Upload
others
View
1
Download
0
Embed Size (px)
Citation preview
Capability Presentation
AOG 2015 Subsea Conference, 11th – 13th March
2015 - Perth Conference & Exhibition Centre,
Western Australia
Subsea Controls, Sensors & Monitoring
K.Glanville
Design & Development Manager
Living with obsolescence
and reliability
Agenda
• Challenges and opportunities
• Limitations and Ailments of ‘older
systems’
• Upgrade of a North Sea Asset
• Conclusion
2
Challenges and
opportunities
3
Australian liquids Production
Australia’s production of oil, condensate and LPG has been in decline since it
peaked in 2000
4
© 2015 Proserv. All Rights Reserved.
UKCS Production
Since the initial licensing issued in 1964 approximately 42 billion barrels of oil
equivalent [boe] have been produced within the UKCS; upwards of 12 to 24
billion boe could be produced;
5
Production in the UKCS has fallen 38% between 2010 and 2013 with 72% of
this attributed to a drop in production efficiency;
Source: UKCS Maximizing Recovery Review: Final Report published by Sir Ian Wood 24th February 2014
© 2015 Proserv. All Rights Reserved.
% o
f cu
mm
ula
tive
oil
pro
du
ctio
n
1975 to 2014
UKCS offshore oil production 1975 to 2014, source DECC Nov2014
UKCS Production .. Cont’d
© 2015 Proserv. All Rights Reserved. 6
Recently recommendations within the final
report ‘UKCS Maximising Recovery Review’
related to improvements to production facilities
to address a decline in production efficiency
and maximize the remaining resources which
included: -
• Extending the life for the existing
infrastructure and facilities;
• Implementation of technologies to
realize production improvements;
Source: UKCS Maximizing Recovery Review: Final Report
published by Sir Ian Wood 24th February 2014
Limitations and
ailments of ‘Older
systems’
7
Obsolescence: -
© 2015 Proserv. All Rights Reserved.
8
Unscheduled shutdowns; inability to
support field life extensions or
introduction of new technology
Limited supply chain influence;
IT/automotive industry typically higher
volumes with shorter life cycle
Impact of failure likely to be exasperated
by redesign, requalification and
ultimately reliability and cost
Obsolescence: the loss or impending loss of original manufacturers products or raw
materials
Obsolescence: - Reactive / Proactive management
Proactive approach whilst mitigating
risk can result in high cost for LTB’s;
should be part of technology
roadmap
© 2015 Proserv. All Rights Reserved.
9
Reactive management –
responding to manufacturer’s PCN
alerts; impact of legislation on
availability e.g RoHs
Proactive management – Design to
provide obsolescence resilience;
Life Time Buy of key components
Reactive approach for subsea
can be risky and expensive and
potentially effect reliability of
product
Reliability: -
10
Reliability: ability of equipment, system to consistently perform its intended function
on demand without degradation or failure.
A working system or component will eventually fail ..
© 2015 Proserv. All Rights Reserved.
Extending, sustaining and optimising ageing assets often limited by current
technology
11
Power / Communication system
limitations often a barrier to
implementing production /
instrumentation or surveillance
technology
Performance and Functionality: -
Product support / knowledge
impacted by developments in
response to product and
industry requirements
© 2015 Proserv. All Rights Reserved.
Assessing condition and performance opportunities
Extending the life, facilities or existing functionality of the subsea system may
include any or all of the following: -
© 2015 Proserv. All Rights Reserved.
12
Power capacity and quality; support for
additional loads and potential impact on
communications system upgrades
Communications performance;
Environmental, Umbilical and existing
communication equipment often define
limitations to system upgrade
Subsea Standardisation
© 2015 Proserv. All Rights Reserved.
13
Subsea integration; system upgrades
should address connectivity,
performance and standardisation
Topside interfaces
SUBSEA
TOPSIDE
Se
ns
or
va
lue
s Co
ntro
l
SensorCANOpen (SIIS)
SensorModbus/RTU
SensorIWIS
CiA309: CAN on IP
Modbus/TCP on IP
Modbus/
TCP
All protocols
carried by IP
SCM
Data acquistion
server
SensorOther
SensorSensor
SensorSensor
MDIS
CUSTOM
PROTOCOL
SUPPORT
Upgrade of a North
Sea asset
14
Upgrade field overview
The Toni field is 100% operated by CNR and has been in operation since
the Early 1990’s has produced approximately 60 mboe; source DECC Nov
2014.
15
Requirement was to initially evaluate the two manifold production and
injection system and propose an upgrade that would enable new production
/ injection wells with improved availability and performance;
© 2015 Proserv. All Rights Reserved.
Topside system evaluation / upgrade
Determine upgrade potential re performance and interface capacity for power
and communications; existing power system suitable to support current
system, communication performance and functionality was an area for
improvement; future additional power/communication support incorporated
16
Powe r
TxD
RxD
RS23
2LA
N
Powe r
C
V
SUBSEA POWER
OC COf fO
1 On
Nemo 96 HD + IME
U I P· Q · S E· T
R+ = 100 K MP:A1 = 180 K A2 = 120 K
ALARM1 2
TESTRESE T
kWA- IS OMETE R®IR DH1065
BEND ER
RS232
50 to 600 kHzUp to 1,3Mbps
2.5MM TSP
Typ. 900/2200 Hz
Existing fsk Modem
16MM cores
Typ. 250Vac 60 Hz
Existing EPU
Ethernet/RS485 MCS/DCS link
Proserv TPCU
Evaluate DCS link integration strategies to select optimum solution; upgrade
ultimately coincided with DCS improvements and hence solution of direct
Proserv TPCU implemented, bypassing existing system;
© 2015 Proserv. All Rights Reserved.
Subsea system evaluation / upgrade
Existing separate communication & power; low frequency/data-rates,
existing power distribution suitable for proposed extension;
17
OCC/DIPLEXER
MAINSPOWER240V/50Hz
OCC/DIPLEXER
Attenuator 6dB insertion Loss
Existing Modem/simulator equip
Existing Modem/simulator equip
0-99dB
16mm2 PARALLEL POWER CONDUCTORS
2.5mm2 SCREENED SIGNAL TWISTED PAIR
Cable reel length = 500m
DC Load
Evaluation of potential strategies using spare umbilical dynamic riser
section; owing to physical construction of cable optimum solution
determined to implement communications on power conductors;
In-built diagnostics tool within Proserv OCC used in conjunction with
physical measurement tools to evaluate / optimise configuration /
performance
© 2015 Proserv. All Rights Reserved.
Subsea System Architecture
OCH
© 2015 Proserv. All Rights Reserved.
18
Existing EPU / communication
system
XT with Dual SEM
Subsea Control
Module
Channel A
Channel B
EDU ~6km
Umbilical
TPCU
SEM A
SEM B
SEM B
SEM A
Future
production /
Instrumentation
/ data systems
Channel B only – shown for
Clarity
Project summary
OCH [housing FO
interrogators
© 2015 Proserv. All Rights Reserved.
19
TPCU The existing production system had field / life
extension opportunities but also
obsolescence and reliability challenges
• Following extensive testing and evaluation using current
Proserv technology a coexist solution was proposed
which would provide a ~40kbps co-exist transparent
channel.
• Remote diagnostics, performance monitoring in
addition to resolving obsolescence and reliability
issues;
• The solution physically integrated into existing system
architecture without existing equipment modification
other than jumper reconfiguration;
• Additionally, equipment could readily be re-deployed /
reused to provide standard interfaces for data or
controls equipment
Conclusion
20
Conclusion
The UKCS has upwards of 12 to 24 billion boe that could be
produced; Production in the UKCS has fallen 38% between 2010
and 2013 with 72% of this attributed to a drop in production
efficiency; Source: UKCS Maximizing Recovery Review: Final Report published by Sir Ian Wood 24th February 2014
© 2015 Proserv. All Rights Reserved.
21
Proserv field proven technology was used to facilitate the upgrade of an
existing UKCS control system asset to support innovative improved
performance, functionality and reliability
Living with Obsolescence and reliability while
providing ‘enhanced recovery opportunities’
Copyright
COMPANY PROPRIETARY INFORMATION
© 2014 Proserv. All Rights Reserved. This document contains confidential and proprietary information of Proserv. It is not
to be in whole or in part, used, reproduced, disclosed, in any way made public or is it to be used without express permission
of Proserv. Proserv shall not, in any case, be liable for any compensation, claims or damages resulting from any use of this
document or any information contained herein and the recipient, by accessing, reading, reviewing or using in any way, the
information attached hereto expressly agrees to defend, indemnify and hold Proserv harmless with respect to any such
compensation, claims or damages regardless of cause. This document and all information and data contained herein are
subject to return upon demand. Legal action may follow any breach of this Copyright.
© 2015 Proserv. All Rights Reserved.