fleet renewal and future
TRANSCRIPT
Fleet renewal and future proofing shuttle tanker operations offshore Brazil29 March 2021 • 16:00-17:30 BSTPremier partner Sponsored by
Part ofShuttle Tanker
Tech & Ops Webinar Day29 March 2021
Panellist documentsPage 2: Lauri Tianen, WärtsiläPage 17: Christian Fjell, AlteraPage 30: Geir Sekkesæter, OSM Europe
SPECIAL FOCUS ON THRUSTERS AND STATION KEEPING PERFORMANCE IN BRAZIL
Lauri TiainenDirector, Thrusters and Propulsion Control SystemsWärtsilä Propulsion
FUTURE PROOFING PROPULSION SOLUTIONS FOR MODERN SHUTTLE
TANKERS
WÄRTSILÄ HISTORY OFFSHORE THRUSTERS
Established by
Max Lips
1939Wärtsilä
acquires LIPS
2002
+50 years of experience in designing and manufacturing of thrusters
1st Lips Offshore
Thrusters
1967
1967
1976
2011
1st Lips Modular
Thrusters
1st
RetractableThrusters2300kW
2014
2020
19811st underwater demountable
Thrusters3000kW
19931st 5500kW
thrusters 19981st 5500kW Retractable
thrusters
2002LIPS
become WärtsiläThrusters
Introduction Next
generation Thrusters
20131st
Delivery 8 degree tilted
Thrusters
Next generation retractable
WST-R
Install base Reaching 35
million running hours
20191st
Delivery 6500kW
Retractable
© Wärtsilä
FOCUS ON VESSEL PERFORMANCE
PRODUCTSWST-U WST WST-R WTT Propellers
Underwater mountable
series
Steerable series
Retractableseries
Transverseseries
Controllable pitch & fixed propellers
TRANSIT AND STATION KEEPING PERFORMANCE
PERFORMANCE TOOLSTransit analysis OPTI-DP
analysis
3- 6.5 MW 1 – 5 MW 1 - 6.5 MW 0.5- 5.5 MW Up to 60MW
Quantify vessel performance
8 DEGREE TILTED UNIT VERSUS CONVENTIONAL
1º
5º
Effective deflection for 8º tilted shaft
Only for 8-degree tilted unit the deflection is sufficient to avoid hull interaction losses
Maximize Available
Thrust
Maximize Station Keeping
Performance
Wärtsilä 8 degree tilted unit CONVENTIONALOnly nozzle tilted 5 degree / Straight shaft
In case a 5-degree tilted nozzle is used, the downward deflection of the jet is not sufficient to eliminate the hull-interaction losses
CFD FLOW SIMULATION
Up to 20% difference in effective thrust to widen operational window
Alternatively less power installed – fuel consumption & wear and tear impact
© Wärtsilä
THRUSTER FEATURES DOES MAKE A DIFFERENCE
WÄRTSILÄ’S RETRACTABLE THRUSTER PORTFOLIO – FUTURE PROOF
• Compact design– Small footprint– Low weight
• Easy to integrate and install
• Same controls platform with main propulsion
• Reliable and maintainable partially even without dry docking
• Compliance with environmental regulations
• Alternative propeller sizes for varying needs – in strong Brazilian currents, biggest propeller with highest theoretical unit thrust is not necessarily optimal
© Wärtsilä
WÄRTSILÄ’S RETRACTABLE THRUSTER PORTFOLIO
WÄRTSILÄ SOLUTIONS
CP or FP propeller for thrusters?
• With modern efficient and robust variable frequency drives (VFD), FPP is the preferred solution for fast and efficient control of the thrusters
• FP propeller outperforms CP propeller by some 10-15% in thrust and power consumption
• FP propeller as a system has fewer moving parts and less maintenance needs
THRUSTERS – FEATURES DOES MAKE DIFFERENCE FOR BETTER LIFE-CYCLE PERFORMANCE
E-Retraction motor
E-Steering motor 1 E-Steering motor 2
BrakeControls
Cooling & HeatingControls
VFD
Electric steering and retraction:• High efficiency & redundancy• Limited components and interfaces• No hydraulic oil leakage• Limited maintenance and wear• Accurate and smooth steering
movements
OR FPP
VESSEL STATION KEEPING PERFORMANCE
Thruster performance Thruster Allocation Logic Vessel DP Capability
applying 3D CFD simulation knowledge
Thruster performances analysis enable optimum TAL to achieve maximum DP efficiency
Accurate hull interactions and forbidden zones
Force on the vessel Wind Current Waves either DNV-GL ST
0111 or customer input
With Courtesy of Wikipedia.org
OPTI-DP SHUTTLE TANKER – EXAMPLE CASE 1 - PETROBRAS SPECIFICATION FOR SHUTTLE TANKER
Unit Type Power [kW]
T1 (bow) TT1 3100
T2 (Bow) STR1 3100
T3 (Bow) STR2 3100
T4 (Stern) TT2 2200
T5 (Stern) STR3 2200
6 (Stern) CPP1 8000
T2 Single Failure
T2 & T3 Double Bow failure
[-15° ; + 15°]DP operation
All Intact
360 degreeDP operation
[-40° ; + 40°]DP operation
Benefits of 8deg tilted thrusters are counted but thrust values are derived from Petrobras requirements
Further DP improvement can be achieved by using the Wärtsilä thrusters thrust values
Different wind and current directions analyzedWith Courtesy of DNV-GL
© Wärtsilä
EXAMPLE CASE 2 - OFFSHORECUSTOMER CENTRIC APPROACH – WÄRTSILÄ DP OPTIMIZATION OPPORTUNITIES
• During operation wind and waves can come from every direction (360°)• Conventional thruster system and analyzing method does not provide acceptable solution• OPTI-DP and Wärtsilä 8deg tilted thrusters provides acceptable solution with same power installed
ConventionalNo full 360° DP
wind direction
%
WärtsiläOPTI-DP 360° DP
wind direction
%
© Wärtsilä
EXAMPLE CASE 2 - OFFSHORECUSTOMER CENTRIC APPROACH – WÄRTSILÄ DP OPTIMIZATION OPPORTUNITIES
• Starting point to optimize single line diagram and power management system
ConventionalNo full 360° DP
wind direction
%
WärtsiläOPTI-DP 360° DP
wind direction
%
LIFE TIME PREDICTION AND EXTENSION - PROPULSION CONDITION MONITORING SYSTEM [PCMS]
13 © Wärtsilä
EXTEND TIME BETWEEN OVERHAULS
5 . . . 10 YEARS
PCMS provides measurements and data analysis to support extension of maintenance intervals and condition based maintenance (CBM).
© Wärtsilä
CONCLUSIONS
FUTURE PROOFING PROPULSION SOLUTIONS FOR MODERN SHUTTLE TANKERS
• Optimum propulsion performance is based on a solid fundament of hydrodynamic knowledge
• While a CPP is often the best option for main propulsion, VFD driven FPP provides the best value in thruster solutions
• The combined operational aspects of vessel in transit sailing and station keeping are well understood by Wärtsilä experts
• Wärtsilä 8deg tilted retractable thrusters reduces power need and fuel consumption – key for optimized station keeping capability of the future
• Modern energy efficient and compact thruster features does make a big difference
• Same control system platform for main propulsion and thrusters – easy, safe, simple
• The less energy will be consumed, the more likely it is that your vessel will be economically and ecologically future proof
• Wärtsilä is willing to be engaged at early phase of your next ship projects
LNG as fuel onDP shuttle tankers6 vessels delivered, 1 year of operation -experiences so far
Christian Fjell – Sustainability Manager
Business Characteristics and Attributes
29 Shuttle Tankers• Multi-field exposure
• Fee-based contracts
• Limited replacement risk
• Largest player in niche market
• Critical to deliver oil production
9 FPSOs
• Fee-based contracts with fixed day rates
• Single-field exposure
• Strong performer for cost, capabilities, health & safety
• High switching cost creates effective barrier to entry
4 FSOs
• No direct exposure to commodity markets
• No seasonality
• Less capex intensive storage option
• Long life extension option of shuttle tanker fleet
10 Towing Vessels• Short-term contracts
• Required service for moving large floating objects
• Largest player in niche market
• Highest spec fleet in the industry
=
Altera E-Shuttle CO2 Emission Reduction*
60,000 Teslas
*25 000 CO2 tons per vessel x 4 = 100 000 tons CO2 reduced =tailpipe emission reduction from 60 000 Teslascompared to our last series of North Sea newbuilds
It’s not just an idea and a fancy animation..
• Aurora Spirit delivered January 2020• Suezmax size• Battery Safety notation• VOC recovery• First in a Series of 4
• Altera Wind and Altera Wavedelivered Q1 21• Aframax size• Battery Power notation• No VOC recovery
• Comissioning during Covid-times
Altera Rebranding
STS – Scapa Flow Aug 2020
1 year anniversary! – She grow up so fast
LNG - Lessons Learned
• LNG as fuel works well!• With the right machinery and power configuration -
LNG as fuel for DP operation is a great match.• Supply of LNG is not as standardized as conventional
fuels• Complex documentation• Complex agreement process between buyer/supplier• Periodic lack of supply. MGO fallback• Not readily available in Brazil and East Coast Canada
• Vessels themselves are complex, demanding more from both Manager and Charterer regarding technical acceptance.
• Technically no LNG related issues after commissioning• Crew adaptation has been excellent“Despite operation being more complex I find dealing with the LNG barges
a lot more positive and smoother compared to most MGO suppliers.”Chief Engineer – Tide Spirit
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OSM Maritime Group
Shuttle tanker operations offshore Brazil
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Who we areOSM Maritime Group
F R I E N D L Y | T E A M B U I L D E R S | R E S P O N S I B L E | A L W A Y S O N osm.no
• OSERV Catering
• Recruitment & Temporary Employment
• Nordic Medical Clinic (NMC)
• Green Recycling
• Lay-up Management
• Energy Efficiency
• New Building Management
• OSM Insurance (Crew & Marine)
• OSM Maritime Leaders Academy
Value Added Services
CORE SERVICES
Technical
Management
Crew
Management
OSM Maritime Group brings over three decades of experience in the Maritime Industry, approximately
15,000+ employees, 50+ nationalities, 30+ office locations, 600+ vessels/units under management, and
a 90% retention to the table.
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OSM Fleet DistributionOSM Maritime Group
31%Offshore
7% Cruise & Ferry
31%Dry
31% Tanker
Global Presence
• ARENDAL, NO• OSLO, NO• BERGEN, NO• COPENHAGEN, DK• ABERDEEN, SCOTLAND• HELSINKI, FI• ST. PETERSBURG, RU• RIGA, LV
• GDANSK, PL• SPLIT, HR• ODESSA, UA• LIMASSOL, CY• SHANGHAI, CH• TOKYO, JP• MANILA, PH• CEBU, PH
• MUMBAI, IN• SINGAPORE• NEW YORK, NY• PERTH, AU• HOUSTON, TX• FORT LAUDERDALE, FL• CIUDAD DEL CARMEN,
MX
• LUANDA, AO• MACAÉ, BR• RIO DE JANEIRO, BR• ABU DHABI, AE• NEW PLYMOUTH, NZ
30OFFICES
> 600VESSELS/UNITS
>15,000EMPLOYEES
> 90%RETENTION RATE
ARENDAL, NO
OSLO, NO
BERGEN, NO
COPENHAGEN, DK
ABERDEEN, SCOTLAND HELSINKI, FI
ST. PETERSBURG, RU
RIGA. LV
SINGAPORE
TOKYO, JP
MANILA, PH
CEBU, PH
GDANSK, PL
SPLIT, HRODESSA, UA
LIMASSOL, CY
SHANGHAI, CN
MUMBAI, IN
NEW YORK, NY
PERTH, AU
HOUSTON, TX
FORT LAUDERDALE, FL
CIUDAD DEL CARMEN, MX
LUANDA, AO
MACAÉ, BR
RIO DE JENAIRO, BR
ABU DHABI,
AE
NEW PLYMOUTH, NZ
TECHNICAL MANAGEMENT OFFICES
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Environment initiatives & regulationsOSM Maritime Group
We are experience an increasing interest and pressure in the environmental performance in shipping. Over a short period, we have seen the birth of a lot of different environment initiatives & regulations.
• EU MRV (2018)
• IMO DCS (2019)
• Initial IMO Strategy on reduction of GHG emissions from ships (2018)
• MEPC 75 - EEXI, CII, enhanced SEEMP
• Poseidon Principles (June 2019)
• Sea Cargo charter (2020)
• UN Sustainable Development Goals (2012)-Global Reporting Initiative (GRI)
• Increasing public demand
• And Others: Global Logistic Emission Counil, Energy Transition Commission, Carbon Disclosure Project, ETS, Climate Bonds initiatives and so on.
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Fuel EfficiencyOSM Maritime Group
Environmental performance is closely linked with vessel efficiency.
• Vessel design and alternative fuels
• Hull Performance
• Weather routing
• Slow steaming
• Energy utilization (Aux, boiler, etc.)
• Retrofit of Energy saving devices
• Data collection and utilization
• Qualified Crew
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OSM Shuttle Tanker ExperienceOSM Maritime Group
• Operate 9 DPSTs in North Sea & Brazil
• 1+1 New build for Brazil delivery 2023
• Operated the first Shuttle tanker 1979(Rasmussen Maritime)
• Historical fleet 13 Shuttle tankers in the North Sea
• Shuttle tankers designed for hazard areas, predominantly for theBarents Sea
• Operated and develope VOC plant for DPST operation
• Dedicated office personnel with extended LNG and VOC experience
• Tailor made training program for officers and crew
VOC: Volatile Organic Compund
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Shuttle Tanker Dual Fuel DP LNG/VOC OSM Maritime Group
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Shuttle Tanker Dual Fuel DPST OSM Maritime Group
Next generation LNG Dual-Fuel Dynamic Positioning Shuttle Tankers serve on long-term charter to Norway`s Equinor under OSM Maritime Technical Management.
• When delivered it was the cleanest DPST`s ever built, will emit 40-48% less carbon than equivalent vessels.
• Aligned with the International Maritime Organization`s (IMO) GHG ambitions
• Vessels will also be able to capture 100% of the harmful Volatile Organic Compounds (VOC) which escape into the air from crude oil cargoes during loading and voyage for reuse as a supplementary fuel
• The twin DPSTs is propelled by two low pressure dual-fuel two-stroke engines, which fulfil the IMO Tier III emissions requirements in gas mode without any exhaust gas after-treatment required.
• Designed for operations in the Norwegian, North and Barents Seas, these DPSTs are equipped with the latest generation of bow loading system and shaft generator with DC switchboard
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Direct Offshore Loading to Trading Tankers
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Loading arrangement from FPSO to CTV similar to DP shuttle tanker offloadingA
Offloading solution similar e.g. CALM buoy operationsB
A
B
C
Total distance between FPSO and tanker greater than for DP shuttle tanker operationsC
Technology / Equipment providers
Safe Offshore Loading - Proven Technology & Operations
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CTV Operation – Reduced CO2 footprintCO2 footprint calculation for CTV operation and benchmarking with conventional DP shuttle tanker operation
Independent analysis to compare CTV operation with DP shuttle tanker operation in various scenarios. The study also compared the CTV
operation against various types of DP shuttle tankers operations (conventional and dual-fuel). It is concluded that in all scenarios, the CTV
offers a significant reduction in CO2emissions:
• For a typical offloading operation of 1 million barrels of oil from an FPSO, using a CTV offers up
to 79% CO2 emission reduction in comparison with using a conventional DP shuttle tanker and
71% CO2 emission reduction with using a dual-fuel DP shuttle tanker.
• For a 25 years license operation in a representative oil field in the Santos Basin, off the coast of
Rio De Janeiro (Brazil), CTV operations offer up to 73% reduction in CO2 emissions compared to
conventional DP shuttle tanker operations, and 62%reduction in CO2 emissions compared to
dual-fuel DP shuttle tanker operations.
• The year round operation using CTVs for the same representative oil field will reduce CO2
emissions by around 188,000 tonnes per annum. This is equivalent to CO2 emissions of more
than 40,000 passenger cars driven for one year.
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Thank You!