c 1 offshore structures update bob wolfram subcommittee 2 strategy group

1c

Offshore Structures Update

Bob Wolfram

Subcommittee 2 Strategy Group

2c

OTC 19606: API Offshore Structures Standards: Changing Times

Dave WischAndrea Mangiavacchi

OTC 19605: ISO 19900 Series: Offshore Structures Standards

Richard SnellDave Wisch

3c

Impetus for Change

1. Development of ISO 19900 series of offshore structures standards

2. Hurricanes –

• Ivan

• Katrina

• Rita

4c

Scope

5c

2A

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-LR

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196419651966196719681969 1 119701971 21972 3-4 21973 51974 6 1 119751976 71977 8-9 3 21978 1197910-11 21980 11981 12 1s 31982 13 2s 11983 13s 3 21984 1519851986 16 4 3 3s1987 17 1 1 1 1 1 1 1 41988 5 2 2 1 51989 181990 6 2 21991 191992 2 1s1993 20 1 7 3 31994 11995 1 3 21996 20-s 5 3 2 2 41997 1s 2 61998 3 11999 8 4 42000 21 2 22001 6 2 1 12002 21s 120032004 4 3 32005 21s2006 1 9 5 5 x x2007 21s x x x x x x2008

6c

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RP 2A

Materials and Floating Systems

Post Hurricane Response

7c

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ISO TC 67 Reactivation

SC 7 1st Meeting

8c

Why change?

API has done a very good job in developing good offshore structures standards and continues to do so.

Why ISO

9c

Factors causing change

Norwegian & UK and Classification Society regulations developed in part competing with API.

EU structural standards programme initiated with stated aim of including offshore structures.

Oil Companies moved from traditional geographic locations and suppliers to worldwide operations.

Worldwide cross-industry trend to give lower credence to industry standards than national or international standards.

Problem applied to the oil industry as a whole – not just offshore structures.

10c

Industry Solution

Develop a single set of Oil Industry Standards through ISO.

Build on legacy of mainly API but also other industry standards.

ANSI given chair and secretariat of the ISO Committee overseeing the development of Oil Industry ISO Standards.

ANSI delegated secretariat to API.

Seven Subcommittees

SC 7 – Offshore Structures

• BSI Secretariat

• Large Work Plan, Multiple Work Groups and Panels

11c

ISO 19900 Series Scope

Standardisation of all forms of fixed and floating offshore structure used in the production and storage of petroleum and natural gas and site specific assessment of mobile offshore units.

12c

Impact of the Terrible Triplets

1. Serious impact on offshore infrastructure and significant loss of production

Keen interest from MMS on industry response

2. Reassessment of metocean data and severe hurricane characteristics

New insight into interaction with loop current

Publication of 6 interim bulletins on hurricane design

• Metocean criteria for 4 sectors of GOM

• How to use this criteria for design of new and assessment of existing structures

• Accelerated schedule

3. Reappraisal of the long term approach to standards

13c

Longer Term Approach to Standards

• Need for single metocean document – to be based on ISO 19901-1

• Need for separate structural integrity management RP

• Removal of metocean, fire and blast and reassessment criteria from RP 2A implies significant restructuring of the document

• ISO standards reaching maturity and publication

• Heightened industry interest in standards but manpower resources scarce

Maybe the time is now right to streamline the API offshore standards suite and align with the ISO standards per the original vision

14c

19900Petroleum and Natural Gas Industries - General requirements

for offshore structures

19901-1 Metocean design and operating conditions

19901–4 Geotechnical and foundation design considerations

19901-3 Topsides structure

19901-2 Seismic design procedures and criteria

19901– 5 Weight control during engineering and construction

19901-6 Marine Operations

19901–7 Stationkeeping systems for floating offshore structures and mobile offshore units

19902Fixed steel offshore structures

19903Fixed concrete structures

19904 -1 Floating offshore structures - Monohulls, semi-submersibiles and spars

19904 -2 Floating offshore structures - Tension Leg Platforms

19905-1 Site-specific assessment of mobile offshore unitsJackups

19905-2 Site-specific assessment of mobile offshore unitsCommentary

19906 Arctic Structures

RP 2AFixed Offshore Platforms

RP 2FPSFloating Production Systems

RP 2NStructures and Pipelines for Arctic Conditions

RP 2RDDesign of Risers for Floating Production Systems and Tension Leg Platforms

RP 2SKStationkeeping Systems for Floating Structures

RP 2SMSynthetic Fiber Ropes for Offshore Mooring

RP 2TTension Leg Platforms

RP 2IIn-service Inspection of Mooring Hardware for Floating Drilling Units

RP 95F Interim Guidance for Gulf of Mexico MODU Mooring Practice

Bulletin 2TD Guidelines for Tie-downs on Offshore Production Facilities

RP 95j Interim Guidance for Gulf of Mexico Jackup Operations

RP 2SIMStructural Integrity Management

15c

API/ISO - “Wrapper”

16c

API vs. ISO Alignment - 2007

MetoceanSeismic Design

Topsides Design

Geotechnical Weight Control

Marine Operations

Station Keeping

Fire and BlastStructural Integrity

ManagementPlates Shells

ISOISO

19901-1ISO

19901-2ISO

19901-3ISO

19901-4ISO

19901-5ISO

19901-6ISO

19901-7ISO

19901-3ISO

19902N/A N/A

Concrete Structures

Floating Structures

TLP Jack-ups MODUsArctic

Structures

APIRP 2AWSD

RP 2ALRFD

RP 2FPS RP 2T RP 2N

ISO N/AISO

19902ISO

19903ISO

19904-1N/A

ISO 19905-1

ISO 19905-2

ISO 19906

Q4 2007 STATUS

INTRODUCTION

(RP 2A) ISO 19900

Fixed steel structures

Specific Structures

General Parts

(RP 2A) (RP 2A) (RP 2A) (RP 2A)

No Plans

ExistingUnder

DevelopmentUnder

Revision

(RP 2A)RP 2SKRP 2SM

RP 2IAPI RP 2FB RP 2SIM 2V 2U

17c

API vs. ISO Alignment – 2010 Vision

MetoceanSeismic Design

Topsides Design

Geotechnical Weight Control

Marine Operations

Station Keeping

Fire and BlastStructural Integrity

ManagementPlates Shells

ISO 19901-3

ISO 19902 / ISO 19904-1

N/A N/A

Concrete Structures

Floating Structures

TLP Jack-ups MODUsArctic

Structures

RP 2AWSD

RP 2T ?? ??

N/A N/AISO

19905-1ISO

19905-2

2010 VISION - STATUS Q4 2007

RP 2ALRFD/

ISO19902

RP 2FPS/ISO

19904-1

RP 2CON/ISO

19903 ?

RP 2N/ISO

19906

RP 2FB RP 2SIMRP 2GEO/ISO

19901-4

RP 2WGT/ISO

19901-5

RP 2MOP/ISO

19901-6

RP 2SK-RP 2SM/

ISO 19901-7

RP 2I

No Plans

ExistingUnder

DevelopmentUnder

RevisionScheduled

INTRODUCTION

Fixed steel structures

Specific Structures

General Parts

2V 2U

RP 2GEN/ISO 19900

RP 2MET/ISO

19901-1

RP 2EQ/ISO

19901-2

RP 2TOP/ISO

19901-3

18c

2008 API Work Activities

Resource Group

Area Task Group & Standard

RG 1 Metocean RP 2A –WSD

RG 2 Mooring RP 2 Gen

RG 3 Structural Elements RP 2 SIM

RG 4 Loads – Hydrodynamics & Global Response RP 2 FPS

RG 5 Structural Integrity Management RP 2 SK

RG 6 Hull Structure Design RP 2 MET

RG 7 Geotechnical RP 2 EQ

RG 8 Materials/Fabrication RP 2 GEO

RG 9 Topsides RP 2 WGT

RG 10 Risers RP 2 MOP

RG 11 Offshore Systems RP 2 SM

RG 12 Marine Operations RP 2 I

RG 13 Seismic Spec 2 C

RG 14 Jackups RP 2 L

RG 15 Pipelines RP 2 X

RP 2 RD

RP/Spec – Castings/Forgings

c 1 offshore structures update bob wolfram subcommittee 2 strategy group

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