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Offshore Structures Update


Offshore Structures Update Bob Wolfram Subcommittee 2 Strategy Group Impetus for Change Development of ISO 19900 series of offshore structures standards Hurricanes ... – PowerPoint PPT presentation

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Date added: 31 August 2019
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Title: Offshore Structures Update

  • Offshore Structures Update
  • Bob Wolfram
  • Subcommittee 2 Strategy Group

OTC 19606 API Offshore Structures Standards
Changing Times
Dave Wisch Andrea Mangiavacchi
OTC 19605 ISO 19900 Series Offshore Structures
Richard Snell Dave Wisch
Impetus for Change
  • Development of ISO 19900 series of offshore
    structures standards
  • Hurricanes
  • Ivan
  • Katrina
  • Rita

(No Transcript)
Materials and Floating Systems
Post Hurricane Response
ISO TC 67 Reactivation
SC 7 1st Meeting
Why change?
  • API has done a very good job in developing good
    offshore structures standards and continues to do
  • Why ISO

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.

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

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.

Impact of the Terrible Triplets
  • Serious impact on offshore infrastructure and
    significant loss of production
  • Keen interest from MMS on industry response
  • Reassessment of metocean data and severe
    hurricane characteristics
  • New insight into interaction with loop current
  • Publication of 6 interim bulletins on hurricane
  • Metocean criteria for 4 sectors of GOM
  • How to use this criteria for design of new and
    assessment of existing structures
  • Accelerated schedule
  • Reappraisal of the long term approach to standards

Longer Term Approach to Standards
  • Need for single metocean document to be based
    on ISO 19901-1
  • Need for separate structural integrity management
  • 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
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API/ISO - Wrapper
API vs. ISO Alignment - 2007
API vs. ISO Alignment 2010 Vision
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