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# 20 October 2013 Partnerships that produce results Ever deeper, ever colder The challenges for GustoMSC CAN DO 20 Kpsi drillship Home Sweet Home IN THIS EDITION Brazilian Market and projects covering the DSS38E and Qdrill in detail GustoMSC

GustoMSC InSide 20 - October 2013

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GustoMSC InSide 20 - October 2013

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  • #20October 2013

    Partnerships that produce results Ever deeper, ever colderThe challenges for GustoMSC CAN DO 20 Kpsi drillship Home Sweet Home

    IN THIS EDITION

    BrazilianMarket and projectscovering the DSS38E and Qdrill in detail

    GustoMSC

  • Contents 3 Preface

    4 Full speed ahead for Brazil's offshore industry

    8 Partnerships that produce results

    10 Ever deeper, ever colder. The challenges for GustoMSC

    12 Qdrill and DSS38E

    14 CAN DO 20Kpsi drillship

    16 Home Sweet Home

    18 "The proof of the pudding is in the eating"

    20 GustoMSC Tri-Floater design verified in wave basin

    22 Recent projects and deliveries

    Inside is a publication of GustoMSC

    GustoMSC serves clients in three offshore energy key markets:

    exploration, construction and production. Proprietary designs of

    jack-ups, semi-submersibles and vessels lie at the heart of our activities.

    These designs always meet specific client requirements, based on solid

    and proven foundations and a sea of experience.

    Colophon

    GustoMSC Inside is a publication ofGustoMSC B.V.

    Total circulation: 4000This publication is edition 20, October 2013Edited by: Bahare Boersema andMonique van der Have

    Design and production Stijlmeester, Utrecht (NL)

    All editorial material is the property of GustoMSCabove mentioned company and may therefore not be copied or reproduced without our approval.

  • In 2011 we proceeded with the integration of Gusto and Marine

    Structure Consultants into GustoMSC and moved to another

    building. In 2012 our managing director Han Mommaas stepped

    down after nearly twenty years at the helm (staying on as

    Principle Consultant) and we celebrated our company's 150th

    birthday! In November 2012, GustoMSC was spun-off from

    SBM Offshore and started operations as an independent

    organization. We are now better positioned as independent

    designer and supplier of associated equipment. Our subcontrac-

    tors are a great help and partners in this respect. In recent

    months our new internal organization for Finance, IT and HR has

    become fully operational.

    In the meantime, as the market for mobile offshore units has

    grown, so has our market share. Whereas two years ago, when

    Gusto and MSC merged, there were 29 GustoMSC designed mobile

    offshore units (MOU) under construction, today there are more

    than 60; about one quarter of these will be used for oil and gas

    drilling offshore Brazil.

    This issue of InSide highlights Brazil's growing market and its and

    GustoMSCs response to this. Since 2006, a major new oil or gas

    province has been discovered and announcements of major oil

    field discoveries are commonplace. Developing and operating

    these new fields will provide many jobs and serve to stimulate

    further economic development. The government of Brazil wants to

    ensure that its own people and the Brazilian business community

    receive optimum benefit from this situation. The Brazilian

    offshore oil and gas industry is developing fast to respond

    effectively to the needs of exploitation of huge new reserves.

    Much research, development and production must naturally be

    started from the ground up. The oil is miles offshore, in deep

    water and under a wondrous layer of salt far below the sea floor.

    This all demands new, adapted technology. The Brazilian shipbuild-

    ing tradition is undergoing an unprecedented renaissance after

    the last growth period in the 1970s, and this new phase is

    presenting the Brazilian shipbuilding industry with significant

    technical challenges.

    GustoMSC is certainly part of these new developments and the

    re-birth of the Brazilian shipbuilding industry, contributing with

    expertise in offshore vessel and mobile offshore unit designs.

    Between now and 2019, six semi-submersibles and nine drillships

    designed by us are being built in Brazilian shipyards. GustoMSC is

    proud to be teaming up with Brazilian companies to supply the

    basic designs for more than half the vessels in one of the largest

    international offshore tenders in history. These are prestigious

    orders that re-affirm our international reputation. In the

    meantime, development of new GustoMSC designs continues

    strongly: MOUs for ever-deeper, ever-colder Arctic waters,

    sophisticated offshore construction vessels, wind turbine

    installation vessels, harsh environment jack-ups, and so on.

    There's more about those as well in this issue.

    I hope you will enjoy reading this InSide magazine. We at

    GustoMSC look forward to adding new milestones to your thriving

    industry, in close association with you

    PrefaceFor more than 10 years, we have been keeping our business relations informed of developments

    in the offshore sector and our organization by means of our semi-annual InSide magazine.

    Rarely have developments been so rapid as in the past year and our own activities are expanding

    equally quickly. In Brazil, for example, now 15 drilling rigs have been contacted based on our licensed

    designs, construction of which will be running through to 2019.

    Nils van Nood,Managing director GustoMSC

  • 4 GustoMSC | InSide 20

    In October 2013, Brazils National Petroleum Agency (ANP) plans

    to offer production contracts for 40 billion barrels of oil in place

    - the first auction of production rights for oil in the Brazilian pre-

    salt fields in the Santos Basin. Anything near 40 billion barrels

    could supply the entire United States with oil for many many

    years.

    Every two yearsThe Brazilian government plans to hold similar auctions every

    two years for pre-salt oil recovery and offer concessions in

    current production areas and areas outside the Pre-Salt region.

    It is certain that these new bid rounds will increase demand for

    drilling rigs, production platforms and construction vessels, key

    components of GustoMSC technologies and designs portfolio.

    Illustrative of the rapid pace is the influx of orders from

    Petrobras. April 2013 saw the company sign a contract for 23

    support vessels. It approached the market again in July for an

    additional 24.

    These purchases were part of the Third Fleet Renewal Plan for

    offshore support vessels, which should fulfill the 2014 contracting

    target of 146, all to be built in Brazil.

    Local content and foreign expertiseThe vessels that were ordered this Spring, will be built in

    Brazilian shipyards and for this, the government is supporting

    the involvement of local investors. Local content is now part of

    national legislation. The government stipulates that within a few

    years at least 60 percent of vessels and infrastructure will be

    Made in Brazil.

    The scale and pace of progress means some foreign expertise and

    technology will be essential. Foreign companies can opt for private

    partnership or a Brazilian subsidiary to meet tender criteria. To

    facilitate this tendering processes and regulatory frameworks

    have been streamlined. Several leading financial institutions have,

    in addition, simplified their lending processes specifically to help

    overseas investors.

    The immense oil reserves recently discovered off the coast of Brazil are bringing huge investments

    into the countrys offshore oil industry. Exploration and production are demanding construction of

    dozens of deepwater drilling rigs and production platforms. Knowledge and technological advances

    from companies with a rich shipbuilding history will be indispensable for successful development.

    Exciting prospects for engineering and design companies such as GustoMSC.

    Bahare Boewrsema en Fernando Frimm

    Full speed ahead

    for Brazil 's offshore industry

  • 5GustoMSC | InSide 20

    Major reform agendaThe challenges facing Brazil are clearly

    proportionate to the countrys newly discovered

    oil reserves. Petrobras is seeking to implement

    a major reform agenda as part of its strategic

    plan, which involves investments of US$ 230

    billion through 2016. As one of the auction

    conditions, Petrobras, the countrys state-run oil

    company, will serve as project leader and receive

    a minimum 30 percent stake in all new projects.

    At the 20th World Petroleum Congress,

    Guillherme Estrella, Petrobras Head of

    Exploration and Production, explained that the

    location and geological formations involved will

    demand special technological and logistical

    approaches.

    Water injection experiments have been

    conducted in the Lula field. Drill and production

    equipment will need to be resistant to corrosion,

    low temperatures, extreme pressures and

    shifting salt masses. It will not be easy.

    Million a dayIn spite of these significant technological

    and economical challenges, seven years after

    discovery this new offshore frontier already has

    significant production. In 2013, fields operated

    by Petrobras and its partners in pre-salt areas

    were at 300,000 barrels per day. By 2017

    Petrobras expects to be recovering over

    1 million a day.

    Pre-salt oil fieldsIn 2006, Brazils national oil company Petroleo

    Brasileiro (Petrobras) discovered the first major

    oil reserve in a deep sub-salt reservoir. The Lula

    field (until 2010 known as Tupi), is estimated to

    hold 5 to 8 billion barrels of oil equivalent (BOE).

    The pre-salt frontier is one of the most prolific

    offshore oil provinces in the world. Brazilian

    National Petroleum Agency (ANP) estimates

    pre-salt reserves about 50 billion BOE. Other

    specialists believe that these estimates are too

    conservative, indicating possible reserves of the

    order of 120 billion BOE.

    for Brazil 's offshore industry

    The Pre-Salt layer is a good heat conductor, resulting in lower temperatures than expected in the reservoirs. Combined with high pressure it raises a new set of technological challenges.

  • 6 GustoMSC | InSide 20

    RIO DE JANEIROBRASFELSSRD OffshoreEmpresa Brasileira de Reparos Navais REN AVE ENAVAL Engenharia Naval e OffshoreEstaleiro MAUMAC LAREN OIL EstaleirosSERNAMAN Servios Navais e ManutenoSTX OSV NiteriUTC EngenhariaALIANA Indstria NavalEISA Estaleiro IlhaICN Itagua Construo NavalIESA leo e GsRIO NAVE Servios NavaisNavegao SO MIGUELTRIUNFO OperadoraSERMETALCASSINOSX Construo NavalDOCKSHORE Navegao e Servios

    SO PAULOCAMARGO CORRA NavalConstrutora QUEIROZ GALVONavegao SO MIGUELRIO TIET (Araatuba)SETAL Engenharia Construes e PerfuraesVELLROY Estaleiros do BrasilWILSON, SONS

    SANTA CATARINADETROIT BrasilEstaleiro ITAJAEstaleiro NAVSHIPKEPPEL Singmarine Brasil

    RIO GRANDE DO SULEBR Estaleiros BrasilRG EstaleirosQUIPWILSON, SONS

    AMAZONASEstaleiro BIBI

    PAREstaleiro RIO MAGUARI

    CEAREstaleiro INACE

    PERNAMBUCOEstaleiro ATLNTICO SULEstaleiro PROMAR

    ALAGOASEISA Alagoas

    BAHIAEEP Estaleiro Enseada do Paraguau (ODEBRECHT / OAS / UTC)

    ESPRITO SAN TOEstaleiro Jurong Aracruz

    Brazils entire pre-salt reservoir is 800 km long and 200 km wide.

    Current exploration and production efforts are being mainly

    applied in the Santos Basin Pre-Salt Cluster (SBPSC).

    Production currently involves the following platforms:

    Santos Basin;

    Lula field: FPSO Cidade de Angra dos Reis and

    FPSO Cidade de Paraty

    Sapinhoa field: FPSO Cidade de So Paulo

    Sapinhoa Norte field: FPSO Cidade de So Vicente

    Campos Basin;

    Baleia Azul field: FPSO Cidade de Anchieta

    (4) Units previously operating in post-salt: tbn1, tbn2, tbn3, tbn4

    Between 2014 and 2016 another 11 production units will be

    installed, ten in the Santos Basin and one in the Campos Basin.

    These units will allow production to reach about 1 million barrels

    per day.

    Oil recovery is expensive and complex as oil is located far from the

    coast at extreme depths, and under a heterogeneous and uneven

    offshore salt layer. The oil soaked pre-salt rock layer is 5,000 to

    6,000 meters below sea level, under a salt layer - which can be up

    to 2,000 meters thick - and a post-salt rock layer. The water has

    a depth of 1,900 to 2,400 meters. The fields are typically 300 to

    350 kilometers from the coast.

    Full speed ahead

    for Brazil 's offshore industry

  • 7GustoMSC | InSide 20

    Brazilian Shipbuilding and Offshore Construction IndustryBrazil currently has 47 shipyards, with 11 new yards under

    development (as of June 2012). The Brazilian shipbuilding

    industry directly employs 59,000 people. The country has 33

    offshore deep-water drilling platforms, with 18 new platforms

    under construction.

    Presently, there are four areas that concentrate shipbuilding

    activities for the offshore industry in Brazil. Rio de Janeiro has

    11 shipyards; Rio Grande do Sul has two shipyards in operation

    and one under construction and other fabrication yards for

    production modules; Santa Catarina has five shipyards specialized

    in the construction of offshore supply vessels; and Pernambuco

    one shipyard with three more planned. Two more areas are under

    development with shipyards under construction. In the Bahia

    state, the Paraguau shipyard and in Espirito Santo state, the

    Jurong shipyard.

    According to SINAVAL, the organization that represents shipyards

    and repair yards, in the first quarter of 2013 there were 373

    vessels and platforms ordered or being built in Brazil. These

    orders included 73 supply vessels, 17 tug boats, 66 oil tankers,

    13 floating production platforms, 16 production topsides and 28

    deepwater drilling rigs. An impressive program. Overall projections

    indicate that in 2020 the total contracts awarded to offshore

    related shipbuilding activities in Brazil will amount to US$ 100

    billion, resulting in a yearly output of the order of US$ 15 billion

    for the coming years.

    Through 2020 Petrobras plans to invest in 50 new production

    platforms, 50 drilling rigs, 500 offshore supply vessels and 130

    oil tankers. Some 80 additional companies jointly exploit over

    300 oil and gas concessions in Brazil, 78 of which offshore. This

    will also impact demand for drilling rigs, production platforms,

    supply vessels, wellhead and sub-sea production equipment.

    Among these companies are international oil majors such as BG,

    BP, Maersk, Panoro Energy, Petrosynergy, Repsol-Sinopec, Shell,

    Sinochem, Sonangol, Statoil, Total and also Brazilian companies

    such as OGX, Barra Energia and Queiroz Galvo E&P.

    GustoMSC in Brazil As part of the initiative to equip Brazilian companies with latest

    generation rigs, Petrobras created a program to charter 40 rigs

    to Brazilian drilling contractors. The initial 12 rigs were built in

    international shipyards, and of these, five were GustoMSC latest

    generation deepwater semi-submersibles: the Lone Star and

    Norbe VI of TDS2000 design, the Delba III of TDS2500 design

    and the Alpha Star and Gold Star of the DSS38 design.

    The remaining 28 rigs were chartered by Petrobras to Sete Brasil

    to be built at Brazilian shipyards. Of these 15 are GustoMSC

    designs being built at three Brazilian shipyards. In the state of

    Bahia, Paraguau Shipyard is building six Qdrill drillships. In the

    state of Rio Grande do Sul, the Rio Grande Shipyard is building

    three Qdrill drillships and in the state of Rio de Janeiro, BrasFels

    shipyard is building six semi-submersibles of the DSS38E design.

    Over coming years GustoMSCs designs will be well visible in

    Brazils offshore world.

    The Brazilian Pre-Salt area. Source: Offshore Support Journal

    Rio Grande do Sul: one shipyard in operation and one under construction.

  • 8 GustoMSC | InSide 20

    Partnershipsthat produce results

    The challenge to build these drilling units in Brazil is even more

    pronounced due to the fact that the countrys shipbuilding

    industry had been dormant for more than 20 years. Now it is

    undergoing a re-birth with the creation of new modern shipyards

    facing the tough mission to fulfill the huge local content demand

    for offshore platforms ordered by Petrobras and other oil

    companies operating in Brazil.

    In this scenario, where errors and delays can have significant

    consequences, a partnership with an experienced designer with

    knowhow and track record can be of importance. For this reason,

    Brazilian shipyards see an ideal partner in GustoMSC to provide

    the basic design for several of the deepwater drilling rigs ordered

    by Sete Brasil. The choice of GustoMSC basic designs is providing

    the Brazilian shipyards with the confidence that the units would

    perform as required, that the overall project could be executed

    as originally planned and, more importantly, without undesirable

    surprises.

    Because of GustoMSCs knowhow, the basic design of the Qdrill

    drillship being built at the Rio Grande (Group Engevix/Ecovix)

    and Enseada do Paraguau (EEP) shipyards - two of GustoMSC

    main clients in Brazil - was fully vetted by Petrobras and promptly

    accepted by Sete Brasil, allowing the shipyards to rapidly start the

    detail engineering and construction planning of the drillships,

    which will sink offshore wells in the Brazilian pre-salt oil province.

    "GustoMSCs knowhow and experience was of paramount

    importance for us to have our Basic Design accepted by our

    client", says Francisco Dezen, the Drillship Project Director at

    EEP. "GustoMSC has worked alongside our team during the

    whole process of transferring the basic 3D models to our detail

    engineering teams, all the way through seeking and obtaining the

    classification society approvals."

    Mr. Dezen also points out the robustness of GustoMSCs design

    provided EEP with more than usual flexibility to choose equipment

    suppliers, which allowed construction to start ahead of schedule.

    "Another factor was that the Qdrill is a compact design demanding

    less steel to be processed, which positively impacts construction

    methods, overall construction schedule and costs," said Dezen.

    The Engineering Coordinator at Ecovix, Cassiano Marins de Souza,

    emphasizes that the partnership with GustoMSC translated into a

    high level of confidence for the company during project execution.

    "GustoMSC has offered great technical support and guaranteed

    a reliable basic design; its experience and track record, especially

    with drillship designs, has been crucial", said Mr. Souza.

    "One of the main reasons that allowed us to advance quickly was

    the quality of GustoMSCs basic design work", he emphasizes.

    Fernando Frimm

    Located in Maragogipe, Bahia State, the EEP shipyard already has 30% of its construction work concluded

    The construction of ultra deepwater drilling rigs is difficult

    for any shipyard. These are complex units, with sophisticated

    machinery and equipment, which have to fulfill demanding

    requirements and regulations. By the same token, their

    design takes into consideration many aspects not shared by

    conventional vessels.

  • 9GustoMSC | InSide 20

    Local ContentAccording to Cassiano Souza, GustoMSCs basic design allowed the

    company to consider different manufacturers for the several main

    systems onboard. "We had no difficulty to find equipment suppliers in

    Brazil for many of the rigs components and systems, such as electrical

    panels, motors, drivers, inverters, etc.", he adds.

    Francisco Dezen also mentioned the electrical systems as one of the

    areas where his company successfully managed to find local Brazilian

    equipment providers. "Another example is the accommodation block

    that will be manufactured entirely in Brazil", adds the EEP director.

    Brazilian shipyards working in partnership with GustoMSC

    Estaleiro Enseada do Paraguau - EEP

    Based in Magarogipe, Bahia State, EEP's main activities will be related

    to the construction and integration of offshore platforms, such as

    floating production units, drilling rigs and specialized offshore vessels.

    EEP is a new company with Odebrecht, UTC, OAS and Kawasaki Heavy

    Industries as main shareholders. The shipyard is under construction

    and will start operations mid-2014. When fully operational, it will have

    the capacity to process 36,000 tons of steel per year. Total investment

    is of the order of R$ 2.6 Billion.

    The EEP shipyard will build six GustoMSC designed drillships: Ondina,

    Pituba, Boipeba, Interlagos, Itapema and Comandatuba; capable of

    drilling in water depths of 3,000 meters. These units will be delivered

    by 2020. Total contract price is around R$ 4.8 Billion.

    Ecovix

    Ecovix was created in March 2010 as a subsidiary of Engevix Engenha-

    ria S/A to construct eight FPSO hulls for Petrobras. To undertake this

    contract and indeed other future orders the company acquired a new

    shipyard recently built at the Rio Grande Port complex, in the state of

    Rio Grande do Sul. In 2011, Ecovix closed an R$ 2.3 billion contract for

    the construction of three GustoMSC Qdrill drillships: Cassino,

    Curumim and Salinas.

    BrasFELSBrasFELS is the Brazilian subsidiary of Keppel FELS Singapore, which is

    a traditional builder of offshore platforms and drilling rigs.

    Keppel FELS has a long partnership with GustoMSC that foresees all

    semi-submersible drill rigs built at the Singapore shipyard would be

    either designed by GustoMSC or developed through a joint design

    effort (which was the case of the DSS series starting with the DSS20

    back in the mid-90s).

    The design partnership with Keppel FELS was extended to the BrasFELS

    shipyard and, consequent to the contract with Sete Brasil. GustoMSC

    and Keppel FELS jointly developed the DSS38E, which is an enhanced

    version of the DSS38 semi-submersible capable of drilling in water

    depths of 3,000m. BrasFELS secured the contract with Sete Brasil to

    build seven of these units for a contract budgeted at R$ 5.2 Billion.

    Francisco Dezen, of EEP: partnership with GustoMSC was of paramount importance for Sete Brasils approval of the drillship project. Picture Marcus Almeida/Somafoto.

    Cassiano de Souza, of Ecovix: GustoMSC design allowed flexibility to choose equipmentproviders for the main systems and equipment. Picture Marcus Almeida/Somafoto.

    EEP Shipyard

  • 10 GustoMSC | InSide 20

    The challenges for GustoMSC

    In November 2012, SBM Offshore divested GustoMSC to

    management and ING owned private equity firm Parcom Capital.

    Will this privatization affect the company's direction?

    No. The most important difference is that we can now keep to

    the course that we had already set out - more easily and with

    more focus. Our activities were no longer fitting SBM Offshores

    business model.

    So designing mobile units for exploration, construction and

    production in the offshore industry will remain the core

    business?

    Absolutely. That, plus the delivery of associated equipment like

    jacking systems. The replacement of the aging international

    offshore fleet will likely be an important driver in the market in

    coming years. A large portion of this fleet was built in the 1980s

    and is nearing the end of its design life. There is still oil and gas to

    be exploited offshore, and new reserves of fossil fuels continue to

    be found under the sea bed. Renewable energy sources and shale

    gas will undoubtedly become more important, but as it seems

    now, they will not likely be able to cause a significant reduction in

    demand for offshore oil and gas. That means good opportunities

    for us for new-build units in growth markets such as Brazil.

    Besides that we see the shift towards China for the construction

    of mobile offshore units. The large construction capacity and

    excellent financing conditions in China are among the drivers for

    the recent construction peak in our market.

    How has the economic crisis affected GustoMSC's activities?

    Not at all, to be honest. Our market is global and determined

    only to a limited degree by Europe. Currently the market for our

    products is excellent. GustoMSC is undergoing unprecedented

    growth. To give you an idea: since the 1950s, we have supplied the

    design for some 250 mobile offshore units.

    More than one fifth of these, approximately 60 units, are

    presently contracted for construction. The foundation for our

    current success was laid years ago when during times with low

    activity the first standard designs were developed for, for example,

    our successful series of CJ drilling jack-ups. Then we were

    primarily an organization of dedicated and inventive consultants.

    Now, in addition to that, we are also involved in production - both

    of our designs and for the delivery of our associated equipment

    and in supporting our customers operations. This requires a

    different approach.

    At the same time, we must not lose sight of the fact that, while

    we are active with serving the market with designs and

    equipment, we need to keep developing new products in order to

    meet future demand. Next to the pressure of our flourishing daily

    business, that is our greatest challenge.

    What new demands does GustoMSC expect from the market?

    "Recovering offshore oil and gas is becoming ever more difficult.

    New fields are further offshore - in deeper water, in more extreme

    weather conditions or in Arctic areas. This requires specially

    designed and adapted equipment. Regulations are also changing,

    and we need to allow for this. Our CJ80, for example, is the

    answer to the demand for ever-larger drilling jack-ups that can

    be deployed in waters of 175 m deep. This is a follow-up to the

    success of our CJ70, which was prompted by the fact that, in

    severe weather conditions, jack-ups can remain longer operational

    than floating drilling units. In the area of drillships, we are

    developing new classes of vessels to provide more autonomy and

    to satisfy all future market and regulatory requirements. Drilling

    in the Arctic calls for more than just equipment that functions

    properly at extremely low temperatures. The polar regions are

    ecologically vulnerable, so the units must also be completely safe

    for the environment.

    "Deeper water and colder water. That is where mobile offshore units designed by us will be

    operating in the future. explains Nils van Nood, managing director of GustoMSC since 2012,

    sketching the future of GustoMSC's place in the sector. "While we are currently enjoying the fruits

    of our success, continuous development will always remain essential."

    Bahare Boersema

    Ever deeper, ever colder

  • 11GustoMSC | InSide 20

    How do you explain GustoMSC's growth?

    "Not many companies can do what we do with the same level

    of experience and expertise. Many shipyards have significant

    construction capacity and capability, but they do not have the

    necessary design experience, which is where our mutual interests

    meet. Design of mobile offshore units calls for highly specific,

    relatively scarce knowledge and experience. The basic design

    costs a fraction of a units total construction cost so barriers to

    license our designs are relatively low, especially when compared to

    the risk mitigated by applying our proven solutions.

    Many owners and operators demand a proven design from a

    supplier with a reliable reputation - such as GustoMSC - in order

    to safeguard their considerable investment. The fact that our

    designs often provide higher capabilities than others is thus an

    additional benefit

    I have every confidence for the future; it will be exciting and

    challenging for both us and our customers.

    Ever deeper, ever colder

    The current jack-up water depth record in the North Sea is with the West Elara (CJ70) of North Atlantic Drilling at Gullfaks at 135 m.

  • 12 GustoMSC | InSide 20

    Qdrill and DSS38E fit the Brazilian market

    The compact Qdrill design of GustoMSC enabled two yards to win

    building contracts. Nine Qdrill units will be built to GustoMSCs

    basic design. Three units by Engevix Construes Ocenicas

    (Ecovix) in the Rio Grande 2 shipyard in the South of Brazil, and

    six at Estaleiro Enseada do Paraguau (EEP) in the state of Bahia.

    The ships will be operated by the Brazil based drilling contractors

    Etesco and Odebrecht Oil and Gas (OOG).

    Brazilian requirementsThe Qdrill design was seamlessly tailored to the technical and

    functional requirements of the Petrobras pre-salt development

    program in order to enable the yards to offer a competitive bid in

    the tender.

    CompactThe Qdrill may be a compact design, but it maintains flexibility

    by adding smart and robust solutions to maximize usable deck

    areas, with fixed decks that can be used at all times. The vessels

    prime space is dedicated to drilling, and all layout considerations

    have the drilling function of the unit as the main priority. The

    accommodation is separated from the main sources of noise and

    vibration such as the engine room and mud pump room. Also the

    layout is in such a manner that the rig floor and derrick are kept

    free from smoke and soot particles.

    As an option the design supports application of the GustoMSC

    patented thruster retrieval system at all thruster locations.

    This enables higher transit speeds and more economical transits.

    The system also allows for in-situ maintenance up to full thruster

    replacement without the need to go into drydock.

    Integrated like her predecessorsThe Qdrill builds on a long tradition of integrated design; hull

    and equipment are highly efficiently integrated. It is yet the most

    compact drillship design of GustoMSC.

    Early to mid 2000 GustoMSC developed a new generation drillship

    which, resulted in the P10,000 NG design. To this date 16 units of

    this type are contracted. The P10,000 equals the same generation

    competitive design in drilling capacities, but using a smaller

    rig to achieve the same performance. Capital expenditures and

    operational can thus be reduced.

    For the PRD12,000 vessel size, associated costs and fuel

    consumption have been further reduced by utilizing modern

    and lighter drilling techniques. Replacing the Subsea BOP with a

    Surface BOP, for instance, has reduced the drilling loads and tank

    capacities required on the vessel.

    Qdrill main characteristics

    Two different Brazilian yards are building vessels to a design by GustoMSC. The compact Qdrill they are building fits therequirements of the Brazilian oil companies.

    Design

    Length Breadth Depth Draft

    Displacement Water depth

    Drilling depth VDL

    Power

    Thrusters

    DSS38E

    198.0 m

    34.0 m

    17.5 m

    10 m

    57,000 t

    3,000 m

    10,000 m Approx. 17,000 t

    44 MW

    6x 4.5 MW

    Sjoerd Hendriks en Robbert Kant

    GustoMSC Qdrill drillship for 3,000 meters water depth being built by EEP.

  • 13GustoMSC | InSide 20

    When completed, the rigs will be chartered to Petrobras for 15 years

    for drilling activities in the pre-salt areas located offshore the

    south-east coast of Brazil. Three rigs will be operated by Queiroz

    Galvo leo e Gs, two by Petroserv and one by Odebrecht leo e Gs.

    The rigs are scheduled for delivery from 2015 to 2019.

    The DSS38E drilling semi-submersible design is a new addition to the

    successful DSSTM series, all of which have been jointly developed and

    owned by Keppels Deepwater Technology Group and GustoMSC. The

    DSS38E design was based on experience gained from earlier units of

    the DSSTM series of design such as the DSS20 (Maersk Explorer),

    DSS21 (Maersk D-rigs), DSS51 (Transocean Development Driller 3)

    and the DSS38 (QGOG Gold Star and Alpha Star).

    The DSS38E design is tailor made to comply with the latest stringent

    requirements of Petrobras, and developed as an enhanced version of

    the successful DSS38 design, two of which have been in operation

    offshore Brazil for some years.

    The DSS38E design is innovative and cost-effective, rated to drill to

    depths of 10,000 metres below the rotary table in waters of up to

    3,000 meters depth. Its operational displacement is approximately

    45,000 tonnes. Each rig will have accommodation facilities to house a

    crew of up to 160 men. The vessel is designed to stay in position with

    the aid of eight Azimuthing thrusters and the configurations comply

    with the American Bureau of Shippings Dynamic Positioned System

    (DPS-3) requirements.

    DSS38E main characteristics

    Design

    Displacement

    Water depth

    Drilling depth

    Accommodation

    Dynamic positioning

    Thrusters

    DSS38E

    45,000 t

    3,000 m

    10,000 m

    160 POB

    DPS-3

    8

    Keppel Offshore & Marine is currently building six semi-submersible drilling rigs of the DSS38E design for Sete Brasil.

  • 14 GustoMSC | InSide 20

    CAN DO 20Kpsi drillship GustoMSC and Keppel Offshore & Marine join forces again

    Since 1984 the two companies have a trusted partnership on

    design development of offshore rig designs. The collaboration

    between them is built upon the successful DSS series of semi-

    submersibles, that have been developed by Keppel Offshore

    & Marine (KOM) subsidiary Deepwater Technology Group and

    GustoMSC. This partnership recently developed the DSS38E

    design on which Keppel has successfully secured contracts for

    building of six semi-submersibles for Petrobras which will be

    delivered from 2015 through 2019. In 2009 and based on the

    DSS joint development, the DrillDeep DS12,000 drillship series

    was developed, engineered and model tested. It will be available in

    single and double derrick configurations. The partnership between

    Keppel and GustoMSC has resulted in superior quality of product

    for customers as there is a seamless working relationship based on

    alignment of core values of the two companies.

    The CAN DO 20Kpsi drillship is based on the same principles as

    the rigs in the long track record of GustoMSC in mobile offshore

    units designs, and in particular drillships of which to date 43

    units have been or are being built to GustoMSC design, varying

    from the Pelican class to the P10,000. As a result the ships layout

    is dedicated to the drilling operations from keel up, without

    compromises. The design was jointly developed and customized by

    GustoMSC and KOMTech R&D arm of Keppel Offshore & Marine to

    meet the requirements of Oil Companies and Drilling Contractors

    after obtaining their feedback on the requirements that fulfill

    the demands of exploration, development and completion drilling

    functions of a modern day drillship that will continue to serve the

    needs of the Industry in years to come.

    The CAN DO 20Kpsi main step is taken in the well control systems,

    the ship is ready to receive two 20,000 psi well control systems and

    is able to store two full stack 8 Ram 20k BOPs. To be able to perform

    the operations efficiently the rigs loading capability is over 36,000 t,

    and the ballast capability and system is able to keep

    the vessel at an even draft at all times in the operation cycle.

    The functional, usable deck area has been maximized in order to

    maintain flexibility in operations coupled with excellent coverage of

    these areas. Flexibility is underlined by riser hold capacity well in

    excess of 12,000, exceeding current market performance.

    The vessel offers a fast mobilization time with a high transit speed,

    outperforming the current fleet. To save time on site the design

    is ready for thruster retrieval systems to be able to do onsite

    maintenance to avoid dry docking. This system will also allow crew

    to retract thrusters in sailing conditions, increasing speed and

    reducing fuel costs. The power plant arrangement is designed in

    full accordance with the latest environmental regulations, including

    the application of SCR systems. The system layout is in accordance

    with DP3 regulations, meeting and exceeding the safety standards

    stipulated by regulatory bodies, classification societies and oil

    companies. The funnel arrangement is split to create an open work

    deck aft of the moon pool.

    Keppel Offshore and Marine Technology Centre (KOMtech) and GustoMSC present a new joint

    development design product: the CAN DO 20Kpsi drillship. This new generation drillship targets new

    market requirements for 20k well control systems, dual BOP storage, high loading capability and

    enhanced functional deck space on an efficient and safe platform.

    KOMtech & GustoMSC

  • 15GustoMSC | InSide 20

    The 20k wells dictate the required drilling capabilities of the unit. The

    casing required will be heavy driving up the hook load, setback

    capacity and associated equipment. To cater for increased water depth

    capability the structures have been designed to receive heavier riser

    tensioners which are well integrated in the design. Mud pumps, mud

    pits, two ROVs, cementing unit etc. are integrated in the mud module

    which is placed above the main deck, creating a compact drilling plant

    with short distances and associated communication lines. On top of

    the mud module a flexible deck for third party activities has been

    created, and directly below the deck the high capacity sack store is

    located with direct access from the aft through a landing platform.

    The vessel is designed to create a comfortable and pleasant living

    environment for its 220 personnel on board that enhances the level of

    functionality with clearly demarcated areas for living spaces,

    recreational areas, public spaces and office spaces including third

    party offices. Direct access from Office areas with clear view of

    ongoing operations to the Working areas can be achieved through an

    access deck located at drillfloor level.

    The design has been fully model tested at MARIN in January this year

    and class approval for basic design has been obtained. Detail

    Engineering is almost complete and a full 3-D model for construction

    purposes has been created.

    The CAN DO 20Kpsi is another example of the two experienced

    companies offering a reliable, advanced and cost effective work horse

    for the offshore drilling industry.

  • 16 GustoMSC | InSide 20

    Home Sweet Home Remco van der List and Gerrit Jan Schepman

    With offshore oil and gas projects rapidly moving into deeper

    waters, the need for top quality accommodation aboard semi-

    submersible rigs is becoming increasingly important.

    The investments pay off in many ways, such as sidestepping hefty

    expenses associated with flying technicians and crew members

    out. For offshore accommodation, the intention is basically to

    offer high quality hotel functions at the highest safety standards

    to rig crews. Current offshore accommodation across the existing

    fleet consists either of newbuilds or converted units, but most are

    old, sometimes exceeding 30 years of age and are no longer in

    line with todays rules and regulations.

    With contractors expanding their fleets to respond to new

    production targets, they have started looking hard at their

    accommodation units. After all, the success of a rig is to a great

    extent a function of the well being of the crew.

    The more comfortable the crew, the better a rig performs.

    This is particularly the case in Brazil, whose government has

    urged state-owned oil major Petrobras to double its sales volume,

    specifying a target of 7 million barrels of oil equivalent (boe)

    per day by 2020. This upsurge in commercial expansionism is

    mirrored, albeit a tad less aggressively, by developments on the

    Norwegian Continental Shelf, particularly since the discovery - in

    Q4 2011 - of the Johan Sverdrup field, covering 180km2.

    The Norwegian government has recently decided to maintain its

    position as an important oil and gas supplier and consequently

    the existing fields will be further developed using improved oil

    recovery [IOR] methods - such as injecting high quantities of

    CO2 into oil-producing sources to extract the maximum amount

    possible, including hidden and hard-to-access reserves.

    This all means ever heavier demands being made on the operating

    crews. Thus the attention on accommodation.

    GustoMSC is aiming to meet rising offshore industry demands for modernized operating team accommodation, as oil and gas projects become more complex and move into deeper waters and harsher environments. New concepts are offering massive savings. And comfortable and appealing staff accommodation means efficient working crews. Its amazing what you can do to make guys happy.

    Floatel Superior

  • 17GustoMSC | InSide 20

    The 'Floating hotel' concept All of the above is raising demand for decent accommodation,

    complete with HVAC and facilities to accommodate and satisfy

    the needs of hundreds of workers at a time for extended periods.

    In response, GustoMSC has been researching various new

    accommodation unit designs. The first newbuilds entering the

    scene date in 2005.

    During that year, GustoMSC and Keppel Offshore m arine

    collaborated to develop the accommodation semi-submersible

    unit, the GustoMSC DSS20-NS-DP3, which was specifically

    developed to handle North Sea conditions. This concept was built

    in 2009 by Keppel for operator Floatel International. Delivered in

    2011 the unit was named Floatel Superior.

    The DSS2O-NS-DP3 type features a 63.5m x 64.5m deck area,

    has a draught of 18m and a displacement of 29,000 tonnes,

    with space to accommodate 440. The accommodation unit also

    features storage decks and spaces, deck cranes, a telescopic

    access bridge for safe and easy transfer of both workers and

    supplies between the unit and other offshore structures and a

    DP3 dynamic positioning system. All layouts meet the stringent

    NORSOK requirements. The Floatel Superior was one of the first

    newbuild accommodation units but the market is changing fast. In

    2012 Floatel ordered a sister vessel for delivery in 2015.

    In addition to these units, GustoMSC has developed the

    OCEAN500-DP3 accommodation semi-submersible unit. The

    OCEAN500-DP3 offers a deck area of 66m x 67m, 20m draught,

    displacement of 33,000 tonnes and capacity to accommodate 750.

    In 2012 the first unit was ordered by Cotemar for construction

    at Chinas COSCO group; this was followed by a sister vessel for

    delivery in 2014.

    Jack-up hotel Similar to the floating accommodation units, many jack-up

    accommodation units are based on a second life for drilling jack-

    ups. Typical jack-up accommodation units can be subdivided into

    two groups; units for worldwide operation in depths to 375-400

    ft and units for the harsh environments of such as the Norwegian

    Continental Shelf.

    The major advantages of jack-up units are the improved

    operability and significantly competitive operating costs. Where

    floating units are dependent on environmental conditions, leading

    to a limited 10-15% uptime in North Sea winters, elevated jack-

    ups offer 100% uptime. Together with CBI-MMEER, GustoMSC

    has developed the accommodation jack-up AJ46-360-C, based

    on the proven concept of the CJ series. The AJ46-360-C has

    been designed to operate in 375 ft water depth. The unit can

    accommodate up to 360 POB in modern accommodation blocks,

    with an extension to 450. To reduce the rigs footprint, the unit

    is equipped with a cantilever with 55ft reach. A 200 ton pedestal

    crane is mounted at the far end to serve the fixed platforms. The

    first unit was ordered early 2013 and the second in mid-2013;

    both are under construction at Dalian Shipbuilding and Offshore

    Construction for delivery in 2014 and 2015 respectively.

    For the North Sea and Norwegian Continental Shelf the

    accommodation jack-up can represent direct competition to

    floaters. As seen in the drilling market, the large jack-up drilling

    units, such as the CJ70-X150-B, are conquering water depths

    to 150 m as the most efficient drilling units. It will not take long

    before the same trend is seen in the accommodation market,

    especially in new development areas as new fields are brought

    into service.

    At this moment GustoMSC is developing the AJ62-X135-450,

    capable of operating in 135 m water depth on the Norwegian

    Continental Shelf with 450 POB, all accommodated in high level

    single person cabins. A trade-off for accommodation jack-ups

    is the possibility to act as a platform for plug and abandon and

    decommissioning of the many old fixed platforms in the North Sea.

    With its imaginative and responsive semi-submersible and jack-up

    accommodation designs, GustoMSC is paving the way for true at-

    sea Home Sweet Homes: high quality five star hotel concepts for

    the offshore industry, incorporating the highest safety standards,

    and keeping crews happy and effective.

    AJ46-360-C

  • Offshore Wind is currently one of the fastest growing industries

    in Europe and one of the most fascinating in the renewable green

    energy sector. In the first six months of this year, 277 offshore

    wind turbines - with the total capacity of over 1 GW - were grid

    connected. Currently 18 wind farms are under construction, and

    once completed these will have a total capacity of 5.1 GW.

    According to the European Wind Energy Association (EWEA),

    a total of 40 GW offshore wind capacity (about 10,000 wind

    turbines) is expected to be installed by 2020. This will equal 4.2%

    of EU electricity consumption. A total of 150GW is expected to be

    installed by 2030 (about 13.7 GW annual installations in 2030),

    supplying nearly 14% of European electricity consumption.

    The figures below show the annual offshore wind power installa-

    tions.

    Big toys for big boysThe offshore wind industry is still relatively new.

    In an effort to balance costs and revenue and raise

    energy output wind turbines will increasingly be sited even

    further offshore. Generally speaking the costs of offshore

    wind generation must drop by 40% to compete with

    traditional generation methods. Cost reductions can be

    realized by increasing turbine output and this will be the

    main focus, along with improving the transport and instal-

    lation efficiency of the installation vessels and overall

    logistics. The main challenges are the installation and

    assembly of components (not as heavy compared to Oil &

    Gas, but far more delicate) at great heights (100 to 120

    m), in greater water depths (>30 m) and the sheer repeti-

    tive nature of the work. This is creating logistics challeng-

    es and is requiring a flexible, stable platform from which to

    work. Big toys for big boys!

    The number of new generation installation Jack-up ves-

    sels ordered in 2010 was enormous. Some have already

    entered service. To date, sixteen new installation Jack-ups

    have been put to work in this market, some more success-

    fully than others. The majority are self-propelled Jack-ups,

    and this shows that other experimental concepts may

    not have passed the pudding test, or there was a lack of

    confidence in the artists impressions. Analysts suggest

    that the trend for Wind Turbine Installation (WTI) Jack-up

    Vessels in Europe indicates that more than ten installation

    Jack-ups are still required.

    So how is the pudding being eaten? Upon arrival in Europe,

    sailing here on keel, A2SEAs SEA INSTALLER installed the

    two Siemens 6MW test turbines successfully and on time

    at DONG Energys Gunfleet Sands 3 demonstration site.

    This was the first installation for the new vessel (Gus-

    toMSC NG-9000C design) and it is the first time ever that

    Siemens 6MW turbines are being installed offshore.

    The proof of thepudding is in the eating

    18 GustoMSC | InSide 20

    The Oxford Dictionary of Quotations tells us this

    proverb dates back to the 14th century with the word

    proof here meaning to test. The proverb applies

    across many sectors of human activity including the

    way in which a new generation of Jack-up vessel

    designs entering the market is responding to user

    needs. A modest success story.

    Thomas Lerchenmuller and Jan Mark Meeuwisse

    8

    7

    6

    5

    4

    3

    2

    1

    0

    45

    40

    35

    30

    25

    20

    15

    10

    5

    02011

    1.0

    3.9

    2012

    1.4

    5.3

    2013

    2.8

    8.1

    2014

    2.9

    10.9

    2015

    3.1

    14.0

    2016

    3.4

    17.4

    2017

    4.1

    21.6

    2018

    5.1

    26.7

    2019

    6.4

    33.1

    2020

    6.9

    40.0Annual

    Cumulative

    GW GW

    Annual offshore wind power

    installations 2011-2020

    and 2021-2030. Source:

    Wind in our Sails, EWEA.

    16

    14

    12

    10

    8

    6

    4

    2

    0

    160

    140

    120

    100

    80

    60

    40

    20

    02021

    7.8

    47.7

    2022

    8.5

    56.2

    2023

    9.1

    65.5

    2024

    9.6

    75.6

    2025

    10.5

    86.5

    2026

    11.5

    98.1

    2027

    12.4

    110.4

    2028

    13.0

    123.2

    2029

    13.2

    136.4

    2030

    13.7

    150.0

    Annual

    Cumulative

    GW GW

  • The vessel then installed 3.6MW turbines at Anholt and at

    the time of writing this article the SEA INSTALLER had just

    finished installing 30 foundations at the West of Duddon

    Sands Offshore Wind Farm, also in record time. So the

    proof has been successful, and this is one of the reasons

    that the SEA INSTALLER won the Offshore Renewables

    Award. This recognition from the Offshore Support

    Journal goes to a company, project or product that has

    made a significant contribution to the development of the

    offshore renewables market.

    Further proof? Having started work in September 2012, the Seajacks

    Zaratan installed the last of 80 mono-piles in April this

    year. This NG-5500C carried out installation at the

    Meerwind Offshore Park at a rapid pace, installing three

    monopiles in just under a day and a half.

    In relatively short succession, Fred. Olsen Windcar-

    rier took delivery of the Brave Tern and Bold Tern, both

    GustoMSC NG-9000C designs. The first job for the Brave

    Tern was installing met-masts at Dogger Bank and wind

    turbines on the BARD Offshore 1. The Bold Terns first job

    was installing turbines at the German Riffgat Windfarm,

    loading up to eight complete Siemens 3.6 MW turbine sets

    per trip.

    The record installation times achieved by these new WTI-

    Jack-up vessels is clear evidence that the new generation

    GustoMSC designs are contributing to the reduction of

    installation costs for Offshore Wind Farms. Besides the

    well-balanced design, the overall CAPEX of the NG-9000C

    series shows that size is not the only consideration; using

    the right tool for the right job is just as important.

    Other recent deliveries include the JB-118, a SEA-3250

    design for Jack-Up Barge BV, and BAM / Clough Australia

    have taken delivery from COSCO Shipyards of the IB-914,

    a new SEA-1250 design.

    A2SEA has ordered a second NG-9000C, called the SEA

    CHALLENGER. Seajacks has ordered the worlds largest

    and most advanced offshore wind farm installation vessel

    called the Seajacks Scylla, a GustoMSC NG-14000X design.

    In July 2012, Seajacks ordered the Seajacks Hydra. This

    will be Seajacks third NG-2500X design. NPCC, a company

    providing services to the Oil & Gas industry in the Persian

    Gulf, ordered its second NG-2500X design. The GMS En-

    terprise was announced in July 2013, the third NG-2500X

    unit for GMS. This marks the eighth NG-2500X to be built,

    making this design one of the most successful GustoMSC

    self-propelled Jack-up designs.

    Still more Jack-ups requiredWith thousands of turbines installed in a short time frame,

    good operations and maintenance (O&M) strategies need

    to be in place. In 2010, REpower took the lead, introducing

    their ROSS concept (Repower Offshore Service Strategy)

    with three self-operating units. Based on an NG-5300

    Jack-up vessel (like a mother ship), a platform supply

    vessel and a crewboat, this provides a 24/7 Hub. In the

    meantime, GustoMSC has been working on even more

    concepts and many of which will be on show at the EWEA

    Offshore 2013 exhibition in Frankfurt.

    19GustoMSC | InSide 20

    GustoMSC Jack-ups operational in the Offshore Wind industry in Europe. Source: Marine Traffic (October 2013)

  • 20 GustoMSC | InSide 20

    Deep water wind turbines will be key to unlocking the massive

    energy potential in Europe's offshore deep water where winds

    blow hard and often, and bottom based structures are not

    economically feasible. Worldwide, various demonstrator projects

    with full scale offshore floating wind turbines are in operation or

    under development. Currently Japan, Norway, Portugal and the US

    state of Maine are home to such facilities. It is an area in which

    GustoMSC designs will be playing a significant role in the future.

    Stable without ballast system and crane vesselsThe GustoMSC Tri-Floater is a three-column semi-submersible

    (see photos) with an offshore wind turbine column at the

    centre. The semi-sub structure can be tailored to fit any desired

    turbine and optimized for local environmental conditions. The

    design ensures the dynamic stability of the wind turbine. The

    semi-submersible hull design is such that the natural periods of

    motions are outside the range of the wave periods which means

    gentle motions and only mild accelerations.

    The Tri-Floater can be moored using a catenary mooring system

    consisting of a chain or steel wire. The mooring system is

    connected to the Tri-Floater high up the columns to minimize the

    overturning moment induced by the wind load and effectively

    reduce the mean inclination of the floater due to wind. This allows

    for a design without an active ballast system for roll and pitch

    compensation.

    Fons Huijs

    Artists impression of the GustoMSC Tri-Floater equipped with a 5MW wind turbine

    GustoMSC Tri-Floater design verified in wave basin

    Floating offshore wind turbines could well open up deep water areas for offshore wind power

    generation. GustoMSC has designed a semi-submersible wind turbine support structure:

    the Tri-Floater with a design that has recently been further optimized and verified with advanced

    simulations and model tests. They confirm some impressive claims.

  • 21GustoMSC | InSide 20

    Suitable for dry dockUnlike a tension leg platform (TLP), the semi-submersible does not

    rely solely on its mooring system for stability. The Tri-Floater

    equipped with the wind turbine is stable and can be towed to

    location on its own keel using tugs, where it is hooked up to a

    pre-laid mooring system. This installation procedure eliminates the

    need for expensive offshore crane vessels. Although the unit will be

    designed for low maintenance, the unit can be towed to an inshore

    location for inspection, repair or maintenance. When the Tri-Float-

    er is de-ballasted, the draft is such that it can enter most ports or

    dry docks; a major advantage against deep-draft spar type floating

    wind turbines.

    World's first model testing including control systemIn March 2013, an innovative model test campaign was performed

    for the GustoMSC Tri-Floater equipped with a 5 MW wind turbine

    at the Maritime Research Institute Netherlands (MARIN) test

    facility in Wageningen. These tests were the worlds first where the

    wind loads and blade pitch control system were tested with a fully

    operational scale model of wind turbine and floater. As the motions

    of floating wind turbines are driven by the combined influence of

    wind and waves, every effort was made to include both loads in a

    correct manner. When performing model tests with a floating wind

    turbine in a wave basin, the Reynolds number in the model test is

    significantly lower than at full scale. This affects the drag and lift

    coefficients of the wind turbine blades. The thrust achieved on the

    model scale turbine is typically reduced to only a fraction of the

    Froude scaled thrust, while the thrust has a strong influence on

    the motions of the floating wind turbine. It was therefore consid-

    ered essential to match the Froude scaled thrust as closely as

    possible in the model tests. MARIN achieved this by applying a

    different blade profile on the model scale turbine, which delivered

    the required thrust at the low Reynolds number.

    Control strategy criticalPrior to the model tests, simulations were performed with the

    Ansys AQWA hydrodynamic software coupled to the aero-servo-

    elastic software Phatas. Different turbine control systems were

    used in the simulations. This variation demonstrated clearly that

    the control strategy can have a strong influence on the motion

    response of the floating wind turbine. For the Tri-Floater, the

    Energy Research Centre of the Netherlands (ECN) developed a

    dedicated controller, which reduces the floater motions at the

    natural frequency of roll and pitch while keeping the power output

    constant at its maximum level.

    Because of the relevance of the control system, MARIN construct-

    ed a model scale wind turbine, including an active blade pitch

    mechanism, which was coupled to the ECN control algorithm during

    the model tests. This enabled GustoMSC to assess the performance

    of the Tri-Floater including its control system which had never

    previously been included in the testing of floating wind turbines.

    Tri-Floater withstands wind and wavesPreliminary results from the model tests showed that the Tri-Float-

    er design performs well under the combined influence of signifi-

    cant wind and waves. In all tests, the inclination of the Tri-Floater

    was less than 10 degrees and the nacelle accelerations were below

    3 m/s2. An initial comparison with the calculations and simulations

    performed by GustoMSC showed a good match with the model

    tests results. In-depth comparisons are ongoing and are expected

    to result in further validation and improvement of the calculation

    and simulation tools.

    GustoMSC has been working hard in this area for several years. Its

    efforts are now beginning to bear fruit, to the benefit of electricity

    users, green or otherwise, across the windy world.

    The GustoMSC Tri-Floater advantages - Proven semi-submersible technology

    - Gentle motions and accelerations

    - No need for active ballast system

    - Slender and robust structure

    - Assembly in port

    - Installation with tugs, no crane vessels needed

    The 1:50 scale model of the GustoMSC Tri-Floater tested in gusted wind and irregular waves by MARIN

    The GustoMSC Tri-Floater simulated in heavy wind and wave conditions

    5MW Tri-Floater concept design NREL 5 MW Reference Wind Turbine

    Rated power

    Rotor diameter

    Hub height above SWL

    5.0 MW

    126 m

    90 m

    Radius to column centre Column diameter

    Draft

    Air gap to deck structure

    Displacement

    36.0 m

    8.0 m

    13.2 m

    12.0 m

    3,630 t

    Tri-Floater main dimensions

  • GustoMSC has been selected by a significant number of reputable contractors

    worldwide. The long standing presence in the market for offshore units has boosted

    the number of newbuild GustoMSC-designed units and associated equipment.

    22 GustoMSC | InSide 19

    Recent projects and deliveries

    GustoMSC Offices in the Netherlands

    Sea Installer 2, for A2Sea GustoMSC design: NG-9000CBuilder: COSCO Nantong

    Delivery: 2014

    9 Qdrill drillships, for SeteBuilder: EEP & Engevix

    Delivery: 2016 - 2019

    6 DSS38E, for SeteBuilder: Brafels

    Delivery: 2015 - 2019Operating since 2011

    Deepsea Metro II, for Metrostar/OdfjellGustoMSC design: P10,000Builder: HHI

    Operating since 2009

    Gold Star & Alpha StarGustoMSC design: DSS38Builder: Keppel FELS

    BRAZIL

    Sea Installer

    JB-118

    Bold Tern

    Brave Tern

    NORTH SEA

    In operation

    Seajacks Zaratan Seafox 7

    West Elara Maersk Innovator

    Maersk Resolute Maersk Gallant

    courtesy A2S

    EA A/S

    NORTH SEA

    Floatel Endurance, for FloatelGustoMSC design: DSS2O-DP3-NSBuilder: KeppelFELS

    Delivery: 2014

    West Linus, for SeadrillGustoMSC design: CJ70Builder: Jurong

    Delivery: 2013

  • 23GustoMSC | InSide 19

    E-drill-3, for Energy DrillingGustoMSC design: OCEAN400-TDBuilder: COSCO (Guangdong)

    Delivery: 2015

    Crossway Eagle & Dolphin, for CBI-MMEERGustoMSC design: AJ46Builder: Dalian Shipyard

    Delivery: 2015

    GMS Enterprise, for GMS GustoMSC design: NG2500XBuilder: Sainty Marine Corp

    Delivery: 2014

    T.B.N. 1 & 2, for CotemarGustoMSC design: OCEAN500Builder: COSCO (Nantong)

    Delivery: 2014-2015

    CHINA

    4 units for Rowan

    4 units for Diamond Offshore 4 units for Noble Bolette Dolphin, for Fred. Olsen Energy

    Statoil CAT-J 1 & 2GustoMSC design: CJ70Builder: Samsung Heavy Industries

    Delivery: 2016-2017

    Seajacks ScyllaGustoMSC design: NG-14000XBuilder: Samsung Heavy Industries

    Delivery: 2015

    13 P10,000 drillships forFred. Olsen EnergyBuilder: Hyundai Heavy Industries

    Delivery: 2013-2015

    KOREASeajacks Hydra, for Seajacks GustoMSC design: NG-2500XBuilder: Lamprell Energy

    Delivery: 2014

    SEP-550, for NPCCGustoMSC design: NG-2500XBuilder: NPCC

    Delivery: 2014

    MIDDLE EAST

    T.B.N. 1 ,2 &.3, for Maersk DrillingGustoMSC design: CJ70Builder: Keppel FELS

    Delivery: 2013 -2015

    T.B.N. 1 & 2GustoMSC design: CJ46Builder: DDW-PaxOcean

    Delivery: 2015

    Drilling semi, for Caspian DrillingGustoMSC design: DSS38MBuilder: Keppel FELS

    Delivery: 2016

    SINGAPORE

    CATJ, for NobleGustoMSC design: CJ70Builder: Jurong

    Delivery: 2016

    COSLGift & COSLHunterGustoMSC design: CJ46Builder: CMHI

    Delivery: 2014

    T.B.N. 1 & 2, for K-GroupeGustoMSC design: CJ46Builder: CMHI

    Delivery: 2015

    T.B.N. 1 & 2, for Tianjin Haiheng OffshoreGustoMSC design: CJ46Builder: CMHI

    Delivery: 2015

    T.B.N. 1 & 2, for Bestford CapitalGustoMSC design: CJ46Builder: CMHI

    Delivery: 2015

    T.B.N., for BK MarineGustoMSC design: CJ46Builder: CMHI

    Delivery: 2015

    CHINA

    2 unitsGustoMSC design: CJ46Builder: CMHI

    Delivery: 2015

    T.B.N. 3 & 4, for Tianjin OffshoreGustoMSC design: CJ50Builder: CMHI

    Delivery: 2014-2015

    TBN 1,2,3 & 4, for TS DrillingGustoMSC design: CJ50Builder: Shanhaiguan Shipyard

    Delivery: 2015

  • GustoMSC B.V.

    P.O. Box 687, 3100 AR Schiedam

    Karel Doormanweg 25

    3115 JD Schiedam

    The Netherlands

    Telephone +31 (0) 10 28 83 000

    Telefax +31 (0) 10 28 83 001

    [email protected]

    GustoMSC Houston

    [email protected]

    www.GustoMSC.com

    Inside is a publication of GustoMSC

    GustoMSC is a renowned design and engineering company with a 150+ year

    history. The company specializes in the design of mobile units for the offshore

    oil and gas market as well as for the offshore construction market,

    including the installation of wind turbines. These units include jack-ups,

    semi-submersibles and monohull vessels such as drill ships. GustoMSC

    provides class approved basic designs and supplies associated equipment e.g.

    jacking, fixation and X-Y skidding systems and offshore cranes.