format
OSTS Inspection Report Required by CFR, Annually on Nov 1st Since 1988 Each Platform Documented OSTS Assessment Report Requested by NTL Over 75% of platforms documented with the MMS in June 2004 voluntarily by Operators Complex Id and Structure No. Unique

33 OSTS Inspection Report

34 OSTS Assessment Report

35 Key Stakeholders Risk Manager Adjuster Broker Schedule & Data
Risk Engineer Underwriter

36 Benefits of Standardized Schedule
Consistent Format More Timely Underwriter Response More Accurate Insurance Policy Reduce Burden on ALL Stakeholders Greater Communication Improve Our Business

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