The document summarizes the work of the Offshore Structures Specifications Task Force to standardize offshore structures specifications across 10 contributing operators. The Task Force selected base standards for 12 topics and identified minimum essential requirements through consolidating over 4,000 total company requirements. Several supplementary specifications have been published with others to follow, reducing specifications while maintaining safety. The goal is further alignment between standards and incorporation into ISO standards.

1. 1
August 2020
Offshore Structures
Specifications Task
Force – JIP35
Phase 2

2. 2
Standardisation of Offshore Structures Specifications
• An IOGP initiative, funded by JIP35, following the successful IOGP JIP33 initiative on the
standardisation of equipment specifications
• 10 Contributing Operators: BP, Chevron, ENI, Equinor, ExxonMobil, INPEX, Shell, Suncor, Total,
Woodside making up the Offshore Structures Specifications Task Force, under the Offshore
Structures Subcommittee
• Objective: Selection of an agreed base standard; using these operators’ specifications as input,
identify and agree minimum, essential common requirements, documenting these in jointly
approved supplementary specifications, published by IOGP
• 12 Teams covering: Concrete, General Requirements, Metocean, Stationkeeping, Marine Soil
Investigations, Seismic, Foundations, Weight Management, Topsides, Fixed Jackets, Floating
Structures, Arctic
• Task Force Chairman: Simen Moxnes of Equinor; Task Force Vice-Chair: Philip Smedley of BP

3. 3
Topic (IOGP Supplementary Spec) Selected Base Standard
General Requirements (S-631-01) ISO 19900
Metocean (S-631-09) ISO 19901-1 (API 2MET is a modified adoption)
Seismic (S-631-08) ISO 19901-2 (API RP 2EQ is a modified adoption)
Topsides (S-631-04) ISO 19901-3: 2014 (API RP 2TOP is near equivalent)
Foundations (S-631-05) ISO 19901-4 (API 2GEO is a modified adoption)
Weight Management (S-631-06) ISO 19901-5
Stationkeeping (S-631-07) ISO 19901-7 (API RP 2SK is near equivalent)
Marine Soil Invest. (S-631-10) ISO 19901-8
Fixed Jacket (S-631-11) ISO 19902 (API RP 2A (LRFD) is a modified adoption)
Concrete (S-631-03) ISO 19903
Arctic (S-631-02) ISO 19906 (API RP 2N is a modified adoption)
Floating N/A – Position paper issued. Phase 3 Scope
Selected Base Standards

4. 4
Topic (IOGP Supplementary Specification)
Total Company
Requirements
Minimum Essential
Requirements
General Reqs (S-631-01) – Published 44 5
Concrete (S-631-03) – Published 216 43
Seismic (S-631-08) – Published 255 5
Arctic (S-631-02) – Published 170 0
Marine Soil Invest. (S-631-10) – Published 883 90
Stationkeeping (S-631-07) – Published 1111 53
Topsides (S-631-04) – Published 1936 60
Fixed Jacket (S-631-11) – Publish September 2020 1931 ~90
Consolidation and Reduction of Company Requirements

5. 5
Available on IOGP website – www.iogp.org/jip35
Publications: Supplementary Specifications

6. 6
Topic Status
Weight Management (S-631-06)
Published
Worked directly through ISO TC 67/SC 7/WG 6
Metocean (S-631-09)
Publish January 2021*
Worked directly through ISO TC 67/SC 7/WG 3. DIS ballot draft
approximately December 2020
Foundations (S-631-05)
Publish March 2021*
Worked directly through ISO TC 67/SC 7/WG 10. DIS ballot draft
approximately February 2021
Floating Systems
Brief position paper issued by Task Force. Further work is planned
during Phase 3
Other Topics
* Publication of IOGP Specification, referencing the ISO DIS (publicly available from ISO) and no supplementary requirements

7. 7
Published Supplementary Specifications:
Pre-JIP35 vs Minimum Essential Requirements

8. 8
Published Supplementary Specifications:
Pre-JIP35 vs Minimum Essential Requirements
Operator:

9. 9
Further Opportunities
• Offer these supplementary requirements for incorporation into the ISO base
standards at next revision/opportunity
• Downgrading of company requirements to recommendations or guidelines
• Further alignment between the ISO and API standards
• Improved technical writing of these standards and company specifications
• Phase 3 scope to be initiated in October 2020

10. 10
For more information please contact:
www.iogp.org
Registered Office
City Tower
Level 14
40 Basinghall Street
London EC2V 5DE
United Kingdom
+44 (0)20 3763 9700
reception@iogp.org
Houston Office
19219 Katy Freeway
Suite 175
Houston, TX 77094
United States
+1 (713) 261 0411
reception@iogp.org
Brussels Office
Avenue de Tervuren 188A
B-1150 Brussels
Belgium
+32 (0)2 790 7762
eu-reception@iogp.org
Simen Moxnes, Equinor
smox@equinor.com
Philip Smedley, BP
philip.smedley@uk.bp.com
Diane Gonsalves, IOGP
dg@iogp.org