System engineering
round 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
PRODUCTION TO SHORE
LONG DISTANCE
TRANSPORTATION AND
COMMUNICATION
MODULAR SUBSEA
PRODUCTION
SYSTEMS
SUBSEA PROCESSING
ULTRA DEEP
WATER
TECHNOLOGY
DEEPWATER
TRANSPORTATION
SYSTEM
DEEPWATER
PROCESSING
SMART WELL
INTEGRATION
LOW COST AND ULTRA DEEP
WATER PRODUCTION SYSTEM
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)
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 BOP
ISO’s
NORSOK’s
NORSOK’s
API Spec’s
API RP’s
DNV-OS-E101
Control Systems
ISO
API Spec 16D
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
13628-9
13628-2
13628-10
13628-8
13628-6
13628-7
13628-5
13628-11
13628-4
13628-12
13628-1
FOCUS ON DESIGN PAYS OFF
Experience transfer pays off
COST
100%
85%?
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.
10
System Engineering in context
of overall project management
Source NASA
11
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.
12
Back-up slides
System Design Keys
Source NASA
14
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 cooperation
• Early start of co-operation