System engineering round table discussion Washington 2010 By Olav Inderberg & Jens Henrik Neuenkirchen

System engineering Task ISO/API Define system requirements Define external interfaces Define internal interfaces ISO/API Different standards are not aligned Shall -1/17A take this role? First step is description of external interfaces Bruk eksempel fra nitrogen precharge for BOP for store dyp

External interfaces Physical Functional Operational To identify when you can not extrapolate earlier experiences is a very important system issue

Typical Subsea Production Scenario in the future (E-field and remote operation) LIGHT WELL INTERVENTION SMART WELL INTEGRATION MODULAR SUBSEA PRODUCTION SYSTEMS SUBSEA PROCESSING PRODUCTION TO SHORE DEEPWATER TRANSPORTATION SYSTEM LOW COST AND ULTRA DEEP WATER PRODUCTION SYSTEM DEEPWATER PROCESSING ULTRA DEEP WATER TECHNOLOGY LONG DISTANCE TRANSPORTATION AND COMMUNICATION

Technology development The development of technology will have different requirements in different regions. Drivers for these differences are: differences in regulations and environmental conditions different operational practices etc.

System Engineering Systems Engineering is an interdisciplinary approach and means to enable the realization of successful systems. It focuses on defining customer needs and required functionality early in the development cycle, documenting requirements, then proceeding with design synthesis and system validation while considering the complete problem (INCOSE)

Uniform Safety Level. Uniform system integrity requirements Uniform Safety Level ? Uniform system integrity requirements ?, Uniform design philosophy, common operational criteria ? Standards Overview General PSA Norway ISO 13628-1 NORSOK D-001 NORSOK D-010 NORSOK U-001 OLF Guideline 070 DNV-OS-C101 Drilling Equip. API spec’s API RP’s DNV-OS-E101 Riser/Umbilicals ISO API RP’s API Spec’s DNV-OSS-302 DNV-OS-F201 DNV-RP-F206 Control Systems ISO API Spec 16D DNV-OS-E101 BOP ISO’s NORSOK’s API Spec’s API RP’s DNV-OS-E101 Casing Tubing, Downhole ISO - tubing API spec API ISO (cement) Wellhead/XT: API spec’s ISO Source: DNV

ISO 13628 Series Code Break 13628-1 13628-6 13628-9 13628-8 13628-7 13628-2 13628-10 13628-11 13628-12 13628-5 13628-4 The interfaces between subsystem standards and the environment outside the system standard is essential to identify, document and control. It will be a prerequisite to understand the operations or mission of the system in a life cycle perspective in order to properly identify the crucial properties of the interfaces that need to be documented.

Operational Experience FOCUS ON DESIGN PAYS OFF Experience transfer pays off COST 100% 85%? RESOURCES EXPENDED RESOURCES COMMITTED Operational Experience Feedback TIME 0% DESIGN MANUFACTURE INSTALLATION & OPERATION

Interface Management The objective of interface management is to achieve functional and physical compatibility among all interrelated system elements. The Management and control of interfaces is crucial to successful projects. Interface management is a process to assist in controlling product development when efforts are divided among parties (e. g. customer, contractors, geographically diverse technical teams, etc.) and/or to define and maintain compliance among products that must interoperate.

System Engineering in context of overall project management Operations er også et element Source NASA

Technical Solution: Consider the human as a central component when doing logical decomposition and developing design concepts. The User/operators or maintainers will not see the entire system as the designer does, only as the system interfaces with them.

Back-up slides

System Design Keys Viktig tekst Source NASA

Threaded connection fatigue Bruke eksempel med 20 ganger redusert utmatning når H2S er til stede. Viser betydningen av å forstå applikasjonen

Through tubing rotary drilling (TTRD) TTRD technology in use on fixed platform Cost savings for subsea wells Additional well on existing templates: 70 MUSD Side tracked well: 10 MUSD Typical example of ”New” operational application of existing designs The new application willrequire new operation requirements

Operational issues Escalating weather, bring riser to secure position: Installation conditions Normal operating conditions Shut in conditions Hang-off conditions Difference between intervention tools and permanently installed equipment Viktig parameter

Code of Ethics Necessary? / Old fashion? What can be learnt from the examples given to day? How good is industry best practice? Is earlier experience relevant for this new application? What are trends we need to consider? How can we quality assure our designs and the operational use of those to ensure safe operations Gå igjennom og vurder

Openness Even in an environment with strong competition, openness is worth giving priority. The following issues are essential: Knowledge is double when shared Removal of hidden agendas Mutual respect and trust Development of attitudes which promote co-operation Early start of co-operation