WO2008100151A1 - Equipement mobile pour forage sans tube-guide, intervention de puits, construction sous-marine et similaire à partir d'un navire - Google Patents

Equipement mobile pour forage sans tube-guide, intervention de puits, construction sous-marine et similaire à partir d'un navire Download PDF

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Publication number
WO2008100151A1
WO2008100151A1 PCT/NO2008/000052 NO2008000052W WO2008100151A1 WO 2008100151 A1 WO2008100151 A1 WO 2008100151A1 NO 2008000052 W NO2008000052 W NO 2008000052W WO 2008100151 A1 WO2008100151 A1 WO 2008100151A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile equipment
vessel
equipment according
drill floor
mast
Prior art date
Application number
PCT/NO2008/000052
Other languages
English (en)
Inventor
Trond Haugland
Original Assignee
Norshore Drilling A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norshore Drilling A/S filed Critical Norshore Drilling A/S
Priority to GB0915199A priority Critical patent/GB2460562B/en
Priority to MX2009008528A priority patent/MX2009008528A/es
Priority to BRPI0807474-7A2A priority patent/BRPI0807474A2/pt
Priority to AU2008215204A priority patent/AU2008215204A1/en
Priority to CN200880004769A priority patent/CN101675208A/zh
Priority to US12/526,676 priority patent/US20100116507A1/en
Publication of WO2008100151A1 publication Critical patent/WO2008100151A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/02—Supports for the drilling machine, e.g. derricks or masts specially adapted for underwater drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling

Definitions

  • the present invention relates to mobile equipment, and more particularly to the composition thereof, for use during riserless drilling, well intervention, subsea construction and the like from a dynamically positionable vessel having a moonpool.
  • one of the main objects of the present invention is to reduce the use of such costly drilling vessels or platforms during hydrocarbon exploration or production, so that riserless drilling, well intervention, subsea construction and the like can be carried out from, for example, already existing dynamically positionable vessels having a moonpool.
  • mobile equipment of the type mentioned in the introduction the equipment comprising, as disclosed in the characterising clause of claim 1, two masts located at the moonpool, a yoke extending between and movably arranged on the masts, a hydraulic top drive mounted on the yoke, and a drill floor mountable in connection with the moonpool. It is also desirable to have economy of space on and a minimum weight increase of the vessel in question, and that the mobile equipment can be mounted without major changes to and conversion of the vessel, and also to have a low centre of gravity.
  • the low centre of gravity means that the equipment is lowered considerably, as about 85% of its total weight is lower than four metres from the main deck of the vessel, and also as the drill floor itself is only built to a level within one metre from the main deck.
  • the space requirement is reduced also in relation to a derrick of standard type.
  • the respective mast can be mounted on a base, preferably of the prefabricated type, and can be laid down on the vessel deck using at least one hydraulic cylinder.
  • a base preferably of the prefabricated type
  • the yoke may be designed to be width-adjustable, thereby permitting alternative positioning of the mast bases.
  • the drill floor can be formed so as to be splittable and have a cut-out in the centre for the installation of slips. This permits easy displacement of the drill floor, for example, when the drill floor must be removed to gain access to the whole of the moonpool.
  • the cut-outs otherwise form a through-opening in the drill floor, for example, for passing through a drill string.
  • An iron roughneck can be provided on the drill floor, which is movably arranged thereon, and likewise an air winch, a hydraulic manipulator arm and the like. It will be appreciated that the low overall height of the drill floor gives advantages when devices of this type are to be brought onto the drill floor.
  • the mast base can act as a guide for the splittable drill floor.
  • Fig. 1 is a schematic side elevation, in the longitudinal direction, of equipment according to the invention on board a vessel;
  • Fig. 2 shows the equipment illustrated in Fig. 1, but seen in the transverse direction;
  • Fig. 3 shows the equipment illustrated in Fig. 1, but seen from the top;
  • Fig. 4 is a perspective view of the equipment according to the invention in operative position
  • Fig. 5 is a perspective view of the equipment according to the invention in lowered position for maintenance or during relocation of the vessel.
  • the present invention is intended for use on existing PSVs, AHVs, MPVs and similar vessels that are dynamically positionable and have a moonpool. However, this does not prevent the equipment from being equally suited to be put into service on newly built vessels.
  • Another condition that applies, for example, during drilling and well intervention, is that the vessels have sufficient storage tank capacity for drilling mud, bulk barite/bentonite and bulk cement. This is in addition to the need for accommodation for drill personnel, for example, 15 beds. The bed requirement is slightly smaller in connection with subsea construction operations only.
  • the equipment according to the invention is specifically intended to be used during riserless drilling, well intervention, subsea construction and the like from a dynamically positionable vessel with a moonpool 8.
  • the main components of the equipment are two masts 1 that are located on either side of the moonpool 8, a yoke 6 extending between and movably arranged on the masts, a hydraulic top drive 7 mounted on the yoke and a drill floor 3, 4 that is positionable over the moonpool 8.
  • Figs. 1 and 2 there is by way of example only shown one drill pipe 14 extending downwards from the hydraulic top drive 7, and one subsea accessory 15 that is mounted on the lower end of the drill pipe.
  • the subsea accessory may consist of a guide base 16 and a conductor pipe 17 of suitable diameter.
  • Each individual mast 1 is of any suitable design known in the field having sufficient height and load capacity.
  • the mast height is selected for the handling of, for example, drill pipes having a length of 9-13 metres.
  • the lower end of the mast is attached to a mast base 2.
  • the base is dimensioned for distribution of the load from the mast in a way that does not result in overloading and resultant damage to the vessel deck 9 and its underlying supporting structure.
  • the base is attached by welding or bolting.
  • At least one hydraulic cylinder 11 is arranged between the base 2 and the mast 1 which can be secured using a suitable swivel link 10.
  • the cylinder is fastened to the base and mast in any suitable manner, for example, using a pivot joint.
  • Such a possibility of laying down the masts horizontally on or close to the vessel deck is of course advantageous for the vessel's stability during relocation from one location to another.
  • the yoke 6 is of any suitable type and is, as mentioned above, arranged for movement up and down along the masts 1 during the actual working procedures.
  • the respective mast is in the form of a separate hydraulic mast cylinder, is formed having a chain drive, a rack drive and the like.
  • the yoke is of a width-adjustable type, which, for example, may mean variable positioning of the mast bases 2.
  • a hydraulic top drive 7 is mounted on the yoke 2. Moreover, as shown in Fig. 2, there is also provided a shackle device 12 and lifting gear 13 below the top drive. Heave compensation of any suitable type may also be provided, in a non-illustrated manner, in connection with the top drive.
  • the drill floor 3, 4 is advantageously splittable, which means that the whole moonpool 8, when required, can be uncovered by pushing the drill floor halves apart without first optionally removing, for example, the drill string. It will be understood that the drill floor halves can be supported displaceably on the mast bases 2. Each drill floor half is made having a cut-out 12. Thus, a through-opening is formed in the drill floor when positioned over the moonpool.
  • a standard drill floor usually has a maximum opening of about 1.32 metres. Slips (not shown) are also mounted in the drill floor opening in the respective half 3, 4 of the drill floor. Otherwise, the drill floor comprises an iron roughneck 5.
  • the iron roughneck is advantageously movably arranged on the drill floor, for example, using non-illustrated rails. As the drill floor is at a level close to the vessel deck 9, this allows easy handling of other tools (not shown in the drawings) such as a manipulator arm, an air winch and others, on the drill deck, for example, using a skid.
  • the aim is that the vessel's own systems should be used as much as possible so as not to unnecessarily take up deck space on board the vessel.
  • the equipment according to the invention also requires only a minimum of adaptations of the vessel itself, normally solely in connection with the mast bases.
  • a drilling procedure that is the most demanding of the processes involving use of the mobile equipment according to the invention can, for example, be carried out in the following way:
  • the vessel is moved to the drilling location and dynamically positioned above the drilling site.
  • the ROV is deployed and lowered towards the seabed.
  • a basket of transponders is run down on the air winch.
  • Pipes are taken from the storage space on the vessel deck using the pipe handling crane and laid on the ramp.
  • a drilling assembly including drill bit, direction-measuring tool, drill collar and drill pipe, is taken from the ramp using the lifting gear, put down in the slips and made up by the iron roughneck. The running in of pipes is stopped when the drilling assembly has come down to immediately above the seabed.
  • the string is placed/suspended in the slips, the top drive is unscrewed, a new drill pipe that is lying ready on the ramp is fetched, the new pipe is placed on the top of the string that is in the slips, the pipes are screwed together by the iron roughneck, the top drive is screwed into the new pipe, the string is released from the slips, and the drilling continues until the new pipe has been drilled down.
  • the hole is displaced with made-up mud that is pumped from the mud storage tank.
  • the string is pulled out, whilst the individual pipes are unscrewed from each other and placed in the storage space on the vessel deck.
  • the string is pulled up until a screw joint is at the right height above the drill floor, the string is put in the slips, the iron roughneck is moved forward and unscrews the pipe, the pipe is lifted out of the pipe box that is in the slips, the pipe hanging in the lifting gear is moved to the ramp by manipulator arms for guiding to the ramp, the lifting gear is released when the pipe has been laid down on the ramp.
  • the drilling is observed by the ROV.
  • the installation of conductor pipe of 76.2 cm The conductor pipe is laid on the ramp using a pipe handling crane. The pipe is moved using the lifting gear and is put in the slips. A new pipe is brought and set in, and the last pipe to be set in is a conductor pipe housing.
  • the pipes generally have a length of about 12 metres.
  • the conductor pipe of 76.2 cm is installed/ran on the drill pipe. Entering of the hole of 91.4 cm is monitored by the ROV. If there is a need for adjustment during the entering of the hole, the vessel is moved. The conductor pipe is placed on the bottom of the hole, and then the top of the conductor pipe housing is about 1.5 metres above the seabed.
  • the conductor string is subsequently cemented by pumping cement through the running string, i.e., the drill string, down the string and out from the bottom thereof, and then " upwards on the outside until the cement comes out on the seabed.
  • the cement is displaced using seawater. After displacement, the cement is on the outside of the whole conductor pipe string and 5 metres inside the bottom thereof.
  • At the bottom of the conductor pipe there is a return valve which prevents the cement from flowing back into the conductor pipe, there is higher pressure on the outside than on the inside because of the density of the cement mix.
  • the cement is mixed in the mobile cement mixer. Cement is blown from the vessel's bulk cement storage tanks to a service tank on the mixer. When the cement mix has the desired density, the cement mix is pumped down in the string.
  • the conductor pipe is held under tension until the cement has set, about 6 hours.
  • the running string/drill pipe is then released and can be pulled up and laid out on the vessel deck.
  • a hole of 66 cm is usually drilled down from the bottom of the conductor pipe.
  • a casing pipe of 50.8 cm is installed and cemented.
  • the drilling is carried out in the same as described above, as is the installation and cementing.
  • the top pipe of the casing string is in the form of a wellhead.
  • a trawl-proof protective cover is placed on the wellhead top. The cover can be put in place using the air winch. - If no more processes are to be carried out using the mobile equipment according to the invention, the vessel then goes ashore for dismantling of the equipment, which takes about two days.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

Equipement mobile pour forage sans tube-guide, intervention de puits, construction sous-marine et similaire à partir d'un navire positionnable ayant un puits central (8), un étrier (6) s'étendant entre les mâts et disposé de façon mobile sur ceux-ci, une commande supérieure hydraulique (7) montée sur l'étrier et un plancher de forage (3, 4) pouvant être monté en raccordement avec le puits central (8).
PCT/NO2008/000052 2007-02-12 2008-02-11 Equipement mobile pour forage sans tube-guide, intervention de puits, construction sous-marine et similaire à partir d'un navire WO2008100151A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB0915199A GB2460562B (en) 2007-02-12 2008-02-11 Mobile equipment for riserless drilling,well intervention,subsea construction and the like from a vessel
MX2009008528A MX2009008528A (es) 2007-02-12 2008-02-11 Equipo movil para perforacion sin tuberia de subida, intervencion de pozo, construccion submarina y similares desde una embarcacion.
BRPI0807474-7A2A BRPI0807474A2 (pt) 2007-02-12 2008-02-11 Equipamento móvel para perfuração desprovida de tubos ascendentes, intervenção de poço, construção submarina a partir de uma embarcação
AU2008215204A AU2008215204A1 (en) 2007-02-12 2008-02-11 Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel
CN200880004769A CN101675208A (zh) 2007-02-12 2008-02-11 在船舶上用于无立管钻井、修井、海底施工等的移动设备
US12/526,676 US20100116507A1 (en) 2007-02-12 2008-02-11 Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20070809 2007-02-12
NO20070809A NO325441B1 (no) 2007-02-12 2007-02-12 Mobilt utstyr for stigerorlos boring, bronnintervensjon, undersjoisk konstruksjon fra et fartoy

Publications (1)

Publication Number Publication Date
WO2008100151A1 true WO2008100151A1 (fr) 2008-08-21

Family

ID=38515326

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2008/000052 WO2008100151A1 (fr) 2007-02-12 2008-02-11 Equipement mobile pour forage sans tube-guide, intervention de puits, construction sous-marine et similaire à partir d'un navire

Country Status (9)

Country Link
US (1) US20100116507A1 (fr)
CN (1) CN101675208A (fr)
AU (1) AU2008215204A1 (fr)
BR (1) BRPI0807474A2 (fr)
GB (1) GB2460562B (fr)
MX (1) MX2009008528A (fr)
NO (1) NO325441B1 (fr)
RU (1) RU2009134107A (fr)
WO (1) WO2008100151A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2009677C2 (en) * 2012-10-22 2014-04-23 Itrec Bv A vessel including a drilling installation, and a method of drilling a well using the same.
WO2015166410A1 (fr) * 2014-04-29 2015-11-05 Fincantieri S.P.A. Navire de forage

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7921918B2 (en) * 2008-06-26 2011-04-12 Bryant Jr Charles Larue Support apparatus for a well bore tool
US20110180266A1 (en) * 2008-06-30 2011-07-28 A.P. Meller-Mærsk A/S Drill ship for deep sea intervention operations
NL2007125C2 (en) * 2011-07-15 2013-01-17 Itrec Bv Drilling vessel
US8960301B2 (en) 2011-08-22 2015-02-24 Halliburton Energy Services, Inc. Completing underwater wells
EP3033268B1 (fr) * 2013-08-16 2021-07-21 Itrec B.V. Navire de forage en mer monocoque
US9731796B2 (en) * 2013-12-31 2017-08-15 Helix Energy Group Solutions, Inc. Well intervention semisubmersible vessel
NL2012351B1 (en) * 2014-03-03 2015-11-26 Itrec Bv Offshore Drilling Vessel.
WO2017031464A1 (fr) * 2015-08-19 2017-02-23 Luc Deboer Systèmes et procédés pour puits sans tube prolongateur

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4039177A (en) * 1974-06-13 1977-08-02 Global Marine Inc. Heave compensation apparatus for a marine mining vessel
WO1999011518A1 (fr) * 1997-08-29 1999-03-11 Dsnd Offshore As Appareil pour une installation mobile, notamment un vaisseau de haute mer
WO2000011305A1 (fr) * 1998-08-20 2000-03-02 Overseas Industries Ltd. Appareil de forage hydraulique
WO2000022277A1 (fr) * 1998-09-25 2000-04-20 Engineering & Drilling Machinery As Procede et dispositif destine a la mise sous tension d'un tube ascenseur

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US3368509A (en) * 1966-06-21 1968-02-13 Mcmullen Ass John J Drill ship
US3939990A (en) * 1974-06-13 1976-02-24 Global Marine, Inc. Automatic roughneck
US4200054A (en) * 1976-12-10 1980-04-29 Elliston Thomas L Stabilized hoist rig for deep ocean mining vessel
US4324194A (en) * 1976-12-10 1982-04-13 Hydra-Rig, Inc. Stabilized hoist rig for deep ocean mining vessel
GB8600053D0 (en) * 1986-01-03 1986-02-12 Drg Uk Ltd Off-shore drilling
US7644784B1 (en) * 2004-11-05 2010-01-12 Eagle Rock Manufacturing, Llc Transport watercraft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039177A (en) * 1974-06-13 1977-08-02 Global Marine Inc. Heave compensation apparatus for a marine mining vessel
WO1999011518A1 (fr) * 1997-08-29 1999-03-11 Dsnd Offshore As Appareil pour une installation mobile, notamment un vaisseau de haute mer
WO2000011305A1 (fr) * 1998-08-20 2000-03-02 Overseas Industries Ltd. Appareil de forage hydraulique
WO2000022277A1 (fr) * 1998-09-25 2000-04-20 Engineering & Drilling Machinery As Procede et dispositif destine a la mise sous tension d'un tube ascenseur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2009677C2 (en) * 2012-10-22 2014-04-23 Itrec Bv A vessel including a drilling installation, and a method of drilling a well using the same.
WO2014065655A1 (fr) * 2012-10-22 2014-05-01 Itrec B.V. Navire comprenant une installation de forage et procédé de forage d'un puits mettant en œuvre ledit navire
CN104755691A (zh) * 2012-10-22 2015-07-01 伊特里克公司 包括钻井装置的船舶及使用其钻井的方法
US9341029B2 (en) 2012-10-22 2016-05-17 Itrec B.V. Vessel including a drilling installation, and a method of drilling a well using the same
RU2639761C2 (ru) * 2012-10-22 2017-12-22 Итрек Б.В. Судно, включающее в себя буровую установку, и способ бурения скважины с применением установки
WO2015166410A1 (fr) * 2014-04-29 2015-11-05 Fincantieri S.P.A. Navire de forage

Also Published As

Publication number Publication date
GB2460562B (en) 2011-02-09
AU2008215204A1 (en) 2008-08-21
GB0915199D0 (en) 2009-10-07
NO20070809L (no) 2007-08-17
NO325441B1 (no) 2008-05-05
CN101675208A (zh) 2010-03-17
US20100116507A1 (en) 2010-05-13
RU2009134107A (ru) 2011-03-20
MX2009008528A (es) 2010-03-01
BRPI0807474A2 (pt) 2014-05-13
GB2460562A (en) 2009-12-09

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