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DRILLING05OFFSHORE DRILLINGHuisman offers complete drilling packages and isdedicated to explore and realise new solutions to improvedrilling operations. Our projects are typically complex andinnovative, requiring solution-aimed thinking, technicalexcellence and partnerships with our clients. This hasalready resulted in a number of new value-adding solutionsand orders for innovative and technically challengingdrilling equipment sets.DRILLSHIPSHuisman has in-house vessel design capabilities. This allowsus to provide solutions in which vessel and equipment are fullyintegrated. The main feature of Huisman’s drillship design is theDual Multi Purpose Tower (DMPT) and the reduced height of thedrill floor. By changing the way the BOP is deployed Huismanwas able to significantly lower the position of the DMPT and drillfloor on the vessel.This improved the vessel stabiliy and increased the efficiencyand safety on board. Designing both vessel and equipmentallows for optimisation of the entire drilling unit. The result isa more compact drilling vessel compared to drillships withequal capacities and, therefore, lower building costs and loweroperational costs.2x 1,090mt Dual Multi Purpose Towers,Noble Globetrotter I, Noble Drilling1617

DRILLING05OFFSHORE DRILLINGBULLY DRILLSHIPSGLOBETROTTER DRILLSHIPSHUISDRILL 12000flows on board are a top priority. The design of the vesselIn the first half of 2007 Huisman was awarded a contract forThe innovative Noble Globetrotter drillships, based onAfter the delivery of the two Noble Globetrotter vesselsis made to optimally accommodate the drilling process.the design and manufacturing of the drilling tower and relateda Huisman design, represent a true stepchange in theHuisman further developed the design. This resulted inpipe, riser and BOP handling equipment for the Noble Bully I.construction of ultra-deep water drillships. The vessels offerthe HuisDrill 12000. The HuisDrill 12000, as designed withThese changes in the design result in a vessel size thatThe order for the outfitting of a second vessel followed in 2008.improved operational efficiency due to the different equipmentHuisman’s DMPT technology and unique constructionis 216m x 39m with a maximum VDL of 30,000mt. DWOPsIn 2013 and 2014 Bully I & II respectively were awarded ‘Shelllayout. Designing both vessel and equipment allows formethodologies, exceeds many of the capabilities of competinghave shown that the vessel can deliver wells in 75 - 80% offloater rig of the year’. The Noble Bully drillships are designedoptimisation of the entire drilling unit. The result is a moredrillship designs. The Huisman approach results in severalthe time compared to other state of the art units.to offer a lower cost and more flexible alternative for drilling incompact drilling vessel.functional and operational advantages.The design is possible because of three radically differentThe vessel has a large unobstructed work deck forward andFEATURES HUISDRILL 12000Besides the drilling mast, Huisman also delivered all drill pipefeatures, namely: a DMPT, a hoistable floor and the engineaft of the tower that is flush with the drill floor. All ventilation, Compact vesselhandling equipment, the riser tensioning system, the riserrooms under the accommodation. The DMPT has no V-doormooring, access ladders and mob-boats are located below Dual Multi Purpose Towerhandling cranes, both deck cranes and the driller’s cabin. Thislimitations and a small footprint. It is possible to skid the BOPthis work deck. The vessel is equipped with 150ft risers Drill floor flush with deckincludes all power systems and an integrated control system,underneath the floor when it is hoisted and then lowered onminimising the time for running risers. Aft of the tower is a Movable floorwhich also controls third party equipment.the construction side. The BOP is then skidded from the aftunique movable construction floor which allows running of Riser storage in hullto the forward well center by means of a skid cart that moveslarge subsea components in one piece. Automated pipe handling Riser tensioner systemThe drilling unit is optimised as a whole. The design of the High payload / displacement ratiodrilling package, the functionality thereof and the material Engine rooms under accommodation blockultra-deep and arctic conditions.along the moon pool under the substructure.1819

DRILLING05OFFSHORE DRILLINGSEMI-SUBMERSIBLESThe drill floor, in the center of the rig, can be raised and lowered.In the mid 90’s Huisman was involved in the design of theIn the lowest position the drill floor is flush with the main deck ofPride Amethyst 2 class semi-submersible drilling rig. Thethe unit, enabling easy mobilising of equipment. When the floor issemi-submersible has a unique Huisman designed vertical riserraised, the floor can compensate for the vessel’s heave motion.storage. Four semi-submersible units were built according to theThe heave compensated floor enables that tubulars are alwaysHuisman design, including Huisman built riser handling cranesheave compensated (by either the heave compensated travellingand offshore cranes. The gained experience is continuously usedblock or the heave compensated floor). This significantly reducesin the design of complete drilling semi-submersibles.downhole surge and swab pressures, enables MPD on floaters inheavy seas, enables running of completions with control lines inThe innovative harsh environment semi-submersible drilling unitheavy seas and enables easier and faster coring.features a very large free deck area, approximately 1,5 times thedeck space available on other semi designs. There is no largeDue to the MPT and the heave compensated floor, the handlingaccommodation superstructure since the accommodation isprocedure of the SSBOP and X-mas trees is changed resultingcompletely fitted inside the deck box. The robotic Multi Purposein a complete elimination of the substructure. This lowers theTower (MPT) outfitted with manipulators and setback drum isvertical center of gravity and increases the stability of the unitfitted on top of the deck box. On the aft deck of the unit anresulting in a high payload / displacement ratio.automated container skidding system is present, to enable fullhands-off handling of containers with tubulars and other goods.The unit can be equipped with thrusters to have DP3 capability,This improves the safety of the rig and reduces the requiredan anchoring system or thruster assisted mooring.people on board.2x 820mt DMPT Drilling Semi-Submersible20Harsh Environment Semi21

DRILLING05OFFSHORE DRILLINGARCTIC SROTATING CANTILEVERThe Huisman designed Arctic S enables operations at twoWhen operating in ice the unit will ballast to ice draft (partlyThe Rotating Cantilever is designed for efficient operations.operating drafts. The unique design combines the advantagessubmerged deckbox) to protect the riser against level ice,By rotating the cantilever as opposed to skidding itof a conventional semi-submersible resulting in very lowrubble and ice ridges. The round conical shaped deckbox hastransversely, the cantilever has a large drilling envelopemotions in waves and a heavily strengthened ice resistant unita heavily strengthened structure at waterline level to deflectwithout sacrificing deck space. Especially the transversalwhen operating in ice at deep draft.and break the ice. The round floater is also strengthenedreach has more than doubled with respect to all existingfor transit through broken ice (icebreaker assisted). Whendesigns. It further eliminates the need for a transverseThe Arctic S drilling unit is designed to drill wells in arcticno ice is present the unit operates at its operating draft asskidding substructure on top of the cantilever or transversalconditions, moored in ice infested waters with ice thicknessa conventional semi-submersible unit. Station keeping inskid rails on the main deck. A variety of setups for theup to approximately 1,0 - 1,5m. Depending on ice conditions,ice infested waters is achieved by a heavy 16-point mooringdrilling equipment can be mounted on top of the cantilever,ice breaker support can be required. The unit consistssystem. The unit can operate in water depths between 50depending on the specific requirements. Features such asof a round floater, eight columns and a round deckbox.and 1,500m. If required the design can be customised tooffline standbuilding, offline building and handling of X-masset the unit on the seabed in shallow water.trees, coiled tubing operations etc. can be incorporated.2223

DRILLING06WELL INTERVENTIONWell intervention and workover operations are performedsurface equipment heaves up and down with respect to theOPEN WATER SYSTEMfor maintenance purposes to keep production levels up,deck. Downhole tools may be lowered through the riser onThe Huisman open water intervention system is based onbut also to get reservoir information and sometimes towireline, slick line or coiled tubing.a 150mt single fall MPT that provides a single lift point overchange out entire X-mas trees. Well intervention operationsa moonpool. The tower’s heave compensated hoist systemrepresent a large portion of the total field development cost.GENERALcan safely deploy modules to water depths up to 3,000m.Therefore reducing these cost significantly increases theTo serve both the open water and the riser based wellTwo trolleys, travelling the entire length of the tower, guide thefield economics. Up until now, most of the intervention workintervention markets, Huisman has developed two separatelifting hook and the subsea modules during lifting operations.has been performed by large expensive drillships and semi-systems. Both systems are based on the Multi Purpose TowerDepending on the vessel design, the lower trolley can travel allsubmersibles. By performing the well interventions from(MPT) which is responsible for all vertical movement of thethe way down into the moonpool to the vessel base to safelyspecialised dedicated vessels, the workover cost can beequipment on board. The MPT has the same functionality asdeploy subsea equipment through the moonpool.significantly reduced and the HSE improved. In the industrya normal derrick, but offers improved accessibility to the wellthere is a clear difference between ‘open water’ and ‘risercenters, which allows for new improved handling proceduresTypical applications for the open water system include:based’ intervention. Downhole tools may be lowered onthat increase efficiency and safety. The superior accessibility¡ Wire line and slick line servicesslick or wireline to perform logging, plugging, perforating, etc.to the well center and small footprint of the MPT are ideally¡ X-mas tree installationFor riser based intervention a high pressure riser is used assuited for well intervention and subsea installation services.¡ Plug and abandonmenta conduit between the seafloor and the vessel. Since theSubsea equipment can be skidded into the well center from¡ Subsea deploymentriser is high pressure, there is no telescopic joint and so thethree sides, giving the operator optimal flexibility.FEATURES OPEN WATER SYSTEM24 Multi Purpose Tower – SWL 150mt Active and passive heave compensation Deployment capability of up to 3,000m Guide and pod wire system Guide trolleys Accessible from three sides Small footprint of tower Flush deck Skidding of all intervention equipment Single lift installation25

DRILLING06WELL INTERVENTIONRISER BASED SYSTEMhandling of heavier riser and extended water depth capability.Huisman’s 800mt Multi Purpose Tower is perfectly suitedTo improve logistics and equipment handling on deckfor riser based well intervention. The unique passive heaveHuisman also supplies pipe handling equipment and deckFEATURES RISER BASED SYSTEMcompensated hoist system of the MPT provides safe andskid systems. The modular nature of these systems combined Multi Purpose Tower – SWL 800mtredundant means to supply top tension to the riser. The railswith the small footprint and excellent accessibility of the MPT Active and passive heave compensationon the MPT are extended into the moonpool allowing theallow for an almost infinite number of system variations and Splittable blocksguide trolley to travel with the load during the deployment.deck layouts. With these tools Huisman can provide efficient Accessible from three sidesFor ultra-deepwater operations or operations in harshand safe solutions for both monohulls and semi-submersibles. Hoistable drill floor Flush with main deckenvironments the passive heave system of the MPT can beupgraded to double capacity. With this upgrade the maximumTypical applications for the riser based system include: Offline storage for riser tensioning ringheave stroke of the system is doubled.¡ Wire line and slick line services Deck skid system¡ Coiled tubing services No unguided lifts during riser installationInstead of the passive heave compensation upgrade Huisman¡ Coiled tubing drillingalso provides riser tensioner systems that can be added¡ Through tubing rotary drillingto further extend the system capability. The riser tensionersystem will allow a broader range of operations and allows2627

DRILLING07MODULAR RIGSThe oil and gas exploration and production industry is currentlyLOC400 with a higher hook load capacity and the ability toAUTOMATIONfacing the challenge to commercially exploit unconventionaldrill deeper wells. To meet today’s demand for faster, moreThe rigs are designed to move people out of harms way.resources, requiring large amounts of wells to be drilled inflexible operations in unconventional plays, Huisman hasThe high degree of automation, including automatedFEATURES MODULAR RIGSareas that have traditionally not always been exploited. As ataken the lessons learned from their previous modular rigs andconnections and automated tripping, substantially removes High automated tripping speedsresult, drilling will need to be executed under stricter safety,redesigned them into a new serie of modular rigs.people from the drill floor during most operations and minimises Auto drillerhuman involvement during other operations. Due to the high Fast rig movesMulti pad drillingtransportation, and environmental regulations. Furthermore,the well cost will need to be lower for the resources to beREDUCTION OF FLAT TIMEgrade of automation, a limited crew is needed. It is no longer exploitable.Huisman’s drilling rigs are designed to reduce flat time on anynecessary to have a crew on the drill floor during the Double drum drawworksSplittable blockswell. Reduction of flat time includes extremely quick rig moves,process. The driller oversees the operation from the cabin Huisman’s first land drilling rig, the LOC250 was firstlyoffline testing of BOPs, incorporation of all sensors in rig designand can intervene at any time when necessary. During Rig walking systemintroduced in 2005, was designed to take advantage ofto reduce third party equipment, casing running equipmentautotripping, tripping in and out of the hole can be done Independent backyardEmerging Casing While Drilling technology in order to reduceincluded with rig package, efficient autodriller with very accuratewith low physical interference of the driller. The autotrip Craneless rig upthe cost as well as the environmental impact of drilling a well.weight on bit and one size fits all pipe handling. This results infunction continues its cycle while guarding certain parameters Integrated Huisman mpd (option)After a few years the demand for deeper / horizontal wellsrigs that reduce unseen downtime, as less time is spent waitingsuch as hook load and safety interlocks.triggered the development of the LOC250’s successor: theand paying for third party equipment.2829

DRILLING08ONSHORE DRILLINGLOC400rigs can easily be built up and moved quickly between wells,Two of the most important features of the LOC are its compacteither between single locations, or multiwell pads. The HM150size and the possibility to break down the entire rig into 19rig is fully trailerised and can be moved within a few hours. Themodules with the dimensions of standard ISO containers.modular InnoRig 250 is made for fast rig moves and easy rig up.The InnoRIg XL is designed for maximum efficient operations,Since the standard ISO containers can be transported quicklycharacterised by high automated trip speeds of 4,000ft / hr,and economically by any container ship, train, or truck, the LOCfast connections, large setback capacities and integrated casingcan be used to drill wells anywhere in the world. Transportationrunning.cost between worldwide locations are no longer an issue. Thecraneless rig up procedure and standard road transportableThe rigs can be delivered with a walking system to enablemodules further reduce human exposure during the activitiespad drilling. Due to the open substructure, wells can bewith the most risk and lower the time required for mobilisation.easily approached. For land applications, the craneless rigThe LOC is a highly automated rig built for quick rig moves andup procedure and easy transportable modules further reducehigh performance drilling through high automation.human exposure during the activities with the most risk andlower the time required for mobilisation. Offshore, the rig can beINNORIG SERIES & HM150 RIGSinstalled in a few loads, minimising installation time. The modularThe Huisman modular rigs are designed to better fit the needsrigs are specifically designed for the development of todays andof a drilling rig in modern land and offshore applications. Thetomorrows unconventional resources.HM60, HM150, Innorig C400, Innorig L60, Innorig XL90/120FEATURES LOC400FEATURES INNORIG Small footprint Auto drilling and tripping Auto drilling and tripping Small modules Very quick rig moves Multi pad drilling Splittable blocks Double drum drawworks Splittable blocks Rig walking system Independent backyardInnoRig XL 9030HM60 Workover Rig31

HUISMANAdmiraal Trompstraat 23115 HH SchiedamP.O. Box 1503100 AD SchiedamHarbour no. 51The NetherlandsEmail: Phone: 31 (0)88 070 22 22

market: the LOC 250. This is a fully containerised super single drilling rig for use on land and offshore. The introduction was soon followed by the LOC 400. A new range of land rigs has been developed in close cooperation with the market, outperforming peers on rig move and pipe running speeds.