Post on 20-May-2015
transcript
1 -
Tyrihans SRSWI (Subsea Raw Seawater Injection)
Project Execution Experiences
UTC – 2010-09-22
Nils Petter Time – Principal Engineer
2 -SRSWI System
Tyrihans Field Overview
3 -
Tyrihans Reservoir & Purpose of SRSWI
Garn
ILE
Oil column
Ile
gas prospect
• Åsgard B gas injection capacity is limited to 8.5 mill. Sm3/sd
• Increased pressure support improves oil/condensate recovery in TYS
• Water injection stabilize oil zone in TYS and pushes gas breakthrough back
• Water injection in the saddle will equalizes pressure differences between TYS and TYN
• Estimated IOR of 10%
Reserves:
•68.9 MSm3 oil/ condensate
•55.4 GSm3 rich gas
4 -
Contract Strategy – SPS vs Pump System
Statoil - Tyrihans
SPS ContractorFMC - chosen Q1 2006
SRSWI ContractorAker Solutions - chosen Q2 2006
(SPS = Subsea Production System)
The SRSWI system is integrated into SPS template and controlled by the
Kristin Safety and Automation System (SAS) via the SPS Control System.
5 -
System Overview – Topside Equipment
6 -
System Overview – Subsea Equipment
7 -
SRSWI Pump Cassette
8 -
SRSWI Project Timeline
2006 SRSWI Contract award – Aker Solutions
2006 SPS Contract award – FMC Technologies
2007 Integration Test – Pump cassette vs Template
2008 System Function Test in pit at
Aker Solutions’ Tranby site
2008/2009 Integration- and
Shallow Water Test of Pump
Cassette with all Modules
2009 Marine Operations – Installation of
Pump Cassette and Power Umbilical
2008 Installation of topside
equipment on Kristin
2009/2010 Topside MC and
Commissioning of SRSWI System
2010/2011 Completion of well and injection start up
9 -
SRSWI Project - Interfaces
Pump Cassette
29UD801
Step down
transformer &
Step up
transformer
29ET820
FMC Technologies
Aker Solutions
NexansAker Solutions
Barrier
Fluid HPU
29UX801
31 km
To
psid
e (
C0
74
)
Su
bse
a (
C0
89
)
Seaw
ate
r in
take
El. m
oto
rB
ooste
r
Pu
mp
Min
. flow
orifice
Seaw
ate
r in
take
Ste
p d
ow
n
tra
nsfo
rme
r
29E
T8
21
Pum
p m
odule
29U
X821
Dya
mic
part
Tra
nsitio
n join
t
Sta
tic p
art
Topsid
e h
ang-o
ff
HV Wet Mate
Connectors
Split
box
Power Umbilical
PC-201
Template ’W’ - 18UZ9001
WI choke module
El. m
oto
rB
ooste
r
Pu
mp
Ste
p d
ow
n
tra
nsfo
rme
r
29E
T8
11
HV Wet Mate
Connectors
Kristin Topside
PC
-202 (
700 m
)P
C-2
03 (
700 m
)
VSD1
29ER810
Min
. flow
orifice
Step down
transformer &
Step up
transformer
29ET810
VSD Controller & RIO
29EC801
VSD2
29ER820
HTP
19UU801
Standard
Tyrihans
HXT
18UB9200
Slot W2
Spare slot for
additional well
Slot W1
SC
M
18
UN
93
00
(FM
C)
CM
M
29
UN
83
1
SRM A
18UN9001
SRM B
18UN9002
Pum
p m
odule
29U
X811
Manifold
18UD9001
Tyrihans SRSWI System
Supplier Interfaces
C089-ZAB-Z-XI-0001-01
NPT, 15.09.2009
Sheet 1 of 1 Rev. 02
18UC9200
11 -
Project Interfaces Statoil
FMC Technologies
Subsea Production
System
Aker Solutions
SRSWI
Aker Reinertsen
Topside Mod’s
Nexans
Power Umbilical
Acergy
Marine Operations
Kongsberg Maritime
SAS
Grenland Offshore
Structures
Grenland Offshore
Structures
Anzett
Barrier Fluid
HPU
Aker Solutions
Aberdeen
Condition
Monitoring
Module (CMM)
Vetco/ABB
Power System
12 -
Interfaces - Key responsibilites
• FMC was the lead interface party for entire subsea production system
• Aker Solutions had the system responsibility for the SRSWI pump system,
including condition monitoring and topside power system
• FMC had the system responsibility for the control system (KS 200e + SAS)
• The Aker Solutions SRSWI system is controlled by SAS from Kongsberg Maritime
(KM) via the FMC control system for the subsea functions
13 -
Interface Experiences - General
• Positive spirit, open minded atmosphere and good collaboration between
the interface parties
• Control system interfaces were especially challenging, but solved through
good cooperation
• Some challenges in interfaces vs topside project in early phase
• Statoil Team hands on in the interface work
14 -
EPC Contract – SRSWI Pump SystemExperiences
• Close and good
cooperation between
Statoil Team and Aker
Solutions
• Successful integration
test of Aker Solutions
pump cassette vs FMC
template and manifold
Integration Test: Pump cassette vs template
and manifold. Hub on pump cassette
provided by FMC
Pump
Cassette
FMC
manifold
15 -
EPC Contract – SRSWI Pump SystemExperiences
• Successful System Function Testing at Aker Solutions Tranby, with Aker
Solutions, FMC, KM and Statoil all ”pulling in the same direction”
• The pump system proved to deliver more than targeted rating
• Delayed motor delivery from vendor caused internal delays for Aker Solutions
• Life Cycle Information (LCI, i.e. documentation) deliveries significantly delayed
16 -
EPC Contract – SRSWI Pump SystemExperiences
• Good facilities in Horten for execution
of final integration test
(interchangeablilty of modules) and
shallow water test
• Good efforts put on by ABB and Aker
Solutions during ”last minute” changes
to subsea transformers to get them
ready for delivery and load out in time
Integration test in Horten
17 -
VSD-
room
HV-
room
Transfor
mers
Topside modifications and installation
”Tower of Power”
19 -
Installation of topside located equipmentExperiences
• SRSWI transformers, VSDs and Barrier Fluid HPU were delivered by Aker
Solutions, and provided as CPI to topside installation contractor Aker Reinertsen
• Demanding interface due to:
− Interface/LCI responsibilities of the parties not clarified good enough at
project start up
− Late interface information from subsea to topside
• Long time between installation and MC&C as the SRSWI system had low priority
20 -
Marine Operations
• Pump cassette, subsea transformers and
power umbilicals were installed by Scandi
Acergy
• Sequence:
1. Pump cassette into template W
2. Power Umbilical from Kristin to
junction box (JB) lay down point at W
location
3. Subsea transformers into template W
with split out umbilical ends laid down
at JB lay down point
4. Retrieval and splicing of main power
umbilical and split out umbilicals
Skandi Acergy
21 -
Marine Operations - Installation
22 -
Marine Operations – Umbilical Junction
1. Umbilicals hung
off in joint box
(JB) and
conductors
jointed by Nexans
crew
2. JB panels fitted.
Note plates
securing the JB
to the moonpool
doors. Temporary
bend stiffeners
were fitted below
3. JB lifted from
deck, pulling up
bend restrictors
4. JB laid down on
seabed
23 -
Marine OperationsExperiences
• Load out of Power Umbilical was time critical due to narrow margins for
Skandi Acergy getting through Svinesund
• ”Bird caging” caused repair work that delayed the load out of the Power
Umbilical
• Splicing of main power umbilical to the two split out umbilicals by fixing JB
to moonpool doors proved to be very efficient
• A stray buoyancy element stuck in the I-tube caused
delayed pull-in
24 -
MC and CommissioningExperiences
• MC of power system performed by topside project with assistance from Aker
Solutions
• MC of barrier fluid HPU performed by FMC
• Part-commissioning and testing of the pump system performed in July 2010 (min
flow mode) with assistance from Aker Solutions and Kongsberg Maritime
• Final commissioning planned Q1 2011, after injection well is completed.
25 -
Tyrihans SRSWI – Project Execution Experiences
Nils Petter Time
Principal Engineer
npt@statoil.com, tel: +47 950 39 204
www.statoil.com
Thank you