System engineeringround table discussion

Washington 2010

By Olav Inderberg & Jens Henrik Neuenkirchen

System engineering

• Task– 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

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

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)

Standards Overview

Wellhead/XT:API spec’sISO

BOPISO’sNORSOK’sNORSOK’sAPI Spec’sAPI RP’sDNV-OS-E101

Casing Tubing, DownholeISO - tubingAPI specAPI ISO (cement)

Drilling Equip. API spec’sAPI RP’sDNV-OS-E101

GeneralPSA NorwayISO 13628-1NORSOK D-001NORSOK D-010NORSOK U-001OLF Guideline 070DNV-OS-C101

Riser/UmbilicalsISO API RP’sAPI Spec’sDNV-OSS-302DNV-OS-F201DNV-RP-F206

Control SystemsISOAPI Spec 16DDNV-OS-E101

Uniform Safety Level ? Uniform system integrity requirements ?,

Uniform design philosophy, common operational criteria ?

Source: DNV

ISO 13628 Series Code Break

13628-5

13628-6

13628-4

13628-9

13

62

8-8

13628-2

13628-10

13628-11

13628-12

13628-7

13628-1

FOCUS ON DESIGN PAYS OFF

100%

0%

85%?

TIME

DESIGNR

ESO

UR

CES

EXPE

ND

ED

MANUFACTURE INSTALLATION & OPERATION

COST

RES

OU

RC

ES

CO

MM

ITTE

DExperience transfer pays off

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.

10

System Engineering in context of overall project management

11Source 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.

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Back-up slides

System Design Keys

14

Source NASA

Threaded connection fatigue

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

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

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

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